Airbus Helicopters H125 vs Airbus Helicopters H135 vs Airbus Helicopters H145 vs Leonardo Aw109 Trekker

All four are light helicopters, but they split into two categories: single‑engine utility versus twin‑engine multi‑role. The Airbus H125 is a single‑engine light utility helicopter, typically used for aerial work and simple passenger moves; it generally carries about 5–6 passengers (plus pilot) and offers moderate range suited to regional missions. The Airbus H135 and H145 are twin‑engine light helicopters aimed at passenger transport, EMS, and public service; the H135 is usually configured for about 5–7 passengers with a range broadly comparable to or a bit above the H125 depending on tanks and fit, while the larger‑cabin H145 commonly seats about 8–9 passengers and tends to deliver the most practical cabin‑and‑fuel flexibility for longer legs in this group. The Leonardo AW109 Trekker is a twin‑engine light helicopter positioned toward faster corporate/utility flying; it typically seats about 6–7 passengers and is generally competitive on range, often matching or exceeding the H135 and approaching H145 territory depending on configuration. Exact figures vary with interior, fuel options, payload, and reserves.