HELI-EXPO 2013 Professional Education Courses

Helicopter Aerodynamics Without Equations

March 3, 2013 | | 8:00 am to 5:00 pm
Las Vegas Convention Center, North Hall, Level 2
Pilot Skills Track


Register by midnight, January 25, 2013, and save!
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by Jan. 25
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by Jan. 25
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after Jan. 25
Nonmember Registration
after Jan. 25
$400 $600 $525 $775


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Register on-site, March 1-8. Learn More.

In this course, the legendary Ray Prouty will present difficult and often misunderstood helicopter aerodynamic concepts, removing the equations, ambiguity, and myth. This course has something to offer for anyone in the helicopter industry.

Participants will learn about —

  • Hover flight – downwash, brownout, power required, and figure of merit considerations
  • Vertical flight – power required for climb, vertical autorotation, power settling, and tail rotor in the vortex ring state
  • Forward flight – power required, control to maintain trim, maximum speed, compressibility effects, and retreating blade stall
  • Maneuvering – steady turns, pull-ups, pitch-overs, autorotation, and air-show maneuvers
  • Static stability – speed stability and maneuver stability
  • Dynamic stability – longitudinal modes (short period, phugoid), and lateral-directional modes (Dutch roll, spiral dive)
  • History – how Bell and Sikorsky got started.

At the completion of the course, attendees will have a basic understanding of helicopter aerodynamics and how it impacts aircraft performance.

Ray Prouty has more than 50 years of experience in the helicopter industry. He spent the majority of his career at Hughes Helicopters, but has worked as helicopter aerodynamicist, stability and control specialist, and group engineer at several companies, including Sikorsky Aircraft, Bell Helicopter, and Lockheed Aircraft. Since his retirement in 1987, Prouty has kept up with his interests by writing, teaching, and consulting about helicopters. He has a B.A. in aeronautical engineering from the University of Washington.

Who Should Attend
Pilots, flight instructors, ground instructors, engineering students, aerodynamics students, helicopter accident investigators, and anyone with a desire to learn more about helicopters.

Course Prerequisites

Professional Development Credit
FAA Wings and Aviation Maintenance Technician programs