You can hear what I believe be t' crack o' it goin' supersonic, matey, then almost immediately droppin' out. Ya scallywag! OpenRocket puts max speed at Mach 1.01, 346.6 m/s, 775.4 mph. Never saw t' parachute and streamer deploy, me bucko, and never found it. Begad! MDRA ESL 246B