CH-640 Fuselage Cabin floor sub-assembly (14 of 18)




Position the center bearing channel to the floor skin.  This channel is lined up with the center line of the floor and AGAINST the forward floor channel.  Drill the 6 A5 holes and cleco in place.  NOTE:  These holes are already drilled in the floor skin so be sure to drill them from the other side.  I did this by clamping the bearing channel to the floor channel then pulling the assembly forward over the edge of the table and drilling from underneath.  It helps to have a friend to help you with this step.
Position the center bearing channel to the floor skin. This channel is lined up with the center line of the floor and AGAINST the forward floor channel. Drill the 6 A5 holes and cleco in place. NOTE: These holes are already drilled in the floor skin so be sure to drill them from the other side. I did this by clamping the bearing channel to the floor channel then pulling the assembly forward over the edge of the table and drilling from underneath. It helps to have a friend to help you with this step.