Nice. Helped to assemble in museums, a Vampire, Harrier and F-4, conservation and preservation work on an Me-163, Spitfire XVI, Vulcan, de Havilland Comet airliner, bits of rockets and other assorted aircraft related things including different engines, like RR Derwent, Merlin, Great War Renault V-8 from a B.E.2 etc. Worked on worbirds as an engineer mainly in a propeller workshop, Hamilton Std 23E50 for DC-3 and Yak-3, and Rotol (actually a Hoffman prop, but no one can tell the difference) prop for a Spitfire IX. Worked on as an engineer P-3, C-130, UH-1, also involved in prepping 17 ex-RNZAF A-4s for storage outside. I guess all those can be called 'old' aircraft, all having their first flights in the 1950s!