Re: Stus-List Slip Choice, backing in > Prop Change
I replaced a Martec with a two blade fixed, and a folding two blade gori. I like the Gori, it works great, have no issues stopping the boat. I read that same article about the 3 blade gori and this did not support my own experience with the two blade, which was superior to the martec and at least the equal of the fixed. (which was a different pitch and slightly larger in diameter) . I have been reading the posts about prop walk with some interest. I dock Windstar single handed a lot and prop walk is really not a problem for me, though when forced to think about it, there is l a slight tendency to pull to port when using reverse + throttle to stop. Docking port-side-to is so mildly preferred as to be academic. Not sure if this is the prop itself, or the centre-line prop shaft. Will try some precision backwards driving for the marina audience next season! Some photos comparing the Gori to the Martec it replaced. Photos do not do justice to the impressive bronze sculpture that is the Gori, (looked great on my desk at the office) nor is the dried blood clearly visible. (It does have some sharp edges that are exposed when disassembled.) http://cncwindstar.blogspot.ca/2016/10/gori-2-blade-prop.html Dave 33-2 Message: 4 Date: Mon, 24 Oct 2016 16:30:35 -0400 From: Michael BrownTo: cnc-list@cnc-list.com Subject: Message-ID: <4165664143-15...@mail.tkg.ca> Content-Type: text/plain; charset="utf-8" The Gori did poorly, though note it was a three blade folding. Also Gori spec'd the wrong size of prop according to a note at the end of the article. It is a good article but I noted that most of the props stopped from 6 kts in 8 - 10 seconds, the majority of them did 6.4 - 6.65 kts ahead. For me the biggest differences would be in prop walk from 9 to 16%, nearly 70% more prop walk force. Overall the Flex-O-Fold 2 blade looks to be a good choice. The Gori 2 blade physically is very similar to the Flex-O-Fold. Anyone have experience testing those two against each other? Michael Brown Windburn C 30-1 From: "Nauset Beach" ? Mike, Several people on the list have retired their Martec props for the very reason you cite: very poor reverse performance. ?Many have changed to 2 blade Flex-O-Fold geared props and the difference in reverse is dramatic. ? Take a look at a prop test article from Yachting Monthly in the UK that Flex-O-Fold posted on their website at this link: http://www.flexofold.com/upload_dir/docs/Test_YachtingMonthly_low.pdf The Gori did not rank very well. ? I believe everyone who has switched to a Flex prop has been happy, once they get the pitch correct. ?I was initially spec'ed a 16 Diameter x 13 Pitch to replace a 16 x 14 Martec,. ?That was too much pitch and was getting severe cavitation / vibration. ?Now I have a 16 x 12 with better performance and very little vibration. ? Brian ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in > Prop Change
The Gori did poorly, though note it was a three blade folding. Also Gori spec'd the wrong size of prop according to a note at the end of the article. It is a good article but I noted that most of the props stopped from 6 kts in 8 - 10 seconds, the majority of them did 6.4 - 6.65 kts ahead. For me the biggest differences would be in prop walk from 9 to 16%, nearly 70% more prop walk force. Overall the Flex-O-Fold 2 blade looks to be a good choice. The Gori 2 blade physically is very similar to the Flex-O-Fold. Anyone have experience testing those two against each other? Michael Brown Windburn C 30-1 From: "Nauset Beach"Mike, Several people on the list have retired their Martec props for the very reason you cite: very poor reverse performance. Many have changed to 2 blade Flex-O-Fold geared props and the difference in reverse is dramatic. Take a look at a prop test article from Yachting Monthly in the UK that Flex-O-Fold posted on their website at this link: http://www.flexofold.com/upload_dir/docs/Test_YachtingMonthly_low.pdf The Gori did not rank very well. I believe everyone who has switched to a Flex prop has been happy, once they get the pitch correct. I was initially spec'ed a 16 Diameter x 13 Pitch to replace a 16 x 14 Martec,. That was too much pitch and was getting severe cavitation / vibration. Now I have a 16 x 12 with better performance and very little vibration. Brian ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
As Rob knows I back in all the time as my preferred method of docking. On the frers 33 the shaft I centered and the prop is RH so there is some prop walk to port in reverse but it is not pronounced. The biggest issues are visibility and the lack of bite of the prop when shifting from forward to reverse. If I am travelling at three knots forward and then shift to reverse it takes well over 30 seconds for the boat to slow to a stop and then start moving backward. Meanwhile the bow will blow all over the place. This makes coming in bow first to a slip a bit problematic if moving at any speed since reverse really dow not put on the brakes for me. The prop is a Martec elliptical folding prop. The problem with visibility is that these older designs tend to have a very beamy boat midships and much narrower transom. This makes helmsman lose sight of dock edge as we get close. On top of that if sailing with a crew