Pressure altitude is an aircraft's height above a theoretical "standard datum plane," defined by specific atmospheric conditions (29.92 inHg pressure, 15°C at sea level). It is a critical metric for ...

Altitude and barometric pressure are closely related. As altitude increases, barometric pressure decreases, or stated another way, barometric pressure is inversely proportional to altitude. This is ...

We all deal with engines, so we should know about their relationship with air pressure and density. Query any serious bracket racer, and you'll find he's become a virtual closet meteorologist. What is ...

Although density altitude does reduce performance of an aircraft, it doesn't automatically keep you on the ground. [Credit: Shutterstock] A student pilot mistakenly believed any reported density ...

All of us have experienced the effects of changing weather conditions on the performance of our hot rods. The car feels stronger near the coast on a cold day, yet it gets lazy as the ambient ...

The Federal Aviation Administration has ordered airlines to test cabin altitude pressure switches in all Boeing 737s, saying some operators have reported that both switches on several aircraft had ...