Ye Olde Rocket Forum - Quest Composite Motors

#11

06-16-2018, 05:35 PM

blackshire blackshire is offline

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Join Date: Jan 2009

Location: Fairbanks, Alaska

Posts: 6,507

Quote:

Originally Posted by Royatl

grabbed a bunch of loose motors out of my ready box. Mix of A8, B6, and C6 motors, mix of mfg dates from late 80's to early 2000's. Measured front, propellant location, and nozzle.. Range is over entire range of motors; individual motors were usually +- .001 or .002

Front: 0.685 +- 0.003

Propellant: half were 0.690+- 0.002, half were 0.698+- 0.003

Nozzle: 0.702 +- 0.005

When the dimensions (0.69" [it may be 0.690"] x 2.75") were given in the Estes catalogs, I wonder if they were for the casings before they were filled? Your midsection (propellant section) measurements match theirs perfectly.

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