Beech King Air C90B

The Beech King Air C90B is a pressurized, twin-engine turboprop business aircraft configured as a cantilever low-wing aircraft with a conventional tail. It has hydraulic, retractable landing gear and three or four-blade propellors. The Model C90B and C90SE were produced by Beechcraft between the years 1992 and 2005 during which time 456 aircraft were manufactured, serial numbers LJ1288 through LJ1726, 1728-1753, 1755.

The King Air C90B is found in a variety of passenger configurations seating up to 5 passengers and 1 pilot. A typical executive configuration being a four-place club, a seat across from the airstair door, and a belted lavatory seat. The aft cabin/lavatory has a small baggage storage area.




Exterior Dimensions

Wing span: 50 ft 3 in
Length: 35 ft 6 in
Height: 14 ft 3 in

Interior Dimensions

Cabin Height: 4 ft 8 In
Cabin Width: 4 ft 5 In
Cabin Length: 12 ft 5 In
Cabin Volume: 270.1 cu ft
Internal Baggage: up to 7.7 bags and 54 cu ft


Max TO weight: 10,100 lb
Empty Weight:  6,950 lbs
Maximum Payload: 2,142
Fuel capacity: 384 gal


Manufacturer: Pratt & Whitney
Model: PT6A-21
Horsepower: 550 hp
Overhaul (HT): 3600hr TBO

Standard Avionics

Collins Proline Avionics with two tube EFIS-84 and APS-65 Autopilot
Terrain Awareness System B
Autopilot and Radar


Performance specifications on Beech C90B

Horsepower: 550.00 Gross Weight: 10,100 lb
Top Speed: 273 Empty Weight: 6,950
Cruise Speed: 246 Fuel Capacity: 384
Stall Speed (dirty): 78 Range: 1,207
Rate of Climb: 2,010 Rate of Climb (One Engine): 495
Service Ceiling: 30,000 Ceiling (One Engine): 14,800
Takeoff Landing
Ground Roll:  Ground Roll 
Takeoff Roll Over 50 ft: 2,714 Landing Roll Over 50 ft: 3,692




Only two C90As were built in 1992, the Model C90B was introduced that same year. All C90B’s carry a C90A dataplate. The C90B designation is actually a marketing designation with four options which became standard on the C90B in 1992. With the introduction of the C90B, four blade props, two (versus one) tube Collins EFIS-84, a passive noise suppression system and a redesigned interior….all became standard.

The better soundproofing, four-bladed propellers, and propeller synchrophasing were all an effort to reduce cabin noise. This model also had PT6A-21s; the first production C90B was fitted with the 10,000th PT6 engine delivered to Beechcraft. The interior featured King Air 350 styling, three position flaps, and upgraded Collins EFIS 84 avionics.

In 1994 a cheaper version was introduced as the C90SE (Special Edition), with three-bladed propellers, standardized interior and mechanical Bendix/King avionics instead of the Collins Electronic Flight Instrument System (EFIS) fitted to the C90B. The space normally taken up by the remotely located avionics system boxes is a baggage compartment. Beechcraft also replaced the fixed partition between the cockpit and cabin with a lightweight curtain for the C90SE.  The SE, new in 1994, was built in response to competing single engine turboprops. It was lower priced than the C90B.


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This article uses material from this Wikipedia article, which is released under the Creative Commons Attribution-Share-Alike License 3.0.
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