TailCheck
Gentler than its type on engines and brakes, harsher on utilization, typical on fatigue and corrosion, with one four-week stay away from base.
16% against 30% for the middle G650 (11th). Fewer of the hardest cycles.
6.4 h against 8.0 h for the middle G650 (15th). Drier nights than most.
11% against 26% for the middle G650 (17th). A lighter braking load than most.
6% against 2% for the middle G650 (84th). More hot or high takeoffs than most.
1,670 ft against 1,150 ft for the middle G650 (84th). Thinner air, harder takeoffs.
19.6 against 5.6 for the middle G650 (>99th). Used harder than most.
13.3 d against 4.3 d for the middle G650 (>99th). More flying days than most.
≈531 hr against ≈172 hr for the middle G650 (98th). More hours than most.
What each landing and pressurization cycle costs the structure: landings per hour and short hops.
Few very short hops and longer trips. Typical on fatigue.
Against 2.7 : 1 for the middle G650 (32nd). Inside the middle half, so typical.
Against 30% for the middle G650 (11th). Fewer of the hardest cycles.
Against 679 nm for the middle G650 (77th). Shown as context: explains the hours per landing; not graded twice.
Leg length is shown as context. Shorter legs are what lower hours per landing, so grading both would count the same thing twice.
What the air around it does overnight: salt, damp and freeze–thaw.
Drier nights. Typical on corrosion.
Against 4% for the middle G650 (60th). Inside the middle half, so typical.
Against 8.0 h for the middle G650 (15th). Drier nights than most.
Against 5% for the middle G650 (60th). Inside the middle half, so typical.
We can place 400 of its 601 nights (67%) at a known field. Weather from a 9 km grid adjusted for field height.
What departures ask of engines, brakes and tyres: heat and height, runway length and dust.
Easy airfields and hot, high takeoffs. Gentler on engines and brakes.
Against 26% for the middle G650 (17th). A lighter braking load than most.
Against 2% for the middle G650 (84th). More hot or high takeoffs than most.
Against 1,150 ft for the middle G650 (84th). Thinner air, harder takeoffs.
We assume the longest runway at each field, so short-runway figures are on the low side.
How steadily it has been used: utilization, plus home base, stays away and trend as context.
Heavy use and one long stay away. Harsher on utilization.
Against 5.6 for the middle G650 (>99th). Used harder than most.
Of flying days from the same field, every month of the record.
166 flights in 2026 against 163 in 2025.
Flights per month · shaded band is its normal range · dark bar is November 2025, when its longest stay away began
Use held steady in 2026. It is still flying: last seen 26 Aug.
It sat at one field for 27 days, about 30 times its usual gap between flights, and other aircraft were tracked there the whole time. That field has a Gulfstream OEM service centre for this type.
The stay is certain; the reason is not. A scheduled inspection and an unscheduled repair look the same from the track. The logbook entries and any work orders show which it was.
One corridor carries about a fifth of its flights.
86 of 402 flights on one corridor, both directions.
Spread across many destinations.
42 flights crossed a border.
Harsher than the type on utilization, gentler on engines and brakes, typical on fatigue and corrosion.
Everything here comes from N55’s flight track, from its first tracked flight of 2025 to its latest on 26 Aug 2026. A flight is one tracked leg. Hours are estimated from time in the air; the logbook has the real totals. Every count is a minimum. Airports and exact dates are left out on purpose. Pricing and valuation are for your appraiser.
How grades work. Each graded row is placed among All G650s (n=510), and its comparison figure is the middle G650: the aircraft at the 50th percentile, not the fleet average, so a figure below it always sits below the 50th. Between the 25th and 75th percentile it is typical. Outside that band it is gentler or harsher, depending on whether it eases or adds to that kind of wear. Each chapter takes the grade of one lead metric, fixed in advance: hours per landing for fatigue, coastal nights for corrosion, short-runway departures for engines and brakes, flights a month for utilization. Rows marked context are shown without a grade, either because they explain another row (leg length drives hours per landing) or because they aren’t a measure of wear (stays, home base, trend). Fewer than 30 comparable aircraft and a row isn’t graded.