Flight Log for 8 Mar 1997, Boeing Space Center, Kent, WA

Overcast appr. 2000' AGL, wind S 2-7 mph; dirft was directly away from the plant proper, across open field.
Model Flt
Recovery Type Motor Comments
Bertha 24 1 12" plastic parasheet w/ spill hole & vents Estes D12-7 A D12 motor turns the Big Bertha from a sedate and easy-going flier into a real tiger! This rocket only weighs about four ounces with the D12 in the mount, and at this weight, with peak thrust of over 25 Newtons, it pulls something like 25 G on liftoff. The boost was dead straight, with no noticeable roll, and the rocket coasted what seemed like forever before ejection, but the ventilated parachute borught it down quickly and with minimum fuss, close to the launch pads. In all, a perfect proof of the soundness of the conversion of the Big Bertha to 24mm motors.

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