How can you get blueprint of the Pratt and Whitney R-2800 engine?

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.