SIFT Army Aviation Information Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the SIFT Army Aviation Information Test with our comprehensive quiz. Utilize flashcards and multiple-choice questions to understand key concepts. Each question includes hints and explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the primary purpose of the helicopter's transmission system?

Regulate RPM of the rotor
Transfer engine power to the rotor
Control aerodynamic drag
Maintain flight stability

The correct answer is: Transfer engine power to the rotor

The primary purpose of the helicopter's transmission system is to transfer engine power to the rotor. This system is essential for converting the mechanical energy generated by the helicopter's engines into the rotational energy necessary to turn the rotor blades. The transmission allows for adjustments to be made to the rotor speed (RPM) based on flight conditions and ensures that the rotor receives sufficient power to produce lift and enable controlled flight. While regulating the RPM of the rotor is an important function, it is a secondary process that occurs as a part of the overall power transfer mechanics. The primary role remains the efficient transfer of power from the engine to the rotors. Additionally, controlling aerodynamic drag and maintaining flight stability are outcomes influenced by rotor operation but do not encompass the main function of the transmission system itself.