Dropper Requirements

Max Weight: not sure?

Max Height: I’m guessing it needs to fit under the plane and not hit the ground - need to measure

Max 2 servos?

Must be able to lift 4” cube and up to 1lb - https://www.amazon.ca/BoxBargain-Corrugated-Shipping-Boxes-Bundle/dp/B079RLDDT2/ref%3Dsr_1_14?keywords=small%2Bcardboard%2Bboxes&qid=1567013534&s=gateway&sr=8-14 (we might want to buy some for testing)

Open