I have a Tower Pro 9g Micro Servo (SG90) and it's datasheet says it's stall torque is (Stall Torque at 4.8 volts = 16.7 oz/in (1.2 kg/cm)), but as I haven't learned physics, I don't know how to calculate how much weight it can handle stacked on top of the arm/horn. I have googled torque calculations and the servo itself, but can't seem to find an answer to my question.
Thank you for any help you can provide me, I appreciate your time.
depends on brand, we tested servoes for airplane use and all got to withing 5% of stated value. Some got as high as an extra 15%. We tested before the build so we knew we wouldnt have any trouble in the air.