Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

5 fabric covering

QuestionAnswer
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? Warp 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 a direction at a 45 degree angle to the warp and weft.
What is the purpose of the Selvage Edge on a roll of fabric? It prevents the fabric from unraveling.
What identification marking is found on the Selvage Edge, and in which direction is the warp replied? The FAA-PMA Stamp found on the Selvage Edge and the warp is applied parallel to the line of flight.
How are the fabric type and strength requirements determind for fabric-recovered aircraft? The original manufacturer determines fabric type, and the strength requirements are a function of the never-exceed speed and wing loading.
What type 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 rib stitching to prevent 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 principle methods used to test the condition of fabric? Punch testers such as the Maule or Seybolt tester, and laboratory pull-testing.
Fabric is considered unairworthy when it has deteriorated to what percentage of its original strength? Less than 70%.
How should a structure that will be covered with doped fabric be prepared following inspection and prior to covering? Treat it with a protective coating a paint or varnish as appropriate.
What is the principle advantage of the envelope method for covering wings? Almost all the scenes are machine-sewed by the envelope supplier.
What is a tie-off knot? A standard, modified seine knot 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 known? Consult the chart and AC 43.13-1B.
Created by: Big.Bear.M