Rotor Research Helicopter Info Site | ||||
|
|
"THE FORGOTTEN LIFE SAVER"
Fine, you may say, but what has this to do with engine stoppage?
Lets look at a couple of cases:
A puzzle? Well this is what happened:
Remembering our basics again, you will recall that when air velocity increases (going from a high to low pressure) it’s temperature drops considerably.
If conditions are right, any water (moisture) suspended in the air turns to ice and builds up very quickly to block the 2 air gaps at the throttle valve and the engine immediately stops.
This is what happened to the two pilots above.
Have another read your flight manual! Understand how and WHEN carb ice forms and how to prevent it! It can happen at over 30 degrees C. - read this link
Many Helicopter pilots initially trained on fixed wing light aircraft and have experienced or heard stories about fixed wing engines running rough, through carburetor icing, and then being cleared by use of carburetor heat. The news I have for those pilots is that the engine kept running, even though it was starving for air and wanted to quit, due to the flywheel inertia effect of the large metal propeller.
What helicopter pilots have to remember is:
Understand how to use Carb Heat and use it often!
|
|
||||||||||||||||||||||||||||||
Copyright © 1995 - 2023 The Owner of This Site - (Rotor Research
(ABN) - All Rights
Reserved. Please read our Legal / Disclaimer |
|
|||