Preparing the Doubler AER-4039 is a Course
Full course description
Course Description
Doublers are used to increase the strength of the fuselage assembly.
By the end of this course, you will be able to
• Drill pilot holes in the doubler
• Locate the doubler on the skin panel
• Enlarge the holes in the doubler to accommodate the fasteners
Estimated completion time (hours): 1.0