they are very hard to see through. Like many others here I put the boat in reverse at the end of the marina system and then back the entire way in to my slip. I will also be at idle and go in and out of reverse as we get close. I stand to the side of the wheel and drive it just like a car which has the turning wheels on the front. Once the boat is in place a very short burst of fwd stops the boat. It is simple and very easy. Most problems with docking are after the boat is lying right alongside when someone pulls the bow in too soon or too late etc ... but that is minor One question that I have been wondering is how much difference would a geared prop make for initial bite in reverse. Someone mentioned that it was very good with a Gori but I would think that not much difference than a Martec. Mike Persistence. Done for the season Halifax, NS From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of robert via CnC-List Sent: Friday, October 21, 2016 10:10 PM To: 1 CnC List; Chuck S Cc: robert Subject: Stus-List Slip Choice, backing in Chuck: I agree with you.backing in does provide more control, especially for the bow. I have done this a few times over the past month or so as I have had to move my boat from one slip to another and I chose to back in so I did not have to change my lines and fenders from one side to the other.it was far less stressful than I had thought. It makes leaving the slip a lot easier as well. Rob Abbott AZURA C 32 - 84 Halifax, N.S. ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
https://www.youtube.com/attribution_link?a=cyVRx6c_TnE=/watch?v%3DPoGMAEjiHmU%26feature%3Dem-subs_digest-vrecs=GeuiBLhXxAu6-WjfVBK83IUavUYfcFAriejNUGCfbfwhxGTXzzXRAwV9Jper8qVLBkuLlZTpxiWT0bXXqiJLITkQpVuorZ9LYkTFfJQo07l2EUcLlhiYL7Ix-CGxxsMtwb2aS78wrf4cCFwsORsanqC0g3KRx9rIGLYlAY9xEE2Dc1Q%3D Sent from my iPhone > On Oct 23, 2016, at 10:38 AM, robert via CnC-List> wrote: > > Andrew: > > My prop turns clockwise, therefore, when in reverse, the stern of the boat is > initially pulled to 'port' until there is sufficient water flow over the > rudder to gain steerage. > > Now add to that, my prop shaft is not centered, it is angled to 'port' a few > degrees which accentuates the prop walk or pull of the stern to port. > > This short video will highlight: https://www.youtube.com/watch?v=1TMB4-EPMAI > > Rob Abbott > AZURA > C 32 - 84 > Halifax, N.S. > > > >> On 2016-10-22 12:17 PM, Andrew Burton via CnC-List wrote: >> I'm a bit puzzled by the talk about prop walk and offset shafts. >> I've found that prop walk is pronounced when the shaft is on centerline, >> but when the shaft is offset, it is offset to minimize prop walk. i.e. If >> the prop pulls to port, then the shaft is offset to starboard cancelling the >> effects of the prop walk in reverse. At least, that's how it should be done. >> Obviously, others here are experiencing things differently, which I find >> surprising. >> >> Andy >> C 40 >> Peregrine >> >> Andrew Burton >> 61 W Narragansett >> Newport, RI >> USA02840 >> >> http://sites.google.com/site/andrewburtonyachtservices/ >> +401 965-5260 >> >> ___ >> >> This list is supported by the generous donations of our members. If you wish >> to make a contribution to offset our costs, please go to: >> https://www.paypal.me/stumurray >> >> All Contributions are greatly appreciated! > > > ___ > > This list is supported by the generous donations of our members. If you wish > to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
Andrew: It is quite common to have an offset angled prop shaft. Most if not all C 30 MK I's have angled prop shafts..other C models as well. My understanding for it, rightly or wrongly, is first to allow for the removal of the prop shaft without having to drop the rudder. Seems reasonable. Secondly, as I understand it, with a right turning prop (clockwise as mine is) it offsets the slight effect of the bow turning to starboard in the forward movement with the wheel (rudder) center lined. I don't think it is a design flaw. Ask the C guys if it is? Rob Abbott AZURA C 32 - 84 Halifax, N.S. On 2016-10-23 11:59 AM, Andrew Burton wrote: No kidding, Rob! I haven't seen a builder do that before. I'd call it a design flaw. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 On Oct 23, 2016, at 10:38, robertwrote: Andrew: My prop turns clockwise, therefore, when in reverse, the stern of the boat is initially pulled to 'port' until there is sufficient water flow over the rudder to gain steerage. Now add to that, my prop shaft is not centered, it is angled to 'port' a few degrees which accentuates the prop walk or pull of the stern to port. This short video will highlight: https://www.youtube.com/watch?v=1TMB4-EPMAI Rob Abbott AZURA C 32 - 84 Halifax, N.S. On 2016-10-22 12:17 PM, Andrew Burton via CnC-List wrote: I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
I have wondered for a while why the 30-1 prop shaft is on the port side. My Gori 2 blade folding has excellent bite in reverse and the prop walk is to port. Having the shaft on port would give one the theory that the few degrees of offset would add to pulling the stern to port. The Goman Express 30 also has RH drive and a slightly offset to port shaft. Michael Brown Windburn C 30-1 Date: Sat, 22 Oct 2016 11:17:52 -0400 From: Andrew BurtonI'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA 02840 ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
