I'm designing a bomb bay door for my RC place. Fuselage has circular base, I want to recover the door to its original position after deployment, so I decided to use servos for the job. But I think payload might move the bomb bay door when I don't need to. So my question is how much torque do I need to move my servo? So that I can calculate my payload weight accordingly. I tried other configurations for the dropping, but no other configurations worked for my payload.