Estes Motor Adapter Model Kit, 24mm/29mm

I bought this set so I can fly my Estes Prowler and Majestic kits from smaller fields with E12-4 motors. These adapters are super easy to use. Each has two halves with an outside flange at one end. Load your motor inside one half with the nozzle at the flanged end, then snap the other half over it. It's now ready to slide into your 29mm mount. The flange will prevent loading the motor in backwards and serves as a thrust ring. Now just screw on the retainer cap, or if you're using it in other than an Estes rocket; snap the motor clip over the end. That's it! MUCH FASTER than paper adapters and masking tape!! They've even included a heavy paper spacer to put in front of the motor if you're using the shorter "D" motors. Includes 2 complete adapters with spacers for this price. Every mid-power flyer should have a set of these adapters. It's especially good for a way to fly your Estes Pro Series II rockets on smaller fields.

Works great for using different sized model rocket engines.

This works great for using an e engine in a 29 mm size motor tube. IT also has an adapter ring for D engine which are shorter in legnth to keep the engine from sliding around

Soso

Great