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dougsmith

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  1. Hi Doug, Just read your info regarding your nose wheel mod. Can you provide a pic of how the a/c sits with the lengthened nose wheel leg? Thanks.
  2. I have a pair of headsets with the small telephone plugs. I understand they are called helicopter headsets??? I cannot check them but you are welcome to them at $10 each plus postage. If you want them and they do not work I will send back the $20. email me [email protected]
  3. Hi I notice that your Sapphire reg is 520. I have a Sapphire reg 10-0522. Do you know the history of your aircraft? Mine is unusual in that it only has a wingspan of 24' and the stabilizer is higher up the rudder, in line with the prop. regards Doug S
    1. dougsmith

      dougsmith

      Thanks. I notice that was called a Solitaire but it looks like a Sapphire but maybe it is a clone. My particular model Sapphire is a one off as far as I know. regards Doug S
  4. Regards the earlier comment on over the rotating business happening on take off it can be somewhat disconcerting. When the our aircraft had reached flying speed it was necessary to pull it off the ground but very carefully to catch it so as not to go too nose up and stall. Similarly on landing and holding the nose wheel off the aircraft would reach a speed where the nose wheel would be suddenly thumped onto the ground. This appeared to be because the wing angle of incidence was sufficiently negative when all wheels were on the ground with the effect to hold the aircraft down in that "level" position when attempting a take off until the elevator had sufficient authority to overcome the down force of the wings. This condition was corrected by lengthening the nose wheel strut by 50 mm, even thought the strut had been made according to the plans. This has given the aircraft a small amount of positive wing incidence and a better looking stance, now it sits level and not nose down as before. It is now a pussy cat to fly, just a slight back pressure on the stick and it takes off pretty much when it is ready, usually around about 50 kts, and no longer leaps into the air. On landing the landing run is very controllable and the nose wheel sits down nicely after the normal hold off. In 4 years since the mod. the aircraft has performed beautifully which leads me to think that the design could be improved in respect to the wing incidence when at rest. I have not noticed any weaving mentioned above, in this particular aircraft, a 601 HD The ailerons are adjusted both slightly down so they are "pushing" against each other and so negating any ability to flutter.
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