This silver cross is awarded to Officers and Warrant Officers for an act or acts of valour, courage or devotion to duty performed whilst flying in active operations against the enemy. A straight silver bar with an eagle in the centre is awarded for a further act or acts. The year of the award is engraved on the reverse. The award was established on the birthday of King George V, June 3, 1918. Until 1919, the stripes were horizontal.
Canadians were awarded a total of 4,460 single medals, 256 first bars and 6 second bars.