I think that, as Josh said, the whole thing depends on the property walk. However, if I have left/right and port/still. correctly, if your boat turns to port when reversing and you dock bow in, you want to be on the left side (looking out) of the fairway. This way, when you go out, you need to turn to port (in reverse) and the prop walk helps (the boats turns almost on its own). If I had a choice, I would select the dock finger to port - this way when you dock and you hit reverse to stop, the prop walk brings the stern towards the finger/pilings. If you want to turn against the prop walk in reverse, my way of doing it is to put the transmission in reverse, give the engine and burst of speed and put it back in neutral. The burst of speed gets the boat moving (the heart rudder starts working), but you don't introduce the prop walk that would work against you during the maneuver. The most important is to figure out what works for you. I hope it helps. Marek Sent from my Bell Samsung device over Canada's largest network. Original message From: Josh Muckley via CnC-List <cnc-list@cnc-list.com> Date: 10/21/16 16:03 (GMT+01:00) To: C List <cnc-list@cnc-list.com> Cc: Josh Muckley <muckl...@gmail.com> Subject: Re: Stus-List Slip Choice Original message From: Josh Muckley via CnC-List <cnc-list@cnc-list.com> Date: 10/21/16 16:03 (GMT+01:00) To: C List <cnc-list@cnc-list.com> Cc: Josh Muckley <muckl...@gmail.com> Subject: Re: Stus-List Slip Choice I would say that coming bow in, prop-walk is irrelevant but come out any amount of walk will make things interesting to say the least. I back in and have prop-walk to port in reverse. Because of this, I love port side ties when filling/pumping tanks or coming into a tee pier for the night. When backing out of your slip the boat will prefer to turn one way or the other to get into the fairway. I think that will be your only consideration. If your prop-walk is to port as is the case on many boats then you'll probably want a slip on the right side of the fairway. This way when you back out, you'll back to port, down the fairway towards shore, and then put it in forward and drive out straight. Josh Muckley S/V Sea Hawk 1989 C 37+ Solomons, MD On Oct 21, 2016 8:24 AM, "robert via CnC-List" <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: I have had a boat on the same mooring for approx. 20 years and have enjoyed the ease (stress free) of coming and going from it, especially since I do mostly single handed sailing. However, I am considering getting a 'slip' at our marina for next season. There are several currently available, and with a 'bow in' docking (my preference) I have the choice to do it from both port or starboard docking. My boat has an 'offset prop shaft' which, I believe, accentuates the prop walk to port when starting in reverse. So my question is "Is there a preference for either a port or starboard docking (bow in) with my prop walk situation?" Reasons why? Or does it make any difference? Rob ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
I assumed the reason for the offset prop shaft on the 30-1 was so you could pull the prop or shaft without the rudder interfering. I haven't been backing much with my 30-1 this year because I'm at an end slip on a T-shaped dock. I do a U-turn to get in, tie to starboard, and drive straight out (except jogging around the POS houseboat in front of me on which I've scratched my hull once or twice). And y'all are right about choosing a slip with the prevailing wind pushing the boat toward the dock. One time this year the wind was pushing me away from the dock, and a guest of mine fell in trying to hold the boat to the dock. So anyway I haven't been noticing how much prop walk there is on my 30-1. At the start of the year I had half a "normal" double slip. I docked stern-to so my bow pulpit wouldn't be a hazard to people walking by. What I found it easiest to back my 30-1 (with tiller steering) by turning the rudder around backwards. That way the water flowed over the rudder the expected way, without the "sharp edge" upstream, and it felt much more controllable. Best Regards, Randy Stafford S/V Grenadine C 30-1 #7 Ken Caryl, CO - Original Message - From: "Gary Nylander via CnC-List" <cnc-list@cnc-list.com> To: "cnc-list" <cnc-list@cnc-list.com> Cc: "Gary Nylander" <gnylan...@atlanticbb.net> Sent: Saturday, October 22, 2016 9:48:40 AM Subject: Re: Stus-List Slip Choice, backing in The 30-1's have a shaft which is offset to port. I assume that was for one or two reasons. First, to minimize prop walk in forward? And for ease of getting the shaft out without dropping the (rather heavy) rudder. No fun to back the boat. I start way early and drive it backward slowly and then pull it out of gear and drive with the rudder. As was mentioned on an earlier post, it looks funny but is effective. My old slip was down a narrow channel with the slips on one side and a bulkhead on the other - on the bulkhead was a major pedestrian path toward our museum. After many back and forth near mishaps and a lot of tourist entertainment, I switched to the long backward drive down the channel. Gary -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Saturday, October 22, 2016 11:18 AM To: cnc-list@cnc-list.com Cc: Andrew Burton <a.burton.sai...@gmail.com> Subject: Re: Stus-List Slip Choice, backing in I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
