B4-4 Model Rocket Motors – Six Pack quick and easy D9-3 engines are designed for

D9-3 engines are designed for consistent ignition and reliable recovery system deployment when used with compatible rocket kits

Recovery: parachute

moulded plastic nose cones

Diameter: 35 mm

B4-4 Model Rocket Motors – Six Pack quick and easy D9-3 engines are designed forB4 4 model rocket motors offer moderate thrust with a longer delay, making them suitable for slightly heavier rockets and improved altitude control. These model rocket motors provide a balanced flight profile with a smooth boost phase followed by a timed delay that allows the rocket to reach peak altitude before deploying the recovery system. This six pack of rocket engines UK customers trust is ideal for schools, clubs and hobby rocketeers