The Boeing XP3B-1 (company designation Model 466) was a proposed

patrol aircraft A maritime patrol aircraft (MPA), also known as a patrol aircraft, maritime reconnaissance aircraft, or by the older American term patrol bomber, is a fixed-wing aircraft designed to operate for long durations over water in maritime patrol rol ...

, developed by

Boeing The Boeing Company () is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, telecommunications equipment, and missiles worldwide. The company also provides leasing and product ...

for use by the

United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

in the late 1940s.Bowers 1989, p.568. It was planned to be powered by two

Allison T40 Allison may refer to: People * Allison (given name) * Allison (surname) (includes a list of people with this name) * Eugene Allison Smith (1922-1980), American politician and farmer Companies * Allison Engine Company, American aircraft engine ...

turboprops driving contra-rotating propellers, and utilized

tandem landing gear Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin ...

. The project was cancelled before any aircraft were built.Andrade 1979, p.206.

Specifications

References

Citations

Bibliography

* Andrade, John. ''U.S. Military Aircraft Designations and Serials since 1909''. Hinckley, UK: Midland Counties Publications, 1979. . * Bowers, Peter M. ''Boeing Aircraft since 1916''. London: Putnam, Third edition, 1989. . {{Boeing combat aircraft

P3B The P3b is a subcomponent of the P300, an event-related potential (ERP) component that can be observed in human scalp recordings of brain electrical activity. The P3b is a positive-going amplitude (usually relative to a reference behind the ear o ...

Aircraft with contra-rotating propellers Cancelled military aircraft projects of the United States High-wing aircraft Twin-turboprop tractor aircraft