6 Questions
What is the unit of measurement for the arm's distance?
Inches
What does a positive sign indicate for an item's location?
The item is located aft of the datum
What would be the arm's value for an item located exactly at the datum?
Zero
What would be the result of locating the datum at the most forward location on an aircraft?
All arms would be positive numbers
In Figure 16-1, what would be the sign of the arm for an item located forward of the wing leading edge?
Negative
What determines whether an arm is positive or negative?
The location of the item relative to the datum
Learn about the concept of datums and arms in aircraft design, including how to measure and notate their distance from the datum. Understand the significance of positive and negative signs in indicating location. Test your knowledge of this crucial aspect of aircraft engineering!
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