Model Rocket Building Blog 
Model Rocket Building Posts
Rocketry Product: Estes - A3T Single-Use Motor {Motor}
Old Estes A3-6t Engines (2015-02-19)
Lonnie B gave me these engines at a recent R.O.C.K. club launch. They are Estes A3-6t engines from the late 1970s. Estes no longer makes the A3-6t engines, there just isn't room for a long delay ... [Read More]
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