[RCSE] ESL/BRASS first contest of season
We now have 21 people signed up for the BRASS/ESL contest April 20 21 So, if you were waiting to see if we would hit quota before registering, we have hit it already. Best get your hotel reservations in early. We will be allowing camping again this year. There are sinks and bathrooms and picnic shelters and grills. I need to know min of 3 weeks in advance if there will be any campers. There are 10 signed up for slope on Friday the 19th at Monticello (Brown's Mountain) there are still 10 slots open. -- BRASS 32 Mount View Dr. Afton, VA 22920 540 943-3356 Fax 540 943-4178
Re: [RCSE] Contests; why?
I fly gliders because they are challenging, and I fly in contests because that's the only way I can measure my own performance. I see the following reasons: A) If you regularly go on the contest circuit you make a number of friends that you normally only see at contests. B) Some people go to contests to win. The trouble is that if that's your motivation you get awfully frustrated if you don't win. I'm not good enough (yet) to win ESL contests in Expert class, and I'd have given up long ago if this were my motivation. C) Measuring your own performance. As the scorekeeper for the ESL I introduced an inprovement measure that is calculated each year. I do this for two reasons: One, it makes it possible to reward pilots for improving their performance. Two, it is a measure of individual performance. The neat thing is that the top fliers are the benchmark that individual performance/improvement is measured against, so they have tiny fluctuations. The major drawback is that it really highlights the effects of aging on the older pilots. Bottom line: There are better motivations for going to contests than winning. Anker - Original Message - From: Bill Swingle [EMAIL PROTECTED] To: RCSE Soaring (E-mail) [EMAIL PROTECTED] Sent: Wednesday, January 09, 2002 1:19 PM Subject: [RCSE] Contests; why? Could someone please explain something? Why do so many pilots need contests to fly? The are volumes of posts arguing about rules and formats. Then after an event guys argue about results and rules. Seems silly to me. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Which GPS?
Thanks, I have en e-trex and the altitude reslolution sucks using the satellites alone. A barometric alstitude would be nice. Thanks for clarifying this. .bc([EMAIL PROTECTED] http://www.widomaker.com/~conk Williamsburg, VA 23185 On Wed, 9 Jan 2002, John Roe wrote: I've had several requests for the size/shape/model of GPS unit that might be suitable for sending up in a model to record data. Probably the best one readily available for this, and one that is very popular with the full-scale crowd is the Garmin E-trex. There are a couple of versions, you want the one that has barometric as well as GPS altitude capture, I believe it's the Vista. The unit is about the size and shape of an 1800 series Nokia cell phone. Very useful in the car as well, or for boating, hiking or whatever... JR. John Roe Laguna Hills, Ca www.MartialArtsAcademy.org - Do You Yahoo!? Send FREE video emails in Yahoo! Mail. RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
RE: [RCSE] Production Runs
The Genesis full sale Flying wing was originally designed without a horozontal stabilizer and flew fine. In order to go into production it was neccessary to add a small stab, don't know if it was FAA or public perception, or both that caused the change. John Derstine Endless Mountain Models [EMAIL PROTECTED] http://www.scalesoaring.net/EMM/rand.htm -Original Message- From: tony estep [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 09, 2002 10:58 PM To: [EMAIL PROTECTED] Subject: RE: [RCSE] Production Runs B^2 would love to see a full-size tailless sailplane, as would many others, but anybody who manufactured one would be setting him(her)self up for a lifetime of lawsuits and no upside... RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
[RCSE] Seeking old RCSD articles
I am currently looking for copies of past articles that appeared in the RCSoaring Digest. The copies that I have access to only go back to around 1996. I am seeking copies of the following articles: December 90, "Magic design shwon in 3 views and discussed..." November 91, "Weston Magic disvussed by a happy customer..." November 94, "V tail mounting problems for the Maigc..." I am willing to reimburse shipping charges and photocopy charges. Please reply to [EMAIL PROTECTED]Get your FREE download of MSN Explorer at http://explorer.msn.com. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Contests; why?
