Les

How are statute and air miles different? We use statute miles often in aviation. However, they also use nautical miles, based on the ticks of a compass at the equator.

I know that statute miles are based on 5280 feet.

Are you meaning "as the crow flies" miles vs road miles? I've always thought the 150 mis restriction was based on "as the crow flies" miles, or just drawing a 150 mi circle from your base point, or from the state line crossing point.