Russian heavy-lift orbital launch vehicle. In 1962 Vladimir Chelomei proposed a family of modular launch vehicles. In January 1969, Chelomei was proposing the UR-900 for the Mars expedition. A garbled description of this launch vehicle appears in Chertok's memoirs.

The UR-900 was the ultimate Universal Rocket application, a super heavy-lift launch vehicle for crewed expeditions to other planets, especially Mars. Proposed in 1969, it would have had 15 RD-270 modules in the first and second stages, and the …

Dec 28, 2019 · The UR-900 was basically a more powerful rocket with 15 RD-270 engines that would have powered the first and second stages. The UR-700 lost out to the N1, and the UR-900 remained a paper...

Proton (Russian: Протон, formal designation: UR-500) is an expendable launch system used for both commercial and Russian government space launches. The first Proton rocket was launched in 1965.

Mar 22, 2019 · UR-700M/UR-900 - Mars V.N.Chelomey then proposed a rather ambitious project of the MK-700 spacecraft for a flight to Mars, designed to be launched with the help of a super-powered LV...

The Chelomey design bureau UR-900, also known as the UR-700M, proposed in 1969 and rejected by the Ministry, was designed for a manned Mars mission. Its useful payload capacity to low-Earth orbit was 200-230-240 metric tons, depending on …

The UR-700M launch vehicle had a gross lift-off mass of 16,000 metric tons and could deliver 750 metric tons to a 250 km, 51.6 degree orbit. It consisted of three stages: Stage 1 and 2 used Lox/Kerosene propellants, and stage 3 Lox/LH2.

Nov 24, 2021 · Meanwhile, Vladimir Chelomey, Chief Designer of the OKB-52, had a plan to develop the universal rocket family, known as the UR series. Chelomey’s idea was to have a …

Jan 1, 2025 · The UR-900 was the ultimate Universal Rocket application, an ultra-heavy-lift booster for crewed expeditions to other planets. As such it remained a paper project.

Apr 6, 2025 · Flight status, tracking, and historical data for Uganda Airlines 900 (UR900/UGD900) including scheduled, estimated, and actual departure and arrival times.