[Daz(DJLFlapper)]

Hi,

Any addition to weight is going to affect the flight of the smaller heli's. You will need to get it as close to the C of G (centre of gravity) as possible. you may need a better motor to give you the power to lift the extra weight. unless you are experienced at flying the heli I seriously doubt weather it would be worth you mounting it to start with.

Regards
Darren.