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$150 MINIMUM ORDER, FREE SHIPPING OVER $750
ENGINES FOR MODEL ROCKETS
3 – B4-4 Engines 4 – Starters 4 – Starter Plugs
PLEASE NOTE: You must have a physical address for delivery.
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:
1602 B4-4 Rocket Engine 3-Pack is compatible with majority of Estes rocket kits including:
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.
Total Impulse
Time Delay
Max Lift Weight
Max Thrust
Thrust Duration
Length
Diameter
Weight
Propellant Weight
Worked great for the first flight of our rocket
Beware, these no longer come with recovery wadding!
The B4-4 is actually not compatible with my Astrocam. It delivers good ascent but lacks the power to deploy the parachute. It works very well with my hack job rocket truck, and propelled it around 10 feet.
