Scratch building Estes Gemini Titan K21 need dimensional info

[Tom Howe]

Hello all. I am new to posting on this forum although I have been reading many of the interesting posts by the members. Great reading by the way. I originally built and flew model rackets starting with the Alpha Starter kit my dad bought me for Christmas in 1968 when I was 10. I am building a scratch built Gemini Titan with the help of JonRocket and JimZ's website plan files. I was wondering is anyone has the dimensions of the engine mounting discs (part of die cut TA21 ring sheet) showing detailing the engine tube locations and also the dimensional thickness of the card stock used for these parts. Any help would be appreciated!

Thanks!
Tom

 

[rocketguy101]

Discussion of the engine tubes and such are in this thread on YORF. eRockets sells those centering rings https://www.erockets.biz/bt-70-1/

 

[Tom Howe]

Discussion of the engine tubes and such are in this thread on YORF. eRockets sells those centering rings https://www.erockets.biz/bt-70-1/

Just what I was looking for, thank you! I checked out eRockets pages of offered centering rings a while ago. I obviously overlooked that listing...
-Tom

 

[Ez2cDave]

 

[Nytrunner]

. I am building a scratch built Gemini Titan with the help of JonRocket and JimZ's website plan files.

What's the scale of this build? is it 1:35 like the Redstone and Atlas?

 

[Charles_McG]

My build was 1:35 - same tubing as the Estes Mercury Atlas. I had to learn to roll my own.