FWIW, I finally bit the bullet last year and went to a geared 2-blade Flex-o-fold. The power (forward and reverse) seems to be about the same. I suspect that when it’s folded, the drag is comparable to the old 2-blade Martec folding prop when we remembered to align it. Significant differences are: 1) we no longer need to remember to align the prop; and 2) if (when) we forget, we don’t run the risk of the increased drag of one blade hanging down; and 3) I no longer experience the “boat shake” when I put the engine in gear and only one blade opens up. Anyone with an older Martec knows what I’m talking about.
Overall, I’m pleased with this upgrade. From: Dave Godwin via CnC-List Sent: Friday, February 16, 2018 7:08 AM To: Chuck Gilchrest via CnC-List Cc: Dave Godwin Subject: Re: Stus-List Help with folding prop insights? Bruce, For reasons that have been lost in distant memory I have a new pin for an original Martec, non-geared, two-blade elliptical. Don’t know the size or if it will fit your model but if I can find it (that’s the hard part…) it’s yours. Because I sent ours back to Martec for refurbishment years ago and they told me that it non-repairable in the future (must be on its 3rd life…) I will be replacing it when my “hobby” is ready to go back into the water. I am in full alignment with Dennis. I love the two-blade folding prop. Forward gave me all the push I needed and once you figure out the necessity of getting the blades fully opened in reverse it was easy to back down. I plan on replacing it with something similar. Best, Dave Godwin 1982 C&C 37 - Ronin Reedville - Chesapeake Bay Ronin’s Overdue Refit On Feb 15, 2018, at 9:27 PM, Bruce via CnC-List <cnc-list@cnc-list.com> wrote: Well, thankfully (or not) I found the pin, which is a good thing, except that it was clearly broken during the removal process. At least I have something to measure. The pin is really pretty tight in one blade, but a little sloppy on the other, so yes, it will need to be refurbished. Interestingly, I can get to my prop shaft very easily by removing an inspection panel in the cabin sole, so aligning the prop will be no big deal at all. How do you feel about vibration (presumably the refurbishment would take care of a lot of the potential problems) and forward power? Kindest Regards, Bruce C. Whitmore 1994 C&C 37/40+, “Astralis” Madeira Beach, FL 847.404.5092 bwhitm...@sbcglobal.net From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Dennis C. via CnC-List Sent: Thursday, February 15, 2018 9:02 PM To: CnClist <cnc-list@cnc-list.com> Cc: Dennis C. <capt...@gmail.com> Subject: Re: Stus-List Help with folding prop insights? Bruce, You're not going to get a lot of positive comments about Martec props on this list. You'll get a lot of suggestions about this prop and that prop. Having said that, I have a Martec Elliptical on Touche'. While it might not be everyone's favorite, I don't have any problems with it. Sure, I have to drop down into a cockpit locker to align it before a race or a long sail but that's the nature of non-geared folding props. As for rev erse, I back into my home slip without any issue at all. Just need a bit of practice and anticipation and you'll be good to go (or back up). I've dealt with Martec a couple times and found them to be fairly responsive. They should be able to send you whatever parts you need. One thing to be aware of with Martec props. They have 3 "lives". With use, the pin holes in the blades will begin to wallow out and the blades will start to become loose on the pin. The fix is to return the prop to Martec where they will, for a price, recondition it. Part of the reconditioning process is to re-bore the hub and blades for a larger pin. You can only do this twice. Hence the 3 lives, the original life plus 2 rebuilds. So, before you send the prop to Martec for reconditioning, measure the pin diameter and call them to see how many lives it has left. Dennis C. Touche' 35-1 #83 Mandeville, LA On Thu, Feb 15, 2018 at 7:28 PM, Bruce via CnC-List <cnc-list@cnc-list.com> wrote: -------------------------------------------------------------------------------- _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
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