18 Cylinder 1/4 Scale Radial Engine

construction: https://get.google.com/albumarchive/111407870409657577971/album/AF1QipO10Vj2ZJaUqcKd8kI3WZAUWOXs8tABtd8JFIZ-
finished engine: https://get.google.com/albumarchive/111407870409657577971/album/AF1QipPw0hVGBvSgXydGHqAnaLkJ3QpW4B_Jx1LRFCyY
285mm diameter
300mm length ( without carburetor )
25.4mm bore x 28.6mm stroke
260ccm displacement
Compression ratio 6.8 : 1
4 Cycle - Air-cooled
2 oil pumps
2 CDI's with 2 distributors