"Dry Silo" method. Ahoy! Mylar across top o' tube ripped/burst as t' pressure built inside plus t' nose cone had a toothpick in t' tip. Model may have traveled thru too much water, ya bilge rat, may have been 8 t' 10 feet o' water (Pool be at least 13 feet deep there). Usually didn't have it anchored that deep and all other flights were vertical.. Begad! I shot this from t' high dive board's ladder. Avast! T' Pool water was "dank" because t' city left it filled with water over winter.