Day 3 Progress Check: Fasteners 1 Flashcards
What does the rivet part number system typically indicate about the rivet?
The head style, material, diameter, and length of the rivet.
How does the countersunk 426 series rivet differ from the universal head 470 in terms of application?
Used extensively on the exterior of aircraft for reduced drag.
Why are rivets still commonly used in aircraft construction despite advances in other fastening techniques?
They provide superior shear and tension load support.
Which rivet type is primarily used in areas where aerodynamics is crucial?
Countersunk head 426
How do modern riveting techniques enhance aircraft performance compared to older methods?
They enhance the aerodynamic properties by using flush rivets.
How do rivet standards contribute to aircraft safety and maintenance?
They provide a uniform benchmark for quality and performance.
What does the phasing out of certain rivet types, such as AN430, indicate about aviation technology?
Technological advancements leading to the need for stronger fasteners.
Why is the standardization of fasteners like rivets important in the aerospace industry?
It ensures compatibility and interchangeability across different aircraft.
What is the primary benefit of using 2024T3 Aluminum Alloy in aircraft structures?
High strength-to-weight ratio
Which rivet is typically not used for bearing tensile loads and why?
NAS1097 because it is used for thin sheet metal applications.
What is the main reason for using the same type of fastener material across similar components?
To prevent galvanic corrosion.
What is the primary purpose of NAS1097 rivets in aircraft construction?
For use in very thin sheet metal applications.
What significant role did Charles Ward Hall play in the development of aircraft rivets?
Developed the countersunk rivet to reduce aerodynamic drag.
Which statement best describes the evolution of fastener materials used in aircraft construction?
Shift from ferrous to non-ferrous metals to reduce weight.
What challenge does the use of multiple fastener types pose in aircraft maintenance?
Potential for incorrect installations leading to structural failures.
