Molded Supra launch hinge moments are listed below, for a 200 lb tow load (hard F3j launch). For smaller tow loads, hinge moments will be proportionally smaller.
wing camber = +10 deg rudder defl = 30 deg wing CL = 1.2 lift = 200 lbs q = 0.16 psi = 1104 Pa V = 95 mph = 42.5 m/s Flap hinge moment = 4.87 in-lb = 78 in-oz = 5.62 kgf-cm Ail. hinge moment = 3.15 in-lb = 50 in-oz = 3.60 kgf-cm Rud. hinge moment = 2.12 in-lb = 34 in-oz = 2.45 kgf-cm To get the servo moment (torque), this hinge moment must be multiplied by a linkage geometry factor, which is approximately by the ratio of servo/surface horn lengths. This is between 0.7 - 0.9 for most installations. Assuming a horn length ratio of 0.8, the servo moments are: Flap servo moment = 62 in-oz Ail. servo moment = 40 in-oz Rud. servo moment = 27 in-oz RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
