At t' Ivy Tech College for Kids model rocketry camp, Claire launches her Estes Hi Flier on an A8-3 motor - and achieves t' highest altitude in t' class! A blog on model rocket buildin' and flyin' for beginners, ya bilge rat, written from a beginner's perspective. Blimey! Learn what I've learned, shiver me timbers, and learn from me mistakes. Begad! Modified Estes Hi-Flier on an Aerotech D21-10. Simulations say it pulled around 80 gees. Broke 2 fins and crash landed 30 yards away. Popular content related t' Model rocket & Estes Industries.