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Rotary Rocket Company was a rocketry company that developed the Roton concept in the late 1990s as a fully reusable single-stage-to-orbit (SSTO) crewed spacecraft.The design was initially conceived by Bevin McKinney, who shared it with Gary Hudson.
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When the Soviet space station program began in 1971, Protons began being flown with the Blok D removed for use as a heavy-lift LEO launcher. Proton-K payloads included all of the Soviet Union's Salyut space stations , almost all Mir modules (with the exception of the Docking Module , which was launched on the United States Space Shuttle ), and ...
The Precision Shoulder-fired Rocket Launcher-1 also known as the (PSRL-1) is a modified American copy of the Soviet/Russian RPG-7 shoulder-fired rocket-propelled grenade launcher developed by AirTronic USA. [1] [2] [3] The PSRL-1 is primarily manufactured for US-allied nations who are accustomed to Soviet-style weapons and international export. [4]
It was developed in tandem with a round capable of being fired from an enclosed area without ill effects on the environment and personnel. Its combined weight is 13.5 kilograms (29.7 lb) — 5.3 kg (11.7 lb) for the launcher, 8.2 kg (18 lb) for the rocket. The contract was worth up to US$51.7 million. [18]
The die measured 67 mm 2 at 0.26 μm and it reached speeds of up to 366 MHz while consuming 7.3 W. In 1999, IBM fabricated versions in a 0.20 μm process with copper interconnects , which increased the frequency up to 500 MHz and decreased power consumption to 6 W and the die size to 40 mm 2 .
In 2011, performance goals for the engine were a vacuum thrust of 690 kN (155,000 lbf), a vacuum specific impulse (I sp) of 310 s (3.0 km/s), an expansion ratio of 16 (as opposed to the previous 14.5 of the Merlin 1C) and chamber pressure in the "sweet spot" of 9.7 MPa (1,410 psi). Merlin 1D was originally designed to throttle between 100% and ...
ABL Space Systems is an American aerospace and launch service provider, based in El Segundo, California, that manufactures deployable launch vehicles and infrastructure for missile defense, [1] formerly for sending commercial small satellites into orbit.