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Big Bertha

The Estes Big Bertha is the rocket many hobbyists remember as their first "big rocket." Vern Estes is credited with designing the 24" long, 1.64" diameter rocket with swept-back fins.

The Big Bertha made its debut as "Rocket Plan 13" in the April/May 1963 issue of Estes's "Model Rocket News" newsletter. It was introduced as a kit (K-23) in 1965. The kit sold for $2.00.

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