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2 Aircraft Covering

QuestionAnswer
When dope-proofing the parts of the aircraft structure that come in contact with doped fabric, which of the following provide an acceptable protective coating? Aluminum foil and cellulose tape.
Moisture, mildew, chemicals, and acids have no effect on glass fabric.
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 sew with a baseball stitch from the center of the tear out toward the extremity of each leg and then dope on a patch.
Fungicide and mildewicide additives are important for fabric covered aircraft, such as cotton and linen.
How many fabric thicknesses will be found in a French-fell seam? Four.
Machine-sewn seams in aircraft covering fabrics may be of which of the following types? Folded-fell, French-fell, or plain lapped.
The strength classification of fabrics used in aircraft covering is based on tensile strength.
Fabric rejuvenator is used to restore the condition of dope coatings.
Finishing tape (surface tape) is used for what purpose? To provide additional wear resistance over the edges of fabric forming structures.
When and how is finishing tape applied on a fabric-covered aircraft? Doped on after the first or second coat of dope.
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 70 percent of the original strength for intermediate fabric.
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 speed of the aircraft and the maximum wing loading.
Created by: Jack Mollohan
 

 



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