SIFT Army Aviation BUNDLED exams 2023 with 100% correct answers

Three types of Rotor Systems - correct answer 1. Semirigid - composed of two blades that are rigidly mounted to the main rotor hub 2. Rigid - the blade roots are rigidly attached to the rotor hub 3. Fully articulated - allow each blade to lead/lag (move back and forth in plane), flap (move up an...

Profile drag - correct answer Caused by the blades frictional resistance Induced drag - correct answer Downwash Parasite drag - correct answer Components attached to a helicopter that dont contribute to lift Total drag - correct answer Sum of profile, induced, and parasite drag. Bernoull...

Weight - correct answer The force of gravity pushing the aircraft down Lift - correct answer The force required to raise the aircraft Thrust - correct answer The force applied in order to move the aircraft forward Drag - correct answer The force that slows the aircraft down in preparati...

When generating lift, what should the pressure below the airfoil be in relation to the pressure above the airfoil? - correct answer greater than it what is the load factor of a 2000 pound helicopter that is currently experiencing an effective load of 4000 pounds? - correct answer 2 What type/t...

attitude indicator - correct answer Allows the aviator to control the aircraft by showing the attitude of the aircraft in relation to the natural horizon? (originally called an artificial horizon and later a gyro horizon) pitot-static, compass, gyroscopic - correct answer Flight instruments are g...

Force of Gravity - correct answer =G(m1m2/d^2) Bernoulli's Principle - correct answer as the velocity of a fluid increases, the pressure exerted by the fluid decreases Manufacturer's Empty Weight (MEW) - correct answer Total weight of the aircraft as it was built. this includes the system...

SIFT- Army Aviation exam 2023 with 100% correct answers

The typical structure of a helicopter is a ______ (fill in the blank) with a ____ (fill in the blank) protruding upward out of it. - correct answer Fuselage (the body of the craft), Mast. The engine of the craft drives power upward through the ____ (fill in the blank) to the rotor blades, which...

Helicopter structure - correct answer fuselage (body of aircraft), mast, rotor blades engine drives power up through mast to rotor blades main rotor generates thrust, tail rotor counteracts torque main rotor rotates counterclockwise (US, UK, Ger.) advantages of rotorcraft - correct answe...

what allows a helicopter to fly forward,backward, and laterally? - correct answer -helicopters are equipped with a source of thrust -an engine produces power and delivers it to overhead and tail rotor via one or more transmissions and drive shafts two types of helicopter engines - correct answ...

The phenomenon of a helicopter sinking into its own downwash is called: A. L/Wmin (minimum lift-to-weight ratio). B. An airfoil stall. C. Vortex torque state. D. Settling with power. - correct answer D. Settling with power. A helicopter is: A. A type of gyrocraft B. A type of rotorcraft ...

What part of a rotary-wing aircraft makes directional control possible? - correct answer The Swashplate Which of these US Army Helicopters is classified as tandem rotor? - correct answer CH-47 What is the preferred method of ground movement for helicopters on airports? - correct answer Air Tax...

Parasite Drag - correct answer A type of drag that constitutes total drag Governor - correct answer common to all turbine helicopters, but only on some piston powered helicopters? It varies by helicopter - correct answer Where is the horizontal reference datum located? Cyclic - correct answ...

A Helicopter - correct answer Is a type of rotorcraft that is able to takeoff and land vertically, hover, and fly forward, backward, and side to side (laterally). Thrust engine - correct answer an engine that produces power and delivers it to overhead and tail rotors (on most helicopters) via one...