Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Piaggio Avanti Evo vs Robinson R66
The Bell 525 Relentless and Robinson R66 are helicopters, while the Cessna 208B Grand Caravan EX and Piaggio Avanti EVO are fixed‑wing turboprops. In category and mission, the Bell 525 is a modern, medium twin‑engine helicopter aimed at offshore, corporate, and utility roles; the R66 is a lighter single‑engine turbine helicopter typically used for private, training, and light utility work. The Cessna 208B is a rugged single‑engine utility aircraft optimized for short, unimproved strips and cargo/passenger hauling, whereas the Piaggio Avanti EVO is a high‑speed, pressurized executive turboprop geared toward business travel efficiency. For range, the Avanti EVO and Bell 525 generally lead this group for longer point‑to‑point missions, the Grand Caravan EX offers solid regional range depending on payload, and the R66 is usually the shortest‑range option. For passenger capacity, the Grand Caravan EX commonly carries the most in commuter seating (often up to around 9–14 depending on configuration and regulations), the Bell 525 typically seats around the mid‑teens including crew in executive layouts, the Avanti EVO is usually configured for roughly 7–9 passengers, and the R66 is typically up to 5 seats total including the pilot.
| Spec | Bell 525 Relentless | Piaggio Avanti EVO |
|---|---|---|
| Summary | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 8 |
| Flight Rules | IFR | IFR |
| Manufacturer | Bell | Piaggio |
| Aircraft Name | 525 Relentless | Avanti EVO |
| Certification | FAA / EASA | FAA / EASA |
| Max Range (nm) | 580 | 1530 |
| Max Cabin Seats | 16 | 7 |
| OEM Verification | VERIFIED | Un-Verified |
| Useful Load (lbs) | 6675 | 3775 |
| Standard Cabin Seats | 16 | 6 |
| Flight Deck (Base Spec) | Garmin G5000H | Rockwell Collins Pro Line 21 |
| Max Cruise Speed (ktas) | 160 | 400 |
| Base Aircraft Price (USD) | $15,000,000 | $ 7,695,000 |
| Cabin | ||
| Cockpit | 2 | 2 |
| Min Crew | 2 | 1 |
| Total Seats | 18 | 8 |
| Max Cabin Seats | 16 | 7 |
| Standard Cabin Seats | 16 | 6 |
| Lavatory | — | No |
| Cabin Pressure (psi) | — | 9 |
| Galley / Refreshment | — | No |
| SL Cabin Altitude (ft) | — | 24000 |
| Max Cabin Altitude (ft) | — | 6600 |
| Engine | ||
| FADEC | Dual-Channel | Yes |
| Model | CT7-2F1 | PT6A–66B |
| Fuel Type | JetFuel | — |
| TBO (hrs) | 4000 | 3600 |
| Horsepower | 1800 | 850 |
| No. of Engines | 2 | 2 |
| Fuel Capacity (gal) | 641 | — |
| Flat Rating | — | ISA + 28 |
| Fuel Burn (gph) | — | 100 |
| Dimensions | ||
| Width (ft) | 25.77 | — |
| Length (ft) | 61.58 | 47.3 |
| Cabin Width (ft) | 7.58 | 6.1 |
| Cabin Height (ft) | 4.5 | 5.8 |
| Cabin Length (ft) | 15.5 | 14.9 |
| Overall Height (ft) | 18.18 | 13.1 |
| Rotor Diameter (ft) | 54.5 | — |
| Baggage Volume Ext. (cu. ft) | 128 | — |
| Wingspan (ft) | — | 47.1 |
| Cabin Width - Floor (ft) | — | 3.5 |
| Baggage Volume Int. (cu. ft) | — | 35.2 |