ASSEMBLY MANUAL B-25 Mitchell ARF - RC DEPOT

Section 12: Rudder and Servo Installation Step 9Use a rotary tool and 1/16-inch (1.5mm) drill bit to drilla 1/2-inch (12mm) deep hole in the center of each hingeslot for the rudders and fins. This provides a tunnelallowing the glue used to secure the hinges to fullypenetrate the hinge. Step 12Slide the rudder into position on the fin. Make sure therudder can move without binding against the fin at the topand bottom.Note: Drill the holes in the hinge slots for theelevators and stabilizer at this time as well. Step 10Place a T-pin in the center of each of the twelve hinges. Step 13Remove the T-pins from the hinge and push the ruddertight against the fin. Flex the rudder and apply enoughthin CA to fully penetrate the hinge. Apply CA to bothsides of the hinge. Step 11Slide the hinges back into the rudder. The T-pin will keepthe hinge centered evenly in the rudder and fin when therudder is installed.Important: Do not use accelerator whenhinging. The CA must be allowed to soakinto the hinge for the best possible bondbetween the hinge and surrounding wood.61