Brief Description: Cut Hole in Bottom of FAB for Bypass Door
Today I started working on the bypass door. Since both the primary intake and carb heat intake reside in the neck of the FAB, both will provide filtered air to the carb. But if the filter happens to get clogged or iced up for some reason, there is a FAB bypass mechanism that can be opened to provide unfiltered air from inside the cowl. The large hole for the bypass flange/door is directly below the carb intake throat and inside the oval air filter that could get blocked.
The first step was to cut the large bypass hole in the bottom of the fiberglass FAB. I used the flange for the door as a template. I then used the holes in the flange to match drill the fiberglass. The flange was then countersunk so the door can smoothly slide over the flange. I then curled the tab up and in and mashed down one end since this will serve as the stop for the door.
