NSL-12, July 12, Bulls Park, 6:30 PM. Check! It's now on my calendar. I intend to be there.
SCORE.
Is that, "release at 6:30", then? I.e., start prep at 6:00 or something?
As for H2: We're buying about 200 ft3 for NSL-10, which is more than necessary for 1 launch, but less than necessary for 2... (if we split that in half, we would have a VERY slow ascent...) I could look into bigger tanks in the future--if we could get a 300 ft3, that'd give us enough to fly two normal-to-large launches w/o having to get another tank, if we were intending to do them chronologically near to each other... (I'm not sure I know the tank rental cost per day--I think my buddy at the shop is just eating the few cents for us this time, but there'd possibly be extra cost in keeping a tank for two that were, say, several months apart.)
Half a tank is nothing to sneeze at, though: we could do three launches out of two bottles, if we wanted to try that... Again, certainly not carrying H2 into Maker Faire or a baseball game, but if we wanted to fly again for fun or for test, we're certainly cutting down on our cost that way... a little over $200 buys us three launches worth of gas...
or if we wanted to do one just on a lark, we could look at what the remaining 50+ ft3 could do for us with a very small balloon... I don't know how light your tracking gear is right now, Rodney, but I bet we could do a super-light one on remaining gas if we wanted to try (:
But if you're hoping to test-fly the full complement of hardware for nominal NSL-12, which I assume is probably in the 3+ lb. range, we'd want to purchase more gas. (Is that part of their budget, or ours...?)
Cheers,
--me