sentences:  In April 1944, the P-47 Thunderbolt arrived to replace the ageing Hurricane in the close air support role.At this time, Carey also undertook training of United States Army Air Force pilots, tutoring them in air tactics specific to dealing with Japanese air and land targets.Thomas Williams, deputy, AOC Eastern Air Command at Air Command South East Asia, wrote to congratulate him on the effectiveness of his training courses which were well received by American airmen.