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Bell 525 Relentless vs Gulfstream G700 vs Piaggio Avanti Evo

The Bell 525 Relentless is a fly-by-wire, twin‑engine helicopter aimed at high-speed offshore, corporate shuttle, and utility missions. Its practical range is generally in the several-hundred–nautical-mile class (often around 500–600 nm depending on payload and reserves), and it typically carries one or two pilots plus up to about 16 passengers in a high-density layout, with fewer for VIP comfort. The Gulfstream G700 is an ultra-long-range business jet built for intercontinental travel. It offers roughly 7,500 nm of range and is optimized for high-speed, high-altitude cruise with a large-cabin luxury interior. Passenger capacity varies by configuration, but it commonly seats around 12–19, with maximum layouts higher. The Piaggio Avanti EVO is a pressurized twin‑turboprop business aircraft positioned between light and midsize business jets for regional to transcontinental trips. Its range is typically around 1,400–1,800 nm, and it usually carries about 6–9 passengers in executive seating (with higher maximum occupancy possible depending on certification and layout).

SpecBell 525 RelentlessGulfstream G700Piaggio Avanti EVO
Summary
Cockpit232
Min Crew241
Total Seats18168
Flight RulesIFRIFR
ManufacturerBellGulfstreamPiaggio
Aircraft Name525 RelentlessG700Avanti EVO
CertificationFAA / EASAIn DevelopmentFAA / EASA
Max Range (nm)58075001530
Max Cabin Seats16197
OEM VerificationVERIFIEDUn-VerifiedUn-Verified
Useful Load (lbs)66753775
Standard Cabin Seats16126
Flight Deck (Base Spec)Garmin G5000HGulfstream Symmetry Flight DeckRockwell Collins Pro Line 21
Max Cruise Speed (ktas)160516400
Base Aircraft Price (USD)$15,000,000$78,000,000$ 7,695,000
Cabin
Cockpit222
Min Crew241
Total Seats18168
Max Cabin Seats16197
Standard Cabin Seats16126
Crew RestOptional
Jump SeatYes
Galley LocationFWD
Lavatory LocationFWD / AFT
LavatoryNo
Cabin Pressure (psi)9
Galley / RefreshmentNo
SL Cabin Altitude (ft)24000
Max Cabin Altitude (ft)6600
Engine
FADECDual-ChannelYes
ModelCT7-2F1Pearl 700PT6A–66B
Fuel TypeJetFuel
TBO (hrs)4000On Condition3600
Horsepower1800850
No. of Engines222
Fuel Capacity (gal)641
Thrust (lbs)18250
Flat RatingISA + 28
Fuel Burn (gph)100
Dimensions
Width (ft)25.77
Length (ft)61.58109.947.3
Cabin Width (ft)7.588.26.1
Cabin Height (ft)4.56.255.8
Cabin Length (ft)15.556.914.9
Overall Height (ft)18.1825.413.1
Rotor Diameter (ft)54.5
Baggage Volume Ext. (cu. ft)128
Wingspan (ft)10347.1
Aisle Step (ft)Flat Floor
Baggage Volume Int. (cu. ft)19535.2
Cabin Width - Floor (ft)3.5