A Few Aero-Tips For The (Icing) Season #6: Known Icing Conditions | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-12.01.25

AirborneNextGen-
11.18.25

Airborne-Unlimited-11.19.25

Airborne-AffordableFlyers-11.20.25

AirborneUnlimited-11.21.25

LIVE MOSAIC Town Hall (Archived): www.airborne-live.net

Sat, Dec 05, 2009

A Few Aero-Tips For The (Icing) Season #6: Known Icing Conditions

Ice... Ain't Nice!

For those of us who have "hit the boots" (or the equivalent system on your favorite bird) a few times in the last few days due to the ever-present seasonal 'charms' of in-flight icing, we thought a series of short tips from Cirrus Design's Scott Winter (yes, that IS his real name) might help us all to consider some of the realities of this time of year. So... here is the sixth of seven tips for dealing with icing. Y'all be careful out there!

Icing Aero-Tip #6: Known Icing Conditions

In a recent letter of interpretation (which is still being "clarified"), the FAA Eastern Region offered a definition of what is considered known icing conditions. The letter states that known icing conditions exist when visible moisture or high relative humidity combines with temperatures near or below freezing.

It continues to state that since clouds are visible moisture, flying through them when the temperature is at or below freezing would constitute flight into known icing conditions. Althought somewhat ameliorated since then, the letter strictly concludes with "Flight into known icing conditions when the airplane flight manual or pilot operating handbook prohibit such flight constitutes a violation whether the aircraft accretes ice or not."

About Scott Winter

At the time that this series was authored, Scott was a member of the Flight Standards Department at Cirrus Design Corporation in Duluth, MN (one of those places that see more than its fair share of icing encounters). Born and raised in Milwaukee, WI, he discovered his passion for aviation at an early age. After obtaining his Private Pilot Certificate prior to his senior year in high school, he attended Minnesota State University, Mankato (MSU) and graduated with a Bachelor's degree majoring in Professional Flight. In December 2006, he completed his Master's of Science degree from MSU spending time focusing on aviation weather, scenario-based training, and visualization techniques to enhance the methods used to educate aviators.

Note: ANN thanks Cirrus Pilot William Dobson and other members of the Cirrus community, for the use of the excellent SR20 icing pix...

FMI: www.cirrusdesign.com, www.aopa.org/asf/publications/sa11.pdf

Advertisement

More News

ANN's Daily Aero-Term (11.29.25): Waypoint

Waypoint A predetermined geographical position used for route/instrument approach definition, progress reports, published VFR routes, visual reporting points or points for transiti>[...]

ANN's Daily Aero-Linx (11.29.25)

Aero Linx: Sentimental Journey to Cub Haven Sentimental Journey Flyin began in 1986 with a group of dedicated volunteers working to provide a sentimental return to Lock Haven, the >[...]

NTSB Prelim: Jabiru USA Sport Aircraft LLC J230-SP

The Pilot Would Often Fly Over Their House At A Low Altitude And That Family Members Would Go Outside To Wave On November 14, 2025, at 1708 eastern standard time, a Jabiru USA Spor>[...]

Classic Aero-TV: Crafting The Future of eVTOL Infrastructure

From 2024 (YouTube Edition): Volatus Infrastructure Paves The Way The name “Volatus” seems to be everywhere these days, popping up in a series of partnerships and proje>[...]

Klyde Morris (11.28.25)

Fortnite Conquers All, Klyde FMI: www.klydemorris.com>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC


Debugging Information
ColdFusion Server Enterprise 2023,0,16,330828
Template /subscribe.cfm
Time Stamp 02-Dec-25 05:32 AM
Locale English (US)
User Agent Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Remote IP 10.0.20.1
Host Name 10.0.20.1


