Aircraft Covering Flashcards
When and how is finishing tape applied on a fabric-covered aircraft?
Doped on after the first or second coat of dope.
The determining factor(s) for the selection of the correct weight of textile fabric to be used in covering any type of aircraft is the what?
Speed of the aircraft and the maximum wing loading.
How many fabric thicknesses will be found in a french-fell seam?
four.
Finishing tape (surface tape) is used for what purpose?
To provide additional wear resistance over the edges of fabric forming structures.
Moisture, mildew, chemicals, and acids have no effect on what?
glass fabric.
Fungicide and mildewicide additives are important for fabric covered aircraft, such as what?
cotton and linen.
The best method of repair for a fabric-covered surface which has an L-shaped tear, each leg of which is approximately 14 inches long, is to what?
sew with a baseball stitch from the center of the tear out toward the extremity of each leg and then dope on a patch.
The strength classification of fabrics used in aircraft covering is based on what?
tensile strength.
Fabric rejuvenator is used to what?
restore the condition of dope coatings.
Machine-sewn seams in aircraft covering fabrics may be which of the following types?
Folded-fell, French-fell, or plain lapped.
When testing the strength of Grade A cotton fabric covering an aircraft that requires only intermediate grade, the minimum acceptable strength the fabric must have is what?
70 percent of the original strength for intermediate fabric.
When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following proved an acceptable protective coating?
Aluminum foil and cellulose tape.
