RE: Servos for Spacewalker 120
Hi. I have the Seagull models 120 spacewalker and I put a g22 on it. I used Futaba s3010 servos for all surfaces and a s3001 for throtle. At standard 4.8 volts the 3010s will yeild 72oz of torque. At 6 volts they are 90 oz.
I also made a hatch in the bottom of fuselage just forward of tail where antenna exits for battery and some weight to offset g22 for cg. hope this helps.