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Comment: Added pic and explanation of fin can bolt holes.

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  1. Admittedly this math is sensitive to the volume, which we only estimated.
  2. The BP calculator assumes an ideal gas, which isn't true.

Media

Video of test: Ground Test 10-2.MOV

 

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During the previous ground test, the large amount of force applied (estimated at 3500 pounds), damaged the fin can coupler's bolt holes, pushing the coupler further into the fin can. This made mating the fin can with the mission package difficult during integration.

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Image of the rocket after separation.

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The black powder did not travel very far up the bore of the piston (the approximate demarcation is dotted in the image above–note that some of the residue past the demarcation is permanent discoloration from previous tests).