Challenger 300/350 vs Praetor 500: how the two fleets are really flown
On two of the four chapters' lead measures, the gap inside each fleet is bigger than the gap between the Challenger 300/350 and the Praetor 500. The clearest difference is short runways: the middle Challenger 300/350 at 20%, the middle Praetor 500 at 11%, with no overlap between their middle halves.
Bombardier Challenger 300/350 fleet statistics →Embraer Praetor 500 fleet statistics →
Fatigue
On hours per landing, the gap between the types is smaller than the spread inside either fleet: the middle Challenger 300/350 at 1.6 : 1, the middle Praetor 500 at 1.5 : 1.
What each landing and pressurization cycle costs the structure: landings per hour and short hops.
Hours per landing
Where the two fleets sitSide by side
Every active aircraft of each type in North America: 755 Challenger 300/350s and 124 Praetor 500s.| Measure | Challenger 300/350 median | Middle half | Praetor 500 median | Middle half |
|---|---|---|---|---|
| Hours per landing Each aircraft’s average flight hours per landing | 1.6 : 1 | 1.4–1.8 : 1 | 1.5 : 1 | 1.4–1.6 : 1 |
| Short hops Share of legs under 300 nm | 35% | 28–41% | 37% | 33–41% |
| Leg length Median leg | 481 nm | 389–595 nm | 420 nm | 380–460 nm |
Corrosion
On salt air, the gap between the types is smaller than the spread inside either fleet: the middle Praetor 500 at 8%, the middle Challenger 300/350 at 4%.
What the air around the fleet does overnight: salt, damp and freeze–thaw.
Salt air
Where the two fleets sitSide by side
Aircraft we can place on enough nights at known fields: 609 Challenger 300/350s and 106 Praetor 500s.| Measure | Challenger 300/350 median | Middle half | Praetor 500 median | Middle half |
|---|---|---|---|---|
| Salt air Nights within 2 km of the coast | 4% | <1–9% | 8% | 4–11% |
| Near the coast Nights within 10 km of the coast | 25% | 6–44% | 35% | 27–40% |
| Damp air Hours a day at 80% humidity or more, above freezing | 7.1 h | 6.0–8.1 h | 6.8 h | 6.2–7.6 h |
| Freeze–thaw Nights that froze and thawed within the day | 8% | 4–13% | 9% | 5–13% |
| Moisture in the air Average absolute humidity overnight | 9.5 g/m³ | 8.4–10.5 g/m³ | 9.6 g/m³ | 8.9–10.6 g/m³ |
Engines and brakes
On short runways, the fleets part: the middle Challenger 300/350 at 20%, the middle Praetor 500 at 11%, and their middle halves don't overlap.
What departures ask of engines, brakes and tires: heat and height, and runway length.
Short runways
Where the two fleets sitSide by side
Departures we could assess: 755 Challenger 300/350s and 124 Praetor 500s.| Measure | Challenger 300/350 median | Middle half | Praetor 500 median | Middle half |
|---|---|---|---|---|
| Short runways Departures where the longest runway was under 1.25× the takeoff distance | 20% | 15–26% | 11% | 8–14% |
| Hot, high takeoffs Departures at 5,000 ft density altitude or more | 6% | 3–9% | 7% | 4–10% |
| Density altitude Typical density altitude at takeoff | 1,432 ft | 1,206–1,717 ft | 1,531 ft | 1,411–1,663 ft |
Utilization
On flights a month, the types sit further apart than the middle half of either fleet spans: the middle Praetor 500 at 31, the middle Challenger 300/350 at 10.
How steadily each fleet is used: flights, flying days and estimated hours.
Flights a month
Where the two fleets sitSide by side
Every active Challenger 300/350 (755) and every active Praetor 500 (124). Each type uses the tracking rule its own fleet page uses.| Measure | Challenger 300/350 median | Middle half | Praetor 500 median | Middle half |
|---|---|---|---|---|
| Flights a month In the months it flew | 9.8 | 5.8–25.8 | 30.9 | 9.1–35.6 |
| Days flown a month Days with at least one flight | 6.6 | 4.3–14.0 | 15.1 | 5.7–17.1 |
| Estimated hours a year From time in the air | ≈194 h | 114–527 h | ≈549 h | 154–644 h |
Choosing between a Challenger 300/350 and a Praetor 500?
Check both tails, not the types.
Enter the two tails on your shortlist. TailCheck grades each one on Fatigue, Corrosion, Engines and brakes, and Utilization against its own type, then puts them side by side.
Trip-length mix
36% of Challenger 300/350 legs and 38% of Praetor 500 legs were under 300 nm, a gap of 2 percentage points; 24% and 19% were over 900 nm.
| Leg length (nm) | Challenger 300/350 | Praetor 500 |
|---|---|---|
| <150 | 16% | 17% |
| 150–300 | 20% | 21% |
| 300–450 | 13% | 14% |
| 450–600 | 10% | 11% |
| 600–900 | 17% | 17% |
| 900–1,200 | 11% | 10% |
| 1,200–1,800 | 8% | 7% |
| 1,800+ | 5% | 2% |
Share of legs by length in nautical miles, 1 Aug 2025 – 31 Jul 2026: 129,080 legs by 755 Challenger 300/350s and 33,416 legs by 124 Praetor 500s, every leg with a known distance. The Challenger 300/350's trips bunch at 150–300 nm, the Praetor 500's at 150–300 nm.
