However, welcome news regarding Scottâs future came early in 1919 with the War Departmentâs decision to purchase Scott Field. Scottâs central location and the exceptional price of $119,285.84 influenced this decision and set the stage for Scott Air Force Baseâs amazing military future. In 1920, the government decided that the field should be turned over to the lighter-than-air branch of the Air Corps.
40075.02 / 360 / 60 = 1.8553 km. One minute of longitude on equator is 1.8553 km. Please note - on equator (i.e. on 0 degree of latitude)! Because the length of parallels decrease toward the north or south pole, the length (in km or miles) of minute of longitude differs for different latitudes.
If you look at the picture above you will notice the latitude and longitude in the upper right hand corner of the map. You would read it as 35 degrees 22 minutes 30 seconds north latitude and 111 degrees 30 minutes west longitude. Below the title you will notice the words 7.5 minute map. This means that the map covers an area of 7.5 minutes of latitude and longitude.