Vintage Aviation News on MSN
Grounded dreams: Hiller X-2-235 – the coaxial vision that shaped future designs
The Hiller X-2-235 was an experimental American coaxial helicopter developed in the 1940s that helped pave the way for the ...
Sagita has built an RC model of its concept. A new helicopter concept with less complex mechanics aims to make aviation safer, simpler, and easier to maintain. Sagita Helicopters in Belgium is behind ...
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