Helicopters come in all sorts of weird shapes and sizes. In the early days of mass-produced helicopters in the 1940s and 1950s, engineers experimented with strange designs and unique concepts, many of ...
The fundamental design principles behind rotary-wing aircraft date back to the Renaissance, with some of the earliest-known designs belonging to Leonardo da Vinci. Naturally, technology has ...
New images recently emerged raise the possibility that China has built another compound helicopter demonstrator, following the S-97 Raider clone seen in 2025, this time with a resemblance to the ...