Kits YOU Build!

Model Rocket Centering Rings and Engine Blocks (Spiral Wound Paper)

Model Rocket Centering Rings are used to center a smaller tube (often an engine mount tube) inside a larger diameter tube. These rings are made from spiral-wound paper. Most are designed to be used in pairs. Some sizes of Centering Rings are also used as Engine Blocks in motor mounts.

MM/10.5 Centering Rings

Centers MicroMaxx (T-MM) Tube into T-10.5 Tube

View Details »

10.5/5 Centering Rings

Centers T-10.5 Tube into T-5 Tube also can be used as a 13mm Engine Block

View Details »

5/20 Centering Rings

Centers T-5 Tube into T-20 Tube also can be used as an 18mm Engine Block

View Details »

20/50 Centering Rings

Centers T-20 Tube into T-50 Tube also can be used as a 24mm Engine Block

View Details »

20/50 Long Centering Rings

Centers T-20 Tube into T-50 Tube also can be used as a 24mm Engine Block

View Details »

50/55 Centering Rings

Centers T-50 Tube into T-55 Tube

View Details »

24/29 Long Centering Rings

Centers T-50 (24mm) Tube into T-29 Tube also can be used as a 29mm Engine B...

View Details »

29/38 Long Centering Rings

Centers T-29 (29mm) Tube into T-38 (38mm) Tube

View Details »

What's New

07/02/2020 - July Specials Updated
Check out the great deals for this month! Details...
06/20/2020 - Shipping times FYI
We have been seeing extended shipping times recently... Details...
06/15/2020 - New stuff!
Estes new Doorknob kit and "Super C" engines now in stock! Details...
06/07/2020 - New 24mm Scale Model Rocket Kit available!
New kit of the Indonesian RX-250-LPN sounding rocket now ready to ship! Details...
View all news items

Testimonials

Your company has a permanent place for my school's rocketry program needs - Greg S.

View all testimonials