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  2. Solid-propellant rocket - Wikipedia

    en.wikipedia.org/wiki/Solid-propellant_rocket

    The Space Shuttle was launched with the help of two solid-fuel boosters known as SRBs. A solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses solid propellants ( fuel / oxidizer ). The earliest rockets were solid-fuel rockets powered by gunpowder; The inception of gunpowder rockets in warfare can be credited to ...

  3. Space Shuttle Solid Rocket Booster - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_Solid_Rocket...

    Burn time. 127 s. Propellant. PBAN - APCP. The Space Shuttle Solid Rocket Booster ( SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight. [1] A pair of these provided 85% of the Space Shuttle 's thrust at liftoff and for the first two minutes of ascent.

  4. United States Army Reserve - Wikipedia

    en.wikipedia.org/wiki/United_States_Army_Reserve

    The United States Army Reserve ( USAR) is a reserve force of the United States Army. Together, the Army Reserve and the Army National Guard constitute the Army element of the reserve components of the United States Armed Forces . Since July 2020, the Chief of the United States Army Reserve (CAR) is Lieutenant General Jody J. Daniels. [4]

  5. Awards and decorations of the United States Department of the ...

    en.wikipedia.org/wiki/Awards_and_decorations_of...

    Furthermore, the U.S. Army mandates that all unit awards will be worn separate from individual awards on the opposite side of a military uniform. The Army is the only service to require this separation between unit and individual decorations. All Army unit awards are worn enclosed in a gold frame.

  6. Structure of the United States Army - Wikipedia

    en.wikipedia.org/wiki/Structure_of_the_United...

    Team: The smallest unit. A fire team consists of a team leader (usually a sergeant or corporal ), a rifleman, a grenadier, and an automatic rifleman. A sniper team consists of a sniper who engages the enemy and a spotter who assists in targeting, team defense, and security. 4 soldiers.

  7. Space Shuttle Challenger disaster - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_Challenger...

    On January 28, 1986, the Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated 46,000 feet (14 km) above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39 a.m. EST (16:39 UTC ). It was the first fatal accident involving an American spacecraft ...

  8. Thrust vectoring - Wikipedia

    en.wikipedia.org/wiki/Thrust_vectoring

    Thrust vectoring, also known as thrust vector control ( TVC ), is the ability of an aircraft, rocket or other vehicle to manipulate the direction of the thrust from its engine (s) or motor (s) to control the attitude or angular velocity of the vehicle. In rocketry and ballistic missiles that fly outside the atmosphere, aerodynamic control ...

  9. Army Service Ribbon - Wikipedia

    en.wikipedia.org/wiki/Army_Service_Ribbon

    Army Service Ribbon. Completion of any Advanced Individual Training. The Army Service Ribbon ( ASR) is a military award of the United States Army that was established by the Secretary of the Army on 10 April 1981 as announced in Department of the Army General Order 15, dated 10 October 1990. [2]