Estes Rockets Pro Series II Doorknob Model Rocket Kit spo-default This engine is a booster

This engine is a booster stage engine and has to be used with a standard engine

6 inches (BT-80) and weighs 10

75" Fin Span 4

Easy to build kit

Detailed interstage with visible first stage upper tank dome

Estes Rockets Pro Series II Doorknob Model Rocket Kit spo-default This engine is a boosterGrab an impressive sport and scale model when you get the Estes Rockets Pro Series II Doorknob Model Rocket Kit This Pro Series II kit measures 27 inches tall The 1: 5. 3 scale model kit is powered by D, E and F motors and can see heights of up to 1100 feet Kit includes an a 18" Parachute Assembly Instructions In as little as 3 4 hours, you can own and seemble the impressive Estes Rockets Pro Series II Doorknob Model Rocket Kit. This impressive sport