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Constant Speed Prop Basics

Gemini Sparkle

Key Takeaways:

  • Prioritize safety by not adjusting power controls (throttle, prop, mixture) until reaching a safe altitude after takeoff.
  • Follow specific power adjustment sequences: reduce throttle first then prop to decrease power, and advance prop first then throttle to increase power.
  • Always consult your aircraft's Pilot's Operating Handbook (POH) for specific power settings, operating procedures, and runup recommendations.
  • Move the propeller to the full forward position before landing to ensure maximum climb performance for a potential go-around, timing it to avoid excessive noise.
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Chances are you’ve come across descriptions of how constant-speed propellers work, oh, about a thousand times since your piloting days began. Instead of rehashing how they operate, let’s talk about tips you can use to get the most out of your constant-speed prop.

The first tip is offered with safety in mind: After you push the throttle full forward, gather momentum on the runway and lift off, don’t touch the throttle (black knob), propeller (blue knob) or mixture (red knob) until you’ve reached a safe altitude. After all, if something is going to break, it might do so because you moved one of these levers. It’s best to gain altitude before adjusting power settings.

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