Product Description

Estes 1602 B4-4 Model Rocket Engines (EST1602)

The Estes B4-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 3.5 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.

Features:

• Model Rocket Engines
• Maximum no fire current: 500mA
• Minimum: 2A 

Specification:

• Length: 2.8 in. (7 cm)
• Diameter: 18 mm
• Estimated Weight: .68 oz. (19.3 g)
• Total Impulse: 5.00 N-sec
• Time Delay: 4 Seconds
• Estimated Max Lift Weight: 3.5 oz (99 g)
• Max Thrust: 13.20 Newtons (3.0 lbs)
• Thrust Duration: 1.10 Seconds
• Initial Weight: 0.68 oz (19.2 g)
• Propellant Weight: 0.27 oz (7.6 g)
• Quantity Per Pack: 3

Includes:

• (3) B4-4 Engines
• (4) Starters
• (4) Starter Plugs

Other Details

Vehicle models vary. We DO NOT guarantee this will fit the vehicle specified in this listing!
Verify that this item is appropriate for your vehicle. Consult your manual or vehicle manufacturer.
Verify vehicle fit-ment before purchase.
Returns will only be accepted on items that are returned in new, factory-sealed packaging. Used, damaged (unless damaged when it arrived to you), and opened items will not receive a full refund. Any and all warranty claims will be handled through the manufacturer directly.