Cold Weather Altimetry – Cold Weather Flying

by Robin Maiden

7 comments

1 Kent Wien { 03.04.08 at 8:40 pm }

Great way to describe it, Robin. Ironically, we covered this today in recurrent. I think I prefer your method though.

Great site Robin!

Kent

2 Mike Maher { 03.25.08 at 11:30 pm }

Hey Robin,
Nice explaination. The real test comes when you are not flying a precision approach with a glideslope (although your barometric altitude will be lower for cold weather, but not by much at 200 ft HAT).

When you’re flying a cold weather non-precision approach with no glideslope (GPS synthetic or otherwise), your real threat is at the intermediate fix altitude, vs the IAF altitude (1000′ ft terrain/obstacle clnc) or the MDA (less deviation closer to the altimeter source, and 250-300 ft obstacle clnc).

At the intermediate fix (500′ terrain/obstacle clnc) you have the most altimeter deviation with the least TERPS clnc criteria, and therefore, you have the worst of all possible scenarios.

I’ll e-mail you some of the cold wx research I did at the USAF Advanced Inst school.
Mike

3 Web Resources for Cold Weather Altimetry - Cold Weather Flying | Robin's Roost { 08.29.08 at 6:28 am }

[...] forget to watch my video on the subject here – Cold Weather Altimetry addthis_url = ‘http%3A%2F%2Fwww.robinmaiden.com%2Fcold-weather-altimetry-resources%2F’; [...]

4 Bill { 12.11.08 at 11:09 am }

Robin,

I am a military flight school instructor and would like to use your video. If I can get your permission to use it, I want to embed it in a powerpoint slide for a presentation I will us at a safety stand down to enhance flight safety for our future military aviators. Will you email me the flash video so I can put it into my presentation? Full credit will be given to you and I would use a direct link if I could guarantee that I would have internet access every time I give this presentation.

Thank you in advance, I know how busy you must be.

Bill

5 Ian Edwards { 04.21.09 at 11:02 pm }

I am flying Glf 550 aircraft in Either Russia or Dubai, so see the two problems, often on the same flight.
The Russians in most airports do not compensate for the low temperature on the below TL numbers, also in the very cold partsd of Russia, there are often severe temperature inversions at 3000 ft, so the temp can change from -40 to only -20 on the approach, in a matter of 100 feet or so. The auto throttles dont like it at all.
Your remarks about alt busts due to over warm days is also valid, and I will ask friends in DXB ATC how this is catered for here.

My original posts on PP were related to the hot corrections, and you clarified that for me.

Thanks.

Ian

6 Mark Imhof { 12.15.09 at 8:03 pm }

I am a CFII and would like to use your video during a presentation. If I cite your work, would you be willing to email me your video? Thank you. Mark Imhof

7 Mark Imhof { 12.15.09 at 8:05 pm }

I am a CFII and would like to use your video during a presentation. If I cite your work, would you be willing to email your video to imhofm86@gmail.com

Thank you,

Mark Imhof

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