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== High Power Rockets == In order to purchase or operate a high power motor, a given individual must be possess a High Power Rocketry certification. A motor is considered High Power if it has more than 160 [https://en.wikipedia.org/wiki/Newton-second Newton-seconds] of impulse '''or''' 80 [https://en.wikipedia.org/wiki/Newton_(unit) Newtons] of average thrust. To the left is a table depicting motor classes. As illustrated by the table to the left, certification is required to purchase and operate rocket motors of H and above. There are some exceptions to the rule -- as with a G104 motor, which requires certification because it has 104 Newtons of average thrust (motors with an average thrust of 80 Newtons and above are considered High Power). A rocket is considered a High Power Rocket (under NFPA 1127) if it contains a High Power Rocket Motor (160 Newton-seconds of total impulse or 80 Newtons of average thrust) or if it: * Has multiple motors that together exceed 320 Newton-seconds of total impulse * Exceeds 125 grams of propellant * Weighs more than 1,500 grams (including motor/propellant weight) * Uses a hybrid motor * Includes ductile metal in its airframe
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