Farnborough International Air Show 1978. A three engine turboprop DC-3 conversion. Only two were built and this aircraft spent a lot of time in the Arctic and Antarctic. Built as a C-53 for the USAAF as 41-20133 and taken on charge on 30 Mar 1942. To TWA as NC44783 on 30 May 1945. Later to N44783, N2001, N700CC and N4700C. Converted by Conroy to a DC-3TP turboprop on 13 May 1969. To N23SA in May 77 and converted to a Tri-Turbo 3. To Polair on 20 Aug 1979. Noted derelict opposite the Basler facility during EAA2023 at Oshkosh on 26 Jul 2023.