Stevo Posted October 22, 2017 Share Posted October 22, 2017 For my Stuka? Savox is my choice, I have the following choices, all rated at 6V, fed from a 2C LiFe battery, all metal geared:- 0254 7.2kg 0253 6.0kg 0252 10.5kg 0251 16kg Obviously I'm really not fussed with speed on a lumbering warbrid. Requirements are for... One servo feeding both ailerons One servo feeding both flaps One servo feeding rudder and tail wheel One servo feeding elevator One servo feeding throttle Aircraft is almost 2M span with Saito 100. My feelings are the 16kg versions for Flaps and ailerons, 10kg for elevator & rudder and obviously the lighter one for throtte. ... or am I over cooking it? Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted October 22, 2017 Share Posted October 22, 2017 Not sure which require more torque, my strongest tends to be put on rudder/elevator, ailerons get a servo each, i use hi torque/speed servos anyway so maybe not the best to ask, Overkill ? some might say so, never lost a model because of it though, servo each or 1 driving two ? depends on ease of doing it and weight it'll add, and eliminating slop. Quote Link to comment Share on other sites More sharing options...
Jon H Posted October 22, 2017 Share Posted October 22, 2017 3kg 148's for everything. It was designed with less in mind and would be fine. I flew my 70'' P40 and my old Galxy models mustang on 148's and never had any issues. That said, for peace of mind something with a shade more muscle might not be the end of the world but i dont even use more than 10kg on my 80'' 300-360v powered fighters. The most i use is about 8 or 10 on flaps as they are like barn doors deflected at a great angle against the airflow. Elevator gets 6-8, ailerons 5-6 and rudder gets about 3.5-4.5. You would be fine with 5kg servos all round. The list you have there is great, but is on par with the list of servos used in a 1/4 scale over 20kg sptifire project i was involved with, and they were considered overkill in that model too. I think you should save your pennies and save them for another project Edited By Jon Harper - Laser Engines on 22/10/2017 19:41:11 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted October 22, 2017 Share Posted October 22, 2017 Agree. Quote Link to comment Share on other sites More sharing options...
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