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Tail record, Bombardier Challenger 600 (Challenger 605), United States register

N605RB: how this Bombardier Challenger 600 is flown

A lightly flown Challenger 600: flown less than three quarters of its type.

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Figures are for the twelve months to 31 Jul 2026; named aircraft are shown a week behind. Grades compare its record since 1 Jan 2025 with every tracked Challenger 600.

01

How N605RB compares.

Flown less often than 87% of Challenger 600s, by flights a month.

Tracked flights

35

in the twelve months, about 3 a month

Busiest Challenger 600s

664th

of 763 tracked, by flights a month

Estimated hours

≈152

in the twelve months, from time in the air

Flights a month, every tracked Challenger 600

02

Month by month.

N605RB flew more than the middle half of the fleet in 1 of 12 months. Its busiest month was July 2026, with 12 flights.

Tracked flights

Its busiest month was July 2026, with 12 flights. It did not fly in November 2025. The record has 17 tracking gaps, so about one flight in 2 may be missing and every count is a minimum.

Source: The Aircraft Ledger, flight data for N605RB, the twelve months to 31 Jul 2026. Flight counts only: airports and exact dates are left out of this page.

03

The free chapter.

Each measure against all 763 tracked Challenger 600s. Every dot is one aircraft; the gold one is N605RB.

Chapter 4

Utilization

Gentler than its type

How hard has it been used?

Light use spends maintenance intervals slowly, but long spells parked bring their own wear: seals, corrosion and preservation. Worth asking how it was stored.

  • Flights a monthLead measure. 13th percentile

    3.1middle Challenger 600 6.1

  • Days flown a month13th percentile

    2.5 dmiddle Challenger 600 4.5 d

  • Estimated hours a year60th percentile

    ≈160 hrmiddle Challenger 600 ≈132 hr

Harsher means harder on the aircraft than three quarters of Challenger 600s; typical is the middle half. Percentiles compare this aircraft with every tracked Challenger 600, over its record since 1 Jan 2025.

04

What only the report shows.

The fleet is shown, and whether N605RB sits inside its middle half. Its grades and values are in the full report.

Chapter 1

Fatigue

Hours per landing, middle Challenger 600: 1.8 : 1

Also graded: short hops. Leg length is shown as context.

N605RB sits outside the middle half, on one side or the other. Its grade and exact place are in the full report.

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Chapter 2

Corrosion

Salt air, middle Challenger 600: 2%

Also graded: damp air, freeze–thaw, near the coast and moisture in the air.

Not graded: not enough data.

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Chapter 3

Engines and brakes

Short runways, middle Challenger 600: 27%

Also graded: hot, high takeoffs; density altitude; dust and dry climate.

N605RB sits inside the middle half. Its grade and exact place are in the full report.

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05

The full report on N605RB.

All four chapters, every flight since January 2025 leg by leg, and the one thing to ask the seller.

TailCheck report

N605RB, Bombardier Challenger 600

$395one aircraft

  • All four chapters, graded
  • The one thing to ask, with records to request
  • Every flight since January 2025, leg by leg
  • Its weekly and seasonal rhythm
  • PDF, CSV and a share link; open for three months, kept up to date
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06

Questions about N605RB.

Cite this data

The Aircraft Ledger. “N605RB: how this Bombardier Challenger 600 is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n605rb

How many hours does N605RB fly a year?

About 152 estimated hours in the 12 months to 31 Jul 2026, across 35 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.

How often is N605RB flown?

N605RB made 35 tracked flights in the 12 months to 31 Jul 2026, about 3 a month, and flew on about 3 days in each month it flew.

Does N605RB fly internationally?

20 of its 35 tracked flights in the 12 months to 31 Jul 2026, 59%, crossed a border.

When did N605RB last fly?

It was last tracked in July 2026. We publish an aircraft’s flights seven days after they happen, and show them by month only.

Why don’t you show which airports N605RB uses?

We leave out airports, bases and exact dates on purpose. We show how an aircraft has been used, not where it goes.

What’s in the full TailCheck report for N605RB?

All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked Challenger 600s, plus the operational summary and operating rhythm, as a PDF, CSV and share link. It costs $395, or $995 a month for unlimited reports and Spotlight.

Fleet statisticsWhat’s normal for a Bombardier Challenger 600Buyer’s guideWhat to check before buying a used Challenger 600SpotlightCompare N605RB with other Challenger 600s

Method: flight data, every count a minimum. Estimated hours from time in the air. About our data

Owners and operators can ask us not to publish an aircraft. Data policy and opt-out

Not a substitute for a pre-purchase inspection or records review. TailCheck shows how an aircraft has been used, not its condition.