The Gulfstream G150 entered service in August 2006 as the replacement for the G100. Gulfstream and IAI kept the basic G100 concept but made several important changes. The G150 received more powerful engines and a new Rockwell Collins Pro Line 21 flight deck. Production ended after Gulfstream sold the final aircraft in 2016, with the last delivery planned for mid-2017.

The design Gulfstream G150 came from the IAI Astra family, but Gulfstream developed the G150 as a distinct step beyond the G100. The result was a midsize jet aimed at buyers who wanted speed and useful range without moving into a larger and heavier aircraft.

• The engines are a known quantity:

Both engines are Honeywell TFE731 - 40AR models rated at 4,420 pounds of thrust each. The type was built around this engine from the start.
That is useful when evaluating a used aircraft because engine status can be checked against a long operating history rather than a brand-new engine design.

• Pro Line 21 is standard to the G150 concept, but individual aircraft can differ:

Rockwell Collins documents the G150 Pro Line 21 installation specifically, including the four-display flight deck and FMS-6000 equipment.
Actual aircraft can have different additional equipment and later upgrades. A current G150 listing, for example, shows ADS-B, WAAS, LPV capability, dual GPS and other Collins equipment.
That is why I would look at the actual equipment list rather than assume every G150 has the same cockpit.

• The aircraft is old enough that maintenance status can change the buying decision:

There is no way around this. The youngest G150s are already years into their operating life.

Cessna Citation XLS+ for Sale / Range: 1,940 nm with four passengers under the manufacturer's published conditions / Passengers: Up to 12.
The XLS+ is the practical alternative when airport flexibility and cabin seating matter more than long legs. Its maximum cruise speed is 441 knots, well below the G150's 459 knots, and its published four-passenger range is about 1,000 nm shorter.
If most trips are short, the XLS+ can be the more sensible tool. For longer nonstop missions, the G150 has the stronger numbers.

Hawker 900XP for sale / Range: 2,818 nm in an eight-passenger configuration in one current operator specification / Passengers: 8.
The Hawker is a direct comparison for buyers who want a comfortable midsize cabin. Its cabin is 21 ft 3 in long, compared with 17 ft 8 in for the G150.
The G150 is faster. The Hawker gives you more cabin length. That is the decision.

Bombardier Learjet 60XR for sale / Range: 2,405 nm Passengers: 7 in a typical current reference.
The Learjet 60XR is the speed competitor. Published figures put it around 465 knots, slightly ahead of the G150, but its range is roughly 500 nm shorter.
For a buyer who values quick cruise performance, both deserve consideration. For longer missions, the G150 has more room in the fuel plan.

Embraer Legacy 450 for sale / Range: 2,900 nm on the published LRC profile with four passengers and NBAA IFR reserves / Passengers: Up to 9.
This is the newer aircraft that makes the G150 comparison especially interesting. The Legacy 450 cruises at 462 knots and has a six-foot stand-up cabin, flat floor, fly-by-wire controls and Pro Line Fusion avionics.
The performance numbers are surprisingly close. The big difference is the design generation and cabin. If cabin space and newer systems are high on the list, the Legacy 450 moves ahead quickly.

Dassault Falcon 50EX for sale / Range: 3,020 nm in commonly published aircraft data / Passengers: 9.
The Falcon 50EX brings three Honeywell TFE731-40 engines and a larger cabin into the comparison. Current aircraft references list roughly 470 knots and 3,020 nm.
It is a different class of airplane in practical terms. The third engine and larger airframe make the Falcon a useful choice when the mission calls for more cabin and long-range capability. The G150 is smaller and uses two engines, which is more appropriate when those extra capabilities are not needed.

The Gulfstream G150 is still a serious midsize jet for the right mission.

Its strongest point is simple. You get roughly 459-knot cruise performance, a published range close to 3,000 nm and a Pro Line 21 cockpit in a relatively compact aircraft.

Looking for a Gulfstream G150 for Sale?
Give us the mission first:

• How many passengers?
• Which routes?
• How much range do you need?
• What year or configuration do you prefer?
• What are your requirements for engines, maintenance and avionics?
• Where will the aircraft be registered and operated?

We will search the open market and our off-market network and come back with aircraft that fit the requirement.