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美国阿拉斯加州艾尔森空军基地，红旗-阿拉斯加 13-1 联合空战演习中，新加坡空军一架 F-15SG 战斗轰炸机正在加力起飞 。(An F-15 Eagle assigned to the Republic of Singapore air force takes off during RED FLAG-Alaska 13-1 Oct. 9, 2012, Eielson Air Force Base, Alaska. RF-A is a multi-service, multi-national coordinated, aerial combat operations exercise designed to test operational capabilities of participating units.)