I always understood that prop walk was a result of gyroscopic effect just like on an airplane with a centerline propeller. I understood that it was much less pronounced going forward because of the location of the propeller in relationship to the rest of the boat. In backing up, the rudder is less effective at controlling the yaw until sufficient water flow is established. When backing into a slip, we take the line from the piling that will hole the port bowline, take it to the port aft clear and back up hinging on the piling (slip on the port side of the boat). The line configuration keeps the stern from walking to starboard as my C tends to do. Once we are moving backward with sufficient water flow over the rudder, we move the line forward to the port side bow cleat and complete the docking as usual with boathook/friendly slip neighbors. Neil 1982 C FoxFire -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Gary Nylander via CnC-List Sent: Saturday, October 22, 2016 11:49 AM To: cnc-list@cnc-list.com Cc: Gary Nylander Subject: Re: Stus-List Slip Choice, backing in The 30-1's have a shaft which is offset to port. I assume that was for one or two reasons. First, to minimize prop walk in forward? And for ease of getting the shaft out without dropping the (rather heavy) rudder. No fun to back the boat. I start way early and drive it backward slowly and then pull it out of gear and drive with the rudder. As was mentioned on an earlier post, it looks funny but is effective. My old slip was down a narrow channel with the slips on one side and a bulkhead on the other - on the bulkhead was a major pedestrian path toward our museum. After many back and forth near mishaps and a lot of tourist entertainment, I switched to the long backward drive down the channel. Gary -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Saturday, October 22, 2016 11:18 AM To: cnc-list@cnc-list.com Cc: Andrew Burton <a.burton.sai...@gmail.com> Subject: Re: Stus-List Slip Choice, backing in I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
The boat referred to in my earlier post was a Pearson 28, 1982. AFAIK, it had the original engine and transmission and an offset prop. Ideally you are correct, assuming the boat/prop/engine/transmission combo ended up with the prop rotation 'walk' making up for the offset. In my case, it was not for some reason and from a dead stop, engaging the engine in reverse delivered a strong force to either port or starboard--can't remember which. It acted like I was using a stern thruster! Once I gained some water flow over the rudder, I could compensate for this force--but I had to be moving at a few knots. And as long as I kept her moving with short burst of thrust, I could control her direction. OTOH, maneuvering in close quarters in reverse was impossible--thus my preference for stern to docking In reverse and subsequently bow out leaving any slip. Perhaps the term prop walk is incorrect--actually I should have called it prop offset. Charlie Nelson C 36 XL/kcb Water Phantom cenel...@aol.com -Original Message- From: Andrew Burton via CnC-List <cnc-list@cnc-list.com> To: cnc-list <cnc-list@cnc-list.com> Cc: Andrew Burton <a.burton.sai...@gmail.com> Sent: Sat, Oct 22, 2016 11:18 am Subject: Re: Stus-List Slip Choice, backing in I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
The 30-1's have a shaft which is offset to port. I assume that was for one or two reasons. First, to minimize prop walk in forward? And for ease of getting the shaft out without dropping the (rather heavy) rudder. No fun to back the boat. I start way early and drive it backward slowly and then pull it out of gear and drive with the rudder. As was mentioned on an earlier post, it looks funny but is effective. My old slip was down a narrow channel with the slips on one side and a bulkhead on the other - on the bulkhead was a major pedestrian path toward our museum. After many back and forth near mishaps and a lot of tourist entertainment, I switched to the long backward drive down the channel. Gary -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Saturday, October 22, 2016 11:18 AM To: cnc-list@cnc-list.com Cc: Andrew Burton <a.burton.sai...@gmail.com> Subject: Re: Stus-List Slip Choice, backing in I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
I'm a bit puzzled by the talk about prop walk and offset shafts. I've found that prop walk is pronounced when the shaft is on centerline, but when the shaft is offset, it is offset to minimize prop walk. i.e. If the prop pulls to port, then the shaft is offset to starboard cancelling the effects of the prop walk in reverse. At least, that's how it should be done. Obviously, others here are experiencing things differently, which I find surprising. Andy C 40 Peregrine Andrew Burton 61 W Narragansett Newport, RI USA02840 http://sites.google.com/site/andrewburtonyachtservices/ +401 965-5260 > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice, backing in
