AIR.ONE

Beechcraft King Air 360 Er vs Bell 525 Relentless vs Md Helicopters (mcdonnell Douglas) 902 Explorer vs Piper M600 Sls

The Beechcraft King Air 360ER is a twin‑turboprop fixed‑wing aircraft aimed at long regional missions; it offers the longest practical range of this group at roughly 1,500 nautical miles and typically carries about 6 to 9 passengers depending on interior. The Piper M600 SLS is a single‑engine turboprop fixed‑wing aircraft optimized for owner‑pilot operation; it has a moderate range of about 650 nautical miles and generally seats up to 5 passengers plus a pilot. The Bell 525 Relentless is a large, twin‑engine helicopter designed for corporate and offshore roles; it trades airplane‑like range for vertical access, with roughly 500 to 560 nautical miles of range and a typical passenger load around 10 to 12. The MD Helicopters 902 Explorer is a light twin‑engine helicopter focused on utility, air medical, and law enforcement; it has the shortest range here at roughly 300 to 350 nautical miles and usually carries about 4 to 6 passengers.

SpecBell 525 RelentlessPiper M600 SLS
Summary
Cockpit22
Min Crew21
Total Seats186
Flight RulesIFRIFR
ManufacturerBellPiper
Aircraft Name525 RelentlessM600
CertificationFAA / EASAFAA / EASA
Max Range (nm)5801406
Max Cabin Seats16
OEM VerificationVERIFIEDVERIFIED
Useful Load (lbs)66752200
Standard Cabin Seats164
Flight Deck (Base Spec)Garmin G5000HGarmin G3000
Max Cruise Speed (ktas)160274
Base Aircraft Price (USD)$15,000,000$3,081,400
DOC / nm$ 2.19
DOC / nm / Seat$ 0.55
Direct Operating Cost$ 603
Cabin
Cockpit22
Min Crew21
Total Seats185
Max Cabin Seats16
Standard Cabin Seats164
LavatoryNo
Galley LocationMID
Cabin Pressure (psi)5.6
Galley / RefreshmentRefreshment Centre
SL Cabin Altitude (ft)12600
Max Cabin Altitude (ft)8644
Engine
FADECDual-ChannelNo
ModelCT7-2F1PT6A-42A
Fuel TypeJetFuel
TBO (hrs)40003600
Horsepower1800600
No. of Engines21
Fuel Capacity (gal)641260
Flat RatingISA + 55
Dimensions
Width (ft)25.77
Length (ft)61.5829.7
Cabin Width (ft)7.584.1
Cabin Height (ft)4.54
Cabin Length (ft)15.512.3
Overall Height (ft)18.1811.3
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)43.2
Cabin Volume (cu. ft)165
Baggage Volume Int. (cu. ft)20