AIR.ONE

Beechcraft King Air 360 Er vs Bell 525 Relentless vs Bombardier Global 7500 vs Piper M600 Sls

The Beechcraft King Air 360ER is a twin‑turboprop business aircraft optimized for regional and remote operations, offering long endurance for its class with roughly 1,500–1,800 nautical miles of range and typically seating about 6–9 passengers in executive layouts. The Bell 525 Relentless is a large, fly‑by‑wire helicopter aimed at offshore and executive transport; its range is about 500–600 nautical miles with a typical passenger load around 12–16, depending on configuration. The Bombardier Global 7500 is an ultra‑long‑range business jet designed for intercontinental missions, capable of roughly 7,700 nautical miles and commonly arranged for about 14–19 passengers. The Piper M600 SLS is a single‑engine turboprop positioned as a high‑performance owner‑flown aircraft; it has about 1,400–1,600 nautical miles of range and usually carries 4–6 passengers. Overall, the Global 7500 leads on range and cabin capacity, the King Air 360ER balances runway flexibility with solid range, the M600 SLS prioritizes simplicity and efficiency, and the Bell 525 trades speed and range for vertical lift and point‑to‑point access.

SpecBell 525 RelentlessBombardier Global 7500Piper M600 SLS
Summary
Cockpit222
Min Crew221
Total Seats18146
Flight RulesIFR—IFR
ManufacturerBellBombardierPiper
Aircraft Name525 RelentlessGlobal 7500M600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)58077001406
Max Cabin Seats1619—
OEM VerificationVERIFIEDVERIFIEDVERIFIED
Useful Load (lbs)6675—2200
Standard Cabin Seats16124
Flight Deck (Base Spec)Garmin G5000HBombardier Vision (Pro Line Fusion)Garmin G3000
Max Cruise Speed (ktas)160516274
Base Aircraft Price (USD)$15,000,000$75,000,000$3,081,400
DOC / nm—$ 9.50$ 2.19
Aircraft Type—Business Jet—
DOC / nm / Seat—$ 0.79$ 0.55
Direct Operating Cost—$ 4,900$ 603
Cabin
Cockpit222
Min Crew221
Total Seats18145
Max Cabin Seats1619—
Standard Cabin Seats16124
Lavatory—2 Enclosed FlushingNo
Crew Rest—Yes—
Jump Seat—Yes—
Galley Location—FWDMID
Lavatory Location—FWD / AFT—
Galley / Refreshment—GalleyRefreshment Centre
Max Cabin Altitude (ft)—45008644
Cabin Pressure (psi)——5.6
SL Cabin Altitude (ft)——12600
Engine
FADECDual-ChannelYesNo
ModelCT7-2F1PassportPT6A-42A
Fuel TypeJetFuel——
TBO (hrs)4000On-Condition3600
Horsepower1800—600
No. of Engines221
Fuel Capacity (gal)641—260
Flat Rating—ISA + 15ISA + 55
Thrust (lbs)—18920—
Dimensions
Width (ft)25.77——
Length (ft)61.5811129.7
Cabin Width (ft)7.5884.1
Cabin Height (ft)4.56.24
Cabin Length (ft)15.554.512.3
Overall Height (ft)18.182711.3
Rotor Diameter (ft)54.5——
Baggage Volume Ext. (cu. ft)128——
Wingspan (ft)—10443.2
Cabin Volume (cu. ft)——165
Baggage Volume Int. (cu. ft)——20