Questions and Answers
What is the main advantage of flush rivets in aircraft construction?
Reduced wind drag
How are rivets identified?
By size, type, and length
What determines the dimensions of a rivet needed for aircraft construction?
Size
In which type of riveting do the rivets protrude above the surface?
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What is the typical exposed tail length needed for forming a proper shop head during the riveting process?
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Study Notes
- Rivets are fasteners used in aircraft construction that are smaller, lighter, and less expensive than nuts and bolts.
- Two main categories of solid rivets are countersunk/flush and universal head (domed head) rivets.
- Flush rivets sit flush with the surface and are used on exterior metal skins for reduced wind drag and appearance.
- Universal head rivets protrude above the surface and do not require dimpling or countersinking.
- Rivets are identified by their size, type, and length, with the size determining the hole diameter needed.
- A standard numbering system helps identify the dimensions and specifications of rivets, such as flush style head and alloy type.
- The riveting process requires a specific exposed tail length, typically one and a half times the rivet diameter, for forming a proper shop head.
- A gauge is used to measure the rivet stem before riveting to ensure the correct length, diameter, and height of the shop head.
