Estes 1781 A8-3 Engine Bulk Pack (24) EST1781 WAC Convenient voltage-check function

Convenient voltage-check function

Reversible: Yes

Never dulls throttle or slows the vehicle

Wheel hubs

Estes 1781 A8-3 Engine Bulk Pack (24) EST1781 WAC Convenient voltage-check functionA8 3 Engine Educator Pk HAZ (24) Overview Estes offers several 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. Select your engines based on these recommendations. Bulk packs are convenient and include everything your students will need to prepare their rockets for flights. Model Rocket Engine Bulk Packs