On 26 February 1946 OKB-134 was tasked with developing and building a bomber powered by four Lyul'ka TR-1A or six RD-10 turbojet engines. Work began on 24 April 1946, with many different configurations studied before the design was frozen. Alternative powerplant arrangements were constantly studied and included:-[1]
4 x RD-10 (Jumo 004 copies)
6 x RD-10 (Jumo 004 copies)
4 x Lyul'ka TR-1
4 x Lyul'ka TR-1A
4 x Lyul'ka TR-2
4 x RD-500 (Rolls-Royce Derwent copies)
The Su-10 was a multi-engined jet bomber with a crew of four comprising, Pilot, Navigator/Bomb aimer (usually the Commander of the aircraft), gunner/radio operator, gunner/observer. Ejection seats were provided for Pilot, Navigator and radio Operator, the tail-gunner escaped after jettisoning the tail barbette.
Sources:
Wikipedia
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3D model by Marek Rys