Sukhoi T6-1 Su-24 Prototype 3D model

https://www.cgtrader.com/3d-models/aircraft/military-aircraft/sukhoi-t6-1-su-24-prototype-c360966b-aad7-4c04-b0f5-bc34736df083

The T6-1 prototype, first flown in June 1967 is a fixed-wing aircraft (but with very special wingtips) as opposed to the production Su-24 that featured variable geometry wings. Furthermore this prototype has 4 RD-36-35 lift engines in the fuselage to give the aircraft STOL characteristics.