Trades and Duties of Y Group in Indian Air Force Trades and Duties of Y Group in Indian Air Force: Also known as Non-Technical Group Air Force Y Group is those Airmen who are not involved in Any Technical Job in Indian Air Force.By Technical Job we mean  Mechanical or engineering related knowledge. Many of the Aspirants wants to know the Trades in Air Force Y Group.The Following Trades and Their Job Roles are mentioned as follows:- Air Force Station Security These are Agniveer Vayu whose role is  to provide security to the Air Force area such as Ruway, ATC, Missile