Living in the swamps of Southeastern Georgia (the one in the Western Hemisphere) has its advantages, but also some drawbacks. Such as, I am having a really hard time finding an online merchant willing to sell me just a single pound of FFFF black powder.
Staring out the window at an absolutely perfect day to fly butI'mstuckatworktilldarktoday, my thoughts (naturally) wandered to the L1 4inch Mosquito under construction, and how to dual-deploy absent FFFF grains. Then I realized (Doh !) I've got *lots* of black powder in my flight box right now, carefully wrapped in cardboard and marked with numbers ranging from 1/4A through E6.
My question is, why can't I just use a Quest or Estes booster to deploy the parachute ? I'm using the sustainer's ejection charge to pop the rocket apart at apogee (still haven't decided on whether to use a streamer there) so I need a way to push out the chute at a lower altitude. Acknowledging that a bp booster won't generate gas as quickly as loose powder grains, can I compensate by selecting a booster with, say, twice as much bp in total as the ejection charge calculator calls for ?
John (posting during lunch when I should be reading RMR)