Execution Time

Total Time Avg Time Count Template
64 ms 64 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc | onRequest(/subscribe.cfm) ] from C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc
63 ms 63 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/parsed/main.textpost.cfm
31 ms 31 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/actTextPost.cfm
7 ms 7 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/actWidgets.cfm
5 ms 5 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/dspWidgets.cfm
4 ms 4 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc | onRequestStart(/subscribe.cfm) ] from C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc
2 ms 2 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/qryTextPost.cfm
2 ms 2 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/display/dspTextPost.cfm
2 ms 2 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/dspBannerAds.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/fusebox.init.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/qryAnnouncements.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/qryAudio.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/qryNewscats.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/qryWidVideo.cfm
1 ms 1 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/dspSidebar.cfm
1 ms 1 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc | onRequestEnd(/subscribe.cfm) ] from C:/inetpub/wwwroot/clients/aero-news.net/Application.cfc
1 ms 1 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc | compileRequest(main.textpost, CFC: fckeditor.fb551.fusebox5.myFusebox) ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc
1 ms 1 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc | init(fusebox, [complex value], [complex value]) ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/CustomTags/bph/QuerySim.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/cftags/sharelinks.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/comments/actDisqus.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/model/main/actFooter.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/comments/dspDisqus.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/display/dspAnnouncements.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/dspNewscats.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/layAnnNew.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_234BannerZone.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_admin.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_flashAd.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_podcasts.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_search.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_today.cfm
0 ms 0 ms 1 C:/inetpub/wwwroot/clients/aero-news.net/view/layout/widgets/widget_topvideos.cfm
0 ms 0 ms 13 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/components/utils.cfc | RandomNumber() ] from C:/inetpub/wwwroot/clients/aero-news.net/components/utils.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/components/utils.cfc | tagstripper(<h2>Ice... Ain't Nice!</h2>

For those of us who have "hit the boots" (or the equivalent system on your favorite bird) a few times in the last few days due to the ever-present seasonal 'charms' of in-flight icing, we thought a series of short tips from Cirrus Design's Scott Winter (yes, that IS his real name) might help us all to consider some of the realities of this time of year. So... here is the sixth of seven tips for dealing with icing. Y'all be careful out there!

) ] from C:/inetpub/wwwroot/clients/aero-news.net/components/utils.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxAction.cfc | getAccess() ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxAction.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc | expandFuseboxPath(parsed/) ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc
0 ms 0 ms 2 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc | getCoreToAppRootPath() ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc | getVersion() ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxApplication.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxEvent.cfc | init([complex value], [complex value], CFC: fckeditor.fb551.fusebox5.myFusebox) ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/fuseboxEvent.cfc
0 ms 0 ms 2 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc | getMyself() ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc | getSelf() ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc
0 ms 0 ms 1 CFC[ C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc | trace(Fusebox, Request completed) ] from C:/inetpub/wwwroot/clients/aero-news.net/fb551/fusebox5/myFusebox.cfc
3 ms  STARTUP, PARSING, COMPILING, LOADING, & SHUTDOWN
72 ms  TOTAL EXECUTION TIME
red = over 250 ms average execution time


SQL Queries

post (Datasource=AeroNews, Time=2ms, Records=1) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryTextPost.cfm @ 05:32:38.038
SELECT
	cb.ContentBlockID as id,
	cb.ContentBlockName as title,
	cb.Display,
	ct.DisplayTemplate,
	cb.HTMLContent as description,
	cb.ForumCode,
	cb.Icon,
	convert(varchar(20), cb.Display, 111) AS GroupDate,
	t.TeaserText as teaser,
	cb.SortOrder
FROM
	vwContentBlock cb INNER JOIN ContentType ct
	ON cb.ContentTypeCode = ct.ContentTypeCode
	LEFT OUTER JOIN Teaser t
	ON cb.ContentBlockID = t.ContentBlockID AND t.TeaserType <> 'L'
WHERE
	cb.ContentBlockID = ?
	AND Status IN ('60','80') AND (Display <{ts '2025-12-02 05:32:38'} OR Display IS NULL)
Query Parameter Value(s) -
Parameter #1(CF_SQL_varchar) = A6C578E1-F9E4-403F-AC56-6A4265CFFBE4

GetAnnouncements (Datasource=AeroNews, Time=0ms, Records=1, Cached Query) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryAnnouncements.cfm @ 05:32:38.038
SELECT HTMLContent
FROM ContentBlockLive
WHERE ContentBlockKey = 'ANNOUNCE' 
	AND Status = 60 
	AND ((Display <{ts '2025-12-02 05:00:00'} OR Display IS NULL) 
	AND (Expire > {ts '2025-12-02 05:00:00'} OR Expire IS NULL))
qryAudio (Datasource=AeroNews, Time=0ms, Records=0, Cached Query) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryAudio.cfm @ 05:32:38.038
SELECT NewID() as id,
	CAST(episodesid AS VARCHAR(38)) as myid,
	title,
	CAST(subtitle  AS Varchar(800)) as teaser, 
	CAST(summary AS Varchar(2000)) as description,
	ApprovedDate as published,
	episodefile as filelocation, 
	podcastsid as categoryid,
	CAST('audio' AS char(8)) as mytype,
	ApprovedDate as GroupDate,
	SPACE(2) AS previewimage,
	0 AS sortorder
FROM episodes
	WHERE Approved = 1 
		
