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Bell 525 Relentless vs Dassault Falcon 8x vs Robinson R66 vs Sikorsky S 92

The Bell 525 Relentless and Sikorsky S-92 are medium/large, twin‑engine helicopters aimed at offshore, corporate, and utility missions, while the Robinson R66 is a light, single‑engine helicopter typically used for shorter hops, training, and personal/business travel. The Dassault Falcon 8X is a long‑range business jet, optimized for high‑speed intercity and intercontinental trips rather than vertical lift. In range, the Falcon 8X is in a different class, offering intercontinental capability of roughly 6,000+ nautical miles. The Bell 525 and S-92 provide long helicopter legs typically in the several-hundred‑nautical‑mile range, suitable for offshore sectors and regional point‑to‑point travel without runways. The Robinson R66 generally has the shortest range, also in the several-hundred‑nautical‑mile bracket but below the larger twins in typical operational capability. For passenger capacity, the Falcon 8X commonly carries around 12–16 passengers in executive layouts. The Sikorsky S-92 is often configured for about 19 passengers, especially in offshore transport. The Bell 525 typically seats fewer than the S-92 but more than the R66, commonly around 10–16 depending on configuration. The Robinson R66 is smallest, seating 4 passengers plus a pilot.

SpecBell 525 RelentlessDassault Falcon 8XSikorsky S-92
Summary
Cockpit222
Min Crew222
Total Seats181721
Flight RulesIFRIFR
ManufacturerBellDassault FalconSikorsky
Aircraft Name525 Relentless8XS-92
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)5806450439
Max Cabin Seats161619
OEM VerificationVERIFIEDVERIFIEDUn-Verified
Useful Load (lbs)6675369007417
Standard Cabin Seats161419
Flight Deck (Base Spec)Garmin G5000HHoneywell Primus EASy IIEFIS
Max Cruise Speed (ktas)160516155
Base Aircraft Price (USD)$15,000,000$ 62,500,000 $30,650,000
DOC / nm$ 7.66$ 19.79
DOC / nm / Seat$ 0.64$ 0.94
Direct Operating Cost$ 3,805$ 3,068
Cabin
Cockpit232
Min Crew222
Total Seats181721
Max Cabin Seats161619
Standard Cabin Seats161419
Lavatory2 Enclosed Flushing
Crew RestNo
Jump SeatYes
Galley LocationFWD
Lavatory LocationFWD / AFT
Cabin Pressure (psi)10.2
Galley / RefreshmentGalley
SL Cabin Altitude (ft)29200
Max Cabin Altitude (ft)3900
Engine
FADECDual-ChannelYesYes
ModelCT7-2F1PW307DCT7-8A
Fuel TypeJetFuelJetFuel
TBO (hrs)4000On-Condition4000
Horsepower18002520
No. of Engines231
Fuel Capacity (gal)641760
Flat RatingISA + 17
Thrust (lbs)6722
Dimensions
Width (ft)25.77
Length (ft)61.5880.2
Cabin Width (ft)7.587.7
Cabin Height (ft)4.56.2
Cabin Length (ft)15.542.7
Overall Height (ft)18.1826.117.8
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128140
Wingspan (ft)86.3
Cabin Volume (cu. ft)1695775
Cabin Width - Floor (ft)6.3
Cabin Length - Seating (ft)29.2
Baggage Volume Int. (cu. ft)140