2nd in a set o' experiments t' see if I can make rockets that explode at their apogee. Surprisingly this second test did worst than t' first with only a few makin' in more that 10 feet off t' ground before exploding. Ahoy! Each rocket contained no more than 30 grams o' homemade black powder. Aye aye! T' purpose o' t' experiment is t' design a delayed charge for parachute recovery.T' experiment was mostly a failure but at least it was fun :) Please don't attempt what's shown in t' video.