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Sonofpincher

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Everything posted by Sonofpincher

  1. Trying to build the 25" Hunter! Got the article from the magazine, Tony's downloaded pictures - but- how do you get the elevator snakes in and out of the fuse top panel and lined up with the elevators BEFORE cutting the access hatch - and even after that? Perhaps I'm thick, or have missed some instruction?
  2. That's a lot of useful thoughts and examples - thanks. I love to experiment, so I will try a simplified model - no scale competition for me - with electric power, and the lifting tail if I can't get the balance in the "normal " place. Thanks, Forum!
  3. The classic Bleriot Channel crosser, is a tempting design to try, but displays all the problems of short nose CG problems best avoided in a model. BUT, many photos of the Bleriot taken in its day, seem to show a heavily undercambered tailplane? Did Bleriot use the lift from this to hold the tail up? Have modellers used this to solve a CG problem - or just lots of lead?
  4. Yes, watched that Gossamer pedal-powered flight also, and it did make me wonder if a tilting foreplane would use its lift to induce a turn. Started to build something simple this afternoon!
  5. Might try that Canard V-tail at the front idea - thanks
  6. Must have pressed the wrong button - didn't mean to repeat! Thanks MattyB for that link, there was some good stuff there. I'm going to start experimenting -- when the current project - VMC Sopwith Triplane rc conversion - is finished! Forums are always helpful.
  7. Sorry if I was not clear enough - I considered either a rudder mounted ON the Canard foreplane, with some careful arrangement of the control horns so that vertical movement of the Canard elevator didn't clash with rudder control OR perhaps a conventionally mounted rudder In front or just behind the Canard. Everything I've read about Canard designs showed a problem with yaw control because vertical rudder surfaces were often mounted on the main wingtips, or well back - so why shouldn't the rudder control be up the front? Someone flew a backwards flying Tomboy - so perhaps it does work - but I think his used ailerons?
  8. I like experimenting, and have a small polyhedral wing about ,30" span, and would like to try a Canard layout. Would a conventional rudder on the Canard foreplane arranged, of course to push left or right by the servo, turn the model without ailerons on the mainplane in the same way that a rudder/elevator setup does? Also, would a foreplane Canard turn if the whole assembly was able to tilt right or left, as well as up and down?
  9. Thanks, Jeff, only just come back on the Forum, to see your suggestion. The Foamy is a 45cm Pitts - moved all the servos around, and the ESC is built into the rx board, and would only respond to the channel 1 aileron stick. BUT, after short work and much thinking about the problem, I have moved three wires on the TX board and now have a 35meg Futaba tx which speaks Spektrum! This marks the end of my 35meg era, so goodbye to a small collection of receivers with long bits of wire trailing.
  10. Just successfully fitted Lemon DIY module to my 35mMhz Futaba T6EXAP transmitter. Idea was to bind to a DMS2/DSMX Rx which came with a Chinese foamy kit, and get into the Spectrum protocol. Module bound OK, BUT - the throttle channel and aileron channels obviously need re-asigning. Is there a reasonably simple way to do this? Anyone??
  11. Must try to follow that landing technique, Denis, as an infrequent flyer, I'm "rusty"every time! Any thoughts about my initial post on building in a high lift tip to the wing to combat tip stalling? I'd love to know if that Flite Test idea of the undercambered wingtip works. I'll have to build one to find out.
  12. If minimum cost is not the main goal, my effort was using the available ex-Keil-Kraft Ajax kit, which makes into a slow flying electric RC. In fact, I made a smaller span matching wing to make it a biplane, weighs just under 250g. Rubber free flight kits, & plans make good light park flyers.
  13. Fascinating stuff, all about gliders with brushed motors. I don't have much experience with gliders, but started with electric 25 years ago, in the Speed400 with MFA gearbox era. Now use brushless & lipos, BUT, still use small brushed geared GWS in twins and my Lancaster! I have a thrust test rig, and they give efficiencies close to brushless, and only need one ESC! I wish I could still get the GWS twin motor geared unit. I have to admit, four geared brushed motors do not sound much like 4 Merlin's!
  14. I generally do small, light, electric "own designs" and often come up against "tip-stalling". "Wash-out" is the usual cure, but I'm confused by some experts who suggest that a high lift section at the tip - the opposite of washout - is needed. I also see that the US site Flite Test offer a Spitfire with a folded wing section, but having the outer section of the underside sheet cut before the tip, which seems to result in a heavily undercambered tip, their reason given " to stop tip-stalls" So would a undercambered tip be more efficient than washout - which doesn't offer much lift during normal level flight?
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