AIR.ONE

Bell 525 Relentless vs Leonardo Aw189 vs Piaggio Avanti Evo vs Sikorsky S 92

The Bell 525 Relentless and Leonardo AW189 are modern super‑medium twin helicopters aimed at offshore, corporate, and utility missions, while the Sikorsky S‑92 is a larger heavy twin helicopter typically chosen for higher payload offshore transport, SAR, and VIP configurations. The Piaggio Avanti EVO is the outlier: a twin‑turboprop fixed‑wing aircraft optimized for fast point‑to‑point business travel rather than vertical lift. On range, the Avanti EVO generally offers the longest reach for typical passenger operations because fixed‑wing efficiency enables longer legs than helicopters. Among the helicopters, the S‑92 commonly provides strong long‑range offshore capability, with the 525 and AW189 offering competitive ranges in the super‑medium class depending on tanks, payload, and reserves. On passenger capacity, the S‑92 usually seats the most in transport layouts (often around 19), reflecting its heavy category. The AW189 and Bell 525 typically sit below that in common configurations (roughly mid‑teens to high‑teens). The Avanti EVO generally carries fewer passengers in a business cabin (often 6–9) but does so at higher cruise speeds and with airport-to-airport efficiency.

SpecBell 525 RelentlessAGUSTA / LEONARDO AW189Piaggio Avanti EVOSikorsky S-92
Summary
Cockpit2222
Min Crew2112
Total Seats1821821
Flight RulesIFRIFRIFRIFR
ManufacturerBellLeonardoPiaggioSikorsky
Aircraft Name525 RelentlessAW189Avanti EVOS-92
CertificationFAA / EASAFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)5806511530439
Max Cabin Seats1619719
OEM VerificationVERIFIEDUn-VerifiedUn-VerifiedUn-Verified
Useful Load (lbs)6675—37757417
Standard Cabin Seats1619619
Flight Deck (Base Spec)Garmin G5000HEFISRockwell Collins Pro Line 21EFIS
Max Cruise Speed (ktas)160155400155
Base Aircraft Price (USD)$15,000,000$2,413,000$ 7,695,000 $30,650,000
DOC / nm—$ 15.57—$ 19.79
DOC / nm / Seat—$ 0.74—$ 0.94
Direct Operating Cost—$ 2,413—$ 3,068
Cabin
Cockpit2222
Min Crew2112
Total Seats1821821
Max Cabin Seats1619719
Standard Cabin Seats1619619
Lavatory——No—
Cabin Pressure (psi)——9—
Galley / Refreshment——No—
SL Cabin Altitude (ft)——24000—
Max Cabin Altitude (ft)——6600—
Engine
FADECDual-ChannelYesYesYes
ModelCT7-2F1CT7-2E1PT6A–66BCT7-8A
Fuel TypeJetFuelJetFuel—JetFuel
TBO (hrs)4000400036004000
Horsepower180019838502520
No. of Engines2221
Fuel Capacity (gal)641——760
Flat Rating——ISA + 28—
Fuel Burn (gph)——100—
Dimensions
Width (ft)25.77———
Length (ft)61.5857.847.3—
Cabin Width (ft)7.58—6.1—
Cabin Height (ft)4.5—5.8—
Cabin Length (ft)15.5—14.9—
Overall Height (ft)18.1816.613.117.8
Rotor Diameter (ft)54.548——
Baggage Volume Ext. (cu. ft)12885—140
Cabin Volume (cu. ft)—395—775
Wingspan (ft)——47.1—
Cabin Width - Floor (ft)——3.5—
Baggage Volume Int. (cu. ft)——35.2—