cut strips of BID to be used to reinforce the rudder hinge attachment areas and to reinforce the fuel filler pipe. The hinge reinforcements were two each of 2Ââ€x7†2Ââ€x8†& 2Ââ€x9Ââ€. The fuel filler reinforcements were four each of 4Ââ€x11†for two 2-ply layups.