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Gulfstream IV vs Learjet 45

Gulfstream IV vs Learjet 45 at a glance — top speed 935 vs 858 km/h, range 7,815 vs 3,167 km, max takeoff weight 33,520 vs 9,163 kg, built 900 vs 642 units.

Gulfstream IV military transport aircraft side profile drawing
🇺🇸 Gulfstream IVFull specs
Bombardier Learjet 45 military transport aircraft side profile drawing
🇨🇦 Learjet 45Full specs
Specifications
Gulfstream IV Learjet 45
Origin country 🇺🇸 United States 🇨🇦 Canada
Category Military Transport Aircraft Military Transport Aircraft
Manufacturer Gulfstream Bombardier
First flight 19 September 1985 7 October 1995
Year introduced 1987 1998
Number produced 900 units 642 units
Average unit price $26 million $3.2 million
Wing area 88.3 m² 29.0 m²
Wingspan 23.5 m 14.6 m
Height 7.7 m 4.3 m
Length 27.2 m 17.6 m
Maximum speed 935 km/h 858 km/h
Operational range 7,815 km 3,167 km
Service ceiling 13,716 m 15,545 m
Max. takeoff weight 33,520 kg 9,163 kg
Empty weight 19,504 kg 5,829 kg
Total thrust 2 x 6,282 kgf 2 x 1,588 kgf
Performance Radar Chart
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Learjet 45 side profile drawing Learjet 45 Specs, operators & history →
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Frequently Asked Questions

Which is faster, the Gulfstream IV or Learjet 45?
The Gulfstream IV is faster with a maximum speed of 935 km/h compared to the Learjet 45's 858 km/h, a difference of 77 km/h.
Which has longer range, the Gulfstream IV or Learjet 45?
The Gulfstream IV has a longer range at 7,815 km compared to the Learjet 45's 3,167 km.
Which can fly higher, the Gulfstream IV or Learjet 45?
The Learjet 45 has a higher service ceiling at 15,545 meters (51,000 ft) compared to the Gulfstream IV's 13,716 meters (45,000 ft).
Which is heavier, the Gulfstream IV or Learjet 45?
The Gulfstream IV has a higher maximum takeoff weight at 33,520 kg compared to the Learjet 45's 9,163 kg.
Which is larger, the Gulfstream IV or Learjet 45?
The Gulfstream IV is longer at 27.2 meters compared to the Learjet 45's 17.6 meters.
Which is more expensive, the Gulfstream IV or Learjet 45?
The Gulfstream IV is more expensive at approximately $26 million per unit compared to the Learjet 45 at $3.2 million.
Which entered service first, the Gulfstream IV or Learjet 45?
The Gulfstream IV entered service first in 1987, 11 years before the Learjet 45 which entered service in 1998.
Which has been built in greater numbers, the Gulfstream IV or Learjet 45?
The Gulfstream IV has been produced in greater numbers with 900 units compared to 642 units of the Learjet 45.