Challenger 300/350 vs Praetor 500: on paper
Certified figures come from each type certificate data sheet, the rest from the manufacturer. Each figure names its source; a range covers the variants one page tracks together; a dash means we don’t have a source for that figure yet.
| Measure | Challenger 300/350 | Praetor 500 |
|---|---|---|
| Range (manufacturer) | 3,065–3,200 nmChallenger 300: Manufacturer (archived spec page, 29 Sep 2012); Challenger 350: Manufacturer (archived spec page, 14 Jul 2021) | 3,340 nm (Praetor 500)Manufacturer (brochure, PDF dated 7 Oct 2020) |
| High-speed cruise (manufacturer) | Mach 0.82Challenger 300: Manufacturer (archived spec page, 29 Sep 2012); Challenger 350: Manufacturer (archived spec page, 14 Jul 2021) | 466 kt (Praetor 500)Manufacturer (brochure, PDF dated 7 Oct 2020) |
| Takeoff distance (manufacturer) | 4,835 ft (Challenger 350)Manufacturer (archived spec page, 14 Jul 2021) | 4,222 ft (Praetor 500)Manufacturer (brochure, PDF dated 7 Oct 2020) |
| Cabin length (manufacturer) | 25 ft 2 in (Challenger 350)Manufacturer (archived spec page, 14 Jul 2021) | —Not in our sources yet |
| Maximum takeoff weight (certified) | 38,500–40,600 lbUK CAA TCDS UK.TC.A.00099 Issue 2, p.9 | ≈ 35,760–37,570 lbEASA TCDS EASA.IM.A.526 Issue 12, p.17; pounds converted from the kilograms stated, approximate |
| Fuel capacity (certified) | 14,150 lbUK CAA TCDS UK.TC.A.00099 Issue 2, p.7 | ≈ 12,130–13,050 lbPraetor 500: EASA TCDS EASA.IM.A.526 Issue 12, p.17; pounds converted from the kilograms stated, approximate; Legacy 450: EASA TCDS EASA.IM.A.526 Issue 12, p.16; pounds converted from the kilograms stated, approximate |
| Maximum operating altitude (certified) | 45,000 ftEASA TCDS EASA.IM.A.080 Issue 11, p.7 | —Not in our sources yet |
| Passenger seats (certified) | Up to 16EASA TCDS EASA.IM.A.080 Issue 11, p.8 | Up to 9EASA TCDS EASA.IM.A.526 Issue 12, p.17 |
Challenger 300/350 vs Praetor 500: questions
Which is flown more, the Challenger 300/350 or the Praetor 500?
The Praetor 500, by about 355 estimated hours a year: the middle Praetor 500 flew ≈549 h a year, the middle Challenger 300/350 ≈194 h. That is a fleet median: the middle half of Praetor 500s logged 154–644 h and of Challenger 300/350s 114–527 h, so one aircraft can sit far from its type. In flights, the medians are 10 a month for the Challenger 300/350 and 31 for the Praetor 500.
Which lands more often for its hours, the Challenger 300/350 or the Praetor 500?
The Praetor 500: its middle aircraft flies 1.5 hours per landing, against 1.6 for the Challenger 300/350, 0.1 hours fewer per landing. More landings per hour means more pressurization cycles for the same time in the air. Short hops, legs under 300 nm, make up 35% of the middle Challenger 300/350's legs and 37% of the middle Praetor 500's.
Which flies longer trips, the Challenger 300/350 or the Praetor 500?
The Challenger 300/350, by 61 nm on the median leg: 481 nm for the middle aircraft, against 420 nm for the Praetor 500. 36% of Challenger 300/350 legs and 38% of Praetor 500 legs were under 300 nm, a gap of 2 percentage points; 24% and 19% were over 900 nm.
Which spends more nights by the sea, the Challenger 300/350 or the Praetor 500?
The Praetor 500, by 4 percentage points: its middle aircraft spends 8% of its nights within 2 km of the coast, the middle Challenger 300/350 4%. Salt air is one of the corrosion inputs a TailCheck report grades for one aircraft against its own type.
Which has the longer range on paper, the Challenger 300/350 or the Praetor 500?
The manufacturers quote 3,065–3,200 nm for the Challenger 300/350 and 3,340 nm (Praetor 500) for the Praetor 500. Those are book figures at stated conditions; how far the fleets actually fly is in the trip-length mix above.
Does this comparison include the Challenger 350?
Yes. The tracking data doesn't tell the Challenger 300 and Challenger 350 apart, so the Challenger 300/350 figures here cover all of them. The specs table names a figure’s variants where the sources separate them.
Does this comparison include the Praetor 500?
Yes. The tracking data doesn't tell the Legacy 450 and Praetor 500 apart, so the Praetor 500 figures here cover all of them. The specs table names a figure’s variants where the sources separate them.
Cite this data
The Aircraft Ledger. “Bombardier Challenger 300/350 vs Embraer Praetor 500.” Data to 31 July 2026. theaircraftledger.com/compare/bombardier-challenger-300-vs-embraer-praetor-500
Embed a chart
<iframe src="https://theaircraftledger.com/embed/compare/bombardier-challenger-300-vs-embraer-praetor-500/fatigue" title="Fatigue: Hours per landing" width="100%" height="360" style="border:0;max-width:960px" loading="lazy"></iframe>Method: Challenger 300/350s and Praetor 500s with most departures in North America, ADS-B tracking. Flight measures cover 1 Aug 2025 – 31 Jul 2026; each figure is the median of its own fleet, with the middle half (25th–75th percentile). Estimated hours from time in the air. We assume the longest runway at each field, so short-runway figures are conservative. Specifications from type certificate data sheets and the manufacturers, each cited. About our data