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;
28 Cards in this Set
- Front
- Back
|
What reference material maybe used for acceptable covering methods for fabric-covered aircraft structure? |
AC 43.13-1b chapter 2 |
|
|
What are three types of fabric that can be used to cover an aircraft? |
1. Cotton fabric 2. Polyester fabric 3. Glass fabric |
|
|
What paperwork must be completed if an aircraft that was originally covered with Grade-A cotton fabric is recovered using a synthetic fabric? |
From 337 must be executed stating that all materials and processes complied with the requirements of the supplemental type certificate (STC). |
|
|
What type of rib lacing cord is recommended for attaching cotton fabric to an aircraft structure? |
Waxed linen cord. |
|
|
What is meant by the salvage edge of a piece of fabric? |
The woven edge of a fabric used to prevent the material from unraveling during normal handling. |
|
|
Why are some portions of the structure of an aircraft dope proofed before they are covered with fabric? |
It keeps the fabric from sticking on the structure when the first coat of dope is applied. |
|
|
What material is used for inter-rib bracing in a fabric covered aircraft wing? |
Cotton reinforcing tape. |
|
|
What is the preferred Seam used for machine-sewing pieces of aircraft fabric together? |
French fell seam |
|
|
Should a sewed seam in fabric used to cover an aircraft Wing, run span-wise or chordwise? |
Chordwise |
|
|
What are two methods of applying the fabric to the wing of an airplane? |
The blanket method and the envelope method. |
|
|
What material is used to cover the overlapping edges of the leading edge metal to protect the fabric? |
Cloth tape. |
|
|
What are two methods of attaching the fabric to the aircraft structure? |
By sewing or with the cement. |
|
|
How are wrinkles pulled out of a cotton fabric? |
Wet the cotton with water and allow it to dry. |
|
|
How is polyester fabric shrunk and the aircraft structure? |
With heat from an electric iron. |
|
|
What type of knots are used for locking the stitches that are used for lacing on a fabric-covered aircraft wing? |
And modified seine knot |
|
|
What determines the spacing of the rib lacing stitches on a fabric covered aircraft wing? |
The never exceed speed of the aircraft. |
|
|
When is the finishing tape applied to a fabric-covered Wing when it is being recovered? |
After the second coat of dope has dried and the nap of the fabric has been sanded off. |
|
|
What is an anti-tear strip, and when are they required on a fabric-covered aircraft? |
It is the same type of fabric used for covering the wings, and it's rib between the reinforcing tape and the fabric. Usually required for aircrafts with a never exceed speed of an excess of 250 mph. |
|
|
When are drainage grommets applied when an aircraft is being recovered? |
Laid into the third coat of dope at the same time when the surface tape is applied. |
|
|
Where are drainage grommets located on a fabric covered aircraft wing.? |
At the lowest point in each Bay, on the underside of the wing at the trailing edge. |
|
|
What is done to Cotton and linen fabric to protect it from mildew? |
The very first coat of dope is mixed with mildewcide. |
|
|
How wide should the surface tape be, that is used to cover the trailing edge of an aircraft wing? |
3 inches wide. |
|
|
Why is the surface tape used on the trailing edge of a control surface of an aircraft notched? |
To prevent it from tearing off as it will form an effective spoiler as the wind blows against it. |
|
|
What is the purpose of the reinforcing tape used between the fabric and the tape lacing on an aircraft wing? |
Prevents the rib lacing cord from pulling through the fabric. |
|
|
What is the minimum strength to which aircraft fabric is allowed to deteriorate before it is considered to be unairworthy? |
70% of the strand of the fabric required for the aircraft. |
|
|
How is the strength of the fabric on an aircraft structure determined? |
Through an approximate strength test, that can be made with an FAA approved fabric punch tester. |
|
|
What is the recommended type of repair to a fabric-covered aircraft surface when it has an L-shaped tear, with each of the legs of the tear more than 14 inches long? |
For aircrafts with never exceed speeds of less than 150 mph a dope repair can be made. |
|
|
What type of hand sewing stitch is used when sewing a panel of new fabric on an aircraft fabric-covered wing? |
A baseball stitch, locked every 8 to 10 inches. |
