Airbus Helicopters H135 vs Airbus Helicopters H155 vs Leonardo Aw109 Grand New vs Leonardo Aw109 Trekker vs Leonardo Aw139

In category, the Airbus H135 and Leonardo AW109 Grand New are light twin‑engine helicopters optimized for short‑range missions, while the AW109 Trekker sits at the upper end of the light class with utility-oriented features and skid gear. The Airbus H155 is a medium twin designed for higher comfort and longer legs than light twins. The Leonardo AW139 is a larger medium twin, typically used where more cabin volume, payload, and all‑weather capability are priorities. For range, the H135 and AW109 Grand New generally offer similar, modest light‑twin ranges suited to regional hops, with the Trekker typically comparable depending on configuration. The H155 usually extends range beyond the light twins, making it better suited to longer point‑to‑point passenger transport. The AW139 commonly matches or exceeds the H155 in practical mission flexibility and endurance, especially with optional tanks and mission equipment. On passenger capacity, the H135 and AW109 Grand New typically seat a small group comfortably, often around six to seven passengers in VIP or shuttle layouts. The AW109 Trekker is similar in count but focused on rugged, flexible interiors. The H155 usually carries more, often around eight to ten. The AW139 typically carries the most, frequently around ten to fifteen depending on fit.