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.
Note that one degree of longitude is 111 km at the equator, but less for other latitudes. There's a simple approximative formula to find the length in km of 1Â° of longitude in function of latitude : 1Â° of longitude = 40000 km * cos (latitude) / 360 (and of course it gives 111 km for latitude = 90Â°). Also remark that 1Â° of longitude is almost always a different distance than 1Â° of latitude.