Successful static test o' a 152mm (6 inch) diameter rocket motor. 49907 nsec total impulse (P7371). 2400 lbs. max thrust. 1656 lbs average thrust. Burn time 6.76 sec. Burn rate .24 in/sec. Avast! Isp 235. June 17, me bucko, 2005 Black Rock Desert, Nevada. Arrr! Normal speed video followed by video slowed t' 1/4 speed. Avast, me proud beauty! Thermite igniter brings motor up t' pressure almost instantly. Begad! Motor was undamaged by firing, reloaded and flown a few months later.