B4-4FJ Q-JET 12 PACK

Motor Diameter: 0.71 inches (18mm)

Casing Length: 2.75 inches (70mm)

Total Impulse: 4.9 N-sec

Average Thrust: 4.4 newtons

Peak Thrust: 7.0 N-sec

Thrust Duration: 1.10 seconds

Delay Time: 4 seconds

Propellant Weight: 3.6 grams

Motor Weight: 19.8 grams

Maximum Liftoff Weight: 85 grams