Horse Fly Hobbies Wild Thing, 70% scale prototype
given to me by Mike Glass for evaluation.
Foamie aerobat, built spring 2006, retired spring 2007.
Span 477 mm. Wing area 174 sq.in. Airframe 2 oz, all-up 6 oz.
Tanic 3s 340mAh battery,
Himax 2212-0840 outrunner,
GWS 9x4.7 prop.
Caseless Hitec 555 rx (now replaced with a GWS R-6 N II).
3 Futaba S3110 servos.
Throws (mm, peak to peak): low ail 9, ele 52, rud 57. High ail 27, ele 76, rud 122.
Full-throttle static thrust-to-weight 1.7:1 (15 W, 10.5 oz, 5000 rpm, 22 mph pitch speed).
Aerobatic flights--no other kind makes sense--last about 7 minutes.
As a prototype, it needed less rudder-to-pitch coupling,
more elevator authority, and more downthrust.
Extending the elevator aft helped.
Even 10-inch props (half the wingspan!) posed no torque problems.
She's twitchy with so little wingspan, but plenty of fun. Wind is little problem.
Polycrylic'd carbon tow on the foam edges, for strength and for wear strips,
lets her tolerates rough landings, too. Eventually I gorilla-glued bamboo half-spars into the wing roots.
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