Some reports indicate the schematics of the new high-speed helicopter were "accidentally leaked" onto Russian social media.

The Kamov design features a 'delta' fixed-wing, co-axial rotor system, a side-by-side cockpit, and pusher engines in the rear of the aircraft similar to the Sikorsky S-97 Raider and Bell V-280 Valor, said Defense Blog.

Sergei Mikheyev, General Designer of the Kamov Design Bureau, recently presented the concept drawings to an unknown group. Mikheyev expects the new technologies will produce higher speeds and better fuel efficiency that could make Washington very worried.

He also said the new helicopter could reach speeds of more than 435 mph, nearly three times the speed of a conventional helicopter.

The helicopter will be equipped with numerous stealth technologies, including infrared heat suppressing systems and various fuselage contour designs with internal weapon bays to avoid detection from Western MIM-104 Patriot missiles.

While it does not appear Russia has a working concept of the high-speed helicopter, U.S. defense companies seem to be ahead of the curve.