I've wondered the same thing many times. And I've heard and used all of the familiar explanations (with which I agree). But I think that the real bottom line is that people contest because interesting things happen in contests. Its the same reason people watch sporting events and to some extent even sitcoms (ugh). At a contest interesting things happen within a formal context that makes them very memorable. Just sport flying interesting things happen but they often aren't in a context that makes them particularly memorable. They just happen but have no meaning in any larger context. If someone has a great flight while sport flying it doesn't have any other impact than it was just a great flight. It didn't enhance his standing in a points total. It didn't cause someone else to have to try harder. It didn't catapult the pilot into a position of higher peer recognition-ie he wins or places in a contest. It just kind of happened. Contests, no matter where you place, provide a context for fun and interesting things to happen. Maybe you like to rib your best friend about how you beat him in the contest. Or perhaps you like to track your progress as your ability to score a high percentage of the winners score. Or perhaps you want to score more landing points than even the winning pilot. Its all interesting stuff. I'm always pleased to congratulate a sport flyer when he is excited about a 20 minute flight. I won't harsh his mellow and it is a significant feat. But its also mostly about the conditions. Sometimes 20 minute flights are much easier than other times. A contest levels the conditions because, to a large extent, everyone is flying in the same conditions. Its much more interesting that way. Some guys focus on the winning aspect of contesting and fail to recognize that its the interesting things that happen in the contest that is the real fun. Of course winning really snaps a lot of interesting things into focus! and makes savoring the memories much more enjoyable. Rick Orlando At 07:03 PM 1/9/02 -0700, Tom Hoopes wrote: At 10:19 AM 1/9/02 -0800, Bill Swingle wrote: Could someone please explain something? Why do so many pilots need contests to fly? The are volumes of posts arguing about rules and formats. Then after an event guys argue about results and rules. Seems silly to me. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Contests; why?
On Wed, 9 Jan 2002, Ron Scharck wrote: Great article, Tom. The fact of the matter is that whenever that plane leaves our hands, regardless of method, it is always a contest...if nothing else, between the pilot and Mother Nature. It's not a contest between the pilot and mother nature any more than a surfer or a sailor is in contest with mother nature. For me, it's a matter of finding a dialogue, finding a way of working with nature. In my opinion, Nature is the kind of opponent you don't want to tangle with. I think it comes down to the nature of the individual: some people are inspired toward greatness by competition with others and some are inspired by competition with themselves. It's inspiring for me to watch videos of other peoples' competitions and see how great they fly. But, even if I had a shot at placing in a contest, I really don't think I'd compete. I was thinking about this yesterday and I realized that I'd be excited if someone was competing with one of my planes, though. -J Ron Scharck San Diego, CA - Original Message - From: Tom Hoopes [EMAIL PROTECTED] To: [EMAIL PROTECTED]; RCSE Soaring (E-mail) [EMAIL PROTECTED] Sent: Wednesday, January 09, 2002 6:03 PM Subject: Re: [RCSE] Contests; why? At 10:19 AM 1/9/02 -0800, Bill Swingle wrote: Could someone please explain something? Why do so many pilots need contests to fly? The are volumes of posts arguing about rules and formats. Then after an event guys argue about results and rules. Seems silly to me. Bill Swingle [EMAIL PROTECTED] Janesville, CA Hi Bill, I don't know about others' motivation but I can explain why I like contesting. I was present when our local club was formed back in 1979. I loved to fly, but had no interest in contests. School, family, and business took all of my time for the next ten years and flying fell by the wayside. In '89 my wife told me that I was becoming a workaholic and needed a hobby. I pulled out my trusty Oly II that had been in its box for almost ten years. I showed up at the slope, tossed the Oly out and everything came back to me in a quick rush, just like riding a bike. After an hour of smiles, I was surprised to have several pilots come over and introduce themselves. They saw a potential new club member and most likely another contestant, so they started the squeeze to get me out to an upcoming contest. I told them that I didn't like contests and was kind of a lone wolf or some load of crap to get them