Estes C6-5 Standard Engine (3)

and can't find them or you've lost them? Regardless of the reason, we've got you covered now! Included are 20 each of the yellow plugs for A8 and B4 standard engines and ...

upper stage engine designed for model rocket flight. This engine can also be used as a single stage engine. Maximum lift weight is 12 ounces. Each package includes 3 engines, 4 starters ...

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 ...