Ryan FR Fireball - Variants

Variants

XFR-1
Military designation of the Prototype Model 28 aircraft, three built.
FR-1 Fireball
Single-seat fighter aircraft, 66 built.
FR-2
Conversion with a Wright R-1820-74W replacing earlier piston engine, one aircraft modified.
FR-3
Proposed variant with a General Electric I-20 replacing earlier jet engine; never built.
XFR-4
Variant with Westinghouse J34; one built.
XF2R-1
Final variant with Westinghouse J34 and General Electric XT31-GE-2 turboprop replacing the piston engine; one built.

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