RCU Forums - View Single Post - Gp Giles 202 1/4 Scale, Upthrust Problem!!!!
Old 04-11-2002 | 12:35 PM
  #31  
amcross
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Gentlemen,

The thrust angle is VERY VERY VERY extensively tested and is 100% accurate. Thrust angle is not set to give you a nice looking stab/elevator mate, it is set to keep the model from changing pitch trim when power is applied. As someone stated along the way, if hte model does not pitch down hard, suddenly, upon pulling back the throttle, then the model does NOT need more downthrust.

It sounds to me like a wing incidence/seating problem, and I am passing this thread along to our R&D manager immediately for his research and to check the wing/stab measurements on the flying prototypes and post-prototype models. Nearly every member of our R&D staff have one of these, and love them, so we should have plenty of data to work from!

Paul, I'm sure it was an innocent mistake if your email was not responded to. We answer literally thousands of pieces, and mistakes, system failures, etc, can and do happen. Please do note that your indication that we are "dead wrong" about the thrust angle is inaccurate.

Sincerely,
Mrs. AnnMarie Cross
Senior Manager, Proprietary Services and Support
Great Planes Model Distributors
[email protected]
www.greatplanes.com
www.bestrc.com
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