Most ships control speed by changing engine power, but vessels with controllable pitch propellers adjust the blade angle instead. This video explains how variable pitch systems generate forward or ...

Add Yahoo as a preferred source to see more of our stories on Google. Today's Top Pick is a 2008 Van's RV-6A. For pilots seeking the perfect balance of speed, agility, and cross-country capability, ...

Add Yahoo as a preferred source to see more of our stories on Google. Kelluu, a Finnish startup, is developing low-cost hydrogen airships that can fly for up to 12 hours. They've recently attracted ...

In 1887 one of the most important experiments in the history of physics took place. American scientists Michelson and Morley failed to measure the speed of the Earth by comparing the speed of light in ...

It is more fuel-efficient to maintain a steady speed because the total energy used depends on the average air resistance. Since air resistance is proportional to the square of speed, your average ...

I can't believe that I get to fly a Cessna 182 with a Garmin G1000 instrument panel! Most of my flight time has been in Cessna 152 or a Cessna 172. I have flown in a Piper Cherokee Six - Piper PA-32 ...

Hartzell Propeller announced the launch of Kestrel, its lightweight carbon fiber constant-speed prop—the first entry in its new Falcon composite propeller series. The propellers are specifically ...