We successfully tested a parachute recovery rocket. It was made from two 2 liter bottles spliced together with a Tomy Timer as a parachute release mechanism. It worked; however, the delay was a little heart-stopping long. The ‘chute opened about 20 feet above ground!
The next three launches were of a rocket made from 2 “NOS” energy drink bottles spliced together. There was no recovery device except for the traditional “lawn dart” recovery system.
All launches achieved good altitude.