SIFT 1 army aviation information test questions with verified solution 2023

SIFT 1 army aviation information test 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? - correct answer the region of altitude and airspeed in which can be operated an airfoil's efficiency is either a wing or a rotor blade is ____________ at high altitudes by the ____________ air density - correct answer decreased; lesser the degree of movement of an aircraft around its lateral axis is known as ? - correct answer pitch the primary purpose of the tail rotor system is to? - correct answer balance or counteract the torque effect of the main rotor takeoff from a slope in a helicopter with skid-type landing gear is normally done by? - correct answer bringing the aircraft to a level altitude before completely leaving the ground the vertical distance of the aircraft above mean sea level is defined as? - correct answer true altitude a helicopters cyclic control is a mechanical linkage used to change the pitch of the main rotor blades when? - correct answer at a selected point in its circular pathway when the rotor blades of a helicopter are spinning fast enough in a clockwise direction to generate lift, a phenomenon known as ___________ causes the body of the helicopter to have a tendency to turn in a counterclockwise direction - correct answer torque absolute altitude is defined as? - correct answer the vertical distance of the aircraft above the terrain or ground level the differential lift between that of the advancing rotor blade and that of the retreating rotor blade is called? - correct answer dissymmetry of lift foot pedals in the helicopter cockpit give the pilot the ability to? - correct answer control the torque effect the pressure altitude reading corrected for variations from standard temperature is what? - correct answer density altitude the cyclic controls the what? - correct answer direction of the tilt of the main rotor moving the cyclic forward and significantly raising the collective will cause the helicopter to? - correct answer increase its forward speed and begin to climb conventional american helicopters have a main rotor that does what? - correct answer turns in a counterclockwise direction translation lift is what? - correct answer the additional lift gained when the helicopter leaves its downwash gyroscopic precession happens when what? - correct answer a force applied to a spinning disc has it effect 90 degrees later in the direction and plane of rotation