servo strength
 

Does anyone know of a formula to determine servo power to control surface area? Thanks for the help

RE: servo strength
 

Do a google for "servo load calculator" and you'll get hits that take you to a couple of online calculator sites. Input the size, speed and max deflection angle and it tells you how many inch-ounces of torque it needs. But do not spec your servos with that number. If you do they will be running very close to their stall load and that's not good for the internals. Instead take that number from the calculator and double it and look for servos of that strength. That way you're running well within the servo's comfort range and not on the edge where you're risking a failure that could cost you an airplane.

RE: servo strength
 

Here you go.

http://www.csd.net/~cgadd/eflight/calcs_servo.htm

Plug in the info and it will tell you how many oz of torque you need.

RE: servo strength
 

Thanks for the quick response. This is perfect.

RE: servo strength
 

Thanks for the Quick response, the information is perfect.

RE: servo strength
 

Remember to buy servos that have double what you need according to the calculator.

RE: servo strength
 

Yes, thanks, I just happen to have the ones that I need. Thanks again, I really appreciate the help.

RE: servo strength
 

Hi All I'm trying to use the servo calculator.How do I determine what the degrees in travel for the servo..What degrees is equal to 1/4 or 3/16
Thanks Dan

RE: servo strength
 

Hi Dan, the degrees referred to in the servo calculator is the amount of control surface travel from the neutral position. The farther the control surface moves, the harder the servo has to work to maintain the setting. Hope this helps, Chet

RE: servo strength
 

OK Thanks