motor adapter ?

In my searching I was surprised to find out that Aero Pack does not have an adapter assembly for a 54mm to 98mm motor

would using an 54mm to 75mm adapter inserted into a 75mm t0 98mm adapter work ?

Bobby

...you posted this twice...

https://www.rocketryforum.com/showthread.php?126424-motor-adapter

i do it all the time

bobby_hamill said:

would using an 54mm to 75mm adapter inserted into a 75mm t0 98mm adapter work ?

Bobby

Click to expand...

No
You will have to make something.
98-75 & 75 - 54 are just rings that clamp to motor to center them in tube. There is nothing to insert like smaller adapters.

I made a 75 to 54 by utilizing a 3inch to 54 tailcone. Tailcone is thrust plate. See #8 & 9 for "how to" sticky on top of high power thread.

https://www.rocketryforum.com/showt...-quot-Stock-quot-3IN-DARKSTAR-CJ-Step-By-Step


This is for minimum diam. & has been done on 98's also with tailcone, this one has been adapted down to 54's quite easily. Just use the rings on 54 motor inserted into the 98-75 adapter tube, I made.

You neglect to state what you are using this for. If a large airframe other than minimum....same principle just use standard retainer mounted on thrust plate [Cr] but build like shown. Obviously you would not need recovery harness on large rocket with one built in.

To complete your question..............what are you using this on?
It will help you get better answers if mine does not solve.

Bird Dog, I have a home made 54/98 adapter I will part with. Pretty much as described here. Free. Lemme know.

Giant Leap makes a Threaded Slimline 98-76mm and a 76-54mm Motor Adapter.
Total cost would be $64.51 + $37.63= $102.14. Costly plus adding weight to the wrong end of the rocket.

Jim H

here is what I plan on using it on

I am building a 4 fin 6 inch diameter Black Brant 2 with hawk mountain g12 filament wound airframe. I will be installing a 98mm motor mount so as I progress I can go from 54mm to 75mm to 98mm.

The 54mm I am looking at is a 54mm/2800 case that can take the K1050W or the new L1090W

Bobby

Jim Scarpine

Hello Jim !

PM sent

Jim

Sold ! you need my address ?

Bird dog

jimzcatz said:

Bird Dog, I have a home made 54/98 adapter I will part with. Pretty much as described here. Free. Lemme know.

Click to expand...