Our team has gathered the following Bombardier Learjet 45 specifications, dimensions, and performance numbers from various data sources including publications from the manufacturer and the Federal Aviation Administration (FAA). The dimensions and specifications listed on this page also apply to the Bombardier Learjet 45 XR, which is an improved performance version of the jet. The differences between the regular 45 and the Learjet 45XR are highlighted in the performance and engine section.

General Specifications

Type Certificate for the aircraft was approved on September 22, 1997 by the FAA.
Applied for a type certificate on January 27, 1992
Learjet 45 aircraft are serial numbers 45-002 through 45-455.
Seats: up to 11. 2 pilots and 9 passengers in the main cabin.
Minimum Crew/Number of Pilots: 2. The Learjet 45 requires 2 pilots and is not approved for single pilot operations.

Type Rating: The Learjet 45 and the XR version require type ratings in order to be approved to fly the aircraft.

Certification: FAA/FAR Part 25.

Bombardier Learjet 45 Dimensions

The dimensions listed below are also the Learjet 45 XR Dimensions.

A Bombardier Learjet 45 and 45 XR Dimensions showcased on the an image of the aircraft

Above Bombardier Learjet 45 and 45 XR dimensions photo by FlyRadius. The base image is by redlegsfan21 on Flickr and Wikimedia Commons. Photo is released under a Creative Commons Attribution-Share Alike 2.0 Generic license.

Dimensions - Exterior:

  • Length: 57.6 feet (ft) or 17.56 meters (m)
  • Wingspan: 47.78 ft (14.56 m)
  • Wing area: 311.6 feet squared (ft2) (28.95 m2) (basic)
  • Height: 14.13 ft (4.31 m)

Dimensions - Interior:

  • Cabin length: 19.75 ft (6.02 m) (from cockpit divider to end of pressurized compartment)
  • Cabin width: 5.12 ft (1.56 m) (centerline)
  • Cabin width: 3.2 ft (0.98 m) (floorline)
  • Cabin height: 4.92 ft (1.50 m)
  • Floor area: 66 ft2 (6.13 m2) (excluding cockpit)
  • Cabin volume: 410 ft3 (11.61 m3) (from cockpit divider to end of pressurized compartment)

Learjet 45 Weights:

For the Learjet 45 XR version and not regular Learjet 45s.

  • Maximum ramp weight: 21,750 pounds (lb) or 9,866 kilograms (kg)
  • Maximum takeoff weight: 21,500 lb (9,752 kg)
  • Maximum landing weight: 19,200 lb (8,709 kg)
  • Maximum zero fuel weight: 16,000 lb (7,257 kg)
  • Typical basic operating weight: 14,113 lb (6,402 kg)
  • Maximum fuel weight: 6,062 lb (2,750 kg)
  • Maximum payload (D-E): 1,887 lb (856 kg)
  • Payload – maximum fuel (A-E-F): 1,575 lb (714 kg)
  • Fuel with maximum payload: 5,750 lb (2,608 kg)

Original Learjet 45 Weights

  • Maximum ramp weight: 20,750 pounds (lb) or 9,866 kilograms (kg)
  • Maximum takeoff weight: 20,500 lb (9,752 kg)
  • Maximum landing weight: 19,200 lb (8,709 kg)
  • Maximum zero fuel weight: 16,000 lb (7,257 kg)

Baggage Capacity

  • Maximum Baggage in the Cabin: 170 lb Arm 425 inches
  • Tail compartment: 500 lb Arm 544 inches
  • Floor loading density: 75 pounds per square foot (psf)

A photo of the Bombardier Learjet 45 XR Specifications Displayed on a photo of the aircraft

Above Bombardier Learjet 45 Specifications Photo by FlyRadius. Base photo of the aircraft by redlegsfan21 on Flickr. Photo released under a Creative Commons License.

Bombardier Learjet 45 Performance

Also the Bombardier Learjet 45 XR Performance data

Operating Altitude:

Maximum operating altitude: 51,000 ft (15,545 m)
Climb to cruise altitude of 43,000 ft (13,106 m) after MGTOW departure: 24 min, 7 sec
MGTOW = Maximum Gross Takeoff Weight

Learjet 45 Specifications - Airfield Performance:

Takeoff distance 5,040 feet or 1,536 meters (SL, ISA, MTOW). (Sea Level, International Sea Level, and Maximum Takeoff Weight).
Landing distance: 2,660 feet or 811 meters (SL, ISA, MLW).

