SIFT Army Aviation Exam Practice Questions and Answers |100% Pass
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Course
SIFT
Institution
SIFT
SIFT Army Aviation Exam Practice
Questions and Answers |100% Pass
Airfoil - Answer-Blade that cuts through air so that air passes above and below it
Top of an airfoil is ________ - Answer-Cambered
Why is the top of an airfoil cambered? - Answer-To allow air to quickly get past the airfoil and c...
Weight is an important factor in flight because: - Answer✔✔-You need to generate enough force to move
the weight off the ground, thus requiring more lift
What 3 factors can cause a change in weight mid-flight? - Answer✔✔-Strong winds, adverse weather
conditions, banking
What is the most frequent factor that causes a change in weight mid-flight? - Answer✔✔-Banking the
helicopter
As the angle of a bank increases, what also needs to increase? - Answer✔✔-The angle of the airfoil
which will produce more lift
Load factor (G load) - Answer✔✔-Added strain created by banking and increasing the angle of the airfoil
G load equation - Answer✔✔-G = L1 / L0
G - Answer✔✔-Load factor
L1 - Answer✔✔-Actual load on the rotor blades
L0 - Answer✔✔-Resting or normal load of the helicopter
Thrust - Answer✔✔-Force that moves the helicopter horizontally
How do you create thrust? - Answer✔✔-Converting lift via alterations of the pitch angle and the AOA
Drag - Answer✔✔-Opposing force to thrust
What are the 3 subcategories of drag? - Answer✔✔-Profile, parasitic, and induced
Parasitic drag - Answer✔✔-Increases with airspeed and is the dominate type of drag at high airspeeds
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