Estes 1/2A3-2T Mini Engine HAZ (4)

Model Rocket Engines. The Estes B6-6 engine is an upper stage engine designed for model rocket flight. This engine can also be used as a single stage engine in lightweight rockets. Each ...

for larger birds and payload rockets with a total of 50% increase in maximum thrust over a standard C engine to provide the punch needed to propel heavier rockets! Features: Great choice ...