Learjet 70/75

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Learjet 70/75
G-ZNTH Learjet 75 LJ75 c n 45-540 - BZE (46212773245).jpg
Role Light business jet
National origin Canada/United States
Manufacturer Bombardier Aerospace (Bombardier Aviation after 2019)
Status Production completed
Primary user Zenith Aviation (4)[1]
Produced 2013–2022
Number built 145 by end of 2019
Developed from Learjet 40/45

The Learjet 70/75 is a mid-sized business jet airplane manufactured by the Learjet division of Canadian aircraft manufacturer Bombardier Aerospace. With the end of production in 2022 it is the last Learjet model.

Design[edit]

The flat-floor cabin is 4.9 by 5.1 ft (1.50 by 1.55 m) wide and high.
Learjet 75 left side, with the door open

These models feature new avionics, winglets, and powerful engines that use less fuel.[2]

The Learjet 40/45 light jet is updated with touchscreen-controlled Garmin G5000 avionics and a modern interior.[3] 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%.[4]

The canted winglet design was incorporated from the Bombardier Global 7500/8000.[5]

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.[3]

At FL410, ISA + 3 °C (5 °F) and Mach .78 for 462 kn (856 km/h), its hourly fuel burn is 1,000 lb (450 kg) and 1,400 lb (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).[3]

Development[edit]

The Learjet 75 received its type certificate from the FAA on 14 November 2013.[6] Deliveries began shortly thereafter.[7] This delay in certification caused order cancellations, and Bombardier's overall deliveries fell below expectations.[8] By 2015, the unit cost of the Learjet 70 was US$11.3 million, and US$13.8 million for the Learjet 75.[9] By 2016, production of Learjet 70 has been temporarily discontinued due to lack of orders (with Learjet 75 still being produced).[10]

The 100th Learjet 75 was delivered in June 2017.[11]

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.[3] In June, Bombardier launched the sub-$10 million Learjet 75 Liberty to compete with the Cessna CitationJet and Embraer Phenom 300 from 2020, with six seats down from eight, no standard APU or lavatory sink, but still Part 25 and not FAR Part 23 certified, with a maximum payload of 2,910 lb (1,320 kg) and a range of 2,080 nmi (3,850 km).[12]

Bombardier announced the end of the production of Learjet aircraft by the end of 2021.[13] The final Learjet 75 was manufactured in January 2022.[14] As Bombardier focuses on its larger Challenger and Global jets, it was delivered on 28 March 2022.[15]

Deliveries[edit]

Year 2013[16] 2014[17] 2015[18] 2016[19] 2017[20] 2018[21] 2019[22] All
Deliveries 18 33 32 24 14 12 12 145

Specifications (Learjet 75)[edit]

Cockpit of a Learjet 75

Data from Bombardier[23]

General characteristics

  • Crew: 2
  • Capacity: 8 + 1 passengers
  • Length: 58 ft 0 in (17.7 m) [24]
  • Wingspan: 50 ft 11 in (15.5 m) [24]
  • 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)
  • Pressurization: 9.4 psi (0.65 bar)[25]
  • 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 (2,350 mi, 3,780 km)
  • Service ceiling: 51,000 ft (16,000 m)
  • Wing loading: 69.00 lb/sq ft (336.9 kg/m2)
  • Fuel burn at high-speed cruise: 1,079 lb/h (489 kg/h) at 451 kn TAS at FL470[25]
  • Fuel burn at long-range cruise: 977 lb/h (443 kg/h) at 437 kn TAS at FL470[25]

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. ^ Ross Marowits (May 14, 2012). "Bombardier preparing for light business aircraft recovery with Learjet upgrades". Canadian Business. The Canadian Press.
  3. ^ a b c d Matt Thurber (January 17, 2019). "Pilot Report: Learjet 75". AIN online.
  4. ^ Fred George (Mar 28, 2017). "Operators Survey: Bombardier Learjet 70/75". Business & Commercial Aviation. Aviation Week.
  5. ^ Fred George (14 May 2012). "Bombardier Unveils Learjet 70 and 75". Aviation Week Network.
  6. ^ Molly McMillin (November 15, 2013). "Bombardier's Learjet 75 gets FAA certification". Wichita Eagle.
  7. ^ "As New BizJets Advance, Bombardier Looks Ahead". Aviation Week. 3 Dec 2013.
  8. ^ Graham Warwick (January 20, 2014). "Bombardier Misses Delivery Target; Orders Fall". Aviation Week Network.
  9. ^ "Business Jets Specification and Performance Data" (PDF). Business & Commercial Aviation. Aviation Week. May 2015.
  10. ^ Huber, Mark. "Bombardier Wrestles With Learjet Future". Aviation International News.
  11. ^ "Bombardier Marks Major Milestone with Delivery of 3,000th Learjet Aircraft Manufactured" (Press release). Bombardier. 2 Jun 2017.
  12. ^ Dominic Perry (2 July 2019). "Bombardier revamps Learjet 75 with six-passenger Liberty". Flightglobal.
  13. ^ Evans, Pete (11 February 2021). "Bombardier lays off another 1,600 people, scraps Learjet program". CBC News. Archived from the original on 11 February 2021. Retrieved 11 February 2021.
  14. ^ "Last New Learjet 75 Hits Milestone On Way To Delivery | Aviation Week Network". aviationweek.com. Retrieved 2022-01-21.
  15. ^ Jon Hemmerdinger (30 March 2022). "Learjet production goes silent after six decades". Flightglobal.
  16. ^ "General Aviation Aircraft Shipment Report - 2013 Year End" (PDF). General Aviation Manufacturers Association.
  17. ^ "General Aviation Aircraft Shipment Report - 2014 Year End" (PDF). General Aviation Manufacturers Association.
  18. ^ "General Aviation Aircraft Shipment Report - 2015 Year End" (PDF). General Aviation Manufacturers Association.
  19. ^ "General Aviation Aircraft Shipment Report - 2016 Year End" (PDF). General Aviation Manufacturers Association.
  20. ^ "General Aviation Aircraft Shipment Report - 2017 Year End" (PDF). General Aviation Manufacturers Association.
  21. ^ "General Aviation Aircraft Shipment Report - 2018 Year-End Report" (PDF). General Aviation Manufacturers Association. February 20, 2019.
  22. ^ "General Aviation Aircraft Shipment Report - 2019 Year-End Report" (PDF).
  23. ^ Bombardier (2012). "Bombardier LearJet 75" (PDF). Retrieved 22 May 2012.
  24. ^ a b "Learjet 75". Bombardier. 2019-06-28.
  25. ^ a b c "Purchase Planning Handbook" (PDF). Business & Commercial Aviation. Aviation Week Network. June 2019.

External links[edit]