Sift Study Guide Army Aviation questions with correct answers

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 powered helicopters? CORRECT ANSWER Governor Governors are common on all turbine helicopters (as it is a function of the fuel control system of the turbine engine), and used on some piston powered helicopters Where is the horizontal reference datum located? CORRECT ANSWER It varies by helicopter The horizontal reference datum is an imaginary vertical plane or point, arbitrarily fixed somewhere along the longitude axis of the helicopter, from which all horizontal distances are measured for wight and balance purposes. there is no feed rule for its location. it is established by the helicopter manufactureer The _______ position relative to the horizon determines the helicopters travel and attitude CORRECT ANSWER Cyclic The cyclic position relative to the horizon determines the helicopters travel and attitude