In this video, the team continues the construction of a four-seat experimental Hummingbird helicopter. They begin by cutting out the parts for the lower fuselage using a CNC plasma table [00:08]. The ...

HENNIKER, N.H. — When Hector Xu was learning to fly a helicopter in college, he recalled having a few “nasty experiences” while trying to navigate at night. The heart-stopping flights led to his ...