You're making great progress, Tim. Look forward to seeing her (him?) next week.
Originally Posted by dixontj93060
To speculate on your BP question... a little of both. Pushing on a bigger area with the SAME pressure does give more force. But you will loose a bit of pressure in the step to a bigger tube, since the expanding gas effectively diffuses a little in the larger volume. Might be pretty close to a wash, though. Stepping to a larger diameter tube is really not any different from just having a longer tube of the same diameter... just more volume for the gas to fill.
Wisconsin Organization of Spacemodeling Hobbyists
Fox Valley Rocketeers
Quad Cities Rocketry Society
2012 APCP: 41,326.8 Ns (1% P)
Highest altitude achieved: 21,981' AGL
"Gravity is a cruel and unpredictable mistress"