Sift army aviation - Study guides, Class notes & Summaries

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 protruding from the top Cowling - correct answer On the upper part o...

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/types of drag increases as the speed increases? - correct answer parasitic drag and profile drag which of the following decreases upon an increase to the collective pitch controller? - correct answe...

SIFT Test Army Aviation Information Study Guide Test 2024. 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 answer rotor blades (produce lift w/o requiring helicopter to move forward) provide the ability to takeoff vertically, hover in one place, and ta...

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/types of drag increases as the speed increases? CORRECT ANSWER parasitic drag and profile drag which of the following decreases upon an increase to the collective pitch controller? CORRECT ANSWER RPM ...

SIFT Army Aviation Information Practice Test 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, drag. Helicopters ...

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 SectionA 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 protruding from the top Co...

Which of these is one of the three types of drag that constitute total drag? CORRECT ANSWER Parasite. The force that resists the movement of a helicopter through the air and is produced when lift is developed is called drag. Drag must be overcome by the engine to turn the rotor. Drag always acts parallel to the relative wind. Total drag is composed of three types of drag: Profile, induced, and parasite Which of the following is common to all turbine helicopters, but is only on some piston...

SIFT Army Aviation What gives a helicopter its lifting force? - correct answer Airfoil What is a "airfoil"? - correct answer A blade; it cuts through the air so it passes above and below it. The top of the airfoil is ____ . - correct answer curved What results in high pressure from the airfoil? - correct answer The air that goes below the airfoil has a shorter distacne to travel and is slower. The amount of lift depends on what things? - correct answer the material, the shape of t...

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 Types of Approach - correct answer Normal: 7-12 @300-500 AGL S...