The most extensively used of the first generation of jets, it quickly pushed the remaining piston-engined aircraft
off the routes, chiefly because its mechanically simpler engines needed removing after periods of thousands rather than hundreds
of hours. A most efficient aircraft, very reliable and with well-designed passenger and galley accommodation, it has earned
the respect of aircrew- although some "jet upsets" were experienced early on, before pilots learned the new game. It has always
been a demanding aircraft to fly well, particularly in crosswinds, because of its heavy swwep-back, narrow-track undercarriage
and low engine pods; but pilots soon adapt to this and find it very satisfying.