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The Sukhoi T-3
was a prototype Soviet
Starting in the early 1950s, the development of the T-3 proceded in parallel with the S-1 which would eventually become the Sukhoi Su-7
. While the S-1 was a conventional swept wing
stood for strelovidniy
, стреловидный, swept wing), the T-3 had a delta wing
with a leading edge sweep of 57° (T
stood for treugolniy
, треугольный, delta wing). Aside from the wings, the two aircraft shared the basic design as well as the Lyulka AL-7 turbojet
engine. Since the T-3 was intended to be an interceptor, it was fitted with the Almaz
(Алмаз, Diamond) radar
housed in the air intake. The prototype first flew on 26 May 1956.
The T-3 was ordered into production at Factory No.153 but events overtook it when a revised specification was issued for the Interceptor fighter role. Three aircraft were completed and transported by rail to the OKB-51 factory near Moscow, where only one was to fly in as-built condition and all three prototypes were modified for various test programmes, becoming, for example, the T-39, T-49, PT-7, PT-8 and other experimental aircraft.Gordon, Yefim. Sukhoi Interceptors”.......