Aircraft Fabric Questionnaire
Name three ways to mechanically bond fabric to ribs or other underlying structure
Clips, screws, rivets, and lacing cords
What is the danger associated with cellulose acetate nitrate dope?
Highly flammable
What is the advantage of utilizing the envelope method aircraft covering?
Saves time and has better seams
How are cotton and linen fabrics tautened?
Use of tautening dopes?
What can be used to ensure rib alignment when shrinking fabric
rib lacing
What percentage of the original strength of fabric must be retained to remain airworthy?
70%
What visual identification does certified fabric possess?
A repeated stamp on the fabric
What standard must all fabric types conform to for installation on certificated aircraft?
Aeronautical Material Standards (AMS)
What determines the spacing for rib stitching
Airspeed
What tpe of hand stitch is commonly used for repairs of fabric?
Baseball stitch
Name two methods for covering aircraft structures
Blanket Method Envelope Method
Name the two organic fabrics
Cotton Linnen
What is the most extensively used synthetic fabric?
Dacron (Polyester)
What must be done to structures that will come in contact with dope finishes?
Dope proofed
Which statement is true regarding paint system compatibility?
Epoxy finishes can be applied over wash primer coats
Select at least three types of protection that should be used while working with chemicals
Eye protection, gloves, respirator
Which of the following is a hazard associated with sanding on fabric covered surfaces during the finishing process?
Fire
Fungicidal dopes are used in aircraft finishing as which coat in the process?
First coat
Linen is derived from what source?
Flax plant
Name the four types of sewn seams
French fell, Folded fell, Modified folded, and Plain Overlap
What grade cotton is required for aircraft fabric?
Grade A
What is used to reinforce drain openings on aircraft fabric?
Grommets
When sanding fabric, it is important to do what?
Ground the part to prevent static electricity
In the covering process, when is the surface type applied?
Last fabric applied, applied during the second coat of dope
What type of solvent is used for thinning dopes?
MEK
What knot is commonly used in rib stitching
Modified Seine
Name the two types of dopes used in aircraft fabric
Nitrate Butyrate
What are the two types of fabric in use for aviation?
Organic Synthetic
Fabric repairs should reinstate two qualities, what are they?
Original strength and quality
What is the purpose of silver butyrate dope in finishing fabric
Protect fabric from UV rays
What is the purpose of the surface tape?
Protect underlying fabric around edges
What is the purpose of reinforcing tapes?
Protects fabric around mechanical fasteners
Define warp as related to fabric.
The length of the fabric
Define fill as related to fabric.
Width of the fabric
What two factors determine the quality and strength requirements of fabric for aircraft
Wing loading and Vne
Aluminum-pigment in dope is used primarily to
add UV protection
Define bias as related to fabric.
diagonally to the warp or threads
Tautening dopes were used to shrink dopes. How are synthetic fabrics shrunk?
heat
A correct use of acetone is to
used to wipe down surfaces
