TOPGRADE

ARMY Aviation Study Guide Test 2024. the lift and thrust must exceed the weight and drag. increasing main rotor blades' AOA while maintaining their rotational speed creates extra lift and the aircraft ascends. Decreasing the pitch results in a descent. - correct answer vertical flight the increased efficiency of the rotor disk caused by interference of the airfloe when near the ground - correct answer in ground effect also known as dual rotor; has 2 large horizontal rotor assemblies in...

ARMY SIFT AVIATION INFORMATION FINAL EXAM 2024. Newton's first law of motion - correct answer States that an object at rest will stay at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force. The unbalanced force may be any force, such as gravity or friction. For example, a ball sitting on the floor will remain still unless a force is exerted upon it--a kick from a foot, a push from a hand, or a strong wind moving it. Newton's...

SIFT - Army Aviation Study Review Practice Questions 2024. 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 and down about an invoiard mounted hinge), independent of the otherblades, and feather (rotate about the pitch axis to change lift) 3 Type...

SIFT - Army Aviation Written Exam 2024. Types of drag - correct answer Parasitic Profile Induced Parasitic drag - correct answer caused by the non-lifting portions of the helicopter (fuselage, engine, cowlings, hub, mast, landing gear, external loads) increases with airspeed, dominant type of drag at high airspeeds Profile drag - correct answer caused by frictional resistance of the lift-producing surfaces (rotor blades) passing through the air remains constant throughout speeds ...

SIFT (Army Aviation Information) Practice Test Guide With Answers Correctly Answered 2024. 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 are controlled by the pilot. - correct answer Mast This main rotor is used to generate ____ (fill in the ...

SIFT (Army Aviation) Final Exam Questions 2024.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. Bernoullis principle - correct answer As flow increases, pressure decreases Phases of flight - correct answer Takeoff, climb, cruise, descent, landing. Fla...

SIFT 1 Army Aviation Information Test Correctly Answered 2024. the four forces that act on an aircraft in flight are? - correct answer lift, gravity, thrust and drag what does not affect density altitude? - correct answer wind velocity the maneuver in which a rotary-wing aircraft (helicopter) is maintained in nearly motionless flight over a ground reference point at a constant altitude and heading (direction) is known as? - correct answer hovering the fight envelope of an aircraft is? ...

SIFT- Army Aviation (Fixed Wing) Final Exam Quiz 2024. 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 operating components but does not include unusable fuel. before fluids, fuel or oil is inserted. Operating Empty Weight (OEW) - correct answer ...

SIFT Army Aviation 2018 Complete Test With Correct Answers 2024 Updated . Manufacture's Empty Weight (MEW) - correct answer Total weight of the aircraft as it was built. This includes systems and components required for the aircraft to operate. Operating Empty Weight (OEW) - correct answer OEW is the MEW plus the weight of the crew, fluids, unusable fuel, and the equipment require for flight. It does not include baggage, passengers, or usable fuel. All-Up Weight - correct answer AUW or A...

SIFT- Army Aviation Category Final Exam Questions 2024. 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 preparation for landing MEW - correct answer Manufacturer's Empty Weight -total weight of aircraft as it was built OEW - correct answer Operating Em...

SIFT Army Aviation Information Final Test Guide 2024. skidding - correct answer An aerodynamic condition, during a turn, where the tail of an aeroplane moves away from the centre of the turn or tends to follow a path which is outside that followed by the nose. slipping - correct answer an aerodynamic condition of uncoordinated flight in which an aeroplane moves towards the inside of a turn or is moving somewhat sideways as well as forward relative to the oncoming airflow. flapping - corre...

SIFT Army Aviation Information Practice Test (End of Term ) Prediction Questions 2024. A helicopter is - correct answer A type of rotorcraft Helicopter turbine engines produce ___________ thrust per pound than piston engines - correct answer More The four main forces working on a helicopter are - correct answer Lift, weight, thrust, drag Helicopters typically have between ___ and ___ main rotor blades - correct answer 2 and 6 Depending on the type of helicopter, main rotor system co...

SIFT Army Aviation Information Written Exam 2024. What part decrease crosswind thrust on the blades and enhance flight stability by keeping the bar stable as the rotor spins - correct answer The flybar Helicopter turbine engines produce ___________ thrust per pound than piston engines - correct answer More The four main forces working on a helicopter are - correct answer Lift, weight, thrust, drag Helicopters typically have between ___ and ___ main rotor blades - correct answer 2 and...

SIFT Army Aviation Information Review Practice Test Exam 2024. A helicopter is A type of rotorcraft - correct answer A helicopter is A type of rotorcraft Helicopter turbine engines produce more thrust per pound than piston engines - correct answer Helicopter turbine engines produce more thrust per pound than piston engines The four main forces working on a helicopter are Lift, weight, thrust, drag. - correct answer The four main forces working on a helicopter are Lift, weight, thrust, dr...

SIFT Army Aviation Information Questions Correctly Answered 2024. Which of these is one of the three types of drag that constitute total drag? - correct answer Parasite. Which of the following is common to all turbine helicopters, but is only on some piston powered helicopters? - correct answer Governors Where is the horizontal reference datum located? - correct answer Varies per helicopter manufacturer. Its an imaginary vertical plane or point arbitrarily fixed somewhere along the longit...

SIFT Army Aviation Information Section Complete Study Guide 2024. 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 or more transmissions and drive shafts. Fuselage - correct answer Main Body of the helicopter Mast - correct answer Shaft ...

SIFT Army Aviation Information Test With Correct Solutions 2024. First Law of Motion - correct answer an object at rest will stay at rest, an object will remain in motion unless acted upon by an unbalanced force such as gravity or friction Four Types of Friction - correct answer 1) sliding, kinetic friction 2) fluid friction 3) rolling friction 4) static friction Sliding, Kinetic friction - correct answer results when the surface of one object slides along the surface of another object...

SIFT Army Aviation Information Test Questions Correctly Answered 2024. 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 answer The ___ position relative to the horizon determines the helicopter's travel and attitude 45 knots - correct answer When t...

SIFT Army Aviation Information Final Exam Questions 2024. Four forces acting on a helicopter in flight. - correct answer Lift, Thrust, Weight, Drag Induced Drag - correct answer That part of the drag on an airfoil that arises from the development of lift. Parasite Drag - correct answer Drag from components that don't create lift. (Wheels, Fuselage) The Venturi Effect - correct answer The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constr...

SIFT Army Aviation Information Advanced Prediction Questions 2024. A helicopter is: - correct answer A type of rotorcraft Helicopter turbine engines produce _________ thrust per pound than piston engines: - correct answer more The main forces acting on a helicopter are: - correct answer Lift, weight, thrust, and drag Helicopters typically have between __ and __ main rotor blade(s): - correct answer 2, 6 Depending on the type of helicopter, main rotor system components can include:...