Beechcraft 99: A Comprehensive Guide for Pilots
The Beechcraft 99, also known as the Beech 99 Airliner or Commuter 99, is a twin-engine, unpressurized turboprop aircraft. Designed as a versatile and reliable workhorse, it has served various roles from passenger transport to cargo hauling. In this article, we delve into the history, specifications, performance, and avionics of this iconic aircraft.
History
The Beechcraft 99 was developed in the 1960s as a replacement for the aging Beechcraft Model 18. It first took to the skies in July 1966 and received type certification on May 2, 1968. The aircraft was derived from the Beechcraft King Air and Queen Air, utilizing the wings of the Queen Air and the engines and nacelles of the King Air. Production continued until early 1987, with a total of 239 units built.
Specifications
The Beechcraft 99 is known for its robust design and versatility. Here are its key specifications:
- Dimensions:
- Length: 44 ft 6 in (13.58 m)
- Wingspan: 45 ft 10 in (13.98 m)
- Height: 14 ft 4 in (4.38 m)
- Wing Area: 279.7 ft² (26.0 m²)
- Capacity:
- Crew: 1-2
- Passengers: 15-17
- Weights:
- Maximum Takeoff Weight: 10,900 lbs (4,944 kg) for B99; 11,300 lbs (5,126 kg) for C99
- Empty Weight: 6,495 lbs (2,946 kg) for C99
- Powerplant:
- Engines: Two Pratt & Whitney Canada PT6A-20 or PT6A-27 turboprops
- Power: 550 hp (410 kW) each for PT6A-20; 680 hp (507 kW) each for PT6A-27
Performance
The Beechcraft 99 offers impressive performance metrics, making it suitable for various missions:
- Speed:
- Maximum Cruise Speed: 205 knots (380 km/h) for PT6A-20; up to 249 knots (461 km/h) for PT6A-36
- Normal Cruise Speed: 205 knots (380 km/h)
- Range:
- Normal Range: 910 nautical miles (1,687 km)
- Service Ceiling: 25,000 ft (7,620 m)
- Climb Rate:
- Rate of Climb: 1,700 feet per minute (518 m/min)
Avionics
Modern avionics upgrades have kept the Beechcraft 99 relevant in today's aviation landscape. Recent upgrades include:
- Primary Flight Displays: Dual Garmin G600
- Navigation and Communication: Garmin GTN750 and GTN650 COM/NAV/GPS units
- Audio Panel: PS Engineering PMA8000E Dual Audio Panel
- Transponder: Garmin GTX327
- Standby Instrument: MD302 SAM Electronic Standby Instrument
These upgrades enhance situational awareness and safety, making the Beechcraft 99 a reliable choice for modern operations.
Conclusion
The Beechcraft 99 remains a beloved aircraft among pilots for its reliability, versatility, and performance. Whether used for passenger transport or cargo hauling, it continues to serve various roles effectively. With modern avionics upgrades, the Beechcraft 99 is well-equipped to meet the demands of contemporary aviation.For pilots seeking a dependable and versatile aircraft, the Beechcraft 99 stands out as a proven performer with a rich history and robust capabilities.
Variants
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)
