At 37 meters long with a wingspan-like dual rotor design, the Mil V-12 set world records for lifting power. This video ...

Following is a transcript of the video. This helicopter has dual-crossing rotors for increased precision The K-MAX uses a unique double rotor system where the two rotors cross each other.

Although the helicopter, aptly named Ingenuity ... and a more traditional multicopter is the choice to make it a dual-rotor design. There would have been no way to go with a quadcopter design ...

The Army has no plans to retire the CH-47 Chinook—which, in multiple respects, outdoes every other helicopter in the U.S. military’s fleet.

In 25 steps, he can convert into his dual-rotor helicopter mode, which comes equipped with two dual basters. To make things better, Spinister will feature his Targetmaster partners with ...