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Gulfstream G100 vs Learjet 45

Gulfstream G100 vs Learjet 45 at a glance — top speed 874 vs 858 km/h, range 5,462 vs 3,167 km, max takeoff weight 11,500 vs 9,163 kg, built 265 vs 642 units.

Gulfstream G100 military transport aircraft side profile drawing
🇺🇸 Gulfstream G100
Bombardier Learjet 45 military transport aircraft side profile drawing
🇨🇦 Learjet 45
Specifications
Gulfstream G100 Learjet 45
Origin country 🇺🇸 United States 🇨🇦 Canada
Category Military Transport Aircraft Military Transport Aircraft
Manufacturer Gulfstream Bombardier
First flight 1 January 1984 7 October 1995
Year introduced 1985 1998
Number produced 265 units 642 units
Average unit price $4.3 million $3.2 million
Wing area 29.4 m² 29.0 m²
Wingspan 16.6 m 14.6 m
Height 5.5 m 4.3 m
Length 17.0 m 17.6 m
Maximum speed 874 km/h 858 km/h
Operational range 5,462 km 3,167 km
Service ceiling 13,716 m 15,545 m
Max. takeoff weight 11,500 kg 9,163 kg
Empty weight 6,531 kg 5,829 kg
Total thrust 2 x 1,928 kgf 2 x 1,588 kgf
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the Gulfstream G100 or Learjet 45?
The Gulfstream G100 is faster with a maximum speed of 874 km/h compared to the Learjet 45's 858 km/h, a difference of 16 km/h.
Which has longer range, the Gulfstream G100 or Learjet 45?
The Gulfstream G100 has a longer range at 5,462 km compared to the Learjet 45's 3,167 km.
Which can fly higher, the Gulfstream G100 or Learjet 45?
The Learjet 45 has a higher service ceiling at 15,545 meters (51,000 ft) compared to the Gulfstream G100's 13,716 meters (45,000 ft).
Which is heavier, the Gulfstream G100 or Learjet 45?
The Gulfstream G100 has a higher maximum takeoff weight at 11,500 kg compared to the Learjet 45's 9,163 kg.
Which is larger, the Gulfstream G100 or Learjet 45?
The Learjet 45 is longer at 17.6 meters compared to the Gulfstream G100's 17.0 meters.
Which is more expensive, the Gulfstream G100 or Learjet 45?
The Gulfstream G100 is more expensive at approximately $4.3 million per unit compared to the Learjet 45 at $3.2 million.
Which entered service first, the Gulfstream G100 or Learjet 45?
The Gulfstream G100 entered service first in 1985, 13 years before the Learjet 45 which entered service in 1998.
Which has been built in greater numbers, the Gulfstream G100 or Learjet 45?
The Learjet 45 has been produced in greater numbers with 642 units compared to 265 units of the Gulfstream G100.