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The GEM 46 was a 45.1-inch-diameter (1,150 mm) solid rocket motor originally developed for Delta III by Alliant Techsystems. This solid motor variant included thrust vector control (TVC) to help steer the vehicle.
The first stage thrust was augmented by nine GEM-46 solid rocket boosters, sometimes referred to as GEM LDXL (Large Diameter Extended Length). These were 14.7 m (48 ft) meters in length, 1.2 m (46 inches) in diameter, and had a mass of 19 metric tons each, about six metric tons more than the Delta II's standard GEM-40 motors.
This page is an incomplete list of orbital rocket engine data and specifications. Current, upcoming, and in-development rocket engines ... GEM 63 USA: Northrop ...
In addition, the GEM boosters also boasted a lower dry mass than the Castors due to the former's carbon composite construction. [28] In 2003, the Delta II Heavy debuted, featuring larger GEM 46 motors from the abandoned Delta III program. These new motors allowed the vehicle to carry over 1,000 kg (2,200 lb) of extra payload into low-Earth orbit.
This reliable engine cost US$4 million to build and is still flying in modified form today. Gas-jet attitude control system. Stage 3: Altair. A spin-stabilized (via a turntable on top of the Able) at 100 rpm by two solid rocket motors before separation. One ABL X-248 solid rocket motor provided 12 kN (2,700 lb f) of thrust for 28 seconds. The ...
WASHINGTON (Reuters) -Desperate to address surging demand for solid fuel rocket engines, the Pentagon is close to giving a contract for new motors to the untested, privately held startup Ursa ...
L3Harris Technologies' business unit Aerojet Rocketdyne has doubled its monthly production of motors for GMLRS rockets that are heavily used in Ukraine, a company executive said on Tuesday, as ...
The AJ-60A rocket motor was developed between 1999 and 2003 for use on the Atlas V. [2] On January 19, 2006 the New Horizons spacecraft to Pluto was launched directly into a solar-escape trajectory at 16.26 kilometers per second (58,536 km/h; 36,373 mph) from Cape Canaveral using an Atlas V version with 5 of these SRBs and Star 48B third stage. [3]