+1 for backing into a slip! I do it all the time facing aft but with the wheel behind me. It keeps me much closer to the 'action' as the stern glides in pretty much as Chuck describes below. I especially like the ability to stop her with a shift to forward and a burst of power--that is unlikely to happen as forcefully and as directly when you shift into reverse and do it. I did the same with my former boat whose offset prop contributed to tremendous walk to port in reverse. I just started my maneuvers earlier in open water and avoided using reverse at all in close quarters. If I failed on my first try with that boat, I repeated the process (returning to open water) to start over. I got a lot of laughs from some dock masters as they watched me come in in reverse from a quarter mile away--but when they saw me nail the slip with usually no assistance, they 'got it'. My current boat has a centered prop so the prop walk is minor but I still prefer to get going in reverse in open water. Charlie Nelson Water Phantom C 36 XL/kcb cenel...@aol.com -Original Message- From: Chuck S via CnC-List <cnc-list@cnc-list.com> To: cnc-list <cnc-list@cnc-list.com> Cc: Chuck S <cscheaf...@comcast.net> Sent: Fri, Oct 21, 2016 8:58 pm Subject: Re: Stus-List Slip Choice, backing in I'm lucky to have gotten a very good slip. It's a goofy slip no one else wanted, with the dock on an angle, the two rear piling are on an angle. There is a pair of bow piling, 30 feet out from the nearest rear one and another pair another 20 feet out. The previous boat was a 50 footer. Everyone backs in at my marina cause the finger docks are short and it's the only way on and off the boat. The piling spacing allows me to lay my boat against two piling most of the time. But the angled dock means I must lay my boat's stern on one piling. If I go in too far, the bow can swing past the forward piling and into my neighbor's boat, so I'm careful not to do that. I learned to back in effortlessly solo using short pulses of power. I'm sure others use this method. I approach the marina bow first with my engine at idle and shift to neutral and try to coast to a position where I line up the boat well out from the slip, like twoo boat lengths, and come to a full stop, Sometimes I use reverse to stop the boat, then I walk around in front of the wheel so I'm facing aft, the wheel and the direction of travel. Now I have a great view of the slip and key reference points; the rudder head and backstay mark my boat's centerline; the stern rails mark the sides of the boat. I center the wheel, marked with white tape, and give a short burst of power to start the boat moving backward. Once it's moving backward toward the slip, I shift to neutral and steer to keep the boat aiming always for the centerline of the slip. The engine is idling and I steer and operate the shifter only, into reverse to keep her moving slow. I find the bow follows the keel and the keel follows the rudder, and I come into my slip with the engine at idle, then shift to forward for a short burst to stop my boat so the stern quarter can rest against the rear piling and I can reach the landlubber line between pilings to grab my springline and tie it to a midship cleat. One more dockline and she's safely in the slip. Two lines are all that's needed if you get the right two. Then I grab the boat hook and fetch all the rest till I have 6 lines securing the boat. This method requires you to mark the wheel to center the rudder, and mark the docklines so the length is the same each time. I use red and green tape to mark the docklines, but a sharpie would work as well. Why back in? I used to bow in to the dock for privacy, but if the bow gets blown off the course, there is no way to check it without a bow thruster. You really have more control backing in. You're closer to the end of the boat as it approaches the dock and have easier judgement and better control of the engine and the bow is less suceptable to crosswinds this way. Chuck Resolute 1990 C 34R Broad Creek, Magothy River, Md On October 21, 2016 at 9:17 AM Michael Crombie via CnC-List <cnc-list@cnc-list.com> wrote: I single hand a lot and prefer the slip on my port. I come in bow first so I pull towards the slip when i go into reverse to stop the boat (as I'm returning to the slip.) It is a slight hassle departing, but i just give the stern a bit of a push off as I step aboard. I also made sure that i picked a slip that faces into the prevailing wind...this makes docking easier if you ever need to sail into your slip. I just turn into the slip and the wind stops me. I agree with a previous lister that you want to avoid slips with the prevailing wind pushing you off the slip. This situation causes the most problems at my marina, even for boats with lots of crew. Mike Atacama 33mkii Toronto Sent wirelessly f
Re: Stus-List Slip Choice, backing in
