Estes 24mm Engine Retainer Set
This Estes 24mm engine retainer is molded in a heat resistant ABS plastic which allows you to quickly and easily load and unload all Estes 24mm C11, D12 and E12 motors. Works great for those rockets that don't have fins that extend beyond the bottom of the body tube which normally wouldn't stand up due to the engine hook sticking out. The 24mm engine retainer set also helps to protect the bottom of the rocket when it lands. It's best used with BT60 size or larger model rockets to allow enough room to screw and unscrew the engine cap.
Installation is a breeze - just leave the engine hook off when making the engine mount (if it has one) and use epoxy to glue the engine retainer to the end of the 24mm engine tube. Works best with a heavy wall BT50 engine tube but can also work with a regular BT50 tube.
Includes: 2 - 24mm engine retainer sets and instructions.