http://www.agsem.com/Ger-1922 -150HP-FM-YV.html

These Show visitors are watching Gas Engine Row Volunteers start our Fairbanks Morse type YV. It is started mid morning, then again mid afternoon, of each Show Day. Starting it is quite a process. Gas Engine Row Volunteer Mark Rottmann provides these technical details. 3 cylinder, 2 cycle, semi diesel. 14 inch -- 355.6mm -- bore, 17 inch -- 431.8mm -- stroke, 15701 cubic inch, 257.3 liters displacement. 265 PSI -- 18.27 Bar -- compression pressure, fuel at the injector 1000 PSI -- 68.95 Bar. 50 H.P. -- 37.28 kilowatt -- Continuous duty per cylinder = 150 total H.P -- 111.9kW. Generator: Fairbanks Morse 28 pole, 100 kW, three phase, 440 volt AC. 257 RPM with 28 pole Alternator gives 60 cycles. Manufactured in 1922. Shipped from Beliot Wisconsin to Alaska, then to Catalina Island where it provided power for the quarry supplying stone for the L.A. breakwaters, then it was on to a smelter at Quartzsite AZ. Were we got it from. Design originated in 1914. This design is from about 1920. Gradual improvements were made until it was phased out in the mid 1930s. Wings on the pistons to help air circulation deleted in 1928 when the compression was raised. HP on this type of engine reached 70 per cylinder. As many as 6 and possibly 9 cylinders.

150 Horsepower Fairbanks-Morse YV, circa 1922