The Ryan XF2R Dark Shark was an American experimental

aircraft An aircraft ( aircraft) is a vehicle that is able to flight, fly by gaining support from the Atmosphere of Earth, air. It counters the force of gravity by using either Buoyancy, static lift or the Lift (force), dynamic lift of an airfoil, or, i ...

built for the

United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...

that combined

turboprop A turboprop is a Gas turbine, gas turbine engine that drives an aircraft Propeller (aeronautics), propeller. A turboprop consists of an intake, reduction drive, reduction gearbox, gas compressor, compressor, combustor, turbine, and a propellin ...

and

turbojet The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...

propulsion. It was based on

Ryan Aeronautical The Ryan Aeronautical Company was founded by T. Claude Ryan in San Diego, California, in 1934. It became part of Teledyne in 1969, and of Northrop Grumman when the latter company purchased Ryan in 1999. Ryan built several historically and tec ...

's earlier FR Fireball, but replaced the Fireball's piston engine with a turboprop engine.

Design and development

The XF2R Dark Shark was based on

's earlier FR Fireball, but replaced the Fireball's piston engine with a General Electric T31 turboprop engine driving a 4-bladed

Hamilton Standard Hamilton Standard was an American aircraft propeller (aircraft), propeller parts supplier. It was formed in 1929 when United Aircraft and Transport Corporation consolidated Hamilton Aero Manufacturing and Standard Steel Propeller into the Hamilto ...

propeller A propeller (often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working flu ...

. The turboprop made for much improved performance over the Fireball, and Ryan proposed the XF2R-2 to use a

Westinghouse J34 The Westinghouse J34, company designation Westinghouse 24C, was a turbojet engine developed by Westinghouse Aviation Gas Turbine Division in the late 1940s. Essentially an enlarged version of the earlier Westinghouse J30, the J34 produced 3,000 ...

turbojet in place of the General Electric J31 used as the auxiliary turbojet for the XF2R-1. The XF2R-2 also had a squared-off vertical stabilizer and jet intakes moved to the sides of the forward fuselage with

NACA duct A NACA duct, also sometimes called a NACA scoop or NACA inlet, is a common form of low- drag air inlet design, originally developed by the U.S. National Advisory Committee for Aeronautics (NACA), the precursor to NASA, in 1945. Design Prior su ...

s instead of the inlets in the wing leading edge for the XF2R-1. Although the Dark Shark proved to be a capable aircraft, it never progressed beyond the prototype stage and the XF2R-2 was canceled without being built because the Navy had abandoned the idea of the combination fighter and was instead looking into all-jet fighters, which it considered superior.

Specifications (XF2R-1)

Ryan XF2R Dark Shark 3-view line drawing

References

Notes

Bibliography

* Ginter, Steve. ''Ryan FR-1 Fireball and XF2R-1 Darkshark, Naval Fighters Number 28. Simi Valley, CA: Ginter Books, 1995. . * McDowell, Ernest. ''FR-1 Fireball, Mini in action number 5''. Carrollton, TX: Squadron/Signal Publications Inc., 1995. .

External links