Lancair IV

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Lancair IV
LancairIV-PC-GLFP02.jpg
A Lancair IV-P, with a non-standard four-bladed propeller
Role Homebuilt aircraft
Manufacturer Lancair
Status Production completed 2012
Produced 360 (2011)[1]
Unit cost
USD$400,000-500,000 (IV-P in 2011)[1]
Variants Lancair Propjet
Lancair Tigress

The Lancair IV and IV-P are a family of four-seat low-wing retractable-gear composite monoplanes powered by a 550 cubic inch Continental turbo-normalised piston engine.[1][2][3]

Production of the aircraft kit was ended in 2012.[4]

Development

Lancair IV landing

The Lancair IV and IV-P were designed by Lancair around the Continental TSIO-550 - a twin turbocharged engine that is capable of developing 350 hp (261 kW) at sea level and capable of operating altitudes as high as 29,000 feet.[1][3]

By the fall of 2011 110 Lancair IVs and 250 IV-Ps had been completed and were flying.[1]

Operational history

In 2014, Bill Harrelson piloted a Lancair IV setting a world speed record for solo flight between the earth's poles for an aircraft under 3,000 kilograms (6,600 lb) in a 175 hour long series of flights. The flight also broke a record from Fairbanks, Alaska to Kinston, North Carolina. The aircraft was modified to hold 361 U.S. gallons (1,370 L; 301 imp gal) of fuel.[5]

Variants

Lancair IV
Unpressurized four seat kit-plane, powered by a 350 hp (261 kW) Continental TSIO-550 engine[1][3]
Lancair IV-P
Pressurized four seat kit-plane, powered by a 350 hp (261 kW) Continental TSIO-550 engine[1][3]
Lancair Propjet
Pressurized four seat kit-plane, powered by either a Walter or a PT6 Pratt & Whitney turboprop, that can achieve cruise speeds in excess of 300 knots (556 km/h) at altitudes up to 30,000 feet (9,140 m).
Lancair Tigress
A proposed pressurized version using the 600 hp (447 kW) Orenda OE600 V-8 engine, giving it a cruise speed of 405 mph (652 km/h). The engine was later cancelled and consequently only prototypes of the aircraft were completed.[6]

Accidents

As of June 2014, the NTSB Aviation Accident Database records 20 crashes involving 18 fatalities across all IV variants.[7]

On February 3, 2012, Steve Appleton, CEO of Micron Technology, Inc., was killed while attempting an emergency landing in a Lancair IV-PT turboprop at the Boise Airport in Boise, Idaho, moments after takeoff. He had aborted a take off a few minutes earlier.[8][9]

Specifications (Lancair IV-P)

Data from Lancair websites[10][11]

General characteristics

  • Crew: one
  • Capacity: three passengers
  • Length: 25 ft 0 in (7.62 m)
  • Wingspan: 35 ft 6 in (10.82 m)
  • Wing area: 98 sq ft (9.1 m2)
  • Aspect ratio: 9:1
  • Empty weight: 2,200 lb (998 kg)
  • Gross weight: 3,550 lb (1,610 kg)
  • Fuel capacity: 90 U.S. gallons (340 L; 75 imp gal), 110 U.S. gallons (420 L; 92 imp gal) with extended tanks
  • Powerplant: 1 × Continental TSIO-550 six cylinder, horizontally opposed piston engine, 350 hp (260 kW)
  • Propellers: 3-bladed Hartzell PHC-H3YF-1RF, constant speed, 6.33 ft 76 in (3.86 m) diameter

Performance

  • Cruising speed: 253 mph; 407 km/h (220 kn) at 24,000 feet
  • Stall speed: 70 mph; 113 km/h (61 kn) in landing configuration
  • Never exceed speed: 315 mph; 507 km/h (274 kn)
  • Range: 1,550 mi (1,347 nmi; 2,494 km) with reserves at 8000 feet
  • Endurance: 6.0 hours
  • G limits: +4.4/-2.2 (utility category), +3.8/-2.0 (normal category)
  • Rate of climb: 1,500 ft/min (7.6 m/s) at 3550 lbs gross weight
  • Wing loading: 36.2 lb/sq ft (177 kg/m2) without winglets

References

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External links

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Vandermeullen, Richard: 2011 Kit Aircraft Buyer's Guide, Kitplanes, Volume 28, Number 12, December 2011, page 59. Belvoir Publications. ISSN 0891-1851
  2. ↑ Kitplanes Staff: 2008 Kit Aircraft Directory, page 59, Kitplanes Magazine December 2007 Volume 24, Number 12, Belvior Publications, Aviation Publishing Group LLC.
  3. ↑ 3.0 3.1 3.2 3.3 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 106. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 190. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lancair IV-P Specifications
  11. ↑ rts-services.com/Schaefer/LancAir/N144RT-FlightManual.doc
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