No. 428 Squadron RCAF
On 7 Nov 1942, he assumed command of No 428 (RCAF) Squadron, standing up the squadron in No. 4 Group. As the OC, it was noted that "Wing Commander Earle was a grand chap, one who can genuinely be called, 'One of Nature's Gentlemen'. He was well liked by the Canadians and sadly missed when he left on promotion to group captain in February 1943. He flew two operations from Dalton, occupying the astro-dome. He had previously been flying Fairey Gordons in the Middle East (Iraq), and found the Wellington difficult, partly due to his eyesight not liking the English skies, and partly as he was not a tall man." After only three months, he left 428 Bomber Squadron (RCAF) as an acting group captain on 7 Feb 1943, when he was assigned as the station commander of RAF Ridgewell and then RAF West Wickham, late in 1943, then as a temporary group captain. He ended the war as Air Officer Commanding No. 300 Group RAF (RAF Transport Command) in Australia.
428th Fighter Squadron
Upon return to the United States, assigned to Clovis Air Force Base, New Mexico in November 1954. Squadron was re-equipped with North American F-86H Sabre fighter-bomber aircraft, being assigned to Twelfth Air Force, Tactical Air Command. Maintained proficiency in tactical fighter operations, deploying components, aircraft, and crews on a global basis in support of NATO, PACAF, AAC, and other organizations. Deployed to southeastern United States during the Cuban Missile Crisis of 1962.