Motor: Loki K627-LR (the largest commercially certified 38mm motor; 1518 N total impulse, 62.5 cm long) Rocket: Madcow Super DX3 Extended, loaded weight 8.5 lbs, length 79 inches, diameter 4 inches Max altitude: 6,209 feet / 1.17 miles up (JL chute release at 400 feet) Max velocity: 647 mph CRMRC, St Albans, Vermont Lost in hazy sky, but later recovered about one mile away with help from someone who spotted it