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#1
January 27th 04, 07:15 PM
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How do you know your guage wasn't wrong?
"Peter R." wrote in message ... Dave ) wrote: I'd like to know how you get in icing when the temperature is +5. I have never seen ice until the the gauge reads 0 or below. I have picked up ice when the digital thermometer on an '02 C172 read +3c. -- Peter ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- 
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#2
January 27th 04, 07:37 PM
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Dave ) wrote:
How do you know your guage wasn't wrong? The digital gauge was calibrated when new and the aircraft is about one and one half years old. Is it possible that it slipped out of calibration a degree or two? I suppose. But since every icing article I have ever read states that icing can occur at temperatures higher than 0c, I have no trouble believing that my icing encounters above 0c actually did occur one to three degrees above 0c. -- Peter ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---
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#3
January 28th 04, 12:48 AM
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This was gleaned form talking to a Phd (meteorology) instructor,
Citation, Super Cub pilot. Water will not freeze until it is 0 C or below. Just because it is 0 degrees or below doesn't mean water HAS to freeze. There is themometer error, but there are also lower pressure areas on the wing/airframe, and due to the lower pressure, the temperature lowers. It is possible to get ice when your themometer reads above zero, but it will be zero or below where the ice is. If you get ice on your themometer and it reads above zero, your themometer is out of calibration. Peter R. wrote in message ... Dave ) wrote: How do you know your guage wasn't wrong? The digital gauge was calibrated when new and the aircraft is about one and one half years old. Is it possible that it slipped out of calibration a degree or two? I suppose. But since every icing article I have ever read states that icing can occur at temperatures higher than 0c, I have no trouble believing that my icing encounters above 0c actually did occur one to three degrees above 0c. -- Peter ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---
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#4
January 29th 04, 08:14 PM
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"Doug" wrote in message om... This was gleaned form talking to a Phd (meteorology) instructor, Citation, Super Cub pilot. Water will not freeze until it is 0 C or below. Just because it is 0 degrees or below doesn't mean water HAS to freeze. There is themometer error, but there are also lower pressure areas on the wing/airframe, and due to the lower pressure, the temperature lowers. It is possible to get ice when your themometer reads above zero, but it will be zero or below where the ice is. Water to ice state transition is statistical in nature and not always governed by group temperature.
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#5
January 27th 04, 07:42 PM
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Dave ) wrote:
How do you know your guage wasn't wrong? I forgot to include the point of my adding to this thread: I use these experiences (granted that they are somewhat limited to two winters of IFR flying downwind of the Great Lakes, US) of encountering ice above 0c when flight planning a cruise altitude, as well as when making a go/no decision due to ice. Are you implying that you are comfortable that ice will *not* occur above 0c and therefore plan accordingly? -- Peter ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---
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#6
January 27th 04, 09:13 PM
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Yes I am comfortable flying in temperatures above 0 and I do plan
accordingly. Although as soon as I see 0 on the OAT then I also plan accordingly. (Like change altitude , turn around, land etc.) "Peter R." wrote in message ... Dave ) wrote: How do you know your guage wasn't wrong? I forgot to include the point of my adding to this thread: I use these experiences (granted that they are somewhat limited to two winters of IFR flying downwind of the Great Lakes, US) of encountering ice above 0c when flight planning a cruise altitude, as well as when making a go/no decision due to ice. Are you implying that you are comfortable that ice will *not* occur above 0c and therefore plan accordingly? -- Peter ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---
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