Miles per hour be used to express the speed of delivery of a ball in sporting events such as cricket, tennis and baseball. Miles per hour Miles per hour (abbreviated mph, MPH or mi/h) is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour. It is used in the United States, United Kingdom and many Commonwealth nations, particularly in the Caribbean region. Speed limits and road traffic speeds are given in miles per hour in the following jurisdictions (elsewhere kilometers per hour are used): Road traffic speeds in other countries are indicated in
Jacqueline Cochran per hour, more than twice the speed of sound. She established a record for the 100-kilometer course by flying at 1302 miles per hour. Colonel Cochran established a third world's speed record by achieving 1135 miles per hour over a 500-kilometer course. The professional competence, aerial skill, and devotion to duty displayed by Colonel Cochran reflect great credit upon herself and the United States Air Force." From many countries around the world, Cochran received citations and awards. In 1949, the government of France recognized her contribution to the war and aviation awarding her in 1951 with the French Air Medal.