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SIFT ARMY AVIATION INFORMATION PRACTICE TEST
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SIFT ARMY AVIATION INFORMATIONPRACTICE TEST 2024-2025
A helicopter is - ANSWER A type of rotorcraft
Helicopter turbine engines produce ___________ thrust per pound than piston
engines - ANSWER More
The four main forces working on a helicopter are - ANSWER Lift, weight,
thrust, drag
Helicopters typically have between ___ and ___ main rotor blades - ANSWER
2 and 6
Depending on the type of helicopter, main rotor system components can include
- ANSWER A stabilizer bar, upper/lower swashplates, counterweights, pitch
horns, teeter/coning hinges, blade grips, pitch/scissor links, control rods
The function of the flybar is - ANSWER To decrease crosswind thrust on the
blades and enhance flight stability by keeping the bar stable as the rotor spins
Many helicopters have a horizontal stabilizer located _____ - ANSWER On the
tail boom
The purpose of the tail rotor is: - ANSWER To produce an anti-torque force
acting perpendicular to the helicopter's longitudinal axis.
Wheels on _____ types of helicopters are _____ - ANSWER Some, retractable
A pilot controls a helicopter using: - ANSWER Pedals, a collective, throttle,
cyclic
From a physics perspective, the _____ force is deemed to act through a
helicopter's _____ - ANSWER Total weight, center of gravity
When a pilot banks a helicopter, causing it to turn, _____ - ANSWER The
machine's weight increases
In the case of helicopters, lift is produced by _____ moving through the air at a
speed sufficient to create - ANSWER Airfoils, a pressure differential
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