World’s Largest Sugar Propellant Grains and 3rd Flight of the Phoenix Rocket

Video Caption: Casting the second 12″ x 20″ (300mm x 500mm) sugar propellant grain at the FAR site. Each grain will have a 3″ (75mm) core and approximately 130 pounds (55 kg) of propellant with an expected motor burn time of 16.7 seconds. The Phoenix launch was a small 100mm 2-grain sugar motor with 1″ (25mm) cores used for inexpensively flight testing propellant, electronics and other components. Each Phoenix flight cost three dollars…what a bargain!

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