I am wondering whether anyone can recommend a specification of motors to properly manueveure a 66" blimp filled with helium? Ideally they should be light weight and have a low current draw, but I wouldn't mind opting for ones with a higher current draw that produce more power per gram.

I am also wondering whether any of these motors can feed power back into the battery if turned off and strong wind begins to make them turn (like wind turbines)?