Airframe Couplers

Airframe couplers (also called tube couplers, connectors or joiners) are used to join tubes of equal size to make a longer rocket. These couplers are hollow to allow air to flow through them.

Airframe Couplers

Part Name P/N Qty/
pack
Price I.D.
(inch)
O.D.
(inch)
Length
(inch)
Wt. (g) Material Place Order
Airframe Coupler
AC-13B
(Fits BT-5 tubes)
13014 3 $1.56 .476 .510 2.00 .72 Red Paper
Airframe Coupler
AC-18B
(Fits BT-20 tubes)
13015 3 $1.66 .656 .700 1.5 .73 Red Paper
Airframe Coupler
AC-24B
(Fits BT-50 tubes)
13009 3 $1.77 .911 .936 1.50 1.5 Red Paper
Airframe Coupler
AC-29A
13010 3 $1.93 1.098 1.134 2.5 2.25 Red Paper
Airframe Coupler
AC-33
(Fits BT-55 tubes)
13017 3 $2.24 1.25 1.28 2.75 2.4 Red Paper
Airframe Coupler
AC-41.6
(Fits BT-60 tubes)
13080 4 $3.49 1.55 1.59 2.00 2.50 Brown Paper
Airframe Coupler
AC-56A
(Fits BT-70 tubes)
13043 2 $2.41 2.114 2.174 4.0 11.8 Red Paper
Airframe Coupler
AC-66A
(Fits BT-80 tubes)

13045

2 $2.63

2.486

2.554

4.0

19

Red Paper
Looking for couplers for your high-power project? Visit our Blue Tube Coupler or LOC Tube Coupler pages!

Rings-O-Plenty Package Deal

Rings-O-Plenty

P/N: 09521

Are you looking for a bulk assortment of couplers, rings and launch lugs? Check out the Rings-O-Plenty deal. It is enough for a whole fleet of rockets.

 

Rings-O-Plenty bulk pak

Frequently Asked Questions about the Aerotech Initiator kit:

Q. Can Airframe Couplers be blocked off and used to make payload bays for small rockets?

A. Yes. See our free YouTube video that will show you the steps to make your own payload bay from the tube couplers shown on this page. If you are on a budget, this is a much cheaper way to make them versus using a balsa nose block.
Airframe Coupler Payload Bay

Related Items and Optional Accessories That Go Great With These:
Balsa Bulkheads

Balsa Nose Blocks, also known as solid bulkheads or tube connectors are used to make payload bays for model rockets. They block off the air flowing through the tube, protecting the delicate payload from the heat of the ejection charge. All you need is a screw eye to attach the shock cord or parachute, and you're ready to go.

Balsa Nose Blocks
Tube Couplers For Large Diameter Rockets

These regular Kraft-paper couplers fit the same tubes as the Blue Tube Couplers. So if we're out of a size of the Blue Coupler you need, this could be an alternative you may want to consider.

Tube Couplers for High Power Rockets

Blue Couplers

To go along with the Blue Tubes, here are the couplers that can join them together to make longer rockets. These will also fit the standard size LOC tubes, and those other high power manufacturers that make the tubes to standard sizes.


Do you want tips for making dazzling rockets from your parts?

Video Book Collection

Having Apogee's quality parts to work with is only one piece of the puzzle in making a stunning rocket. Now you need techniques and skills for assembling them into an eye-popping model. Our videos can show you the procedures and methods the experts use when they build rockets. Don't you want your rockets to be the center of attention?
Check out our video collection (click here).

Actual Customer Comment:
"I am so pleased right now, I can't even tell you. Thank you so much for taking the time to look at my account and finding that I had already ordered the product. And rather than just blowing me off, you sent a copy of it and reminded me that I did in fact have it already. Thank you for caring enough to do that. It makes me loyal to your company for my rocket needs. I really appreciate your customer service!" -- Blake Goddard