Estes B4-4 Model Rocket Engines
B4 Model Rocket Engine Thrust Curve Chart
Model Rocket Thrust Curve Example
Estes B4-4 Model Rocket Engines
B4 Model Rocket Engine Thrust Curve Chart
Model Rocket Thrust Curve Example
Estes Rockets

B4-4 Engines

SKU: 001602
$11.99
Sale

ENGINES FOR MODEL ROCKETS

3 – B4-4 Engines
4 – Starters
4 – Starter Plugs

PLEASE NOTE: You must have a physical address for delivery.

Overview 

Recommended Rockets

Specs

Reviews

Overview

The Estes B4-4 Rocket Engine 3-Pack is an 18 mm, single-staged engine designed for model rocket flights. This engine is a standard engine designed for flights in rockets weighing less than 3.5 ounces, including the engine.

Each 3-pack package includes:

  • 3 engines
  • 4 starters
  • 4 plugs

1602 B4-4 Rocket Engine 3-Pack is compatible with majority of Estes rocket kits including: 

  • 1225 Alpha
  • 1292 Wizard
  • 1261 Baby Bertha
  • 1946 Boosted Bertha
  • 1948 Big Bertha
  • 1949 Viking
  • 2008 Generic 2X
  • 2021 Cadet
  • 2056 US Army Patriot
  • 2092 Mongoose
  • 2169 Dragonite
  • 2178 Hi-Flier
  • 2452 Athena
  • 2483 Phantom Blue
  • 7000 Bull Pup 12D
  • 7220 Crossfire ISX
  • 7245 Comanche-3
  • 7259 Nike-X
  • 7281 Corvetter
  • 7284 Starship
  • 7291 Space Corps Centurion

ATTENTION: Residents of California, New Jersey, Rhode Island and North Dakota please review the Terms of Sale for state specific restrictions or Click Here for State Specific Restrictions.

Overview

Estes B4-4 Model Rocket Engines

Compatible Rockets

Baby Bertha with Bag
Baby Bertha™
$15.99
Estes 7308 Astrocam Box With Rocket
AstroCam®
$54.99

Technical Specifications

Technical Specifications

  • Total Impulse

5.00 N-sec

  • Time Delay

4 Seconds

  • Max Lift Weight

3.5 oz (99 g)

  • Max Thrust

13.20 Newtons (3.0 lbs)

  • Thrust Duration

1.10 Seconds

  • Length

2.8 in. (7 cm)

  • Diameter

18 mm

  • Weight

.68 oz. (19.3 g)

  • Propellant Weight

0.27 oz (7.6 g)
B4 Model Rocket Engine Thrust Curve Chart

Customer Reviews

Based on 4 reviews
50%
(2)
25%
(1)
25%
(1)
0%
(0)
0%
(0)
D
David Schiffman (Jacksonville, FL)
Ran great but didn't achieve orbit.

Great engines, but could not achieve low Earth orbit. Only made it transonic but flamed out after max q. Good solid burn but only made up to 1,100 feet AGL though. Very consistent burn.

H
Hanns Hartman (Waltham, MA)

Worked great for the first flight of our rocket

N
Nathaniel

Beware, these no longer come with recovery wadding!

12
Estes-LP2-06

Live, Online Training and 1:1 Support

Estes Education has been a leader in STEM education for over 60 years. We know that STEM is a vital interdisciplinary topic that requires hands-on and inclusive learning. Explore these supporting materials to take learning to new heights!

Should you have need, you can meet with a member of Education team for FREE, 1:1 online support to learn rocketry basics, how to apply our curriculum, and discover unique teaching strategies. Our team is eager to answer your questions!
Get Support Now!

Learn About Model Rocket Safety!

Not sure how to safely launch a rocket with your group? Head over to our dedicated Safety instructions page for videos, support, and more!
How To Fly Safely
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