I'm lucky to have gotten a very good slip. It's a goofy slip no one else wanted, with the dock on an angle, the two rear piling are on an angle. There is a pair of bow piling, 30 feet out from the nearest rear one and another pair another 20 feet out. The previous boat was a 50 footer. Everyone backs in at my marina cause the finger docks are short and it's the only way on and off the boat. The piling spacing allows me to lay my boat against two piling most of the time. But the angled dock means I must lay my boat's stern on one piling. If I go in too far, the bow can swing past the forward piling and into my neighbor's boat, so I'm careful not to do that. I learned to back in effortlessly solo using short pulses of power. I'm sure others use this method. I approach the marina bow first with my engine at idle and shift to neutral and try to coast to a position where I line up the boat well out from the slip, like twoo boat lengths, and come to a full stop, Sometimes I use reverse to stop the boat, then I walk around in front of the wheel so I'm facing aft, the wheel and the direction of travel. Now I have a great view of the slip and key reference points; the rudder head and backstay mark my boat's centerline; the stern rails mark the sides of the boat. I center the wheel, marked with white tape, and give a short burst of power to start the boat moving backward. Once it's moving backward toward the slip, I shift to neutral and steer to keep the boat aiming always for the centerline of the slip. The engine is idling and I steer and operate the shifter only, into reverse to keep her moving slow. I find the bow follows the keel and the keel follows the rudder, and I come into my slip with the engine at idle, then shift to forward for a short burst to stop my boat so the stern quarter can rest against the rear piling and I can reach the landlubber line between pilings to grab my springline and tie it to a midship cleat. One more dockline and she's safely in the slip. Two lines are all that's needed if you get the right two. Then I grab the boat hook and fetch all the rest till I have 6 lines securing the boat. This method requires you to mark the wheel to center the rudder, and mark the docklines so the length is the same each time. I use red and green tape to mark the docklines, but a sharpie would work as well. Why back in? I used to bow in to the dock for privacy, but if the bow gets blown off the course, there is no way to check it without a bow thruster. You really have more control backing in. You're closer to the end of the boat as it approaches the dock and have easier judgement and better control of the engine and the bow is less suceptable to crosswinds this way. Chuck Resolute 1990 C 34R Broad Creek, Magothy River, Md > > On October 21, 2016 at 9:17 AM Michael Crombie via CnC-List >wrote: > > I single hand a lot and prefer the slip on my port. I come in bow first > so I pull towards the slip when i go into reverse to stop the boat (as I'm > returning to the slip.) It is a slight hassle departing, but i just give the > stern a bit of a push off as I step aboard. > > I also made sure that i picked a slip that faces into the prevailing > wind...this makes docking easier if you ever need to sail into your slip. I > just turn into the slip and the wind stops me. > > I agree with a previous lister that you want to avoid slips with the > prevailing wind pushing you off the slip. This situation causes the most > problems at my marina, even for boats with lots of crew. > > Mike > Atacama 33mkii > Toronto > Sent wirelessly from my BlackBerry device on the Bell network. > Envoyé sans fil par mon terminal mobile BlackBerry sur le réseau de Bell. > > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
I agree with the port tie, and would like to add. Prevailing wind is important. I had a slip that the wind blew me off, had major issues getting tied up in any thing over 10 kts of breeze. If you are lucky enough to have a slip with fingers on both sides then it doesn't matter. I single hand alot so this what I look for in a slip. Doug MountjoysvPegasusLF38 #4just west of Ballard, WA. -- Original message--From: robert via CnC-List Date: Fri, Oct 21, 2016 05:24To: cnc-list@cnc-list.com;Cc: robert;Subject:Stus-List Slip Choice I have had a boat on the same mooring for approx. 20 years and have enjoyed the ease (stress free) of coming and going from it, especially since I do mostly single handed sailing. However, I am considering getting a 'slip' at our marina for next season. There are several currently available, and with a 'bow in' docking (my preference) I have the choice to do it from both port or starboard docking.My boat has an 'offset prop shaft' which, I believe, accentuates the prop walk to port when starting in reverse.So my question is "Is there a preference for either a port or starboard docking (bow in) with my prop walk situation?" Reasons why? Or does it make any difference?Rob AbbottAZURAC 32 - 84Halifax, N.S.___This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurrayAll Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip choice
Try using a spring line when you back out. It takes all of the drama out of leaving a slip. I have a 30-foot length of floating line that I tie off to the starboard cleat at the stern of the boat. When I’m ready to leave, I route it around a cleat on the rear piling and then back to the cockpit, where I hold it loosely in one hand. As I back out, I put a little tension on the floating line as it runs out. This pulls the stern to starboard and the bow faces out in the correct direction for the channel. It has worked for years in all currents and winds, once you do it a couple of times and get a feel for it. A floating line means that you avoid the possibility of it wrapping around the prop. Reel it in at your leisure as you’re heading out. Jack Brennan Former C 25 Shanachie, 1974 Bristol 30 Tierra Verde, Fl. From: Peter Burford via CnC-List Sent: Friday, October 21, 2016 10:40 AM To: cnc-list@cnc-list.com Cc: Peter Burford Subject: Stus-List Slip choice Our C 29 also has the offset prop and the prop walk is pretty severe. We’re in a slip, with the dock on the port side. I’ve found the trick to overcoming the prop walk is to turn the wheel about a quarter-turn to starboard when backing out. If you do this before you put the boat in reverse, it backs out straight. Had plenty of amusing exits before figuring this out! Peter Burford C 29 “Imagine” Ithaca NY ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
