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Bell 525 Relentless vs Gulfstream G700 vs Robinson R66 vs Sikorsky S 92

The Bell 525 Relentless and Sikorsky S-92 are large, twin‑engine helicopters, while the Gulfstream G700 is an ultra‑long‑range business jet and the Robinson R66 is a light, single‑engine helicopter. In range, the G700 is in a different class, capable of roughly 7,000+ nautical miles, suitable for intercontinental nonstop missions. The Bell 525 is a medium helicopter with a typical range on the order of 500–600 nautical miles, aimed at offshore and corporate shuttle roles. The Sikorsky S-92, a heavier transport helicopter, is broadly comparable in mission type, generally around 500 nautical miles depending on configuration, and optimized for offshore, SAR, and utility transport. The Robinson R66 has the shortest reach, roughly 300+ nautical miles, and is commonly used for private, training, and light commercial work. For passenger capacity, the G700 typically carries about 10–19 passengers in executive layouts. The S-92 can carry about 19 passengers in high‑density seating, while the Bell 525 is typically around the mid‑teens. The R66 usually seats about 4 passengers plus a pilot.

SpecBell 525 RelentlessGulfstream G700Sikorsky S-92
Summary
Cockpit232
Min Crew242
Total Seats181621
Flight RulesIFR—IFR
ManufacturerBellGulfstreamSikorsky
Aircraft Name525 RelentlessG700S-92
CertificationFAA / EASAIn DevelopmentFAA / EASA
Max Range (nm)5807500439
Max Cabin Seats161919
OEM VerificationVERIFIEDUn-VerifiedUn-Verified
Useful Load (lbs)6675—7417
Standard Cabin Seats161219
Flight Deck (Base Spec)Garmin G5000HGulfstream Symmetry Flight DeckEFIS
Max Cruise Speed (ktas)160516155
Base Aircraft Price (USD)$15,000,000$78,000,000 $30,650,000
DOC / nm——$ 19.79
DOC / nm / Seat——$ 0.94
Direct Operating Cost——$ 3,068
Cabin
Cockpit222
Min Crew242
Total Seats181621
Max Cabin Seats161919
Standard Cabin Seats161219
Crew Rest—Optional—
Jump Seat—Yes—
Galley Location—FWD—
Lavatory Location—FWD / AFT—
Engine
FADECDual-Channel—Yes
ModelCT7-2F1Pearl 700CT7-8A
Fuel TypeJetFuel—JetFuel
TBO (hrs)4000On Condition4000
Horsepower1800—2520
No. of Engines221
Fuel Capacity (gal)641—760
Thrust (lbs)—18250—
Dimensions
Width (ft)25.77——
Length (ft)61.58109.9—
Cabin Width (ft)7.588.2—
Cabin Height (ft)4.56.25—
Cabin Length (ft)15.556.9—
Overall Height (ft)18.1825.417.8
Rotor Diameter (ft)54.5——
Baggage Volume Ext. (cu. ft)128—140
Wingspan (ft)—103—
Aisle Step (ft)—Flat Floor—
Baggage Volume Int. (cu. ft)—195—
Cabin Volume (cu. ft)——775