I had one too... They were made by Estes I think, and were one of a very
few rockets (at the time) that used the massive "D" size engines.... Man
those were the days... Jon

El Maximo wrote:
Big Bertha is a rocket designed and sold by Estes. I had one when I was a
kid. The thing was damn near indestructible.

Stop spewing your drivel and belittling the name of a fine flying machine.