OK here's a little experiment.
The next time you are travelling back to your hotel (down the M56/M40/Route 66, whatever) in the crew bus, get one volunteer to stick his/her head out of the skylight hatch at the back of the bus. Next get volunteer B to let go of something out of the forward skylight. Something quite light but a reasonable surface area and see how quickly said item changes velocity. For added laughs try to make the projectile sticky or wet (dyed with engineers blue would give a perfectly permenant record!
)
The theory sounds good to me.
