![]() The term "solid rocket motor" applied to the propellant, case, igniter and nozzle. While the terms "solid rocket motor" and "solid rocket booster" are often used interchangeably, in technical use they have specific meanings. ![]() Each booster had a liftoff thrust of approximately 2,800,000 pounds-forces (12 MN) at sea level, increasing shortly after liftoff to about 3,100,000 lbf (14 MN). On the pad, the two SRBs carried the entire weight of the external tank and orbiter and transmitted the weight load through their structure to the mobile launch platform. Over 5,000 parts were refurbished for reuse after each flight. The solid rocket boosters were re-used many times. The SRB cases were made of steel about ½ inches (13 mm) thick. The SRBs were jettisoned two minutes after launch at a height of about 46 km (150,000 ft), and then deployed parachutes and landed in the ocean to be recovered. In addition, the SRBs support the entire weight of the space shuttle orbiter and fuel tank on the launch pad. The SRBs are solid rockets that provide most of the main force or thrust (71 percent) needed to lift the space shuttle off the launch pad. orbital maneuvering system (OMS) on the orbiter.To lift the 4.5 million pound (2.05 million kg) shuttle from the pad to orbit (115 to 400 miles/185 to 643 km) above the Earth, the shuttle uses the following components: Let's look at the stages of a mission one by one. The orbiter then glided as a spaceplane to a runway landing.Ī typical shuttle mission lasts seven to eight days, but can extend to as much as 14 days depending upon the objectives of the mission. At the conclusion of the mission, the orbiter fired its OMS to de-orbit and re-enter the atmosphere. The SRBs were jettisoned before the vehicle reached orbit, and the ET was jettisoned just before orbit insertion, which used the orbiter's two Orbital Maneuvering System (OMS) engines. The Shuttle was launched vertically, like a conventional rocket, with the two SRBs operating in parallel with the OV's three main engines, which were fueled from the ET. orbiter - carries astronauts and payload.external fuel tank (ET) - carries fuel for the launch.two solid rocket boosters (SRB) - critical for the launch.The space shuttle consists of the following major components:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |