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Highbeam Encyclopedia - Search Results for Space Shuttle Solid Rocket Booster Rockets are used in fireworks, as military weapons, and in scientific applications such as space exploration. Rocket Propulsion The force acting on a rocket, called its thrust, is equal to the mass... redesign of the solid rocket booster that caused... www.encyclopedia.com /SearchResults.aspx?Q=Space+Shuttle+Solid+Rocket+Booster   (934 words)

Solid Rocket boosters The Solid Rocket Boosters(SRB) are solid rockets that provide most of the main force or thrust (71 percent) needed to lift the space shuttle off the launch pad. Each rocket booster is 149.16 feet long and 12.17 feet in diameter and SRB weighs approximately 1,300,000 pounds at launch. Because the SRBs are solid rocket engines, once they are ignited, they cannot be shut down. library.thinkquest.org /03oct/02144/spacecraft/rocket.htm   (147 words)

Solid rocket booster - Information from Reference.com Solid rocket boosters (SRB) (or motors, SRM) are used to provide the main thrust in spacecraft launches from the launchpad up to burnout of the SRBs. The solid-fuel SRBs are advantageous for the purpose of boosting launches compared to liquid-fueled rockets because they provide greater thrust and do not have the refrigeration and insulation requirements of liquid-fueled rockets. Solid rocket motors cannot easily be turned off or have their thrust terminated during flight, which is a risk factor for manned spacecraft. www.reference.com /search?q=Solid+rocket+booster   (405 words)

SOLID ROCKET BOOSTERS The solid rocket motor ignition commands are issued by the orbiter's computers through the master events controllers to the hold- down pyrotechnic initiator controllers on the mobile launcher platform. The solid rocket motor thrust profile is tailored to reduce thrust during the maximum dynamic pressure region. SRB separation is initiated when the three solid rocket motor chamber pressure transducers are processed in the redundancy management middle value select and the head- end chamber pressure of both SRBs is less than or equal to 50 psi. science.ksc.nasa.gov /shuttle/technology/sts-newsref/srb.html   (3986 words)

v1ch4 The Solid Rocket Booster tip deflection ("twang") was about four inches less than seen on a previous flight, STS-6, which carried the same general payload weight and distribution as STS 51-L. The period of oscillation was normal. Strut P 12 is attached to the booster at about the 314 degree point and imposes additional inertial forces on the booster which tend to additionally increase the gap by 10 to 21 percent. At the time of relative booster movement, the hole in the shell of the right Solid Rocket Booster was calculated to be six to eight inches in diameter located 12 to 15 inches forward and adjacent to the P12.... history.nasa.gov /rogersrep/v1ch4.htm   (13536 words)

STS-51-L Main engines had been throttled up to 104 percent thrust and the Solid Rocket Boosters were increasing their thrust when the first flickering flame appeared on the right Solid Rocket Booster in the area of the aft field joint. As the flame plume increased in size, it was deflected rearward by the aerodynamic slipstream and circumferentially by the protruding structure of the upper ring attaching the booster to the External Tank. The first visual indication that swirling flame from the right Solid Rocket Booster breached the External Tank was at 64.660 seconds when there was an abrupt change in the shape and color of the plume. www.astronautix.com /flights/sts51l.htm   (1798 words)

Raviblog: Right Forward Solid Rocket Booster Video The fall is stabilized by parachute and the latter part of the video is the approach to the ocean and splash down, with some great tangled parachute lines swirling in the water. Re: disintegration, the main booster -- the big orange one which used to be white (and travels further into space) does burn up on reentry. The two thin solid rocket boosters parachute back down and are fetched to be reused. blog.ravijain.org /2006/07/right-forward-solid-rocket-booster.html   (422 words)

Solid Rocket Boosters SRB impact occours in the ocean approximately 122 nautical miles (141 statute miles) downrange. Each booster is attached to the external tank at the SRB's aft frame by two lateral sway braces and a diagonal attachement. On the launch pad, each booster also is attached to the mobile launcher platform at the aft skirt by four bolts and nuts that are severed by small explosives at lift-off. www.spaceonline.tv /srb.htm   (299 words)

Solid Rocket Booster Photos Workers monitor the solid rocket booster before its being lifted to mate with the Delta II rocket carrying the Mars Polar Lander. A solid rocket booster is raised to a vertical position for mating with the Delta II rocket. A solid rocket booster hangs in place between two other rocket boosters waiting to be mated with the Delta II rocket. mars.jpl.nasa.gov /msp98/images/delta981202.html   (533 words)

SSC San Diego's Solid Rocket Booster Nozzle Plug   (Site not responding. Last check: ) Upon visual acquisition of the SRB and proper positioning of the support platform, the Nozzle Plug vehicle is launched from the support ship and driven on the surface by the operator to the SRB. Once the SRB comes up on the Nozzle Plug camera, the operator drives the vehicle down the length of the SRB to the nozzle area, at a depth of approximately 110 feet. The Nozzle Plug remains in place until the SRB is recovered at the refurbishment facility, where the bladder is deflated, the locking arms retracted and the vehicle removed from the nozzle by a forklift. www.nosc.mil /robots/undersea/srbnp/srbnp.html   (544 words)

Spaceflight :Solid Propellants for Missiles and Rockets In fact, the rockets that Francis Scott Key observed during the War of 1812, called Congreve rockets after their English inventor William Congreve, and which are mentioned in the U.S. national anthem, were virtually identical to those fired by the Chinese eight centuries before. Solids were used for many military applications, such as short-range rockets, but they were not used for any long-range applications, and certainly not for spaceflight due to their comparative lack of power. Soviet rocket designers produced better liquid propellants than their early ones that could be stored inside the missile for long periods of time, but they lagged far behind the United States in solid propellant technology. www.centennialofflight.gov /essay/SPACEFLIGHT/solids/SP13.htm   (1531 words)

Shuttle Triumphs and Tragedies Main engines had been throttled up to 104% thrust and the solid rocket boosters were increasing their thrust when the first flame appeared on the right solid rocket booster in the area of the joint. The first visual indication that flame from the solid rocket booster breached the external tank was at 64.66 seconds, when there was an abrupt change in the shape and color of the plume. The redesign of the O-rings in the SRBs included the addition of a third pressurized O-ring on the outside of the inner two which improves the seal and greatly strengthens the physical connection between the segments to compensate for the extreme forces that occur during launch and firing of the SRBs. aerospacescholars.jsc.nasa.gov /HAS/cirr/ss/2/6.cfm   (2117 words)

THE CHALLENGER ACCIDENT The leak path connects the rocket's combustion chamber with the O-ring region of the tang and clevis. This smoke from the aft field joint at Shuttle lift off was the first sign of the failure of the Solid Rocket Booster O-ring seals on STS 51-L. The leak was again clearly evident as a flame at approximately 58 seconds into the flight. It is possible in either case that thrust vectoring and normal vehicle response to wind shear as well as planned maneuvers reinitiated or magnified the leakage from a degraded seal in the period preceding the observed flames. www.space-shuttle.com /challeng.htm   (2634 words)

Howstuffworks "How Rocket Engines Work" Rocket engines are, on the one hand, so simple that you can build and fly your own model rockets very inexpensively (see the links on the last page of the article for details). On the other hand, rocket engines (and their fuel systems) are so complicated that only three countries have actually ever put people in orbit. The basic principle driving a rocket engine is the famous Newtonian principle that "to every action there is an equal and opposite reaction." A rocket engine is throwing mass in one direction and benefiting from the reaction that occurs in the other direction as a result. science.howstuffworks.com /rocket.htm   (781 words)

SPACE.com -- Atlas 5 Solid Rocket Booster Test a Success Burning for 92 seconds, the qualification test was the second of three planned for the 67-foot-long (20-meter-long) booster before it will be used for the first time in 2003 to help send a satellite into orbit. During the exercise the booster was laying on its side, securely held in place within a massive test stand. The booster largely is based on the company's design and experience with the solid motors used on the Minuteman and Peacekeeper intercontinental ballistic missiles. www.space.com /missionlaunches/atlas5_srb_021031.html   (468 words)

v1ch3 The two Solid Rocket Boosters flew out of the fireball and were destroyed by the Air Force range safety officer 110 seconds after launch. The maximum structural loads on the aft field joints of the Solid Rocket Boosters occur during the "twang," exceeding even those of the maximum dynamic pressure period experienced later in flight. Flame is pinpointed in the computer drawing between the right booster and the tank, as in the case of earlier smoke puffs. history.nasa.gov /rogersrep/v1ch3.htm   (2469 words)

Lockheed Martin and Aerojet Complete Successful Atlas V Block B Solid Rocket Booster Test The Block A SRB, a previous version of the solid motor also produced by Aerojet, was qualified in 2003 and has already flown on three separate successful Atlas V missions for Lockheed Martin. The duration and thrust levels of the SRB test fire matched well with pre-test expectations and were completed as planned, with a burn duration of approximately 90 seconds, producing an average thrust of over 250,000 lbs. Since 2003, a total of seven Aerojet Block A SRBs have flown successfully on all three Atlas V missions that have utilized the added thrust of solid rocket boosters. www.prnewswire.com /cgi-bin/stories.pl?ACCT=104&STORY=/www/story/06-01-2005/0003769221&EDATE=   (558 words)

Solid Rocket Booster information They are ignited after the three Shuttle main engine thrust level is verified.A little over two minutes into the ascent, the SRBs are jettisoned at an altitude of approximately 150,000 feet and 24 nautical miles downrange. The SRBs consist of the forward dome section, 6 individual cylindrical weld-free steel sections approximately 12 feet in diameter, the aft ET attach ring section, two stiffener sections, and the aft dome section. The cylindrical sections contain the solid propellant which is the consistency of a rubber pencil eraser. space.balettie.com /Shuttle/SRB.html   (149 words)

'Return to Flight' Reaches Major Milestone - Space - RedOrbit Each Booster consists of four segments of solid propellant, solid rocket motors, vertically stacked with a nose cone on top and the aft skirt, or base of the Booster, on which the entire vehicle weight rests prior to launch. The Solid Rocket Boosters work with the main engines for the first two minutes of flight to provide the additional thrust needed for the Shuttle to escape the gravitational pull of the Earth. At an altitude of approximately 24 nautical miles, the Boosters separate from the External Tank, descend on parachutes, and land in the Atlantic Ocean. www.redorbit.com /news/display?id=106045   (531 words)

Science Fair Projects - Solid rocket booster NASA Image of the final solid rocket booster (right) being mated to a Delta II rocket (blue). Two boosters (white) can be seen already attached. A solid rocket booster device is used to provide the main thrust in spacecraft launches from the launchpad up to an altitude of about 45 kilometres. www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Solid_rocket_booster   (217 words)

GPN-2000-001422 - Challenger Rocket Booster On January 28, 1986 frigid overnight temperatures caused normally pliable rubber O-ring seals and putty that are designed to seal and establish joint integrity between the Solid Rocket Booster (SRB) joint segments, to become hard and non- flexible. At the instant of SRB ignition, tremendous stresses and pressures occur within the SRB casing and especially at the joint attachment points. It is believed that the ET was compromised in several locations starting in the aft at the initial point where SRB joint failure occured. grin.hq.nasa.gov /ABSTRACTS/GPN-2000-001422.html   (275 words)

Ares-I Rocket NASA Ares I Rocket will be used primarily to launch the Orion Spacecraft to the International Space Station (after the end of the Space Shuttle flight program in 2010) or to 'park' payloads in Earth orbit for retrieval by other spacecraft bound for the moon or other destinations. The SRB is similar to those used on the space shuttle, but with a fifth motor segment added. Because of a reduction in size of the Orion spacecraft as proposed, a decision was made in 2006 by NASA to construct a five-segment booster for both the Ares I and Ares V. www.aerospaceguide.net /spacerocket/aresI.html   (1101 words)

Spaceflight Now | Breaking News | Upgraded Ariane 5 solid rocket booster test fired It lasted for 125 seconds, which is the burn time of the solid rocket boosters on an Ariane 5 flight. Its purpose is to reduce the manufacturing costs of Ariane 5 boosters, partly by simplifying the nozzle and the hydraulic systems that help to gimbal it during flight. Other aims of the test were the evaluation of a six-year-old booster segment when firing, the testing of simplified electrical ducts, and the assessment of the possibility of reducing the number of high-pressure capacities needed for a booster's thrust vector control. spaceflightnow.com /news/n0111/22a5srbtest   (761 words)

KSC Fact Sheet "Space Shuttle Solid Rocket Booster Retrieval Ships" Unlike rocket boosters previously used in the space program, the Space Shuttle's solid rocket booster (SRB) casings and associated flight hardware are recovered at sea. The boosters in use today are the largest solid propellant motors ever developed for space flight and the first to be used on a manned space vehicle. The nose cap of each booster is jettisoned at an altitude of 2.9 statute miles (2.5 nautical miles/4.6 kilometers) and deploys the pilot parachute. www-pao.ksc.nasa.gov /kscpao/nasafact/ships.htm   (1210 words)

Spaceflight :The Challenger Accident Main engine exhaust, solid rocket booster plume and an expanding ball of gas from the external tank is visible seconds after the Space Shuttle Challenger accident on Jan. 28, 1986. Commission members discovered the first indication that the manufacturer of the solid rocket booster, Morton Thiokol, had initially recommended against launch the night before because of concerns regarding the effects of the low temperature on the joint and seal. The findings of the commission determined that the genesis of the Challenger accident-the failure of the joint of the right solid rocket motor-began with decisions made in the design of the joint and in the failure by both Thiokol and NASA to understand and respond to facts obtained during testing. www.centennialofflight.gov /essay/SPACEFLIGHT/challenger/SP26.htm   (1503 words)

The Solid Rocket Boosters... STS Each SRB (2) is made up of a nose cone that houses recovery equipment (parachute, etc.), followed by a forward 'skirt' that contains avionics, then the SRM (Solid Rocket Motor), and finally the nozzle steering equipment in the aft 'skirt'. The solid propellant in a SRM will burn along all of its exposed surfaces that are not coated with inhibitors. There was a problem with the orginal Solid Rocket Booster design: the o-ring seals between sections of the booster were exposed to outside temperatures. www.jracademy.com /~warcholj/cyberchallenge2003/sc/sts/sts_srb.html   (254 words)

USATODAY.com - Cleaning booster chutes no small task   (Site not responding. Last check: ) It's used to clean the parachutes that ease the fall of the space shuttles' solid rocket boosters. When the chutes come to the facility, after they and the boosters are retrieved from the ocean, they're soaked with salt water. Those boosters separate from the orbiter about 30 miles up, then continue their upward motion for more than a minute before falling. www.usatoday.com /tech/science/space/2004-12-01-big-booster-chutes_x.htm   (609 words)

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