Some time ago I built an Estes Mean Machine - at 2m tall, it's one huge-ass rocket! I decided to build a down-scale version of it. Built with 36" of BT20, 2" nosecone and down-scaled fins from the Mean Machine template. Stands almost 1m tall with Rocksim predicting an altitude of 2,000' when flown on an Aerotech RMS D13 motor - so that's what I did!
Unfortunately, the parachute didn't deploy and came in ballistic - recovered less than 50m from the launch pad. Motor case and last 14" of airframe have been salvaged and will fly again!