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  2. Model rocket motor classification - Wikipedia

    en.wikipedia.org/wiki/Model_rocket_motor...

    The largest vendors of high-power rocket motors in the world are Cesaroni Technology Inc. and RCS Rocket Motor Components, Inc. The very first model rocket motor certified was by Model Missiles Inc. (Orville Carslile). Circa 1958. The very first high-power rocket motor certified was by U.S. Rockets (Jerry Irvine). Circa 1985.

  3. Comparison of orbital rocket engines - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    This page is an incomplete list of orbital rocket engine data and specifications. Current, upcoming, and in-development rocket engines ... Engine-2 Vacuum

  4. Aerojet Rocketdyne AR1 - Wikipedia

    en.wikipedia.org/wiki/Aerojet_Rocketdyne_AR1

    Aerojet Rocketdyne proposed in 2014 to "lobby the government to fund an all-new, U.S.-sourced rocket propulsion system." In June 2014, Aerojet initially projected it would cost under US$25 million per pair of engines, not including the up to US$1 billion estimated development cost to be funded by the government.

  5. Model rocket - Wikipedia

    en.wikipedia.org/wiki/Model_rocket

    A model rocket is a small rocket designed to reach low altitudes (e.g., 100–500 m (330–1,640 ft) for a 30 g (1.1 oz) model) and be recovered by a variety of means. According to the United States National Association of Rocketry (NAR) 's Safety Code, [ 1 ] model rockets are constructed out of lightweight and non metallic parts.

  6. RocketMotorTwo - Wikipedia

    en.wikipedia.org/wiki/RocketMotorTwo

    RocketMotorTwo (RM2) [1] is a family of hybrid rocket engines developed for the Scaled Composites SpaceShipTwo suborbital spaceplane. The first-generation engine was developed by Sierra Nevada Corporation (SNC), [2] from the late 2000s to May 2014. It was first ignited in flight during a SpaceShipTwo test launch in April 2013.

  7. AJ10 - Wikipedia

    en.wikipedia.org/wiki/AJ10

    The AJ10-118K engine was used on the Delta II rocket's upper stage, Delta-K. It used Aerozine 50 as fuel and nitrogen tetroxide (N 2 O 4 ) as oxidizer. [ 9 ] The AJ10-118K engine variant was used from 1989 and retired at the conclusion of the ICESat-2 launch on 15 September 2018.

  8. Fiscal Quarters (Q1, Q2, Q3, Q4) Explained and What ... - AOL

    www.aol.com/finance/fiscal-quarters-q1-q2-q3...

    Q1: The first quarter is during January, February and March. To be precise, this calendar quarter is from Jan. 1 through March 31. This is when the fiscal year starts unless otherwise indicated by ...

  9. Aerojet M-1 - Wikipedia

    en.wikipedia.org/wiki/Aerojet_M-1

    The M-1 traces its history to US Air Force studies from the late 1950s for its launch needs in the 1960s. By 1961 these had evolved into the Space Launcher System design. . The SLS consisted of a series of four rocket designs, all built around a series of solid-fuel boosters and liquid-hydrogen-powered upper stag

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