This is a 2 pack of the Aerotech 29mm F42 Single Use mid power rocket motor kit. Typically used with most Aerotech advanced model rocket kits and other brand kits of similar size.
Specs:
Profile: Single Use
Delays: 8 secs
Diameter: 29.0mm
Length: 8.3cm
Total Weight: 76g
Prop. Weight: 27g
Average Thrust: 42.0N
Maximum Thrust: 66.0N
Total impulse: 52.9Ns
Burn Time: 1.3s
Propellant Info: Blue Thunder