USAF adds six more A-29 aircraft to A-29 Afghanistan program fleet MRO Business Today 22:12 USAF adds six more A-29 aircraft to A-29 Afghanistan program fleet Sierra Nevada Corporation (SNC) and its partner Embraer Defense & Security will provide six more A-29 Super Tucano aircraft for the US Air Force’s (USAF) A-29 Afghanistan Program. Share this Share on FacebookTweet on TwitterPlus on Google+