Buying a used Gulfstream G600: price, checks and questions for the seller
Most North American G600s crossed the Atlantic in one leg: 123 of 137 did so at least once in the twelve months to 31 Jul 2026, making 614 crossings in all. For a used Gulfstream G600, a pre-purchase inspection reports condition at a single moment. Tracking shows the landings, runways and overnight fields it caught before then.
Each TailCheck chapter gets one check: Fatigue, Corrosion, Engines and brakes, and Utilization. Each gives the G600 fleet's median on its lead measure, the level 1 in 20 aircraft passed at the hard end, red flags and questions for the seller.
What has each flight cost the structure?
The median G600 flew 2.3 hours for each landing, and the middle half of the fleet between 1.8 and 2.6 hours. At the hard end, 1 in 20 averaged 1.4 hours per landing or less. Those aircraft built the most cycles for their hours.
Hours per landing, short hops and leg length.
Every landing is one pressurization cycle for the fuselage and one cycle on the landing gear. Both count against life limits set in cycles. A G600 flown on short legs builds cycles faster than its hours suggest.
Each aircraft’s average flight hours per landing
The 25th to the 75th percentile: typical.
The 5% that ask most of the aircraft
All 137 active G600s in North America, 1 Aug 2025 – 31 Jul 2026.
The rest of the check
Same aircraft and window| Measure | Fleet median | Middle half | Harder end |
|---|---|---|---|
| Short hops Share of legs under 300 nm | 31% | 20–39% | 5% at 56% or more |
| Leg length Median leg | 635 nm | 459–757 nm | Highest 5%: 1,073 nm or more |
1.4 hours per landing or less, where only 1 in 20 G600s sat.
Short hops, legs under 300 nm, on 56% or more of its legs. Only 1 in 20 G600s flew that many.
A landing count that doesn't square with the logged hours at anything near the fleet median above.
How many landings has it logged against its hours, and how does that ratio compare with the G600 fleet median?
Which structural and landing-gear life limits are counted in landings, and how much of each is left?
What air has it lived in?
The median G600 spent 3% of its nights within 2 km of the coast, our measure of salt air. The middle half sat between 1% and 6%, and 1 in 20 spent 11% or more there.
Salt, damp and freeze–thaw where it spends its nights.
Corrosion grows where an aircraft spends its nights. Salt air, damp and freeze–thaw cycles all speed it up. A coastal base doesn't rule an aircraft out. It moves corrosion to the top of the inspection list.
Nights within 2 km of the coast
The 25th to the 75th percentile: typical.
The 5% that ask most of the aircraft
102 G600s in North America we can place on enough nights at known fields, 1 Aug 2025 – 31 Jul 2026; 3 on their record since 1 Jan 2025, with too few in the twelve months.
The rest of the check
Same aircraft and window| Measure | Fleet median | Middle half | Harder end |
|---|---|---|---|
| Near the coast Nights within 10 km of the coast | 14% | 7–35% | 5% at 92% or more |
| Damp air Hours a day at 80% humidity or more, above freezing | 7.4 h | 6.0–8.6 h | 5% at 11.1 h or more |
| Freeze–thaw Nights that froze and thawed within the day | 7% | 3–16% | 5% at 25% or more |
| Moisture in the air Average absolute humidity overnight | 9.3 g/m³ | 7.8–10.6 g/m³ | 5% at 12.8 g/m³ or more |
Salt air on 11% or more of its nights, a share 1 in 20 G600s reached, with no record of hangar storage.
Freeze–thaw on 25% or more of its nights, with no recent check of drains, seals and sealant.
A main base on the coast and no corrosion inspection anywhere in the records.
Where has it been based, and was it stored in a hangar there?
When was the last corrosion inspection, and what did it find?
What did its departures ask of the engines and brakes?
The median G600 left from a short runway on 35% of its departures: a field whose longest runway is under 1.25 times the published takeoff distance. For 1 in 20, the share was 68% or more.
Runway length, heat and height at takeoff.
A short runway leaves less room to stop, so the brakes and tires work harder. A hot, high takeoff, at 5,000 ft density altitude or more, needs more from the engines. A pattern of both is worth matching against engine trend data and brake records.
Departures where the longest runway was under 1.25× the takeoff distance
The 25th to the 75th percentile: typical.
The 5% that ask most of the aircraft
137 G600s in North America with enough departures we could assess, 1 Aug 2025 – 31 Jul 2026; 1 on their record since 1 Jan 2025, with too few in the twelve months.
