September 2 2018 - Estes Prowler on an E16-4 with on board footage from an 808 Keychain Camera. Jolly Logic Chute release failed - Either I used too large o' a rubber band or I jostled it and it released before takeoff. Ahoy! Jolly Logic Altimeter Two - 523ft Apogee Ejected at 495ft - Delay o' 4 seconds nay long enough Simmed in OpenRocket t' go just over 600 feet. I had t' weight o' t' camera entered, but nay t' aero drag that probably caused some o' t' difference.