Aircraft Metal Airframe Construction and Manufacturing Manual
(How aircraft were made in the 1930's and 40's)
METAL AIRCRAFT MANUFACTURING METHODS
Starting in the 1920’s there was keen interest in the new Aviation Craze. The tools were basic, and the construction methods were simple yet appropriate for amateur builders. Aerodynamics had been by trial and error, and by the end of the 30’s aircraft performance was amazingly efficient.
All of these airplanes were built and flown using the engines of the era. With reliable modern engines, these airplanes are still relevant to today’s pilots.
Plans for building 5 different sized sheet metal (folder bender) brakes.
The brake you see in the picture is 6ft long. It will make up to about 120 degree bends in light gauge aluminum or mild steel.
There are designs for light (up to 2 ft), medium (up to 4 ft), and heavy (up to 6 ft).