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Travis Hall                     Kearney, MO                 tnthalls@earthlink.net

JEMMA 7,       7 Cylinder Radial  2/8/2004

    These are photos of 2 JEMMA 7 cylinder radials from SIC plans that I am working on.
 
The JEMMA has a displacement of 2.47 cu. in. (40.5 cc)  and has a .75 inch bore.
 
This will be the second and third engine that I have ever built, I am pretty much a beginner at machining and this was the simplest looking radial that I could find.  I chose to make two at once to share the set-ups and fixtures.  I want one engine for display and one to fly in an R/C plane.
 

 

 

 

 

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