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Bell 525 Relentless vs Daher Tbm 960 vs Enstrom 480b vs Piper M600 Sls

The Bell 525 Relentless and Enstrom 480B are helicopters, while the Daher TBM 960 and Piper M600 SLS are single‑engine turboprop airplanes. In category and mission, the Bell 525 is a larger, IFR-capable, fly‑by‑wire super‑medium helicopter aimed at offshore, corporate, and utility roles, whereas the Enstrom 480B is a lighter turbine helicopter typically used for training, patrol, and short‑range transport. The TBM 960 and M600 SLS are pressurized, high‑performance personal/business aircraft; the TBM emphasizes higher cruise speed and longer legs, while the M600 focuses on owner‑pilot capability with advanced avionics and autoland. For range, the TBM 960 generally offers the longest typical legs (roughly around 1,000+ nautical miles depending on reserves and power settings), the M600 SLS is somewhat shorter (often in the high‑hundreds of nautical miles), the Bell 525 is in the several‑hundred‑nautical‑mile class, and the Enstrom 480B is typically shorter still. For passenger capacity, the Bell 525 can seat around a dozen-plus depending on configuration, the TBM 960 and M600 SLS typically seat six, and the Enstrom 480B usually seats about five.

SpecBell 525 RelentlessDaher TBM 960Piper M600 SLS
Summary
Cockpit222
Min Crew211
Total Seats1866
Flight RulesIFRIFRIFR
ManufacturerBellDaher TBMPiper
Aircraft Name525 RelentlessTBM 960M600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)58017301406
Max Cabin Seats16
OEM VerificationVERIFIEDUn-VerifiedVERIFIED
Useful Load (lbs)667529082200
Standard Cabin Seats1644
Flight Deck (Base Spec)Garmin G5000HGarmin G3000Garmin G3000
Max Cruise Speed (ktas)160330274
Base Aircraft Price (USD)$15,000,000$4,450,000$3,081,400
DOC / nm$ 2.25$ 2.19
Aircraft TypeTurbo Prop
DOC / nm / Seat$ 0.56$ 0.55
Direct Operating Cost$ 744$ 603
Cabin
Cockpit222
Min Crew211
Total Seats1865
Max Cabin Seats16
Standard Cabin Seats1644
LavatoryNoNo
Galley LocationMIDMID
Cabin Pressure (psi)6.25.6
SL Cabin Altitude (ft)1439012600
Galley / RefreshmentRefreshment Centre
Max Cabin Altitude (ft)8644
Engine
FADECDual-ChannelYesNo
ModelCT7-2F1TBM 960PT6A-42A
Fuel TypeJetFuel
TBO (hrs)400035003600
Horsepower1800850600
No. of Engines21
Fuel Capacity (gal)641260
Flat RatingISA + 49ISA + 55
Dimensions
Width (ft)25.77
Length (ft)61.5835.329.7
Cabin Width (ft)7.5844.1
Cabin Height (ft)4.54.14
Cabin Length (ft)15.513.412.3
Overall Height (ft)18.1811.3
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)42.143.2
Cabin Volume (cu. ft)123165
Baggage Volume Int. (cu. ft)20