to leave me alone. In the next couple of weeks I began receiving phone calls and further invitations to participate in another thermal contest. I could see that lone wolf thing wasn't working, nor was anything else to get them to leave me alone, so I came to the contest. The contest was a simple four round precision duration thermal format, yet I was incredibly nervous and before long, I was sweating like a rat under hot lights. I was sure that I had made a huge mistake. I got through the first round without crashing, hitting someone or something, and not looking like an idiot. By the end of the contest, I was actually having a ton of fun and began to realize that the only person that considered me to be an idiot was myself. I drove home with a smile and replayed in my mind a low level save and decent landing that I made during the contest. In a fun fly environment, I would not have attempted the low level save and the landing would have been a run of the mill slide somewhere away from the point the I had originally intended. The contest environment helped me to improve my flying skills dramatically and I was no longer a nervous wreak. The first time that I attended a really large contest (Visalia) in 1991, I was truely inspired by some of the superb flying that I witnessed and could appreciate. I've learned alot of skills, techniques, styles through contesting and have had alot of fun doing so. Of course the social aspect of the contest can be as much fun as the contest itsself. Where else have you seen a fun-o-meter in action or a vasectomy in a raffle, h? Along the path, I've flown a plane 3,000' above me while sitting in a truck bed doing 90 mph, marvelled that a composite toy remains in one piece while two linemen type brutes try to pull it apart on some fishing line, or watching a 7 ounce plane slowly circle in lift so light that only mother nature and I are aware of it. Fun with a purpose. I know why I love contest, just because Tom Hoopes - ([EMAIL PROTECTED]) -- Hoopes Designs - Taking the hassle out of wiring harnesses RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL
Re: [RCSE] Kevlar cutting
This is speculation, cause I've never tried it, but perhaps a rotary cutter would work, especially with the masking tape that has already been suggested. What is a rotary cutter? It looks like a high-tech pizza cutting wheel and you use it pretty much the same way. The usual application is cutting fabric for clothes, quilts and such. Mostly they seem to be useful for straight cuts and moderate curves. Might be difficult for tighter curves or inside corners. A rotary cutter is always used on a cutting mat which is a plastic sheet with a moderately hard surface. The cutter wheel cuts through the fabric, and slightly into the pad. Cutting slightly into the pad insures that the fabric fibers are cut through, but the pad protects your table top and provides a consistant surface for the rotary cutter that does not damage the cutting wheel. You can buy the rotary cutter, replacement blades and cutting pad at a fabric store. Ask when they will be on sale, cause the list prices seem a bit high to me. Mark, In order to be successful in cutting kevlar with a rotary cutter, the 'moderately hard cutting surface' must be extremely hard. Using a moderately hard surface such as a 'self-healing' matt to cut kevlar only results in the kevlar fibers being forced into the cutting matt and not being cut. By the time you have a hard enough surface, the rotary cutter would rapidly be destroyed and it is highly unlikely that the kevlar would be cut. The best way to cut kevlar is with a shears that has a serated edge. Anything else will yield a less than satisfactory result. I believe that both Aerospace Composites and Composite Structures sells them. Regards, Bob Johnson Fond du Lac, WI RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
RE: [RCSE] Contests; why?
I was nervous to fly in my first contest, was just to the point where landing didn't necessarily involve repairing - one of the fliers helping me (thanks, Dave!) told me that they were just an excuse to fly... I still think that holds true, for me at least. Even the more 'serious' fliers seem to be there for the fun - the only intense times I witness are people staring down the tape on landing I hope that doesn't mean I'm missing something ; ) brent RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
[RCSE] Re : Kerf Foam Question
Date: Wed, 9 Jan 2002 23:04:33 -0800
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED]
Question, Assuming a basic melt speed, what kind of kerf do people use to
cut the templates to provide an accurate core, assuming the thickness of the
eventual FG covering will be very small, like for a HLG. For those using
programs, how do the programs treat the expected kerf?
