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.

The E6B flight computer, either mechanical or electronic, is used for various flight calculations, including groundspeed, time, airspeed, distance, fuel burn, wind correction angles, and unit ...

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 ...