Class D Airspace is actually very limiting to glider pilots, because we have to get permission to enter it by radio (not all gliders are fitted with radios) and air traffic controllers can refuse entry for any reason, and because we can't fly straight and level, it can be impossible to comply with their instructions. We generally avoid planning cross-country flights that pass through Class D Airspace for these reasons, which in some parts of the country constricts us to quite small areas and narrow corridors, The best looking soaring conditions are always in the Class D!your implication here is that (restricted) class D is in some way limiting, and would suddenly prevent you (gliders) entering. Very misleading - almost worthy of Cutting Edge :thup: