AIR.ONE

Bell 525 Relentless vs Dassault Falcon 8x vs Piper M600 Sls

The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter aimed at offshore, corporate, and utility missions. It sits in a different category than the other two, trading speed and altitude for vertical takeoff/landing flexibility. Its typical mission range is roughly in the 500–700 nautical mile class depending on load and reserves, and it generally carries a pilot plus about 10–15 passengers in high-density configurations, with fewer for VIP layouts. The Dassault Falcon 8X is an ultra‑long‑range, three‑engine business jet optimized for intercontinental travel. It offers the greatest range of the three at about 6,450 nautical miles, and typically seats 12–16 passengers in executive configurations (with maximum certified capacity higher, depending on layout). The Piper M600 SLS is a single‑engine, pressurized turboprop positioned as a high‑performance personal and owner‑flown aircraft. Its range is roughly around 1,000–1,400 nautical miles depending on power settings and payload, and it usually carries 1–5 passengers plus the pilot (up to six seats total).

SpecBell 525 RelentlessDassault Falcon 8XPiper M600 SLS
Summary
Cockpit222
Min Crew221
Total Seats18176
Flight RulesIFRIFR
ManufacturerBellDassault FalconPiper
Aircraft Name525 Relentless8XM600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)58064501406
Max Cabin Seats1616
OEM VerificationVERIFIEDVERIFIEDVERIFIED
Useful Load (lbs)6675369002200
Standard Cabin Seats16144
Flight Deck (Base Spec)Garmin G5000HHoneywell Primus EASy IIGarmin G3000
Max Cruise Speed (ktas)160516274
Base Aircraft Price (USD)$15,000,000$ 62,500,000$3,081,400
DOC / nm$ 7.66$ 2.19
DOC / nm / Seat$ 0.64$ 0.55
Direct Operating Cost$ 3,805$ 603
Cabin
Cockpit232
Min Crew221
Total Seats18175
Max Cabin Seats1616
Standard Cabin Seats16144
Lavatory2 Enclosed FlushingNo
Crew RestNo
Jump SeatYes
Galley LocationFWDMID
Lavatory LocationFWD / AFT
Cabin Pressure (psi)10.25.6
Galley / RefreshmentGalleyRefreshment Centre
SL Cabin Altitude (ft)2920012600
Max Cabin Altitude (ft)39008644
Engine
FADECDual-ChannelYesNo
ModelCT7-2F1PW307DPT6A-42A
Fuel TypeJetFuel
TBO (hrs)4000On-Condition3600
Horsepower1800600
No. of Engines231
Fuel Capacity (gal)641260
Flat RatingISA + 17ISA + 55
Thrust (lbs)6722
Dimensions
Width (ft)25.77
Length (ft)61.5880.229.7
Cabin Width (ft)7.587.74.1
Cabin Height (ft)4.56.24
Cabin Length (ft)15.542.712.3
Overall Height (ft)18.1826.111.3
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)86.343.2
Cabin Volume (cu. ft)1695165
Cabin Width - Floor (ft)6.3
Cabin Length - Seating (ft)29.2
Baggage Volume Int. (cu. ft)14020