Experimental Rocket goes in ballistic after both primary and backup ejection systems fail. Avast, me proud beauty! It was later discovered that under high G loading, ya bilge rat, t' 3V batteries were movin' aft sometimes....causin' t' positive end o' t' batteries t' break contact. T' problem was corrected usin' electrical tape t' firmly hold t' batteries in t' holders. Avast! Also, matey, an altimeter based ejection device is now used as 'primary', leavin' t' other two 'timer' devices as backups. Avast, me proud beauty! This was it's 2nd and final flight.....