Icebound wrote:

"Dylan Smith" wrote in message
...

On 2005-08-21, Roy Smith wrote:

Carb ice isn't going to form in a few seconds.

It's even less likely to form if there's no fuel!



Oh?

Carb ice forms because the reduction of pressure in the intake, causes the
air to cool below freezing, and if moist enough, the moisture condenses and
freezes onto the butterfly.

If there is no fuel but the motor continues to be turned by the prop, does
not carb suction (reduction in pressure ) still exist to some extent?

Yes, but the temperature reduction due to the loss of pressure is fairly
miniscule compared to the temperature reduction due to the evaporation
of the fuel.

Matt