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david goulding

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  1. Hi Mark, my retract rails look Ok but then I havent flown the model yet so we'll have to see what happens! Best of luck with yours. Regards
  2. Hi There I have a Hanger 9 Mustang and I dont know where to measure the C of G from. The instructions say the C of G should be 4.75 inches from the leading edge of the wing but since the cord of the wing tapers away from the fuselage do I measure at the wing root or at some other point? I feel quite let down as the instructions are quite good up to this point and although they state the importance of a correct C of G there is no diagram or photo to help! 
  3. I have always liked Piper Cubs so I bought one from a reputable trader as my second model after my trainer. My instructor told me that a Cub was not rated as a trainer as it would be more difficult to fly. Boy was he correct! He flew the maiden flight and the model flew in an almost prop hanging position in the sky and yawed badly in turns. Tail heavy he said. Back to the building board. The building instructions were checked and the position of the Cof G,when the dimension given was used, was found to be 40%,so lead was added to the nose to bring it to 30%. Not much improvement was found. After going on another website, more knowledgeable people than me suggested more lead and more up than down (differential) on the ailerons. By this time I had passed my A cert and I asked my examiner to test fly the model in its new modifyed condition, This was flight number three. He took the model off and flew it around and it was better but still looked aukward in the air, he then asked the fatal queation "can I take the rates off" and he then did so and immediately the model went into a spin, he recovered it but it then spun in the opposite direction and it was then too low to recover and it crashed. I was so disgusted with it I sripped all the gear out of it and gave the airframe away!
  4. Yes I'll have a go. I just love those planes with spare wings!
  5. Yes I think one of those would look good at our site!
  6. A plane like this needs a proper engine, not something that used to make the washing machine go!
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