Hi, Chris.
Assuming you have the stomach to carry on the reading of my bad digestion
thoughts about the kerf, have a look at my site (
http://space.tin.it/sport/ocapofer http://space.tin.it/sport/ocapofer ) in
the Article section.
Ciao from Italy (and good digestion ! 8-
Tullio
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[RCSE] zagi upgrade.
hey all, I've been seeing better SP400 pusher prop setups lately, any ideas where to get? The one I liked best had a regular looking zagi prop reamed out, held in place with a nut. Anyone, class? Brent RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
RE: [RCSE] Kevlar cutting
Title: RE: [RCSE] Kevlar cutting I originally tried cutting Kevlar with the masking tape trick, but found that removing the masking tape from the cut piece would fray the edges producing a 'not clean' finished piece. A much better way to cut Kevlar is to take an old pair of scissors and file a pretty flat angle into them. Normally, scissors have a rather steep angle on each blade. This is great for cutting most materials, but really causes a problem when cutting Kevlar. The thing to do is to file each blade of the scissors almost flat. Don't worry about getting them smooth, as a rougher surface seems to help. The flatter angle of the scissors will now 'grip' and hold the Kevlar while it is being cut. Can't take credit for this one, got the idea from Denny Maize at PoleCat Aero Plane Works. Jeff Winder Cincinnati, OH -Original Message- From: Bob Johnson [SMTP:[EMAIL PROTECTED]] Sent: Thursday, January 10, 2002 9:41 AM To: Mark D. Holm; [EMAIL PROTECTED] Subject: Re: [RCSE] Kevlar cutting This is speculation, cause I've never tried it, but perhaps a rotary cutter would work, especially with the masking tape that has already been suggested. What is a rotary cutter? It looks like a high-tech pizza cutting wheel and you use it pretty much the same way. The usual application is cutting fabric for clothes, quilts and such. Mostly they seem to be useful for straight cuts and moderate curves. Might be difficult for tighter curves or inside corners. A rotary cutter is always used on a cutting mat which is a plastic sheet with a moderately hard surface. The cutter wheel cuts through the fabric, and slightly into the pad. Cutting slightly into the pad insures that the fabric fibers are cut through, but the pad protects your table top and provides a consistant surface for the rotary cutter that does not damage the cutting wheel. You can buy the rotary cutter, replacement blades and cutting pad at a fabric store. Ask when they will be on sale, cause the list prices seem a bit high to me. Mark, In order to be successful in cutting kevlar with a rotary cutter, the 'moderately hard cutting surface' must be extremely hard. Using a moderately hard surface such as a 'self-healing' matt to cut kevlar only results in the kevlar fibers being forced into the cutting matt and not being cut. By the time you have a hard enough surface, the rotary cutter would rapidly be destroyed and it is highly unlikely that the kevlar would be cut. The best way to cut kevlar is with a shears that has a serated edge. Anything else will yield a less than satisfactory result. I believe that both Aerospace Composites and Composite Structures sells them. Regards, Bob Johnson Fond du Lac, WI RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Hard data on L/D values for models
--- Anker Berg-Sonne [EMAIL PROTECTED] wrote: Flying at max L/D is great when looking for thermals in relatively still air. However, where flying at best L/D is really, really important is when you are trying to return to the field from downwind in a stiff breeze, or a howling hurricane. The problem is that flying at max L/D isn't optimal. Some higher speed is. Right. For the math of this, see http://www.mvsaclub.com/articles/penetrate.htm As you feed in downtrim, airspeed, ground speed, and sinking speed all increase. The sinking speed is airspeed / (L/D), and the ground speed is airspeed - wind velocity. An easy way to figure out how far upwind you can fly from a given altitude at a given speed is to calculate the associated sinking speed, then figure out how long the plane can stay in the air; once you know that, you can get how far the plane can fly over the ground by multiplying time in the air * ground speed. To do this, you need the plane's polar. As Anker points out, best penetration typically occurs at a lower CL (i.e. at a faster speed) than does max L/D. For my simulated 3M plane loaded to 13 oz., best penetration comes at a CL of 0.5 if the wind is 10 mph, 0.4 if it's 15 mph, and 0.3 if it's 20 mph. __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Hard data on L/D values for models
