Originally Posted by
airpolice
I know it's not going to help the debate a great deal, but in order to stick to the facts, there can't be a collision with a tree, unless the tree is moving.
The co in collide refers to two moving objects coming together. Your car can collide with a car coming towards your car, or your car can hit a tree.
A collision can't involve one moving and one static object. That's just not what the word means.
Not so.
While that may be the usual everyday meaning of collision, aviation Occurrence Categories (as defined in ICAO ADREP, ECCAIRS, etc) include several example instances of a collision between an aircraft and a static object.
For example CTOL (Collision with obstacle during takeoff/landing), GCOL (ground collision with an aircraft, person, ground vehicle, obstacle, building, structure, etc).