Originally Posted by
SplineDrive
Boeing's FARA wasn't simple or conventional. It was a thrust compounded single main rotor helicopter which is more complex than Bell's lift compounded design. Both are simpler than Sikorsky's Raider-X. My view is that the Army is giving Sikorsky as many chances as possible to show some success with an X-2 platform and picked a no-kidding low risk design as the alternate. Not only was Boeing's configuration not the lowest risk, but there is no track record of getting a demonstrator/prototype put together on time. Bell also had that going for them.
I suspect that's the same reason that Karem and AVX didn't make the cut.