AIR.ONE

Bell 525 Relentless vs Boeing Bbj Max 9 vs Piper M600 Sls

The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter optimized for vertical access to city centers, offshore sites, and remote locations. Its category is rotorcraft, with a practical range on the order of roughly 500–600 nautical miles depending on payload and reserves, and it typically carries about 12–16 passengers in an executive layout. The Boeing BBJ MAX 9 is a large-cabin business jet based on the 737 MAX 9 airliner. It sits in the long-range VIP airliner category, offering intercontinental capability—typically around 6,000+ nautical miles with auxiliary fuel provisions—and accommodates the most people of the three: commonly a few dozen in VIP configurations, with capacity varying widely by interior, sometimes approaching 50+ passengers. The Piper M600 SLS is a single‑engine turboprop in the owner‑flown/light business category. It offers a moderate range of roughly 1,000–1,500 nautical miles depending on power settings and load, and it generally seats up to six occupants.

SpecBell 525 RelentlessBoeing BBJ MAX 9Piper M600 SLS
Summary
Cockpit222
Min Crew241
Total Seats18126
Flight RulesIFRIFR
ManufacturerBellBoeingPiper
Aircraft Name525 RelentlessBBJ MAX 9M600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)58063761406
Max Cabin Seats1635
OEM VerificationVERIFIEDVERIFIEDVERIFIED
Useful Load (lbs)6675771202200
Standard Cabin Seats1684
Flight Deck (Base Spec)Garmin G5000HHoneywellGarmin G3000
Max Cruise Speed (ktas)160470274
Base Aircraft Price (USD)$15,000,000$107,700,000$3,081,400
DOC / nm$ 15.74$ 2.19
DOC / nm / Seat$ 1.97$ 0.55
Direct Operating Cost$ 7,396$ 603
Cabin
Cockpit222
Min Crew241
Total Seats18105
Max Cabin Seats1635
Standard Cabin Seats1684
ConfigurationGreen Interior
Cabin Pressure (psi)95.6
SL Cabin Altitude (ft)2400012600
LavatoryNo
Galley LocationMID
Galley / RefreshmentRefreshment Centre
Max Cabin Altitude (ft)8644
Engine
FADECDual-ChannelYesNo
ModelCT7-2F1LEAP-1BPT6A-42A
Fuel TypeJetFuel
TBO (hrs)4000On-Condition3600
Horsepower1800600
No. of Engines221
Fuel Capacity (gal)641260
Flat RatingISA + 15ISA + 55
Thrust (lbs)28000
Dimensions
Width (ft)25.77
Length (ft)61.58138.429.7
Cabin Width (ft)7.5811.64.1
Cabin Height (ft)4.57.14
Cabin Length (ft)15.5107.212.3
Overall Height (ft)18.1840.311.3
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)1281485
Wingspan (ft)117.943.2
Aisle Step (ft)Flat Floor
Cabin Width - Floor (ft)10.7
Cabin Length - Seating (ft)100.6
Cabin Volume (cu. ft)165
Baggage Volume Int. (cu. ft)20