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LL

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LL-1 Rocketplane

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AKA: Ts-1. Status: Operational 1945. Thrust: 14.70 kN (3,305 lbf). Gross mass: 2,039 kg (4,495 lb). Unfuelled mass: 1,139 kg (2,511 lb). Height: 8.98 m (29.46 ft). Span: 7.22 m (23.68 ft).

The LL was towed to a 6 km release altitude by a Tu-2 aircraft. After being cast off, it would fire its Kartukov PRD-1500 solid rocket engine and accelerate to the edge of the sound barrier, with a camera photographing air flow on the tufted wing. The LL-2 was not finished because contemporary fighter programs were already providing data on swept wing configurations. But in 1946 to 1948 the LL-1 flew 30 times and the LL-3 100 times, with test pilots M Ivanov, Amet-Khan Sultan, Anokhin, and Rybko at the controls.

Crew Size: 1.

• LL rocket-powered transonic aerodynamic testbed authorised. - . Nation: Russia. Spacecraft Bus: Russian Rocket Fighters. Spacecraft: LL. In 1946 to 1948 the LL-1 flew 30 times and the LL-3 100 times, with test pilots M Ivanov, Amet-Khan Sultan, Anokhin, and Rybko at the controls..