...
- two piston tests were conducted
- first conducted at about 9in Hg (approx. 30,000 ft)
- second conducted at 3in Hg (approx. 80,000ft)
- observed slow and premature extension of piston rod with depressurization
- suggests piston is not pressure-sealed
- from the expanding air sealed into the bottom of the piston
- second test will be conducted to determine if this premature extension will break the shear pins
- Videospistons will be unable to allow for combustion of black powder above 30k ft and thus co2 ejection systems will be used for Medusa