Beech King Air A90
The Beech King Air A90 Model is a pressurized, twin-engine turboprop business aircraft configured as a cantilever low-wing aircraft with a conventional tail. It has retractable landing gear and constant speed, reversible propellors. The A90 King Air was produced by Beechcraft between 1966 and 1967, serial numbers LJ114 through LJ317.
The King Air 90 is found in a variety of passenger configurations seating up to 9 passengers and 1 pilot.
Specifications
Exterior Dimensions
Wing span: 45 ft 10 in
Length: 35 ft 6 in
Height: 14 ft 8 in
Interior Dimensions
Cabin Height: 4 ft 9 In
Cabin Width: 4 ft 6 In
Cabin Length: 12 ft 4 In
Cabin Volume: 227 cu ft
Internal Baggage: 48.3 cu ft
Weights
Max TO weight: 9,300 lb
Basic Operating Weight: 5,680 lbs
Maximum Payload: 1,800
Useable Fuel volume: 384 gal / 2,573 lbs
Engine
Manufacturer: Pratt & Whitney
Model: PT6A-20
Horsepower: 550 hp
Overhaul (HT): 3600hr TBO
Standard Avionics
Dual Avionics
Autopilot and Radar
ADS-B
Performance specifications on Beech A90
| Horsepower: 550.00 | Gross Weight: 9,300 |
| Top Speed: 223 | Empty Weight: 5,680 |
| Cruise Speed: 216 | Fuel Capacity: 384 |
| Stall Speed (dirty): 77 | Range: 1,160 |
| Rate of Climb: 1,900 | Rate of Climb (One Engine): 490 |
| Service Ceiling: 30,200 | Ceiling (One Engine): 17,700 |
| Takeoff | Landing |
| Ground Roll: 1,730 | Ground Roll 1,250 |
| Takeoff Roll Over 50 ft: 2,150 | Landing Roll Over 50 ft: 1,960 |
History
After two years of production the 65-90, Beechcraft moved on to the 65-A90 in 1966. The A90’s TOGW was increased from 9,000 to 9,300 lbs and it was given an engine upgrade from the PT6A-6 engines found on the original 65-90 to more powerful PT6A-20 engines. Its flight deck was also redesigned, and it came equipped with a new engine de-icing system. The 65-A90 was the most widely produced of the variations as 206 of them were built.
Variations
King Air 65-A90
Model 90 with TOGW increased to 9300lb, two 550shp PT6A-20 engines, redesigned flightdeck and a new engine de-ice system, 206 built.
King Air 65-A90-1
Based on the Model 87, unpressurised with square windows and 550shp PT6A-20 engine, 141 built and delivered to the US Army with the designation U-21A.
King Air 65-A90-2
Specialized electronic warfare variant of the A90-1 with five seats, three built as U-21Bs (later RU-21B).
King Air 65-A90-3
Variant of the A90-2 with improved electronic equipment, two-built for the US Army with the designation RU-21C.
King Air 65-A90-4
Project Guardrail variant of the A90-2, strengthened airframes and higher gross weight, 16 built for the US Army.
