Ryan Flowers writes:
We don't have anything in production at the moment that fits your requirements, although I have some ideas I'm hoping to fit into the schedule one of these days. You might take a look at Dave Robelen's "Kestrel" design in the "downloadable plans" section of the R/C Microflight website at... I was thinking something of a micro sloper with ... one aileron only (so as to not overload the hs-50)....
www.rcmicroflight.com
However, I think your one aileron requirement is WAAYYY pessimistic with regard to the capabilities of an HS-50, particularly if you're planning to link both ailerons to the same servo (so that they can counterbalance each other's lift forces). We used an HS-50 on each flaperon for our old Wizard four-servo HLG, as well as the old Monarch CX and the Spectre VR with no problems, including for slope flying. The flaperons on the Wizard were about 24" span each and about 3" chord, with max travels of about 3/4" up and 1/2" down. As long as you make the aileron horn long enough and the servo arm short enough that you're using the full travel of the servo to get the full travel of the control surface, an HS-50 will handle an amazingly large surface. Folks also use them for Speed 400 pylon racers with ailerons on both wings (certainly as fast as your sport sloper is likely to be) with no trouble.
It's only if you waste the servo's capabilities by setting up a way-too-sensitive control linkage, and then expecting the transmitter programming to reduce the travels, that you're likely to create a problem. A fancy transmitter is no substitute for good design and building practices! Take the time to get an efficient linkage setup, then use the transmitter programming for fine-tuning only. Your efforts will be rewarded with better use of the servo torque, less sensitivity to slop and better resolution.
Don Stackhouse @ DJ Aerotech
[EMAIL PROTECTED]
http://www.djaerotech.com
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