Whenever a discussion of optimum flight strategy in head winds and sink comes up, I go back to an excellent web site that graphically ties all of this to drag polars: http://home.att.net/~jdburch/polar.htm In a head wind, you do not want to fly at the max L/D, as illustrated nicely on this web site. Dick I can add some credibility to these numbers. Flying at max L/D is great when looking for thermals in relatively still air. However, where flying at best L/D is really, really important is when you are trying to return to the field from downwind in a stiff breeze, or a howling hurricane. The problem is that flying at max L/D isn't optimal. Some higher speed is. To comprehend this, it is useful to imagine trying to get back in a breeze which is exactly your best L/D speed, It isn't difficult to understand that you will have zero ground speed and never get home. So best L/D is some unknown speed that is higher than max L/D. What that speed is, is totally dependent on the specific wind speed, and is one of the most difficult things to learn. At the F3J selection trials a couple of years ago I was most impressed by the ability of the top pilots ability to come back home from way, way downwind in a wind that was really pushing them back. If I had a really good feeling for that I would be able to stay in lift much longer than I currently dare. Anker -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Dr. Richard C. WilliamsonPhone: 781-981-7857 Room C-317 FAX:781-981-0122 Lincoln Laboratory Email: [EMAIL PROTECTED] Massachusetts Institute of Technology 244 Wood Street Lexington, MA 02420-9108 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Hard data on L/D values for models
--- Paul Breed [EMAIL PROTECTED] wrote: Cool data, what does your simulation predict for minimum sink for these aircraft? For my hypothetical 3M plane, minimum sink at 10 oz./sq ft is 1.2 ft/sec. That's at an airspeed of about 17 - 18 mph. __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
[RCSE] Contests - why?
It's no different from 25 cent skins when you're playing golf with your buddies. It adds purpose to your flying - as much or as little as you want to make it. It can't hurt to try to do your best in anything. Contests make you pay more attention to detail in trimming your plane and make you work on flying skills, neither of which is a bad thing. And you get some memorable moments, for better or worse. I've got some wood and a Nats trophy from days when things went right, and some rueful stories to tell from the (many more) days when they didn't. I always urge our new club members to come out and try contest flying. Some do, a larger number don't. But for those who do, I think it adds another dimension to a hobby that offers so much richness of experience. __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] RE: Donation to US F3J Team
Hell IT was The fastest and ugliest flight I have ever seen from my ASS YES I was Pulling Mark B From: James V. Bacus [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [RCSE] RE: Donation to US F3J Team Date: Wed, 09 Jan 2002 23:22:53 -0600 At 11:03 PM 1/9/2002, Chris Laura wrote: Hey Mark, For those of us that weren't at the team selections and didn't get much info about how they went, fill us in about your record! Mark Taylor (record holder- 2.7 second F3J flight with 55 landing points.) 8-)) big seg Imagine a two man tow fully tensioned and then an instant pop off that went right over his head and landed behind the pilots right on his tape. One big swooping fast plant. Very fast in the heat of F3J, wild... I witnessed it from a few lanes over, kinda cool heh heh heh Jim Downers Grove, IL Member of the Chicago SOAR club, AMA 592537LSF 7560 Level III ICQ 6997780R/C Soaring Page at www.jimbacus.net RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] _ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Hard data on L/D values for models
