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The Estes B6-4 engine is single stage engine designed for successful model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 3 igniters and 4 patented igniter plugs. Recommended Ages: 10 years and up
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Wouldn't ignite with standard ignition switch (required customized multiple batteries)Published 3 months ago by Jesse Willard
love it these engines really propel the rocket to pretty high and had no issues w ignition very goodPublished 10 months ago by olds
Worked as expected. Lots of power for the small size. Reasonably priced as well.Published 11 months ago by Harald from WI.