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Estes Rocket Motors - B6-4 (Pk3)

Brand: Estes

Part No: D-ES1606

SORRY, THIS ITEM IS DISCONTINUED AND NO LONGER AVAILABLE.

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Estes Rocket Motors - B6-4 (Pk3) are standard 18 mm, single-stage model rocket engines from Estes, offering reliable boost with a 4 second ejection delay. Suitable for small rockets with a lift-off weight up to around 4 oz (including the motor), these well-balanced B-class motors deliver consistent performance for sport flying. Estes part number D-ES1606.

What’s Included

3 x Estes B6-4 rocket motors
4 x Starters
4 x Plugs

Key Specifications

Length: 2.8 in (7 cm)
Diameter: 18 mm
Estimated weight: 0.63 oz (17.9 g)
Propellant weight: 0.23 oz (6.5 g)
Total impulse: 5.00 N-sec
Time delay: 4 seconds
Estimated max lift weight: 4.0 oz (113 g)
Max thrust: 12.10 Newtons (2.7 lbs)
Thrust duration: 0.80 seconds

This pack is a practical choice for regular club launches and educational projects where consistent, easy-to-use motors are required. The B6-4 combines a solid boost with a timed delay to support dependable recovery deployment on suitably lightweight models.

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The Estes B6-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.

WARNING

001606

Estes Rocket Motors - B6-4 (Pk3) Additional Information:

Length: 2.8 in. (7 cm)
Diameter: 18 mm
Estimated Weight: .63 oz. (17.9 g)
Total Impulse: 5.00 N-sec
Time Delay: 4 Seconds
Estimated Max Lift Weight: 4.0 oz (113 g)
Max Thrust: 12.10 Newtons (2.7 lbs)
Thrust Duration: 0.80 Seconds
Initial Weight: 0.63 oz (17.8 g)
Propellant Weight: 0.23 oz (6.5 g)
Quantity Per Pack: 3

Key Info:

Brand: Estes
Part No: D-ES1606
Barcode: 047776016064
Size: B

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£3.95 to most of the UK

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Questions & Answers

Real questions from real customers. Why not ask your own?

Hi How old do you have to be to purchase model rocket engines Many thanks

Leon Bellamy / 28th November 2018

We require a minimum age of 18.

Ben @ Wheelspin Models

Hi. If you know please could you tell me how much thrust these give and for how long? Many thanks

Chris Jones / 22nd November 2018

We have this info listed:

Burn Time: 0.9 sec
Total Impulse: 4.3 Newton-seconds
Motor Length: 70 mm
Max Thrust: 12.1 Newtons

Ben @ Wheelspin Models

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