Principles of Helicopter Flight: Understand What the Rotor Is Doing

Cover of Principles of Helicopter Flight from ASA

Every helicopter student remembers the first attempt at a hover: three controls, each affecting the others, and a machine that seems determined to drift in every direction at once. Over time the hands learn what to do, but the questions remain. Why does adding collective make the nose yaw? Why does the helicopter want to drift sideways in a hover?

The answers are in aerodynamics, and rotor aerodynamics is more involved than a fixed wing’s. Principles of Helicopter Flight is an ASA title on that subject, for pilots who want to understand what the rotor system is doing, not just how to respond to it.

Quick answer: Principles of Helicopter Flight (ASA-PHF-2) is an ASA book on helicopter aerodynamics and flight principles, for helicopter students, instructors, and airplane pilots curious about rotorcraft who want to understand how helicopters fly, available on Skyfarer and at Skyfarer Shop.

Cover of Principles of Helicopter Flight from ASA
Principles of Helicopter Flight, ASA-PHF-2

At a glance

  • Title. Principles of Helicopter Flight.
  • Publisher. Aviation Supplies & Academics (ASA).
  • Part number. ASA-PHF-2.
  • Subject. The aerodynamics and principles of helicopter flight.

Who it’s for

  • Helicopter students who want the theory behind what they feel in the controls.
  • Helicopter CFI candidates who must explain aerodynamics clearly.
  • Airplane pilots adding a rotorcraft rating.

Pilot tip: Read a topic, then ask your instructor to demonstrate it on the next flight. Translating tendency, for example, makes far more sense once you’ve felt the helicopter drift and seen the correction.

Where to buy

Principles of Helicopter Flight (ASA-PHF-2) is sold by Skyfarer Shop. Find it on the Skyfarer marketplace or order directly from Skyfarer Shop. Either link shows the current price, shipping options and return terms.

Frequently asked questions

Is it for airplane pilots?

Its subject is helicopters. Airplane pilots adding a rotorcraft rating will find it relevant.

Does it replace the helicopter flight manual?

No. Operating procedures and limitations come from your helicopter’s flight manual.

What’s the part number?

ASA-PHF-2.


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