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Beechcraft King Air 360 Er vs Bell 525 Relentless vs Daher Tbm 960 vs Enstrom 480b

The Beechcraft King Air 360ER and Daher TBM 960 are fixed‑wing turboprops, while the Bell 525 Relentless and Enstrom 480B are helicopters. For range, the King Air 360ER is the longest‑leg option of the four, designed for extended missions and typically offering roughly 1,500–1,800 nm class capability depending on configuration. The TBM 960 is a fast single‑engine turboprop with strong point‑to‑point range, generally around the 1,000–1,700 nm class depending on reserves and cruise choices. The Bell 525 is a long‑range super‑medium helicopter, commonly in the ~500–700 nm class, optimized for offshore and executive transport. The Enstrom 480B is a light turbine helicopter with shorter legs, typically a few hundred nautical miles. For passenger capacity, the King Air 360ER usually seats about 6–9 passengers, the TBM 960 commonly carries 4–6 passengers, the Bell 525 typically accommodates around 12–16 passengers depending on layout, and the Enstrom 480B generally carries 4 passengers plus a pilot.

SpecBell 525 RelentlessDaher TBM 960
Summary
Cockpit22
Min Crew21
Total Seats186
Flight RulesIFRIFR
ManufacturerBellDaher TBM
Aircraft Name525 RelentlessTBM 960
CertificationFAA / EASAFAA / EASA
Max Range (nm)5801730
Max Cabin Seats16
OEM VerificationVERIFIEDUn-Verified
Useful Load (lbs)66752908
Standard Cabin Seats164
Flight Deck (Base Spec)Garmin G5000HGarmin G3000
Max Cruise Speed (ktas)160330
Base Aircraft Price (USD)$15,000,000$4,450,000
DOC / nm$ 2.25
Aircraft TypeTurbo Prop
DOC / nm / Seat$ 0.56
Direct Operating Cost$ 744
Cabin
Cockpit22
Min Crew21
Total Seats186
Max Cabin Seats16
Standard Cabin Seats164
LavatoryNo
Galley LocationMID
Cabin Pressure (psi)6.2
SL Cabin Altitude (ft)14390
Engine
FADECDual-ChannelYes
ModelCT7-2F1TBM 960
Fuel TypeJetFuel
TBO (hrs)40003500
Horsepower1800850
No. of Engines2
Fuel Capacity (gal)641
Flat RatingISA + 49
Dimensions
Width (ft)25.77
Length (ft)61.5835.3
Cabin Width (ft)7.584
Cabin Height (ft)4.54.1
Cabin Length (ft)15.513.4
Overall Height (ft)18.18
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)42.1
Cabin Volume (cu. ft)123