Prop Governors

Introduction

  • Note difference between Blade Angle and Pitch Angle
  • Key Blade Pitch Angles
  • Feathered
  • BETA Range
    • Reverse
    • Beta
    • Locks
  • ALPHA Range
    • Flight Idle (Low Limit)
    • Max Pitch (Hi Limit)
  • Dead Zones

Governor Types

  • Constant Speed
  • Constant Tip Mach
  • Manual Pitch
  • Constant Average AoA

Alpha / Beta

BETA / Reverse

  • They're really the same thing, sort-off

Auto-Feathering

  • An electronic system, common on King Airs.
  • NTS - "Hey Buddy, let me help you out, you only have seconds to react before things get outta hand!"

Alpha Range

  • "Move Aside...I got this". What do you want? Constant RPMs? Constant Mach? Constant AoA? Talk to me...."