Bell 525 Relentless vs Leonardo Aw109 Grand New vs Leonardo Aw139

The Bell 525 Relentless is a larger, longer‑range “super‑medium” twin designed for higher payloads and longer sectors than typical light twins, making it better suited to offshore, corporate, or mission profiles where endurance and cabin volume matter. The Leonardo AW109 Grand New is a light twin, optimized for speed, agility, and lower operating footprint; it generally offers the shortest range of the three and the smallest cabin, typically configured for about six to seven passengers in executive layouts. The Leonardo AW139 sits between them in market intent but closer to the 525 in capability: it is a medium twin with a substantially larger cabin than the AW109 and is commonly configured around eight to twelve passengers depending on interior and mission equipment. On range, the AW139 and Bell 525 are broadly comparable and usually exceed the AW109, with the 525 often positioned at the upper end of this group thanks to its design focus on longer missions. Overall, AW109 prioritizes light, efficient transport; AW139 and 525 prioritize capacity and range.