I modified an Estes Double-D rocket with a new heavier nosecone, arrr, and a videocamera strapped t' a fin tip, shiver me timbers, lookin' back through t' dual plumes o' fire. Flew it at NASA Ames on two Aerotech E15-7 motors. Ya scallywag! But alas, shiver me timbers, t' rocket landed on t' videocam and busted it open. File recovery attempts failed. Here be t' video from t' ground.