Ice and de-icing

[danhenri]

Hello,

Which are the minimum temp conditions to de-ice before take-off, even if there is no precipitations and no visible ice or snow on the wings ?

Thanks for answering,

Daniel.

 

[Rodeo]

I think, if there is no visible ice on the airframe (in the case of the simulated Challenger here, you'd only have to look at the wings), you wouldn't need to use de-ice at all?

Anti-ice is another thing, there are indeed guidelines for that but I cannot remember them off the top of my head.

Regards,

Tim

[danhenri]

Thanks for answering Tim. I asked this question because I experienced 2 crashes at take-off : the plane was unable to climb. There was no precipitations nor visible ice on the wings, but the temperature was 1-2° C and the dew point closed to that.

So, I suspect that in some cases, there is a need to de-ice the plane even without visible ice on the wings.

Edited January 23, 2022 by danhenri

[RonMont]

On 1/23/2022 at 3:23 AM, danhenri said:

Thanks for answering Tim. I asked this question because I experienced 2 crashes at take-off : the plane was unable to climb. There was no precipitations nor visible ice on the wings, but the temperature was 1-2° C and the dew point closed to that.

So, I suspect that in some cases, there is a need to de-ice the plane even without visible ice on the wings.

Under 10C, you should have the AI on, no matter what, until up and clear of moisture.

Edited September 9, 2023 by RonMont
Typo