I would say that coming bow in, prop-walk is irrelevant but come out any amount of walk will make things interesting to say the least. I back in and have prop-walk to port in reverse. Because of this, I love port side ties when filling/pumping tanks or coming into a tee pier for the night. When backing out of your slip the boat will prefer to turn one way or the other to get into the fairway. I think that will be your only consideration. If your prop-walk is to port as is the case on many boats then you'll probably want a slip on the right side of the fairway. This way when you back out, you'll back to port, down the fairway towards shore, and then put it in forward and drive out straight. Josh Muckley S/V Sea Hawk 1989 C 37+ Solomons, MD On Oct 21, 2016 8:24 AM, "robert via CnC-List"wrote: > I have had a boat on the same mooring for approx. 20 years and have > enjoyed the ease (stress free) of coming and going from it, especially > since I do mostly single handed sailing. However, I am considering getting > a 'slip' at our marina for next season. There are several currently > available, and with a 'bow in' docking (my preference) I have the choice to > do it from both port or starboard docking. > > My boat has an 'offset prop shaft' which, I believe, accentuates the prop > walk to port when starting in reverse. > > So my question is "Is there a preference for either a port or starboard > docking (bow in) with my prop walk situation?" Reasons why? Or does it > make any difference? > > Rob Abbott > AZURA > C 32 - 84 > Halifax, N.S. > > > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
Rob There is a vacant slip beside us. Either the next one or the one over on road side. The C 33-2 Colmonel spent some time there Spring 2015 with no issues Mike From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of robert via CnC-List Sent: Friday, October 21, 2016 10:13 AM To: cnc-list@cnc-list.com Cc: robert Subject: Stus-List Slip Choice A few of the available slips are in a rather confined area when backing out into the fairway..I am in a slip now that has no restrictions backing out but this slip belongs to a member who has hauled his boat..it is prime 'realistate' at our club but I don't expect to get one of these. Our marinas (slips) face north-south which is where most of the prevailing winds come from.in the Summer, we get more west winds than easterlies. If I had a crew member with me, this wouldn't be as much of an issue but most days I am alone. I have been coming and going from the slip I am in now alone for almost a month but there are no restrictions (narrow fairway, etc). I don't expect to get one of these slips. Rob Abbott AZURA C 32 - 84 Halifax, N.S. On 2016-10-21 9:41 AM, Dennis C. via CnC-List wrote: Shouldn't make any difference coming in. Will have affect leaving the slip. Are there any considerations when backing out into the fairway or marina? I'd look more at the prevailing wind and choose the side that is downwind most of the time. We had a temporary slip in Pensacola with a port side pier. The wind was almost always blowing us away from the pier. Pain in the butt to angle in and have crew leap off and secure the boat before the wind blew us into the neighbor's boat. Personally, my preference is a port side pier because I back in. Prop walk brings boat to the pier. Dennis C. Touche' 35-1 #83 Mandeville, LA On Fri, Oct 21, 2016 at 7:23 AM, robert via CnC-List> wrote: I have had a boat on the same mooring for approx. 20 years and have enjoyed the ease (stress free) of coming and going from it, especially since I do mostly single handed sailing. However, I am considering getting a 'slip' at our marina for next season. There are several currently available, and with a 'bow in' docking (my preference) I have the choice to do it from both port or starboard docking. My boat has an 'offset prop shaft' which, I believe, accentuates the prop walk to port when starting in reverse. So my question is "Is there a preference for either a port or starboard docking (bow in) with my prop walk situation?" Reasons why? Or does it make any difference? Rob Abbott AZURA C 32 - 84 Halifax, N.S. ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
