The company that makes transmissions for Chinook, Apache and Blackhawk helicopters, as well as the Raptor fighter aircraft, won interim authority on Friday to start tapping bankruptcy loans which may reach as much as $29 million, Dow Jones DBR Small Cap reported today. One day after Northstar Aerospace Inc. filed for chapter 11 protection, Bankruptcy Judge Mary Walrath authorized the borrowing of as much as $9 million to keep it in operation.