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Paul Bray

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  1. Hi guys and Gals, just wanted to let you know about the latest mod which I just did to my aging but 100% reliable T9CP. Having fitted a vibrating timer alarm to my DX6i I just received an advert from the company advertising a vibrating unit for fitting to the 9C series. Ordered one and around a week later it turned up, cost € 14.00 shipped (worldwide) which in my mind is pretty good. Took around half an hour to install and even with my poor soldering skills it was totally painless, icing on the cake, works perfectly!!!! Nice smooth ‘buzz’ when the time elapses and you can disarm it on switch on if needed. I just made a great Tranny even better, I have missed the alarm a few times this winter flying with a muff and to be honest my hearing was never good so for me it is perfect. http://www.gtronics.net/en/ is the place to go, Web Page in English and the Guy (name is Gabriele so not sure and no offence meant) speaks English. Disclaimer, don’t know the guy, paid full whack for my Module, no personal interest at all, just a satisfied customer. Enjoy, Paul
  2. Paul Bray

    Elevons

    Hi Guys, looks like Alan got this fixed which is good news. Slightly off-topic but driven by posts within this thread.......... When a form of mixing is applied where 1 servo performs 2 functions, like elevons, the 100% throw is actually 50%. Sounds odd (stupid) but if you think about it, a servo has an angle of movement which it can move through which can never be more that 180 degrees (if it was it would start coming back, could make life interesting). As this angle is limited if you had 100% throw for one function and then added another 100% for the other function you would have 200% of movement, add some trim and a slightly off-centre photometer and you would have an angle which could be larger than that which the servo can mechanically move through. However, most servos move around 60 degrees in each direction which if we multiply by 2 (elevator movement plus aileron movement) we would get 120 degrees on each side so you may be thinking no problem, still below our magic 180 degrees. Thing is, the idea of a servo is to create movement and once the servo arm moves away from an angle of 90 degrees relative to the pushrod it starts to move 'in' as well as down (or up) because it is moving through an arc. The further it travels the less movement it produces on the pushrod so it we did use 200 % total travel (120 degrees) and you had a situation where you had full elevator or aileron you would have next to no movement on the other function, could also make for some very exciting moments! The answer my friend is to fit longer arms which will give the correct deflection required on the control surface when using only 50% throw and to take the hit that you will loose a bit of movement when the sticks are getting near the corners. Why is nothing as simple as it seems in this hobby???????????
  3. I was chatting to a mate the other day and it occurred to me that I could not remember the name of the first AG which I built (notice, built, now flown). Did some searching on here and came up with the Whirligig and I think that this was the one. Does anyone out there know when this plan was published??? I built her but made a mistake in the wire gauge used for the rotor shafts, it was far too thin, which led to a tipping from side to side every time that the flight pattern was interrupted. This meant that she took off fine but normally within 20 – 30 yards she would start to oscillate from side to side, looked quite funny but unfortunately anything that I did made it worse until the inevitable contact with Terra Firma which was normally in knife edge flight!!! Can’t remember how many new blades I made for her (they were profiled with a hard wood leading edge) but I got pretty good at it…… Wish that Internet Forums were around then My disappointment in not getting her flying was curbed by the release of Mr. Boddingtons wonderful kit which I flew for many years and finally gave to a young hard-up student (I had pretty much given up flying at that point). One thing that did always bother me slightly was the attitude of some of the old and crusty members of the club at that time (Oh my God, thinking about it I am now old and crusty, I just that I am not like them). Several times they commented that the blades did not actually do anything, the small stub wing did all of the lifting and the rotors were just for show!! No matter how slow I flew her the cynics just would not believe . So, Depron full fuselage (not profile), carbon fibre tube ‘out-riggers’ carrying the rotors (then let someone say that they create the lift), could be an interesting project…..
  4. Thank You all for the greeting. @ Wolstonflyer, yep, good place to play, wouldn't like to guess how many hours I spent there as a kid, happy memories..... As a resident of Kenilworth you used to get in for free as technically the residents owned the place, I used to brag that I owned a castle and then one day the Nation Trust (or heritage or whatever) took it over, gutted. MFA 500, great little toy, got her in around '86 (I think)and got up to flying circuits with her. I then went on to a Morely MXA (collective pitch, WOW) and unfortunately it all went down hill after that (all my own fault), took nearly 2 years to get back to circuits and another 3 - 4 after that to go inverted (actually pretty quick for those days). Now I see the kids today at our field.........................................................
  5. Hi All, firstly, an apology, I posted this on the AG tread first as I missed this one (only been here 2 minutes and messed up already, great start!!!). I am 53 and lie in Germany, posted here with the forces in 1979 and kind of got stuck and am originally from Kenilworth in the midlands. Started with Control line in 1974 (limited success) and got into RC in 1983. Slope, thermal, 'fun fliers' (the Panic was my favourite all time), ducted fan(Thorpe Brothers Hawk, remember them), helicopters (MFA Sport 500 FP was my first) and anything else that could defy gravity!!!! I now only fly electric and have recently got into Auto Gyros which I am having a great time with. Looking forward to chatting with some of you and thanks for any tips/ advice in advance (I sure do need them sometimes), Paul Bray.
  6. Hi All, just registered here and wanted to say hello and to introduce myself. I am 53 and have been into modelling since 1974 (control line with little success) and RC since 1983. Posted out here to Germany in 1979 and kind of got stuck here (don't hold it against me ). Tried most things and enjoy pretty much anything that flies but have recently been bitten by the AG bug. Had a DB Sport AG for years and last year built Al Foots Monotwirl. Teething problems, entirely my own fault and she now flies fine. Tom's Cranefly followed and Rich's Spyro both of which I really enjoy flying. My Burky is now pretty much done, just clear lacquered the cut edges, paint to follow. Looking forwards to chatting with you guys, thanks for any help in advance (I certainly need it sometimes). Paul Bray
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