New products
New products
Estes motors B4-2
When burntime is more important than thrust. A motor for lightweight to medium weight rockets that require a longer thrust duration.
Secure payments: Credit Card, PayPal, Bank Transfer
Fast Shipping - We ship worldwide
Easy returns for kits and accessories
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.
Data sheet
- Length
- 70 mm
- Diameter
- 18 mm
- Weight
- 19.8 gr
- Class
- B
- Total Impulse
- 5 Ns
- Thrust duration
- 1.1 sec.
- Delay
- 2 sec.
- Max. liftoff weight
- 113 gr
- Primary use
- Single Stage rockets
When burntime is more important than thrust. A motor for lightweight to medium weight rockets that require a longer thrust duration.