Some good posts on this thread. As pointed out by Anker, flying at the air speed that produces the best L/D for a stationary airmass will by definition cover the most ground (horizontal movement) for the altitude lost (vertical movement). We as pilots are often interested in being able to travel as far as possible over the ground when the airmass IS moving, either horizontally (wind) or vertically (sink). Usually if the airmass is rising (lift) we are content to stay in that area of the airmass, and will even circle ;-) The rule of thumb is to "speed up" in sink, or into the wind, and slow down in lift. But how much? And which airfoil/planform/airframe configurations can still maintain a high L/D a a wider range of(higher and lower) airspeeds? This information would be wonderful to have. If drawn out graphically as a polar it would show for each aircraft design what to expect in the way the plane could be flown.It would alsoshow to all on paperwhy some airfoils are notorious for being "fussy" about the speed they are flown at (sharply peaked polar) or not fussy (flat polar). If plotted with minimin sink speed and stall speed, and maybe even stall speed in landing configuration we could suddenly be able to know much about a design just by reading the (accurate ;-) performance data. Except for launch...hmmm The basic desire would be a plane that could achieve it's best L/D even at very high (air)speed, allowing it to effortlessly penetrate even very high winds, at low wing-loadings. This low wing-loading plane with high speed L/D cruise then would still have a low sinkrate at low speed, allowing tight thermal turns in weak lift while still climbing and be able to slow way down to land. This is pretty much exactly what most designs have been striving for, with compromises being made to optimize for regional or personal preferences. In the USA we have the popular "west coast" planes, i.e. the Addiction, which gives up range in wind for better climb and especially slower landing speeds, as in California we "always make our times anyway" and many contests are decided...literally...by a few inches difference in landing scores over a whole contest. In Europe they have wind, lots of it, and low clouds and often poor lift. They prefer planes that perhaps don't land as accurately (they measure by the meter not the inch anyway) but can hang in the wind, then get back to the field after taking the one thermal way downwind to make the typically 10 minutes or longer European thermal task time. We fly (relatively) much shorter tasks with much higher precision landings, in different weather conditions. Understanding and quantifying theseperformance and stylistic differences would seem to me to make a lot of sellers and purchasers of cool toys happier. There would be less of the suprise and dissapointment that I hear about when a model that is supposed to be "the best" doesn't do what the owner wants it to. Usuallythrough no fault of it's own. This info would also make ballasting less of a "black art," atleast some of the time anyways, and allow people to buy a range of planes to suit the conditions they expect to fly in. Plus lots more to debate on RCSE. I think the technology is just about here now... JR John RoeLaguna Hills, Ca www.MartialArtsAcademy.org Do You Yahoo!? Send FREE video emails in Yahoo! Mail.
[RCSE] Re: Contests; why?
Contests are the engines that drive the development of the planes we all enjoy for each our own reasons. Contest pilots push out the envelope of performance. Contest pilots want answers to questions that most pilots would never ask, but all builders and pilots get to benefit and extend their enjoyment of the hobby because of these answers. Mostly pilots fly contests because of the wealth and adoration of ourwives and women everywhere who find us irresistable in our shorts and floppy hats with astopwatch around our neck. JR PS. the REAL secret is the bare feet...John RoeLaguna Hills, Ca www.MartialArtsAcademy.org Do You Yahoo!? Send FREE video emails in Yahoo! Mail.
RE: [RCSE] tip stall tape
The tape should go on the top. The tape is intended to turbulate the air flow's boundary layer. It is intended to delay stall because the turbulated flow tends to remain better attached to upper surface. In addition to a saw tooth shape, a simple linear arrangement is also used. The linear style is called a trip strip. The saw tooth is called a vortex generator. It's my understanding that both are similar in what they are intended to do. But, one may be more effective than the other. It's my opinion that the tapes are a band-aide measure. They can be helpful but often there is a better way. Plus, using them incurs a drag penalty. I'm sorry but I'm not familiar with what you're called a Gurney flap. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Re: Contests; why?
