Tenuous, loosely-related trivia on military DC-3 replacement.
RAAF/SAAF/RAF Desert Air Force, 1943-44, learning how to sustain upfront Units: C-47: named by Ike as the only aircraft in his list of the 5 war-winning utensils.
RAAF keeps C-47 (last R&D hack) to 11/99: 56 years since acquistion; adds Caribou 2/64 and retains them 45 years to 11/2009. SAAF continues today to rely on Turbo-C-47: so, 1943-now = 72 years and counting.
UK starts to replace C-47, 1949, with Valetta (as transport to 1968, to spare $). Starts thinking of replacement, 1956; looks at vertical insertion by Fairey Rotodyne compound device, and Westland WG.1 (V.107, to be CH-47 Chinook); at STOL DHC Caribou, and Short P.D.17 (Bréguet 941); bridges with SAL Twin Pin, 10/58-68 and pyrotechnic Bristol Belvedere, 1961-69; re-looks at this in 1961 and settles for Andover C.1 (12/66-8/75, as transport). Decides that rotors are now reliable, taking Puma (1971->2025: >54 years) and Wessex HC.2 (1964-1997 as transport: 33 years). In 1967 orders 15 Chinooks; cancelled 1/68; in 1978 orders 33, then many more to work >2030…so, >63 years since first ordered.