@Jon Clarke Once again Jon thanks for your patience. I have followed your instructions and this time succeeded. WED is fascinating but I suspect very dangerous You are absolutely right that I should try for myself after all that's the only way to learn. An amusing story from this effort of mine. As I said in a previous post I am circuiting the UK and as I was born in Plymouth this was a place to visit, hence I discovered the ramps. I left the aircraft parked in Plymouth and saved the flight. Having flattened the airfield I planned to use this saved flight to take off and check the runway. When I loaded it the aircraft crash to the ground from a very short height and turned turtle. I reloaded and the same thing happened. (had I done something wrong again I had left the aircraft parked on the apron after all!) Then it dawned on me that having flattened the airfield I had probably parked the aircraft on higher ground and in the flattening process literally pulled the ground away from underneath it. (The aircraft remembering at what altitude it had been left at!!!!)
Once again thanks (for now!) Jon Jewitt