SIFT - Army Aviation question n answers 2023 passed

SIFT - Army AviationTypes 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 Induced drag - correct answer caused by the lift created by the rotor decreases as airspeed increases, most dominant at low airspeeds Types of weight - correct answer Basic empty weight Maximum gross weight Basic empty weight - correct answer the weight of the helicopter once everything directly unattached to the helicopter is removed Maximum gross weight - correct answer maximum weight a helicopter can bear safely internal: max weight within the interior of the helicopter (pilot, passengers, cargo