Bummer, If that's the secret I'll never make it! I hate being tickled under my feet. :-( But thanks for letting us know! Anker - Original Message - From: John Roe To: Rick Eckel ; Tom Hoopes ; [EMAIL PROTECTED] ; RCSE Soaring (E-mail) Sent: Thursday, January 10, 2002 2:03 PM Subject: [RCSE] Re: Contests; why? Contests are the engines that drive the development of the planes we all enjoy for each our own reasons. Contest pilots push out the envelope of performance. Contest pilots want answers to questions that most pilots would never ask, but all builders and pilots get to benefit and extend their enjoyment of the hobby because of these answers. Mostly pilots fly contests because of the wealth and adoration of ourwives and women everywhere who find us irresistable in our shorts and floppy hats with astopwatch around our neck. JR PS. the REAL secret is the bare feet... John RoeLaguna Hills, Ca www.MartialArtsAcademy.org Do You Yahoo!?Send FREE video emails in Yahoo! Mail.
Re: [RCSE] Re: Contests; why?
Dudes Attending contests has simply become a matter of economics for me. Here in the ESL we don't get the 200 person contests like they do on the west coast so guys like Anker and Tom and Phil have taken to giving me Show money just to add to the list of people who's ass they have kicked on a given day:-) Hell, on a good weekend I can cover travel expenses and make enough besides to go out Saturday night with one of those adoring Glider Groupies that are so predominant in our sport. Reminds me, Guys, it's time to negotiate the 2002 contract:-) Denny Maize Polecat Aeroworks (717) 789-0146 [EMAIL PROTECTED] A HREF=http://www.polecataero.com;http://www.polecataero.com/A RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Contests; why?
At a contest interesting things happen within a formal context that makes them very memorable. Just sport flying interesting things happen but they often aren't in a context that makes them particularly memorable Rick has a good point. My first contest, first flight, I nailed the landing, absolutely perfect. Second flight, an almost perfect landing. I was totally jazzed!! Third flight a mid-air, totalled the airplane, I was bummed out! But I sure as hell remembered those three flights. Fred Guilfoyle My stuff: http://www.evergo.net/~guil/buildflyindex.htm __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Re: Contests; why?
Hey barefoot, come and use that technique in our 32nd annual Snow-Fly on 16FE02 here in Michigan. :). Jack Iafret"Keeper of the Nostalgia Rules" - Original Message - From: John Roe To: Rick Eckel ; Tom Hoopes ; [EMAIL PROTECTED] ; RCSE Soaring (E-mail) Sent: Thursday, January 10, 2002 2:03 PM Subject: [RCSE] Re: Contests; why? Contests are the engines that drive the development of the planes we all enjoy for each our own reasons. Contest pilots push out the envelope of performance. Contest pilots want answers to questions that most pilots would never ask, but all builders and pilots get to benefit and extend their enjoyment of the hobby because of these answers. Mostly pilots fly contests because of the wealth and adoration of ourwives and women everywhere who find us irresistable in our shorts and floppy hats with astopwatch around our neck. JR PS. the REAL secret is the bare feet... John RoeLaguna Hills, Ca www.MartialArtsAcademy.org Do You Yahoo!?Send FREE video emails in Yahoo! Mail.
