AIR.ONE

Bell 525 Relentless vs Embraer Legacy 650 E vs Gulfstream G700 vs Piper M600 Sls

The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter aimed at offshore and VIP missions; compared with the jets it offers far less range (roughly in the 500–700 nm class, mission dependent) and typically carries about 8–16 passengers depending on interior, trading speed and range for vertical access and point‑to‑point flexibility. The Piper M600 SLS is a single‑engine turboprop for owner‑pilots; it generally seats 5–6 passengers (up to 7 including pilot) and reaches about 1,400–1,600 nm, prioritizing lower operating cost and short‑runway access over high‑altitude jet speed. The Embraer Legacy 650E is a large‑cabin business jet in the long‑range category, commonly configured for around 13 passengers and capable of roughly 3,900 nm, suiting transcontinental missions with a true large‑cabin feel. The Gulfstream G700 sits at the top end as an ultra‑long‑range, large‑cabin jet, typically carrying about 13–19 passengers and flying roughly 7,500 nm, enabling many nonstop intercontinental city pairs with maximum cabin volume and performance.

SpecBell 525 RelentlessGulfstream G700Piper M600 SLS
Summary
Cockpit232
Min Crew241
Total Seats18166
Flight RulesIFRIFR
ManufacturerBellGulfstreamPiper
Aircraft Name525 RelentlessG700M600
CertificationFAA / EASAIn DevelopmentFAA / EASA
Max Range (nm)58075001406
Max Cabin Seats1619
OEM VerificationVERIFIEDUn-VerifiedVERIFIED
Useful Load (lbs)66752200
Standard Cabin Seats16124
Flight Deck (Base Spec)Garmin G5000HGulfstream Symmetry Flight DeckGarmin G3000
Max Cruise Speed (ktas)160516274
Base Aircraft Price (USD)$15,000,000$78,000,000$3,081,400
DOC / nm$ 2.19
DOC / nm / Seat$ 0.55
Direct Operating Cost$ 603
Cabin
Cockpit222
Min Crew241
Total Seats18165
Max Cabin Seats1619
Standard Cabin Seats16124
Crew RestOptional
Jump SeatYes
Galley LocationFWDMID
Lavatory LocationFWD / AFT
LavatoryNo
Cabin Pressure (psi)5.6
Galley / RefreshmentRefreshment Centre
SL Cabin Altitude (ft)12600
Max Cabin Altitude (ft)8644
Engine
FADECDual-ChannelNo
ModelCT7-2F1Pearl 700PT6A-42A
Fuel TypeJetFuel
TBO (hrs)4000On Condition3600
Horsepower1800600
No. of Engines221
Fuel Capacity (gal)641260
Thrust (lbs)18250
Flat RatingISA + 55
Dimensions
Width (ft)25.77
Length (ft)61.58109.929.7
Cabin Width (ft)7.588.24.1
Cabin Height (ft)4.56.254
Cabin Length (ft)15.556.912.3
Overall Height (ft)18.1825.411.3
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)10343.2
Aisle Step (ft)Flat Floor
Baggage Volume Int. (cu. ft)19520
Cabin Volume (cu. ft)165