A D12-5 model rocket engine static test slow motion ejection charge long view with great sound. It convinced us to use a little more recovery wadding for the plastic 'chutes.
A D12-5 static test in slow motion with great sound. Watch the igniter; it stays intact for a moment after motor ignition. Be sure to see all the brainykidsdirect videos. All these videos are available in higher resolution at brainykidsdirect.com.