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Arts and Humanities
Bakers Oral: General: 2. Aircraft Drawings
Terms in this set (13)
What type of lines are used on aircraft drawings to indicate hidden views, center lines, alternate position lines?
A hidden view line is a MEDIUM WIDTH LINE made up of SHORT DASHES. It represents an edge that cannot be seen when looking at the part from a specific position.
Center lines are THIN LINES composed of ALTERNATING LONG and SHORT DASHES, and are used to indicate the center of an object or void.
Alternate position lines are MEDIUM WIDTH LINES composed of ONE LONG and TWO SHORT EVENLY SPACED DASHES. They are used to show the alternate position of a part or the relative position of a missing part.
What is a sketch for a repair?
Basic drawing that shows specific information and provides minimum detail needed to manufacture the part.
What type of drawing is most helpful in troubleshooting a system?
Define "tolerance" as used in aircraft drawings.
The difference between the plus and minus allowable dimension of a part. (+ and - of .005 = .010)
Define "clearance" as used in aircraft drawings.
Dimension given for SPACE BETWEEN PARTS.
What is a fuselage station number?
Distance from the datum measured in inches along the longitudinal axis.
What information is given in the title block of a blueprint?
1. Drawing number
2. Name of part or assembly
5. Name of firm
6. Name of draftsman
8. Approving official
Where is the title block usually found on an aircraft drawing?
Lower right corner
Why are dimensions used, and how are they shown on an aircraft drawing?
They are solid narrow lines, broken at midpoint for the insertion of measurements. It is used to indicate the size of an object.
How can a change to an aircraft drawing be identified?
Revision letters (A, B, C, etc...) usually listed in a table next to the title block or in the corner of the drawing.
What is the "bill of materials" associated with aircraft blueprint?
List of materials and parts necessary for fabrication or assemble of a component or system.
Why are symbols used when drawing aircraft blueprints?
It is a type of shorthand used in drawings. They express the characteristics of a component with a minimum amount of drawing.
How many views are required to determine the shape of an object?
Three: Front, Top, and right side
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