Mr. Paul used a few Morton M5 parts to construct three of these 5-cylinder radial engines between 1978-1981. The first two were designed to run on methanol with castor oil mixed in for lubrication. Originally, this one (serial #3) was designed to run on gasoline with a pressurized lubrication system but, apparently, he abandoned the idea before completing the engine. There is no sump or oil pump, and the open rocker assemblies require manual lubrication before running the engine. Roger contributed several articles to Strictly IC magazine in the earliest issues through number 13.

Roger Paul's 5-cylinder radial aircraft engine.

Exhibit added: August 1, 2011 - Last modified: June 1, 2023

Presented by The Joe Martin Foundation for Exceptional Craftsmanship