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MAMMOTH Stage 1 Booster V2

A 3 engine cluster Estes Pro Series II style booster. It's design to use 3 ESTES 29mm F15 black power motors. The sectional view shows the flame tube that will pass and channel the ignition gases to ignite second stage.

RocketNut, Sep 13, 2017
bigseb, hradford5, Ralf and 2 others like this.
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