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Airbus Helicopters H225 vs Bell 525 Relentless vs Gulfstream G700 vs Piper M600 Sls

The Airbus H225 and Bell 525 Relentless are large, twin‑engine helicopters suited to vertical lift missions, while the Gulfstream G700 and Piper M600 SLS are fixed‑wing business aircraft aimed at point‑to‑point travel. In category, the H225 is a heavy multi‑role helicopter (often offshore/SAR/utility), and the 525 is a modern “super‑medium” class helicopter focused on corporate and VIP transport. The G700 is an ultra‑long‑range business jet, whereas the M600 SLS is a single‑engine pressurized turboprop. For range, the G700 is by far the longest‑leg option, designed for true intercontinental routes. The M600 SLS offers solid regional range but is not in the same league as the G700. Both helicopters have shorter ranges than the jets and typically operate in the few‑hundred‑nautical‑mile class depending on mission fit, with the H225 generally offering strong endurance for its class and the 525 targeting longer legs among helicopters. Passenger capacity also diverges: the G700 can carry the most people in typical business configurations, the H225 can be configured for high passenger loads in utility/offshore layouts, the 525 usually carries fewer in premium seating, and the M600 SLS is the smallest, typically seating around five to six.

SpecAIRBUS H225Bell 525 RelentlessGulfstream G700Piper M600 SLS
Summary
Cockpit2232
DOC / nm$ 20.87$ 2.19
Min Crew2241
Total Seats2118166
Flight RulesIFRIFRIFR
ManufacturerAirbus HelicoptersBellGulfstreamPiper
Aircraft NameH225525 RelentlessG700M600
CertificationFAA / EASAFAA / EASAIn DevelopmentFAA / EASA
Max Range (nm)45458075001406
DOC / nm / Seat$ 0.99$ 0.55
Max Cabin Seats281619
OEM VerificationUn-VerifiedVERIFIEDUn-VerifiedVERIFIED
Useful Load (lbs)1192966752200
Standard Cabin Seats1916124
Direct Operating Cost$ 2,963$ 603
Flight Deck (Base Spec)EFISGarmin G5000HGulfstream Symmetry Flight DeckGarmin G3000
Max Cruise Speed (ktas)142160516274
Base Aircraft Price (USD)$ 29,500,000$15,000,000$78,000,000$3,081,400
Cabin
Cockpit2222
Min Crew2241
Total Seats2118165
Max Cabin Seats281619
Standard Cabin Seats1916124
Crew RestOptional
Jump SeatYes
Galley LocationFWDMID
Lavatory LocationFWD / AFT
LavatoryNo
Cabin Pressure (psi)5.6
Galley / RefreshmentRefreshment Centre
SL Cabin Altitude (ft)12600
Max Cabin Altitude (ft)8644
Engine
FADECYesDual-ChannelNo
ModelMakila 2A1CT7-2F1Pearl 700PT6A-42A
Fuel TypeJetFuelJetFuel
TBO (hrs)35004000On Condition3600
Horsepower21001800600
No. of Engines2221
Fuel Capacity (gal)684641260
Thrust (lbs)18250
Flat RatingISA + 55
Dimensions
Length (ft)63.461.58109.929.7
Overall Height (ft)16.318.1825.411.3
Rotor Diameter (ft)53.254.5
Cabin Volume (cu. ft)547165
Width (ft)25.77
Cabin Width (ft)7.588.24.1
Cabin Height (ft)4.56.254
Cabin Length (ft)15.556.912.3
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)10343.2
Aisle Step (ft)Flat Floor
Baggage Volume Int. (cu. ft)19520