No, MD11 its easy. Open vent door as usual. Use the handle (located in the floor in the MCD control panel adjacent L1 door) to unlatch the door (from the outside). Then place same handle in hand pump receptacle in the control panel, pull the normal control handle up and twist in open direction, while simultaneously using the handpump to pump open the door. The pump has a good stroke and doesn't take much time or effort to fully open. Reverse the procedure for closing, but the hooks that secure the door in canopy position will need manually moving out of the way on the way down as the door passes through it. When door closed use the handle to manually latch door from the outside. Close vent door. Thats it. Not to bad all all. Far easier than all those turns to unlatch a belly door and again all those turns to open it.