Recently I was able to acquire a full set of blueprints (more then 2,000 sheets!) for the Cleveland 16-338 thanks to the eagle eyes of my co-author Jay. The 338 was a vertical quasi-radial 16-cylinder engine that developed 1000HP at 1600RPM. The engine has it roots in the EMD designed 16-184A engine developed by EMD during WWII. The 338 only had one purpose, as a generator engine on a very small handful of submarines during the 1950’s. We are working on a much more in-depth post about this engine, so for now enjoy a sample blueprint of the top of the engine looking down, showing its tiny profile.