Lockheed Martin's Sikorsky has successfully flown its "rotor blown wing" uncrewed aerial system in both helicopter and fixed-wing flight modes, it announced Monday. The 115-pound twin-prop drone ...

Sikorsky on Monday detailed recent successful demonstrations with its “rotor blown wing” unmanned aircraft system (UAS), flying its prototype in both helicopter and “winged aircraft” mode ...

We go through the best aftermarket performance brake rotors at different price points, and explain how they're different from regular brakes. Finding the right non-OEM replacement brake rotors for ...

If you already have a liver condition such as cirrhosis, tell your doctor if you have any new or worsening symptoms. Symptoms of liver cancer are often quite vague and vary depending on where the ...

It's also possible they might have all these behaviors or a mix of these. ADHD symptoms usually show up when children are young — around school age. But you might notice them much earlier.

The onset of type 2 diabetes can be gradual, and symptoms can be mild during the early stages. As a result, many people may not realize that they have this condition. Possible early signs may ...

Sometimes those warped records are used, but sometimes they are new. And if returning a warped record is a logistical pain, Pro-Ject wants to pull on your coat about its latest product: the Flatten It ...

It’s impossible for a helicopter to fly without two rotors, o actually, it’s impossible for a helicopter to fly well without two rotors. The configurations of those two rotors can change, however.