How much torque is needed for Throttle Quadrant levers???

[fzfq3m]

Hi, i'm planning to build my own TQ with motorized Auto throttle motion... the problem is that i don't know wich motor type is better, Servos or Stepping!!!

I mean, i know that high torque motors will be required to achieve a more or less real movement but how much torque is really needed???

Saludos, estoy planeando crear un Throttle Quadrant de un 737 (dos motores) usando servos o motores paso a paso, y tengo dos dudas:

La primera: He leído que es mejor usar motores paso a paso en vez de servos, segun los motores PAP ofrecen mayor Torque que un servo, sin embargo he visto servos de 416.61 oz.in (30.0 kg.cm) incluso hasta mayores... Que usarían ustedes???

I found a tutorial where two 14ncm stepper motors are used to move two throttle levers, and if i'm not wrong 14ncm are more or less equal to 150oz.in (10.5kg.cm)...

My question is: Wich are beter, Servos or Steppers??? and how much torque for each throttle lever???

Regards

[Trevor Hale]

There are plenty of Servo Controllers on the market. I think it would be easier if you go to servo's.

Trev

[fzfq3m]

Yes i also think it would be easier going with servos, but do you have any advise about torque amount? I mean, should i pick a high torque servo ??? i was thinking something around 200oz.in or 300oz.in but i'm just guessing the amount needed...

[AndyT]

I would probably go with the bigger motor/servo. It will strain much less to move the levers and that will increase the lifespan of it.

[Trevor Hale]

I agree. The bigger and more powerful, the less chances you will have to replace it