Chris Anderson, an early developer of sUAS hardware and ArduPilot firmware

Under new legislation, small Unmanned Aircraft System is subject to compulsory registration prior to the small UAS operating outdoors.

Since home development of model aircraft, small UAS is a procedure made of the following steps:

1. buy parts, install motors, propellers, battery, control unit, radio, sensor/s

2. assembly the above parts

3. test such home developed model aircraft outdoor

loop 1. 2. 3. 

Under new legislation home developers, modellers are banned to test new assembled

small aircraft, small drones outdoors,

since you are required to register any assembled kit before the operating outdoors.

Battery replaced >  New registration required > new registration number assigned

Motors replaced > ..

Propellers replaced > ...

New frame purchased for tests >  New registration required

So in theory and practice, activities of ArduDrone, ArduPlane developers, modellers

have been banned, since any new test is subject to prior registration.

If you claim, you are allowed to replace parts, frame, motor, propellers, battery, controller, radio in your home developed mini drone and such new developed small drone is exempted from compulsory registration, pls let me know your opinion.