Reconnaissance Aircraft Mirage III RS R-2115 Swiss Air Force is being town out of a cavern on Buochs Airfield by its starter tug Mowag/AEG. Engine started turning already as can be seen at the left main undercarriage door moving up already. Mechanic confirms engine start with hand. Note the starter connection plug in front of the front wheel door, that will be released while still on tow after start sequence is finished and the starter tug will release the aircraft without stopping on the taxiway.