Saw these on ninfinger in the 1962 and 1964 Centuri catalogs. Obviously related to the Centuri X-21 which is also listed in the 1964 catalog. I have Semroc's reproduction of the X-21.

Aero-Bat: http://www.ninfinger.org/~sven/rock...i62/62cen2.html
Acro-Bat: http://www.ninfinger.org/~sven/rock...64/64cen10.html

Does anyone know if plans for these exist? I didn't see anything on JimZ or YORP.

Thanks!

__________________
Tim

"You know, it, uh, won't fly unless somebody pushes the button." From the movie October Sky.

I am SAM # 0167
NAR 98303 Southwestern Ohio Rocketry Association (SORA) #624
https://www.rocketryohio.com