The rest of the check
Same aircraft and window| Measure | Fleet median | Middle half | Harder end |
|---|---|---|---|
| Hot, high takeoffs Departures at 5,000 ft density altitude or more | 3% | 1–6% | 5% at 17% or more |
| Density altitude Typical density altitude at takeoff | 1,172 ft | 922–1,471 ft | 5% at 2,541 ft or more |
Short runways on 68% or more of its departures, without brake and tire records to match.
Hot, high takeoffs on 17% or more of its departures, a level 1 in 20 G600s passed, without engine trend data to match.
Are the Pratt & Whitney Canada PW815GA engines (EASA TCDS EASA.IM.A.595 Issue 15, p.20) on an hourly maintenance program, and does it transfer?
Is there engine trend data, and do the brake and tire changes line up with the shorter fields it used?
How hard has it been flown?
The median G600 flew 171 estimated hours a year. The middle half of the fleet logged between 122 and 242 hours, and 1 in 20 logged more than 318 hours.
Estimated hours, flights and flying days: how much of its life it has used.
Hours flown set the timing of hours-based inspections and engine overhauls, and both come due sooner on a busy aircraft. Set the tracked flying beside the logbook hours, month by month.
From time in the air
The 25th to the 75th percentile: typical.
The 5% that ask most of the aircraft
All 137 active G600s in North America, 1 Aug 2025 – 31 Jul 2026. Tracking misses some flights, so hours are minimums.
The rest of the check
Same aircraft and window| Measure | Fleet median | Middle half | Harder end |
|---|---|---|---|
| Flights a month In the months it flew | 6.3 | 4.4–8.9 | 5% at 13.6 or more |
| Days flown a month Days with at least one flight | 4.9 | 3.3–6.5 | 5% at 9.2 or more |
318 estimated hours a year or more, a level only 1 in 20 G600s reached, presented as typical use.
Logbook hours well below what tracking shows. Tracking misses some flights and its hours are estimates, so a small gap means little; a large one needs an explanation.
Do the logbook hours match the tracked flying, month by month?
Has it flown charter or under management, and for how long?
What affects the price of a used G600
Six parts of a used G600's record carry weight with buyers: its age, hours, landings, charter history, demanding fields and corrosion exposure. Each comes with the fleet's figures and the TailCheck chapter that grades it.
| What moves the price | Across the G600 fleet | TailCheck chapter |
|---|---|---|
| Age | Calendar-based inspections come due with age, however little an aircraft flew. Build year alone says little about wear. Among G600s with a known build year, those built 2017 to 2022 flew a median of 178 estimated hours a year, and those built 2023 to 2025 a median of 180 hours. | Fatigue |
| Hours | Hours-based inspections and engine overhauls come due sooner on an aircraft that flies more. A tenth of the fleet flew fewer than 92 estimated hours a year, and a tenth more than 287. The median is in the Utilization check. | Utilization |
| Landings | Every landing counts against structural and landing-gear life limits, so an aircraft with few hours per landing has used more of those limits for its hours. The middle half of the G600 fleet flew between 1.8 and 2.6 hours per landing. A candidate below that band deserves a closer look at its cycle count. | Fatigue |
| Charter history | Charter flying adds hours and landings quickly. Ask for the maintenance program that ran alongside it. Our charter list holds 18% of the G600s we tracked. | Utilization |
| How hard it has been flown | Short runways work the brakes and tires, and hot, high departures work the engines. The fleet median was 35% of departures from short runways. For hot, high departures, the median was 3%. | Engines and brakes |
| Base and corrosion exposure | Salt air and damp at the fields where an aircraft spends its nights drive corrosion, which takes time and labor to find and fix. A quarter of the G600 fleet spent 5% or more of its nights within 2 km of the coast. The median is in the Corrosion check. | Corrosion |
Asking prices vary by aircraft, and the tail’s history explains much of the difference. Check a tail →
Where TailCheck fits in a G600 purchase
The usage checks cost least at the start, before any deposit or agreement. After that, the report guides the records reviewer and the inspection shop to the parts of the aircraft worth the closest look.
