Date: 2013-08-08 05:42 am (UTC)
zorkian: Icon full of binary ones and zeros in no pattern. (Default)
From: [personal profile] zorkian

Yup -- if you're going anywhere of distance, you actually set up your trip with checkpoints. You space them close enough that you can adjust before you get too far off course, but far enough apart that you aren't going crazy with doing math and plotting things while you're hurtling through the air at great speed.

The checkpoints are known locations -- you use other navigation systems (VOR and GPS) to determine when you get to the checkpoints. Then, you math. Lots of fairly simple math to determine how long it took you to go from A to B and then you can use that to determine your groundspeed, which you can compare to your airspeed and calculate wind... man. It's some work. :)

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