Sift army aviation Study guides, Class notes & Summaries

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 TestWhat 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 6 Man...

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...

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...

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 Practice Test Questions And Answers A helicopter is A type of rotorcraft Helicopter turbine engines produce ___________ thrust per pound than piston engines More The four main forces working on a helicopter are Lift, weight, thrust, drag Helicopters typically have between ___ and ___ main rotor blades 2 and 6 Depending on the type of helicopter, main rotor system components can include A stabilizer bar, upper/lower swashplates, counterweig...

SIFT Army Aviation Information Practice Test Questions With Complete Solutions.

SIFT Army Aviation Information Practice Test Questions And Answers 2023 SIFT Army Aviation Information Practice Test Questions And Answers 2023 SIFT Army Aviation Information Practice Test Questions And Answers 2023

SIFT Army Aviation SectionWhat 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 Taxi Which war became known as the helicopter war? - correct answer Vietnam War What type of helicopter design uses a ducted fan in place of a tail rotor to cancel torque ...