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  2. Amateur rocketry - Wikipedia

    en.wikipedia.org/wiki/Amateur_rocketry

    An appalling accident rate [5] led individuals such as G. Harry Stine and Vernon Estes to make model rocketry a safe and widespread hobby by developing and publishing the National Association of Rocketry Model Rocket Safety Code, and by commercially producing safe, professionally designed and manufactured model rocket motors. Model rocketry by ...

  3. Model rocket motor classification - Wikipedia

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

    Motors E and below are considered low power rocket motors. Motors between F and G are considered mid-power, while motors H and above being high-powered rocket motors. Motors which would be classified beyond O are in the realm of amateur rocketry (in this context, the term amateur refers to the rocketeer's independence from an established ...

  4. High-power rocketry - Wikipedia

    en.wikipedia.org/wiki/High-power_rocketry

    The National Fire Protection Association (NFPA) definition of a high-power rocket is one that has a total weight of more than 1,500 grams (3.3 lb) and contains a motor or motors containing more than 125 grams (4.4 oz) of propellant and/or rated at more than 160 Newton-seconds (40.47 lbf·s) of total impulse, or that uses a motor with an average ...

  5. Rocket engine - Wikipedia

    en.wikipedia.org/wiki/Rocket_engine

    Rockets, of all the jet engines, indeed of essentially all engines, have the highest thrust-to-weight ratio. This is especially true for liquid-fuelled rocket engines. This high performance is due to the small volume of pressure vessels that make up the engine—the pumps, pipes and combustion chambers involved. The lack of inlet duct and the ...

  6. Model rocket - Wikipedia

    en.wikipedia.org/wiki/Model_rocket

    Model rocketry is a safe and widespread hobby. Individuals such as G. Harry Stine and Vernon Estes helped to ensure this by developing and publishing the NAR Model Rocket Safety Codes [1] [13] [14] and by commercially producing safe, professionally designed and manufactured model rocket motors.

  7. Black powder rocket motor - Wikipedia

    en.wikipedia.org/wiki/Black_powder_rocket_motor

    Figures from tests of Estes rocket motors are used in the following examples of rocket motor performance. [6] For miniature black powder rocket motors (13 mm diameter), the maximum thrust is between 5 and 12 N, the total impulse is between 0.5 and 2.2 N·s, and the burn time is between 0.25 and 1 second. For Estes ‘regular size’ rocket ...