H-4 gen H-4, personal single-seat helicopter. This aerial vehicle consists of only a seat and a chassis. Its main difference from conventional helicopters is that it has got 2 main coaxial rotors that ...

The new S-70UAS U-Hawk has 25% more cargo space than a typical Black Hawk because it doesn't need a cockpit, any seats, or crew stations.

Dry maple seeds on their branch. Their wings allow the seeds to spin and glide on the wind, carrying them away from their parent tree. Every other Friday, the Outside/In team here at NHPR answers ...

A helicopter crash that involved a student pilot and his 54-year-old instructor happened due to "the limitations of human performance". The incident happened at about 17:25 BST on 3 February near ...