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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
Excellent power plant for my new rocket, very good fit nice and snug ,paper all glued very well around engine, another winner
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.
Worked great for the first flight of our rocket
