AMT 120 (BOSS KAL) Flashcards
protected the fabric, adhered to it well, and tautened it over the airframe.
Nitrate Dope
Organic fabrics have a limited lifespan; cotton or linen covering on an actively flown aircraft lasts only about _____
5-10 years
Attempts to paint the coated fabric proved unsuccessful, because paint does not adhere well to ______
Nitrate dope
aircraft designers tried a preparation of cellulose dissolved in butyric acid called ________.
butyrate dope
aircraft cotton has not been available for over _____
25 years
_____ were added to the butyrate coating
Aluminum solids
It also gave the fabric a smooth, durable finish when dried.
Nitrate Dope
a mixture of cellulose dissolved in nitric acid, called ________, came into use as an aircraft fabric coating.
Nitrate dope
This mixture of butyrate dope protected the fabric from ____ and _____,
dirt and moisture
Two disadvantages of Fabric Covering
flammability and lack of durability
builders began coating the fabrics with ___ and ____
oils and varnishes
[Remember]!
-Eventually, a system combining the two dope coatings was developed.
-First, the fabric was coated with nitrate dope for its adhesion and protective qualities.
-Then, subsequent coats of butyrate dope were added.
-Since the butyrate dope coatings reduced the overall flammability of the fabric covering,
-this system became the standard fabric treatment system.
downside of woven organic fabrics
their tendency to sag
play an important role in the history of aviation.
Aircraft Fabric Covering
Finely woven organic fabrics, such as ____ and ____, were the original fabrics used for covering airframes,
Irish linen and Cotton
it did not adhere as well to the fabric as nitrate dope.
Butyrate dope
The famous ____ utilized a ________ in its design,
Wright Flyer, Fabric-covered wood frame
The major drawback to nitrate dope was its __________
extreme flammability
One primary advantage of Fabric Covering
light weight
[Remember]!
-The second problem, lack of durability,
-stems from the eventual deterioration of fabric from exposure to the elements that results in a limited service life.
-Although the mixture of nitrate dope and butyrate dope kept out dirt and water, solving some of the degradation issue, it did not address deterioration caused by Ultraviolet (UV) radiation from the sun.
Full name of Wright Brothers:
Orville Wright, Wilbur Wright
As the aviation industry developed more powerful engines and more aerodynamic aircraft structures, ___________
aluminum became the material of choice.
Aircraft Fabric covering reach?
12 seconds, traveled 120 feet, top speed of 6.7 miles per hour
Although the mixture of nitrate dope and butyrate dope kept out dirt and water, solving some of the degradation issue, it did not address deterioration caused by ___________.
Ultraviolet (UV) radiation from the sun.