|I've been reading up on coaxial rotor designs lately, and I was wondering if anyone had any opinions on it? A few of the advantages that I've come across include greater stability and the design is less vulnerable to combat damage, given there's no long drive shaft running to the tail rotor. It is, however, more mechanically complex.
I'm just an enthusiast so my knowledge of aerodynamics is extremely limited. But how do coaxial designs fair in high altitude environments like Afghanistan? Should/would the U.S. ever adopt such a design? Perhaps for the CSAR-X requirement?