Posted by Graham Warwick
From: ARES: http://www.aviationweek.com/Blogs.aspx?plckBlogId=Blog:27ec4a53-dcc8-42d0-bd3a-01329aef79a7&plckPostId=Blog:27ec4a53-dcc8-42d0-bd3a-01329aef79a7Post:43e82fd7-8611-43a1-8517-9daf08468732
This is no surprise, coming after the shock of Boeing and Sikorsky teaming in perpetuity to pursue the US Army's Future Vertical Lift (FVL) program, but they have picked Sikorsky's X2 configuration for their Joint Multi Role (JMR) technology-demonstrator proposal.
The coaxial-rotor, pusher-propeller X2 configuration was picked to meet the Army Aviation Applied Technology Directorate's (AATD) requirement for a cruise speed of up to 230kt - at least 50% faster than a conventional helicopter. Sikorsky's company-funded X2 Technology demonstrator exceeded 260kt is September 2010 and two industry-funded S-97 Raider light tactical helicopter prototypes now being built are designed to cruise at 235kt clean and 220kt with weapons. The first Raider will fly in 2014.