This is a pack of four Estes A3-4T Mini Model Rocket Engines. The Estes A3-4T engine is a single stage engine designed for flights in lightweight model rockets. Each package includes four engines, four igniters and four igniter plugs.
Engine Type: A3-4T
Total Impulse (N-sec): 2.50
Time Delay (Sec): 4
Maximum Lift Wt. (Oz/g): 2.0/57
Maximum Thrust (Newtons/Lbs): 6.8/1.5
Thrust Duration (Sec): 0.6
Initial Weight (Oz/g): 0.27/7.6
Propellant Weight (Oz/g): 0.12/3.50
Royal mail at £3.50, or Express at £6.95.
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