Beech F90 King Air

Overview

The King Air F90 is the parts-bin hot rod of the 90-series King Air line: an E90 fuselage and wing married to the 200 series T-tail and PT6A-135 engines flat-rated to 750 shp per side. The prototype flew January 1978 and 203 F90s followed between 1979 and 1983, plus 33 F90-1 variants (1983-1986) with the upgraded PT6A-135A hot section, four-bladed Hartzell propellers, and a multi-bus electrical system.

For the GA buyer, the F90 occupies a niche worth understanding. Faster than any C90 or E90, lighter than a 200, and built in small numbers, it appeals to operators who want 200-series engines in a 90-series footprint. The supply is thin: 137 of 236 production airframes remain on the FAA registry. Spec figures and notes on this page reflect the F90 family (F90 and F90-1).

Key Features for GA Buyers

• PT6A-135 power in a 90-series airframe. 750 shp per engine driving four-blade Hartzell props delivers 261-knot cruise and 2,380 fpm climb, materially better than any earlier 90-series King Air.
• T-tail handling. Inheriting the 200’s tail surface gives the F90 a different feel from the C90/E90; pilots transitioning from the 90 series should plan for a recurrent training pass.
• Sea-level cabin to 11,000 ft. Enhanced pressurisation system makes long high-altitude legs more comfortable than earlier 90-series variants.
• Cult following. Owners describe it as the finest of the small King Airs; type-club community is small but active and well-resourced.

Trade-offs

• Thin supply, scarce parts. 137 airframes still flying and 33 F90-1 variants in particular makes specialty parts a known operator headache; budget for longer downtime on uncommon failures.
• Higher acquisition than C90. Pre-owned F90 prices ($725K-1.2M) sit above C90s of the same vintage despite similar cabin space; the buyer is paying for performance, not cabin.
• Type-specific knowledge required. The hybrid airframe creates maintenance quirks not covered by standard 90 or 200-series MX programs; pre-buy and recurrent maintainer relationships matter more than usual.
• Modest range vs the 200. 1,235 nm range trails the contemporary B200’s 1,818 nm, limiting cross-country flexibility.

See Also

• Beech King Air 90 – the E90 airframe and wing the F90 is built on. Compare
• Beech King Air 100 – contemporary 90-series sibling with stretched fuselage. Compare
• Beech 200 Super King Air – donor of the T-tail and engine class, in a heavier airframe. Compare
• Cessna Conquest I – direct competitor in the small cabin-class twin turboprop bracket. Compare
• Piper Cheyenne II – contemporary cabin-class twin turboprop competitor. Compare