Originally Posted by tbangs
You can type "mach 0.875 to miles per hour" into Google, and it will give you the statute miles per hour for that mach number. In this case 666 miles/hour. Come to think of it, that may be the joke
Gotta love Google
I thought it was more complicated than it appears to be.
I have no idea where 331.5 comes from
Source: http://www.electro-optical.com/unitc..._cat.htm#speed
To make things worse, you have to account for wind direction in addition to speed. If your plane is flying east, but the wind is blowing NE, you can't just add the windspeed into the equation. You will need to figure the speed of the east vector and add that, which will require some trig.
Also don't forget to multiply by 1.2 if flying over Canada to account for the exchange rate.
What was the original topic about again?