I single hand a lot and prefer the slip on my port. I come in bow first so I pull towards the slip when i go into reverse to stop the boat (as I'm returning to the slip.) It is a slight hassle departing, but i just give the stern a bit of a push off as I step aboard. I also made sure that i picked a slip that faces into the prevailing wind...this makes docking easier if you ever need to sail into your slip. I just turn into the slip and the wind stops me. I agree with a previous lister that you want to avoid slips with the prevailing wind pushing you off the slip. This situation causes the most problems at my marina, even for boats with lots of crew. Mike Atacama 33mkii Toronto Sent wirelessly from my BlackBerry device on the Bell network. Envoyé sans fil par mon terminal mobile BlackBerry sur le réseau de Bell. ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
I second Dennis's advice on getting a slip with the dock downwind. A cross wind will swamp prop walk effects. I docked for many years in a slip in a river that was always cross current and usually cross winded. Pretty hairy getting in and out sometimes. Steve Thomas C MKIII Port Stanley, ON "Dennis C. via CnC-List"wrote: Shouldn't make any difference coming in. Will have affect leaving the slip. Are there any considerations when backing out into the fairway or marina? I'd look more at the prevailing wind and choose the side that is downwind most of the time. We had a temporary slip in Pensacola with a port side pier. The wind was almost always blowing us away from the pier. Pain in the butt to angle in and have crew leap off and secure the boat before the wind blew us into the neighbor's boat. Personally, my preference is a port side pier because I back in. Prop walk brings boat to the pier. Dennis C. Touche' 35-1 #83 Mandeville, LA On Fri, Oct 21, 2016 at 7:23 AM, robert via CnC-List wrote: > I have had a boat on the same mooring for approx. 20 years and have > enjoyed the ease (stress free) of coming and going from it, especially > since I do mostly single handed sailing. However, I am considering getting > a 'slip' at our marina for next season. There are several currently > available, and with a 'bow in' docking (my preference) I have the choice to > do it from both port or starboard docking. > > My boat has an 'offset prop shaft' which, I believe, accentuates the prop > walk to port when starting in reverse. > > So my question is "Is there a preference for either a port or starboard > docking (bow in) with my prop walk situation?" Reasons why? Or does it > make any difference? > > Rob Abbott > AZURA > C 32 - 84 > Halifax, N.S. > > > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
Shouldn't make any difference coming in. Will have affect leaving the slip. Are there any considerations when backing out into the fairway or marina? I'd look more at the prevailing wind and choose the side that is downwind most of the time. We had a temporary slip in Pensacola with a port side pier. The wind was almost always blowing us away from the pier. Pain in the butt to angle in and have crew leap off and secure the boat before the wind blew us into the neighbor's boat. Personally, my preference is a port side pier because I back in. Prop walk brings boat to the pier. Dennis C. Touche' 35-1 #83 Mandeville, LA On Fri, Oct 21, 2016 at 7:23 AM, robert via CnC-Listwrote: > I have had a boat on the same mooring for approx. 20 years and have > enjoyed the ease (stress free) of coming and going from it, especially > since I do mostly single handed sailing. However, I am considering getting > a 'slip' at our marina for next season. There are several currently > available, and with a 'bow in' docking (my preference) I have the choice to > do it from both port or starboard docking. > > My boat has an 'offset prop shaft' which, I believe, accentuates the prop > walk to port when starting in reverse. > > So my question is "Is there a preference for either a port or starboard > docking (bow in) with my prop walk situation?" Reasons why? Or does it > make any difference? > > Rob Abbott > AZURA > C 32 - 84 > Halifax, N.S. > > > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
Re: Stus-List Slip Choice
Hi Rob, If your prop walks to port as you apply reverse, you want to tie up port to. That way you can use prop walk to your advantage. You can approach the dock with a slight angle toward the dock, and with a small burst of reverse to stop the boat, the stern will move to port and snug up against the dock. When backing out of your slip you should give her a small burst of reverse and immediately shift to neutral. That will stop the prop walk and allow you to turn whichever direction you want (including straight). Gary S/V Kaylarah '90 C 37+ East Greenwich, RI, USA ~~~_/)~~ On Fri, Oct 21, 2016 at 8:23 AM, robert via CnC-Listwrote: > I have had a boat on the same mooring for approx. 20 years and have > enjoyed the ease (stress free) of coming and going from it, especially > since I do mostly single handed sailing. However, I am considering getting > a 'slip' at our marina for next season. There are several currently > available, and with a 'bow in' docking (my preference) I have the choice to > do it from both port or starboard docking. > > My boat has an 'offset prop shaft' which, I believe, accentuates the prop > walk to port when starting in reverse. > > So my question is "Is there a preference for either a port or starboard > docking (bow in) with my prop walk situation?" Reasons why? Or does it > make any difference? > > Rob Abbott > AZURA > C 32 - 84 > Halifax, N.S. > > > ___ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > ___ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!