Witha Moving Platform and at a faster speed there is considerable turbulence for you to attempt a landing , generated from the Carriages and engine in front of it. As well as a core which travels with the train as a sudden drop in headwind just when you don't want it with turbulence in the windshear which always happens in those situations. I would NOT even attempt it. With a Platform on a truck and Much slower speed involved. Maybe. Cleaner Air. Nev