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The Graphite-Epoxy Motor (GEM) is a family of solid rocket boosters developed in the late 1980s and used since 1990. GEM motors are manufactured with carbon-fibre-reinforced polymer casings and a fuel consisting of HTPB-bound ammonium perchlorate composite propellant. GEM is produced by Northrop Grumman Space Systems. [1]
The TR-107 was a developmental rocket engine designed in 2002 by Northrop Grumman for the NASA and DoD-funded Space Launch Initiative (SLI). Operating on LOX/RP-1, the engine was throttleable and had a thrust of 4,900 kN (1,100,000 lbf) at a chamber pressure of 17.7 megapascals (177 bar), making it one of the most powerful engines ever constructed.
The Star 48 is the largest of a family of solid rocket motors used by many space propulsion and launch vehicle stages, almost exclusively as an upper stage.It was developed primarily by Thiokol Propulsion and after several mergers, is manufactured by Northrop Grumman’s Space Systems division.
The inaugural flight of the new motor occurred in April 2013 as the second stage on the Orbital Sciences Antares medium-lift rocket for International Space Station resupply missions. The CASTOR 30 upper stage measures 138 inches (3.5 m) in length and 92 inches (2.3 m) in diameter, and it weighs 30,000 pounds (14,000 kg).
A launch service provider is a type of company that uses launch vehicles and related services provided by a Launch Agency, including furnishing the launch vehicles, launch support, equipment and facilities, for the purpose of launching satellites into orbits or deep space. [1]
The Minotaur VI is a five-stage launch vehicle proposed by Northrop Grumman that, as of 2024, has not flown. Minotaur VI is based on the Minotaur IV+, adding a second SR-118 first stage to increase performance. [5] A further enhanced variant, Minotaur VI+, is also proposed for beyond low Earth orbit missions using an added Star 37FM sixth stage ...
The TR-106 or low-cost pintle engine (LCPE) was a developmental rocket engine designed by TRW under the Space Launch Initiative to reduce the cost of launch services and space flight. Operating on LOX / LH2 the engine had a thrust of 2892 kN, or 650,000 pounds, making it one of the most powerful engines ever constructed.
The Star 37FM rocket motor was developed and qualified for use as an apogee kick motor on FLTSATCOM. The motor is a replacement for the Star 37E Delta, which has been discontinued. The Nozzle assembly uses a 3D carbon-carbon throat and a carbon-phenolic exit cone. Maximum propellant weight is 2,350 pounds (1,070 kg), while the motor has been ...