Constant Speed Props / Manifold Pressure

ALSO SEE:

• Engines / Powerplants
• Multiengine / High Performance / Complex

Emergencies:

• First and foremost - always follow your POH
• Need to glide?  Pull the prop full aft when able.  This creates less drag.
• "The Drill"
• PITCH - for blue line
• Mixture (for altitude - it's not binarily forward)
• Props - forward
• Throttles - forward
• Flaps - set
• Gear - up
• Identify AND SLAP your leg
• Verify and pull the throttle back
• Feather
• Mixture - as appropriate
• Engine failure checklist

Governor check:

• I have never seen this described in any POH, but it's a great idea.  After you cycle the prop, pull the prop back until there's a noticeable change (about 100 RPM).  Then gently push up the throttle.  The RPM will increase, but if the governor is working, it should quickly roll back to the starting RPM.  Courtesy:  Steve Jackson

Manifold Pressure:

• Manifold Pressure Sucks (article by AVweb's John Deakin)

Propeller check:

• The age-old word of mouth (WOM) is to cycle the prop three times.  No POH prescribes it, but it's not a bad idea.  You can watch the RPM, manifold pressure and oil pressure for each cycle.  Additionally, it warms up the oil that drives the propeller change.

Sayings / Expressions / Memory aids:

• Always keep Prop above Throttle (unless POH allows differently)
• Blue Sky / Black Earth
• When you add power (go up), you increase propeller first, throttle next
• When you decrease power (go down), you pull the throttle first
• If configuration is Throttle, Prop, Mixture (left to right)
• Gather power up (mixture, prop, throttle)
• Push Power Away (throttle, prop, mixture)
• Pull Power In (mixture, prop, throttle)
• Throw Power Away (throttle, prop, mixture)
• Throttle Back, Power Up
• Reduce the throttle first, Push the Power (Prop) up first

More info...

• A graphical approach (youtube)

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