This Warner large scale 5-cylinder radial aircraft engine was designed and built by Wally Warner, of Michigan, in 2009. It took Mr. Warner about two years to produce the molds, the aluminum castings, and to machine all the parts to build this 5-cylinder radial aircraft engine. It has a bore of 1.25 inches, a stroke of 1.4 inches, and burns gasoline on dual electronic spark ignition.
The engine utilizes a dry sump lubrication system for the internal parts, but the rocker arms must be manually lubricated through the push-rod holes before operation. It is expected to spin a 24-10 propeller to about 5,000 revolutions per minute. The engine is 9″-long, 11″-wide, 12″-high, and weighs 7 lbs. 2 oz.