AIR.ONE

Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Daher Tbm 960 vs Piper M600 Sls

The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter aimed at offshore/VIP missions; it offers roughly a 500–600 nm class range and typically carries about 12–16 passengers depending on layout. The Cessna 208B Grand Caravan EX is a rugged single‑engine utility turboprop optimized for short/rough strips; it trades speed for payload flexibility, with about a 900–1,000 nm class range and seating commonly up to 9 passengers (with higher-density commuter configurations possible). The Daher TBM 960 is a high‑performance single‑engine turboprop in the personal/business category; it prioritizes speed and efficiency with roughly a 1,400–1,700 nm class range and typically 4–6 passengers in executive seating. The Piper M600 SLS is also a personal/business single‑engine turboprop, generally slower and shorter‑ranged than the TBM but still fast; expect about a 1,000–1,500 nm class range and typically 4–6 passengers. Overall, the 525 leads for rotorcraft mission flexibility, the Caravan for utility and cabin volume, and the TBM 960 for fast, long‑range owner-flown travel.

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