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Bell 525 Relentless vs Enstrom 480b vs Piaggio Avanti Evo vs Pilatus Pc 24

The Bell 525 Relentless and Enstrom 480B are helicopters, while the Piaggio Avanti EVO and Pilatus PC-24 are fixed‑wing turboprops/jet. The Bell 525 is a large, long‑range twin‑engine helicopter aimed at offshore, corporate, and SAR missions, typically carrying around 12–16 passengers in an executive layout and offering roughly 500–600 nautical miles of range depending on configuration. The Enstrom 480B is a smaller single‑engine helicopter best suited to utility, training, and light corporate use, generally carrying up to 4–5 people with a much shorter practical range, roughly 200–300 nautical miles. Among the fixed‑wing options, the Piaggio Avanti EVO is a high‑speed twin‑turboprop business aircraft, commonly configured for about 6–9 passengers and capable of about 1,500–1,800 nautical miles. The Pilatus PC‑24 is a light twin‑jet designed for versatile operations including short/rough runway access; it typically seats about 6–10 passengers (with higher‑density layouts possible) and offers roughly 1,800–2,000 nautical miles. Overall, the PC‑24 and Avanti dominate speed and range, the Bell 525 leads helicopter capacity and mission flexibility, and the 480B serves the light, lower‑cost end.

SpecBell 525 RelentlessPiaggio Avanti EVOPilatus PC-24
Summary
Cockpit222
Min Crew211
Total Seats1886
Flight RulesIFRIFR
ManufacturerBellPiaggioPilatus
Aircraft Name525 RelentlessAvanti EVOPC-24
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)58015302076
Max Cabin Seats16710
OEM VerificationVERIFIEDUn-VerifiedVERIFIED
Useful Load (lbs)667537756680
Standard Cabin Seats1666
Flight Deck (Base Spec)Garmin G5000HRockwell Collins Pro Line 21Pilatus ACE (Primus Apex)
Max Cruise Speed (ktas)160400440
Base Aircraft Price (USD)$15,000,000$ 7,695,000$11,800,000
DOC / nm$ 3.71
DOC / nm / Seat$ 0.62
Direct Operating Cost$ 1,619
Cabin
Cockpit222
Min Crew211
Total Seats1886
Max Cabin Seats16710
Standard Cabin Seats1666
LavatoryNo1 Enclosed Flushing
Cabin Pressure (psi)99.3
Galley / RefreshmentNoOptional Refreshment Center
SL Cabin Altitude (ft)2400023500
Max Cabin Altitude (ft)6600
Crew RestNo
Jump SeatNo
Cargo DoorYes
Galley LocationFWD
Lavatory LocationFWD
Engine
FADECDual-ChannelYesYes
ModelCT7-2F1PT6A–66BFJ44-4A-QPM
Fuel TypeJetFuel
TBO (hrs)400036005000
Horsepower1800850
No. of Engines222
Fuel Capacity (gal)641
Flat RatingISA + 28ISA + 23
Fuel Burn (gph)100
Thrust (lbs)3435
Dimensions
Width (ft)25.77
Length (ft)61.5847.352.2
Cabin Width (ft)7.586.15.6
Cabin Height (ft)4.55.85.1
Cabin Length (ft)15.514.923
Overall Height (ft)18.1813.117.4
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)47.155.8
Cabin Width - Floor (ft)3.53.8
Baggage Volume Int. (cu. ft)35.290
Aisle Step (ft)Flat Floor
Cabin Length - Seating (ft)17