Specifications - Range:

Maximum range: 2,049 Nautical Miles (nm), 2,358 Statute Miles (sm) or 3,795 kilometers (km) (with IFR Reserves, ISA conditions and 4 passengers / 2 crew)
Learjet 45 range with 8 passengers: 1,900 nautical miles, 2,186 Statute Miles or 3,519 kilometers (IFR Reserves, ISA, with 8 passengers/2 crew).

See our Bombardier Learjet 45 Range page for more information.

Bombardier Learjet 45 Speed:

High-speed: 465 knots, 535 miles per hour (mph), 861 kilometers per hour (km/h) or Mach 0.81
Typical cruise speed: 465 knots, 535 mph, 861 km/h or Mach 0.81
Long-range speed: 432 knots, 497 mph, 800 km/h, Mach 0.75

Airspeed Limits

VMO (Maximum Operating)
330 Knots Indicated Air Speed (KIAS) Sea Level to 26,756 ft.

MMO (Maximum Operating)
.81 Mach above 26,756 ft.

VA (Sea Level)

  • 149 KIAS 12,500 lbs.
  • 155 KIAS 13,500 lbs.
  • 159 KIAS 14,000 lbs.
  • 178 KIAS 17,000 lbs.
  • 192 KIAS 19,200 lbs.
  • 200 KIAS 20,500 lbs.
  • 206 KIAS 21,500 lbs.

Aircraft flight manual has variations with weight, altitude, aircraft serial numbers, and modifications according to the FAA type certificate.

VB (Speed for maximum gust intensity): 250 KIAS

VFE (Flaps extended)

Flaps 8° 250 KIAS
Flaps 20° 200 KIAS
Landing Position - Full Flaps 150 KIAS

(Minimum control speed) Air
Flaps 8° 103 KIAS
Flaps 20° 100 KIAS

(Minimum control speed) Ground
APR Off 100 KIAS

(Minimum control speed) Landing
Flaps 20° 105 KIAS
Flaps 40° 97 KIAS

(Landing gear operating): 200 KIAS

(Landing gear extended): 260 KIAS

Max. tire ground speeds:
Nose Gear Tire: 210 miles per hour (mph)
Main Gear Tire: 190 mph

Bombardier Learjet 45 XR Performance photo with the data listed on an image of the jet

Above Learjet 45 Performance photo FlyRadius. The base image is by Scott Wright on Wikimedia Commons. Photo is released under a Creative Commons Attribution-Share Alike 2.0 Generic License.

Specifications Engines (Learjet 45 XR Engines):

Honeywell TFE731-20BR

Thrust: 3,500 lb (15.56 kN)
Flat rated to: ISA + 25°C (104°F)
Note: Same as Honeywell TFE731-20AR except operates at the higher ITT ratings of the TFE731-40R engine
Honeywell TFE731-20AR on regular Learjet 45s/original Learjet 45s. Formerly built by AlliedSignal and Garret.

More information, including ITT and fan rotation speeds can be found on our engine page.

Specifications – Fuel

Fuel Capacity: Usable 905 Gallons. Weight 6,062 Pounds. Arm 460 inches
Oil Capacity: Two engine mounted tanks: Total 3.8 gallons. Arm 519 inches. 1.9 gallons each tank.

Specifications – Avionics

Honeywell Primus 1000 suite
See our Learjet 45 Avionics page for more information.

Specifications - Noise Levels:

Flyover (thrust cutback): 75.5 EPNdB
Approach: 93.4 EPNdB
Lateral: 85.1 EPNdB

Other Names for the Aircraft

The Bombardier Learjet 45 Specifications are also known as the Bombardier Learjet 45 XR specifications, LJ45 Specifications, LJ-45 Specifications and the Bombardier Learjet 45 Specs. Those are variations of the name for the aircraft. LJ45 is the four place alphanumeric ICAO code for the jet and LJ-45 is the FAA short name for the aircraft.

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