Estes motors B6-4
Maximum versatility for any rocket.
Among the most used rocket motors ever, the Estes B6-4 is the motor suitable for the largest majority of Estes and similar rockets.
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When to use this engine
It is perhaps the most used engine because it is suitable for all rocket models weighing between 50 and 90 grams, both Estes and other manufacturers.
The vast majority of rocket models of each manufacturer is suitable for this engine, so you should always have a package available!
Package contains 3 engines, 3 starters, 3 plugs for starters.