Learjet 70/75

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Learjet 70/75
Global Flight, N446LJ, Learjet 45XR (16454830871).jpg
Role Light business jet
National origin Canada/United States
Manufacturer Bombardier Aerospace
Status In production
Primary user Zenith Aviation (4)[1]
Produced 2013–present
Number built nearly 130 by January 2019[2]
Unit cost
70: US$11.3 million
75: US$13.8 million (2015)[3]
Developed from Bombardier Learjet 40 and Bombardier Learjet 45

The Learjet 70/75 is a light business jet airplane manufactured by the Learjet division of Canadian aircraft manufacturer Bombardier Aerospace.

Design[edit]

These models feature new avionics, winglets, and powerful engines that use less fuel.[4] The Learjet 40/45 light jet is updated with touchscreen-controlled Garmin G5000 avionics and a modern interior.[2] The combination of aerodynamic improvements, which lowered the design's drag by 2%, and 200 lbs less weight in the nose section resulted in an increased range of 4%.[5] The canted winglet design was incorporated from the Bombardier Global 7500/8000.[6]

Both variants are powered by 3,850 lbf (17.1 kN) Honeywell TFE731-40BR turbofans with thrust reversers, have a MTOW of 21,500 lb (9,800 kg) and a fuel capacity of 6,062 lb (2,750 kg) for a maximum range of 2,050 nmi (3,800 km) with four passengers. Typical cruise is Mach .76 and high-speed cruise is Mach .79, the ceiling is FL510 where the cabin altitude is 8,000 ft (2,400 m). Their flat-floor cabin width is 4 ft 11 in by 5 ft 1 in (1.50 by 1.55 m) high, the Learjet 70’s seven-seat cabin length is 17 ft 8 in and 19 ft 10 in (5.38 and 6.05 m) for the nine-seat, double-club Learjet 75. The forward galley facing the entry door is isolated by a pocket door from the seating area with a Lufthansa Technik cabin management, and the aft lavatory has a belted seat. The 50 cu ft (1.4 m3) external baggage hold is heated but not pressurized.[2]

At FL410, ISA + 3°C and Mach .78 for 462 kn (856 km/h), its hourly fuel burn is 1,000 and 1,400 lb (450 and 640 kg) at Mach .80. Certified to the stricter FAR Part 25, the $13.8 million Learjet 75 competes with the Embraer Phenom 300 and the Citation CJ4, beating them in cabin volume, with 364 cu ft (10.3 m3) against 327 and 295 cu ft (9.3 and 8.4 m3) respectively, the Phenom having the same cross-section, larger than the 4 ft 9 in by 4 ft 10 in (1.45 by 1.47 m) CJ4. The Mach .81 capable Learjet is faster than the Mach .78 Phenom and the Mach .77 CJ4, and the Phenom can fly 1,971 nmi (3,650 km) while the CJ4 can fly 2,165 nmi (4,010 km).[2]

Development[edit]

The Learjet 75 received its type certificate from the FAA on 14 November 2013.[7] Deliveries began shortly thereafter.[8] This delay in certification caused order cancellations, and Bombardier's overall deliveries fell below expectations.[9] The 100th Learjet 75 was delivered in June 2017.[10]

By January 2019, Bombardier has delivered 132 Learjet 40/40XRs, 454 45/45XRs, and nearly 130 70/75s, including 24 in 2016 and 14 in 2017.[2]

Specifications (Learjet 75)[edit]

Data from Bombardier[11]

General characteristics

  • Crew: 2
  • Capacity: 8 + 1 passengers
  • Length: 58 ft 0 in (17.68 m) [12]
  • Wingspan: 50 ft 11 in (15.52 m) [12]
  • Height: 14.13 ft (4.31 m)
  • Wing area: 311.6 sq ft (28.95 m2)
  • Empty weight: 13,890 lb (6,300 kg)
  • Max takeoff weight: 21,500 lb (9,752 kg)
  • Powerplant: 2 × Honeywell TFE731-40BR Turbine, 3,850 lbf (17.1 kN) thrust each

Performance

  • Cruise speed: 465 kn (535 mph; 861 km/h) high speed cruise
  • Range: 2,040 nmi (2,348 mi; 3,778 km)
  • Service ceiling: 51,000 ft (16,000 m)
  • Wing loading: 69.00 lb/sq ft (336.9 kg/m2)

Avionics

See also[edit]

Aircraft of comparable role, configuration and era:

References[edit]

  1. ^ Kate Sarsfield (10 July 2018). "Zenith takes delivery of latest Learjet 75". Flightglobal.
  2. ^ a b c d e Matt Thurber (January 17, 2019). "Pilot Report: Learjet 75". AIN online.
  3. ^ "Business Jets Specification and Performance Data" (PDF). Business & Commercial Aviation. Aviation Week. May 2015.
  4. ^ Ross Marowits (May 14, 2012). "Bombardier preparing for light business aircraft recovery with Learjet upgrades". Canadian Business. The Canadian Press.
  5. ^ Fred George (Mar 28, 2017). "Operators Survey: Bombardier Learjet 70/75". Business & Commercial Aviation. Aviation Week.
  6. ^ Fred George (14 May 2012). "Bombardier Unveils Learjet 70 and 75". Aviation Week Network.
  7. ^ Molly McMillin (November 15, 2013). "Bombardier's Learjet 75 gets FAA certification". Wichita Eagle.
  8. ^ "As New BizJets Advance, Bombardier Looks Ahead". Aviation Week. 3 Dec 2013.
  9. ^ Graham Warwick (January 20, 2014). "Bombardier Misses Delivery Target; Orders Fall". Aviation Week Network.
  10. ^ "Bombardier Marks Major Milestone with Delivery of 3,000th Learjet Aircraft Manufactured" (Press release). Bombardier. 2 Jun 2017.
  11. ^ Bombardier (2012). "Bombardier LearJet 75" (PDF). Retrieved 22 May 2012.
  12. ^ a b "Learjet 75". Bombardier.

External links[edit]