AIR.ONE

Beechcraft King Air 360 Er vs Bell 525 Relentless vs Robinson R66 vs Sikorsky S 92

The Beechcraft King Air 360ER is a twin‑turboprop fixed‑wing airplane suited to longer point‑to‑point travel. It typically carries about 6–9 passengers (depending on configuration) and offers roughly 1,500–1,800 nautical miles of range, making it the best choice here for efficient regional to long‑regional trips between airports. The Bell 525 Relentless is a large, fly‑by‑wire twin‑engine helicopter aimed at offshore and corporate missions. It generally seats around 12–16 passengers and has an approximate range on the order of 500–700 nautical miles, trading speed and runway independence for shorter legs than the King Air. The Robinson R66 is a light single‑engine turbine helicopter for utility and short executive hops. It usually carries 4–5 occupants total and has a typical range around 300–350 nautical miles. The Sikorsky S‑92 is a heavy twin‑engine helicopter widely used offshore and for SAR/VIP transport. It commonly carries about 19 passengers (higher in some layouts) with a typical range around 500–600 nautical miles.

SpecBell 525 RelentlessSikorsky S-92
Summary
Cockpit22
Min Crew22
Total Seats1821
Flight RulesIFRIFR
ManufacturerBellSikorsky
Aircraft Name525 RelentlessS-92
CertificationFAA / EASAFAA / EASA
Max Range (nm)580439
Max Cabin Seats1619
OEM VerificationVERIFIEDUn-Verified
Useful Load (lbs)66757417
Standard Cabin Seats1619
Flight Deck (Base Spec)Garmin G5000HEFIS
Max Cruise Speed (ktas)160155
Base Aircraft Price (USD)$15,000,000 $30,650,000
DOC / nm$ 19.79
DOC / nm / Seat$ 0.94
Direct Operating Cost$ 3,068
Cabin
Cockpit22
Min Crew22
Total Seats1821
Max Cabin Seats1619
Standard Cabin Seats1619
Engine
FADECDual-ChannelYes
ModelCT7-2F1CT7-8A
Fuel TypeJetFuelJetFuel
TBO (hrs)40004000
Horsepower18002520
No. of Engines21
Fuel Capacity (gal)641760
Dimensions
Width (ft)25.77
Length (ft)61.58
Cabin Width (ft)7.58
Cabin Height (ft)4.5
Cabin Length (ft)15.5
Overall Height (ft)18.1817.8
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128140
Cabin Volume (cu. ft)775