Re: [RCSE] Hard data on L/D values for models
Dick Williamson wrote: Whenever a discussion of optimum flight strategy in head winds and sink comes up, I go back to an excellent web site that graphically ties all of this to drag polars: http://home.att.net/~jdburch/polar.htm In a head wind, you do not want to fly at the max L/D, as illustrated nicely on this web site. Dick Thanks Dick: An excellent practical example for those of us who fly by intuition. Now if there was something similar to explain the so called downwind turn! -- John O'Sullivan Nova Scotia Wind and Wave Models http://www.windandwavemodels.com/index.html RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Hard data on L/D values for models
[EMAIL PROTECTED] wrote: In a message dated 1/10/2002 2:46:41 PM Eastern Standard Time, [EMAIL PROTECTED] writes: Now if there was something similar to explain the so called downwind turn! Hey John I did a lot of research on that with my canard skeeter F3J plane. Has something to do with which way the water rotates in your toilet:-) Denny Maize Tried the same thing with my Whipper Whiz but had trouble deciding whether to whip or whiz! Tried DS on the lee side of the waves in the toilet but it a was foiled by coriolis rotation. Could not use it for F3J as it came without CG or tow hook instructions. Don't forget to file your Whipper Whiz contest results with me. Contest ends 15 January. Total of three best flights in a single day count. If you want plans of stretched Discus launched version email me and I'll send on a pdf plan. Details at http://www.windandwavemodels.com/WhipperWhiz.html Kevin Moseley of England is current leader. -- John O'Sullivan Nova Scotia Wind and Wave Models http://www.windandwavemodels.com/index.html RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
[RCSE] Re:2D CAD Programs for Macintosh
In a message dated 1/8/02 5:14:44 AM, [EMAIL PROTECTED] writes: Any 2D CAD shareware programs for the Mac? Message-ID: [EMAIL PROTECTED] I got TurboCAD for my PC, but wonder if there is something similar for the Apple line of computers. TIA for any help, Keith Keith, I use DenebaCad for the mac from Deneba software (find them on the web) Great program, but it is definately not shareware . I did use a program called Cadintosh for a while that was share or freeware (works, but limited tools). I found it through an interesting web site named Cadtopia.com they are worth checking out anyway. DenebaCad is definately the best I have found for the Mac. I exchange files with friends that use Master Cam/Autocad for machine control all the time and have zero problems. Good luck on your search. Walt Dimick I.R.F. Machine Works, Inc. * Have you checked out I.R.F. Machine Works' precision and heavy duty accessorie s for rotary flap and aileron drivers? The components for this totally clean and hidden system for moving control surfaces are now available premanufactured. Get the scoop for your next building project at our RDS web site: http://www.irfmachineworks.com/rds **I.R.F. also builds the Little Big Winch, a complete, personal launching system for RC sailplanes up to 3.5 meters. http://www.irfmachineworks.com/lbwinch * RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Cobra V2
At 03:20 PM 1/10/2002, Jack Strother wrote: Just thought you might like to know. Capn', I know the Cobra kits have been fairly complete in the past, does the new V2 come complete with a wool sock? 8-) Jim Downers Grove, IL Member of the Chicago SOAR club, AMA 592537LSF 7560 Level III ICQ 6997780R/C Soaring Page at www.jimbacus.net RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] Any wind anywhere
Come join us...we have lots... Dieter @ ShredAir wrote: Watching the news, the wind appears to be in Afganistan, but the LZs suck... Dieter RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] -- *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~* Simon Van Leeuwen, Calgary, Alberta RADIUS SYSTEMS Cogito-Ergo-Zoom IAC25233*MAAC12835*IMAC1756*LSF5953*IMAA20209 *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~* RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
Re: [RCSE] What I found out about tooling costs.
With some work you could probably make a wing plug and then lay up an acceptable set of wing molds. The costs would only be comparatively low with more labor on your part. You can also do a good job with bagged wings. Mike - Original Message - From: bcourtice [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, January 10, 2002 9:52 PM Subject: [RCSE] What I found out about tooling costs. Several people replied to my inquiry off-line, and several others have also asked me what I may have found out. The reason I asked the question to start with is that I like to design and fly PSS warbirds, and I have often thought it would be very cool if there were some high quality all composite kits available. I imagine the market is probably not that large. It may even be doubtful that a quality product could be realized with any reasonable hope of making a couple of bucks or at least breaking even on the investment. Still, it sure would be nice to be able to buy a slope warbird with the same level of quality and prefabrication that we are now finding in the conventional moldie market. What I found out is that CNC molds are VERY expensive! One gentleman is working on tooling a design and was quoted $4,000 per wing. Tome Copp of f3x.com said he could probably get the job done for about $5,000. Several others estimated prices in the $20,000 plus range!! Anyway, at this point I am not feeling very inclined to jump right in! I am actually pretty amazed that we have as many molded airplanes to choose from as we do, considering how expensive it is for manufacturers to market a product of this type. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.313 / Virus Database: 174 - Release Date: 1/2/2002 RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED]
