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 ...

Density altitude (DA) reduces aircraft performance; it's pressure altitude corrected for nonstandard temperature and humidity. High temperature, humidity, and elevation all contribute to higher DA.

Is there a plug and chug way to do it if I know my barometric pressure, temp, and altitude? I need to get it everyday before I have a flying lesson. I hate using that round slide-rule flight computer ...