Tension vs. Shear Nuts
Aircraft bolts can be installed primarily in either shear or tension loads. Dick Koehler reviews these applications and discusses the differences in the type of nut used to secure the bolt and how their torque values differ.
In Hardware, Cable and Safetying
Cutting Internal Theads
EAA Technical Counselor and A&P/IA mechanic Bob Koehler demonstrates the use of a tap to cut internal threads within a piece of aluminum plate.
Dick Koehler discusses different sizes of safety wire and when each size should be used. Dick is a Technical Counselor for EAA Chapter 186, A&P aircraft mechanic with Inspection Authorization (IA), and a SportAir Workshop instructor.
Aircraft Screw Identification
Using the proper screw for the intended application is important. EAA Technical Counselor and A&P mechanic Bob Koehler reviews different types of nonstructural screws commonly used in aircraft construction.
Measuring Bolt Diameter and Pitch
EAA Technical Counselor and A&P/IA mechanic Bob Koehler demonstrates the use of tools, gauges and charts to acurately measure bolt diameter and pitch.
Control Cable Components
EAA volunteer and A&P mechanic Fred Stadler discusses the various components that make up a control cable. Fred provides information about typical uses and selection of components to make up control cables in homebuilt aircraft.
Rubber Lined Zip Tie
Brian Carpenter from Rainbow Aviation shows off a new product, grip lock ties. Using rubber as a cushion this zip tie is sure to be useful in many areas of a homebuilt airplane.