Beechcraft Model 99

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Model 99
Jamaica Air Shuttle Beechcraft Model 99 In Flight.jpg
A Jamaica Air Shuttle Model 99
Role Twin-engined utility monoplane
National origin United States
Manufacturer Beechcraft
First flight July 1966
Introduction 1968
Status Active
Produced 1966–1987
Developed from Beechcraft King Air
Beechcraft Queen Air

The Beechcraft Model 99 is a civilian aircraft produced by Beechcraft. It is also known as the Beech 99 Airliner and the Commuter 99. The 99 is a twin-engine, unpressurized, 15 to 17 passenger seat turboprop aircraft, derived from the earlier Beechcraft King Air and Queen Air. It uses the wings of the Queen Air, the engines and nacelles of the King Air, and sub-systems from both, with a specifically-designed nose structure.

Design and development[edit]

Designed in the 1960s as a replacement for the Beechcraft Model 18, it first flew in July 1966. It received type certification on May 2, 1968, and 62 aircraft were delivered by the end of the year.

In 1984, the Beechcraft 1900, a pressurized 19-passenger airplane, was introduced as the follow-on aircraft.

Production ended in early 1987. Nearly half the Beech 99s in airline service are now operated as freighters by Ameriflight.

Variants[edit]

Ameriflight Beech C99 freighter takes off from the Mojave Airport
Beech 99s of Britt Airways operating under contract to Allegheny Commuter at Chicago O'Hare in 1975
  • 99 Airliner: Twin-engined Commuter and cargo transport aircraft, 10,400 lb max takeoff weight, accommodation for a crew of two and up to 15 passengers. powered by two 550-hp (410-kW) Pratt & Whitney Canada PT6A-20 turboprop engines.
  • 99 Executive: Executive transport version of the 99 Airliner.
  • 99A Airliner: Same as the 99 Airliner, but powered by two Pratt & Whitney PT6A-27 engines flat-rated at 550 hp.
  • A99A Airliner: One of a kind, 99A Airliner without wing center section tanks; this aircraft has been scrapped.
  • B99 Airliner: Improved version, 10,900 lb max takeoff weight, powered by two 680-hp (507-kW) Pratt & Whitney PT6A-27/28 engines.
  • B99 Executive: Executive transport version of the B99 Airliner.
  • C99 Commuter: Improved version, 11,300 lb (5,100 kg) max takeoff weight, Pratt & Whitney PT6A-36 (engines flat rated at 715 hp)

Operators[edit]

In July 2018, 106 Beechcraft B99 were in airline service, all in the Americas,:[1]

Specifications (Model 99A)[edit]

Data from Green.[2]

General characteristics

  • Crew: 1
  • Capacity: Normally 15 passengers (8-seat 'Business Executive' model available) / Up to 3,600 lb (1,633 kg) depending upon fuel requirements; some aircraft have a belly pod for additional baggage or cargo
  • Length: 44 ft 6.75 in (13.5827 m)
  • Wingspan: 45 ft 10.5 in (13.983 m)
  • Height: 14 ft 4.333 in (4.37726 m)
  • Wing area: 279.7 sq ft (25.98 m2)
  • Airfoil: root: NACA 23018; tip: NACA 23012[3]
  • Empty weight: 5,533 lb (2,510 kg) (varies depending upon equipment and configuration)
  • Max takeoff weight: 10,400 lb (4,717 kg)
  • Powerplant: 2 × Pratt & Whitney Canada PT6A-20 (also -27 /-36) turboprop engines, 550 shp (410 kW) each
  • Propellers: 4-bladed Hartzell constant speed feathering and reversible propellers

Performance

  • Cruise speed: 205 kn (236 mph, 380 km/h) at 10,000 ft (3,048 m)
  • Range: 910 nmi (1,050 mi, 1,690 km)
  • Service ceiling: 26,200 ft (8,000 m)
  • Rate of climb: 1,700 ft/min (8.6 m/s)

Notable accidents and incidents[edit]


See also[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists

References[edit]

  1. ^ "World Airline Census 2018". Flightglobal.com. Retrieved 2018-08-27.
  2. ^ Green, William, The Observers Book of Aircraft, Frederick Warne & Co. Ltd, 1970. ISBN 0-7232-0087-4
  3. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
  4. ^ https://apnews.com/article/1841f4ee7bdcca2ae6ca956d864b2e6f
  5. ^ https://www.washingtonpost.com/archive/politics/1987/09/04/pilot-falls-out-clings-to-door-until-landing/e067c87b-da2f-4fc0-a663-4bb9d4a1cfdf/

External links[edit]