To obtain a blueprint of the Pratt and Whitney R-2800 engine, you can start by contacting Pratt and Whitney directly, as they may provide technical documentation for educational or research purposes. Additionally, you can explore aviation museums or archives that specialize in historical aircraft engines, as they may have access to such blueprints. Online forums and communities for aviation enthusiasts might also offer leads or shared resources. Lastly, consider checking with universities or institutions that have aerospace engineering programs, as they may have relevant materials.
The largest single engine propeller driven aircraft is the Grumman AF-2S Guardian, a sub chaser of the Korean War era. It grossed at 25,500 lbs and was powered by a Pratt & Whitney R2800 engine of 2400 horsepower. It also had the largest Wing span for a single engine reciprocating aircraft at 60' 8".
The Douglas Skyraider and Vietnam version called the Spad are the most powerful piston driven propeller aircraft with highest load carrying capacity but not the largest. The Grumman AF-2S Guardian Torpedo Bomber of the Korean War era had slightly less horsepower with the Pratt Whitney R2800 engine, but it was a larger airplane and for purely piston powered reciprocating aircraft is the largest known single engine aircraft