Sikorsky to Build Superfast, Military-Grade Helo - Popular Mechanics (blog)

Sikorsky to Build Superfast, Military-Grade Helo - Popular Mechanics (blog):

Popular Mechanics (blog)

Sikorsky to Build Superfast, Military-Grade Helo Popular Mechanics (blog) In 2009 Sikorsky Aircraft built the world's fastest helicopter, the X2, which clocked in at nearly 287 miles per hour and earned a PM Breakthrough Award to boot. Since then, the company has been incorporating the technology into designs for a new helo ...