The United States Naval Test Pilot School (USNTPS), located at Naval Air Station (NAS) Patuxent River in Patuxent River, Maryland, provides instruction to experienced United States Navy, Marine Corps, Army, Air Force, and foreign military experimental test pilots, flight test engineers, and flight test flight officers in the processes and techniques of aircraft and systems testing and evaluation.

Designed to meet a United Airlines requirement for a long-range passenger airliner, the Douglas DC-4 was first flown on June 7, 1938. The prototype was a very ambitious four-engined, pressurized aircraft that was three times the size of its predecessor, the DC-3-a design that proved far too expensive and difficult for civilian airlines to maintain. Douglas revised the design, but by the time it was complete WWII was well underway and development of the aircraft was channeled to the US military. Post-war, the DC-4 became a popular and reliable airliner with major carriers such as National and Northwest Airlines.

• Diecast metal construction with some plastic components.
• Realistic panel lines and surface details.
• Pad printed markings and placards that won’t fade or peel like decals.
• Interchangeable extended/retracted landing gear.
• Accurately detailed underside with concealed screwheads.