| # | Step | Where TailCheck helps |
|---|---|---|
| 01 | Shortlist Screen candidates on how they have been used before spending on anything else. | Free record for each tail, then TailCheck on the shortlist |
| 02 | Letter of intent Price and terms, subject to inspection and a records review. | — |
| 03 | Records review Logbooks, maintenance programs and damage history. | Hours, landings and long gaps to check the logbooks against |
| 04 | Pre-purchase inspection At a shop that knows the type. | Brief the shop on what the usage data flagged |
| 05 | Discrepancies and price Negotiate on what the inspection and records found. | Grades against the type support the conversation |
| 06 | Closing and delivery Title, escrow, registration and acceptance flight. | — |
What each part of the purchase answers
Usage is one leg of a purchase; paperwork and condition are the others| Item | Why it matters on a G600 | Who answers it |
|---|---|---|
| Usage history | Hours, landings, bases and gaps, against the 137 North American G600s. | TailCheck |
| Logbooks | Complete, back-to-birth records, and whether they square with the tracked flying. | Records review |
| Damage history | Any structural repair, how it was signed off, and whether it was disclosed. | Records review |
| Inspections due | When the next major inspections fall due, by hours, landings and calendar. | Records review |
| Engine program | Whether the Pratt & Whitney Canada PW815GA engines are enrolled on an hourly maintenance program, and whether it transfers.Engines: EASA TCDS EASA.IM.A.595 Issue 15, p.20 | Records review |
| Physical condition | Corrosion, structure, systems and interior: what the usage data says to look at hardest. | Pre-purchase inspection |
| Title and registry | Liens, the ownership chain and any export or import between registries. | Title search |
What tracking can and can’t tell you
Tracking shows how a G600 was flown: its flights, landings, runways and the fields where it spent its nights. It misses some flights and can't show the airframe's condition. Use it alongside the inspection and the records review.
| What it can show | What it can’t establish |
|---|---|
| What it has flown, and where | Its mechanical condition, maintenance quality or airworthiness |
| How hard it is used against other G600s | Its exact hours and landings, or flights we didn’t see |
| Long stays on the ground, and gaps in the track | What work was done at any shop, or why it sat anywhere |
| Where it spends its nights, and the weather there | Whether it was hangared or parked outside |
| What its departures asked: runway length, heat and height | Its takeoff weight, or which runway it used |
Ben
Ben founded The Aircraft Ledger to show buyers how an aircraft has really been flown. Before that, he spent five years researching what more than 140 private jet models cost to buy and run, for clients mostly in the US.
Down to two G600s?
Check both tails before you choose.
Enter the two tails on your shortlist. TailCheck grades each one on Fatigue, Corrosion, Engines and brakes, and Utilization against the G600 fleet, then puts them side by side.
Buying a used G600: questions
How many hours a year is normal for a G600?
The median North American G600 flew 171 estimated hours a year in the twelve months tracked. The middle half of the fleet logged between 122 and 242 hours. That band is a fair test of normal for this type. Below it, ask how long the aircraft sat and why. Above it, ask what kept it busy, such as charter work.
Is a high-hour G600 a bad buy?
No. High hours flown on long legs build fewer cycles than the same hours on short hops, and cycles count against structural and landing-gear life limits. The median G600 flew 2.3 hours per landing. Hours-based inspections and engine overhauls will come due sooner on a high-hour aircraft, so check where each stands. Look at a candidate's hours and landings together, and ask the inspection shop to weigh both.
Does a TailCheck report replace a pre-purchase inspection?
No. The TailCheck report shows how the aircraft was used, and a pre-purchase inspection shows its condition. The report points the inspection team to the areas its usage record singles out.
Can tracking show whether a G600 was hangared?
No. Tracking shows where the aircraft spent its nights and the weather at those fields, salt air and freeze–thaw nights included. Whether it was inside a hangar is a question for the seller and the records.
When should I run these checks?
Before a letter of intent, while dropping the aircraft still costs nothing. Afterward, share the report with your records reviewer and the inspection shop so they know where to focus.
Cite this data
The Aircraft Ledger. “Buying a used Gulfstream G600.” Data to 29 August 2026. theaircraftledger.com/guides/gulfstream-g600
Method: benchmarks are North American G600s with at least 20 tracked flights in the latest twelve full months, ADS-B tracking 1 Aug 2025 – 31 Jul 2026; each figure is the fleet median with its middle half (25th–75th percentile) and the 5% at the harder end. Estimated hours from time in the air; tracking misses some flights, so counts and hours are minimums. We assume the longest runway at each field, so short-runway figures are conservative. Engines from the type certificate data sheet, cited. This guide is general information, not an inspection, appraisal or records review. About our data