Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Aircraft covering fabrics are made of materials from what two sources? |
Organic materials and synthetic materials. |
|
|
How would you determine the strength requirements for fabric used to re-cover an aircraft? |
The fabric must be of at least the quality and strength of the fabric used by the original manufacturer. |
|
|
What two types of organic fibers are used for covering aircraft? |
Cotton and linen. |
|
|
What is meant by Warp, Weft and bias? |
Where is the direction along the length of the fabric, weft is the direction across the fabric at right angles to the warp, and bias is the direction at a 45 degree angle to the warp and weft |
|
|
What is the purpose of the salvage edge on a roll of fabric? |
It prevents the fabric from unraveling |
|
|
What identification marking is found on the salvage edge, and in what direction is the warp applied? |
The FAA - PMA stamp is found on the salvage edge and the warp is applied parallel to the line of flight. |
|
|
How are the fabric type in strange requirements determined for fabric - covered aircraft? |
The original manufacturer determines the fabric type, and the strength requirements are a function of the Never - exceed speed and wing loading. |
|
|
What types of synthetic fibers are used for covering aircraft? |
Fiberglass and heat-shrinkable polyester fibers. |
|
|
Which of the several types of fabric is unaffected by moisture and mildew? |
Fiberglass |
|
|
What is the function or purpose of reinforcing tape? |
Reinforcing tape is used between the fabric and the ribs to shank to prevent the lacing cord from cutting through the fabric. |
|
|
Where would you use surface tape? |
Over rib stitching and sewed seams, over lapped edges, around corners, and along leading and trailing edges. |
|
|
How should the edges of drainage, inspection, and ventilation holes be reinforced? |
With plastic, aluminum, or brass grommets. |
|
|
What are the principal methods used to test the condition of fabric? |
Punch testers such as the Maule or Seybolt tester and a laboratory pull testing |
|
|
Fabric is considered an error the one that has deteriorated to what percentage of its original strength? |
Less than 70%. |
|
|
How should I structure that will be covered with soap fabric be prepared following inspection and prior to covering? |
Treat it with protective coating of paint or varnish as appropriate. |
|
|
What is the principal advantage of the envelope method for covering wings? |
Almost all seams are machine-sewed by the envelope supplier |
|
|
What is a tie - off knot? |
A standard, modified seine used on all stitches except the starting stitch |
|
|
Name three common types of machine-sewed seams. |
Plain overlap, folded fell, and French fell |
|
|
Where are anti tear strips used? |
Under wing rib stitching when the never exceed speed is greater than 250 mph |
|
|
How would you determine the correct spacing for rib stitching if the original spacing was unknown? |
Consult the chart in AC 43.13 - 1B |
