weathervane

I just got a 1/4 scale Bud Nosen Cub. I will be needing 6 servos for this thing. 1-Throtle, 2-ailerons, 2-elevator, 1-rudder. Can I use standard Futaba S3003 servos for the control surface. I do not mind getting better servos but I do not want to spend a small ransom for them.

Thanks, Andrew

ggraham500

My Feedback: (4)

Depends on the instructions recommendations on servo torque strength ... for this type non-acrobatic probably Futaba S9001 coreless servos would do the job easily.. Maybe a bit of overkill, but certainly functional.

The Bluehead

Hey Andrew,

The big Cub will fly fine with regular servos, but with the very large control surfaces, the airloads will put a good strain on them. If you do any loops, rolls etc, or need to pull up after a steep descent, they could be at their limits. For the small extra bit of money, the Futaba 3010 has 72/90 oz of torque at 4.8 and 6 volts. And for 20$ each at tower right now. They are standard size so not too much work putting them in. I used them in my BUSA 1/4 scale Cub. Any other stronger than std servo will give you a greater safety margin and better performance. Hope to have it done in a week or two....putting in the windows and windscreen tonight.

Good Luck, Will

weathervane

Thanks guys. I'm new to the giant scale plane, so I am learning as I go along.

Thanks again, Andrew

carl01

My Feedback: (4)

Hi Andrew either the 3010's or the Hitec 645's but you can use one of the regular servos for the throttle. I have a balsa usa 1/4 cub that im just finishing up and used both types.... Good luck Carl