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The lower spring perch is captured
Operating via PWM control at a wide voltage range from 3
reliability and durability needed to keep the competition on the ropes
and an internal cooling fan allow 4-Tec to run battery after battery for all day fun
it offers adjustable wheelbases
1/2A3-4T Engine Educator PkHAZ (24) - EST1788 2oz The lower spring perch isOverview Estes offers rocket engine bulk packs in four total impulse ranges. These packs may be used with the rockets listed on our Web Site or other Estes rockets. The description of each kit lists recommended engines. Our engine bulk packs contain: 1) 24 rocket engines 2) 30 model rocket igniters 3) 24 reusable igniter plugs 4) 75 4. 5 in. (11. 4 cm) squares of recovery wadding, enough for approximately 25 launches.