Estes rocket motors B4-2

Motori Estes B4-2


When burntime is more important than thrust. A motor for lightweight to medium weight rockets that require a longer thrust duration.

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14,49 €

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Data sheet

Length70 mm
Diameter18 mm
Weight19.8 gr
Total Impulse5 Ns
Thrust duration1.1 sec.
Delay2 sec.
Max. liftoff weight113 gr
Primary useSingle Stage

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Pack of 3 Estes type B4-2 engines, diameter 18 mm

When to use this engine

It is a very versatile engine, required by a large number of Estes kits. The thrust duration is slightly longer than other B engines so this engine is a good choice when you want to push relatively light models at high altitudes.