After twice failing to obtain a multimillion-dollar contract to provide 20 light-attack aircraft to the Afghan military, representatives of Beechcraft Corp. will sit down with Air Force officials on Monday to discuss why the company was once again eliminated from the contract competition. The Air Force on Wednesday awarded Beechcraft competitor Sierra Nevada Corp. a $427.5 million contract to build 20 light-attack aircraft for the Afghan air force. The value of the contract increased by more than $72 million from...