U and D for landing gear :) E and space key for takeoff/landing.
Boeing 747-400 Airliner The Boeing 747-400 is a wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747. The "Advanced Series 300" was announced at the September 1984 Farnborough Airshow, targeting a 10% cost reduction with more efficient engines and 1,000 nmi more range. Top speed: 614 mph Weight: 404,600 lbs Wingspan: 211′ 0″ Length: 232′ Range: 8,357.4 mi Introduced: 1989 Engine types: General Electric CF6, Rolls-Royce RB211, Pratt & Whitney PW4000
