... oh dear ... such pedantry,
Hooloovoo ...
The licence you hold (I assume) is to fly a helicopter - and not part of a helicopter - so I would guess it means when the whole helicopter moves under its own power ... but I may be wrong ...
In my humble opinion, it means when the helicopter moves under its own power, i.e ground taxy, air taxy, lift, or whatever it does to itself to physically displace itself from its previous position, for the eventual purpose of taking off ...
To employ "plain English" one must assume some "common sense", surely ... ? Or perhaps the current wording is an attempt to pre-empt mischievous interpretations such as yours ... !
JD