	AND ApprovedDate <{ts '2025-12-02 05:00:00'} ANd ApprovedDate > {ts '2025-11-28 05:00:00'} 

Order By published DESC, sortorder DESC
qryWidVideo (Datasource=AeroNews, Time=0ms, Records=3, Cached Query) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryWidVideo.cfm @ 05:32:38.038
SELECT TOP 3
videoId as id, 
	convert(varchar(38), videoId) as myid, 
	title, 
	CAST(description AS Varchar(2000)) as description, 
	Cast(teaser AS Varchar(800))as teaser,
	published,
	filelocation, 
	categoryid,
	CAST('video' AS char(8)) as mytype,
	published as GroupDate,
	previewimage,
	0 AS sortorder
	
FROM Videos
WHERE active = 1 AND approved = 1 AND published <{ts '2025-12-02 05:00:00'} 
ORDER BY published DESC
widgetsorted (Datasource=, Time=4ms, Records=6) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\actWidgets.cfm @ 05:32:38.038
SELECT *
	FROM qryWidgets
	WHERE wname IN('flashAd','today','search','podcasts','topvideos','adsection234')
	ORDER By sortorder
NewsCategories (Datasource=AeroNews, Time=0ms, Records=7, Cached Query) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryNewscats.cfm @ 05:32:38.038
SELECT 
			ContentTypeName, ContentTypeCode
		FROM ContentType 
		WHERE CategoryCode = 'NEWS' AND CONTENTTYPECODE <> 'ATRVNW'
		ORDER BY ContentTypeName
NewsCategories2 (Datasource=AeroNews, Time=0ms, Records=8, Cached Query) in C:\inetpub\wwwroot\clients\aero-news.net\model\main\qryNewscats.cfm @ 05:32:38.038
SELECT 
			ContentTypeName, ContentTypeCode
		FROM ContentType 
		WHERE CategoryCode = 'NEWS'
		ORDER BY ContentTypeName


Scope Variables

CGI Variables:
AUTH_PASSWORD=
AUTH_TYPE=
AUTH_USER=
CERT_COOKIE=
CERT_FLAGS=
CERT_ISSUER=
CERT_KEYSIZE=
CERT_SECRETKEYSIZE=
CERT_SERIALNUMBER=
CERT_SERVER_ISSUER=
CERT_SERVER_SUBJECT=
CERT_SUBJECT=
CF_TEMPLATE_PATH=C:\inetpub\wwwroot\clients\aero-news.net\subscribe.cfm
CONTENT_LENGTH=0
CONTENT_TYPE=
CONTEXT_PATH=
GATEWAY_INTERFACE=CGI/1.1
HTTPS=off
HTTPS_KEYSIZE=
HTTPS_SECRETKEYSIZE=
HTTPS_SERVER_ISSUER=
HTTPS_SERVER_SUBJECT=
HTTP_ACCEPT=*/*
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
HTTP_ACCEPT_LANGUAGE=
HTTP_CONNECTION=Keep-Alive
HTTP_COOKIE=CFID=5151428; CFTOKEN=1a9078ac8786d7ea-B2332802-0034-21D9-7C224AC0D860F380; JSESSIONID=48784B1FBAEB4427C392C0F3AF83F0A3.cfusion
HTTP_HOST=www.aero-news.net
HTTP_REFERER=
HTTP_URL=/subscribe.cfm?do=main.textpost&id=A6C578E1-F9E4-403F-AC56-6A4265CFFBE4
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
LOCAL_ADDR=10.0.20.10
PATH_INFO=
PATH_TRANSLATED=C:\inetpub\wwwroot\clients\aero-news.net\subscribe.cfm
QUERY_STRING=do=main.textpost&id=A6C578E1-F9E4-403F-AC56-6A4265CFFBE4
REMOTE_ADDR=10.0.20.1
REMOTE_HOST=10.0.20.1
REMOTE_USER=
REQUEST_METHOD=GET
SCRIPT_NAME=/subscribe.cfm
SERVER_NAME=www.aero-news.net
SERVER_PORT=80
SERVER_PORT_SECURE=0
SERVER_PROTOCOL=HTTP/1.1
SERVER_SOFTWARE=Microsoft-IIS/10.0
WEB_SERVER_API=
Cookie Variables:
CFID=5151428
CFTOKEN=1a9078ac8786d7ea-B2332802-0034-21D9-7C224AC0D860F380
JSESSIONID=48784B1FBAEB4427C392C0F3AF83F0A3.cfusion
Session Variables:
sessionid=48784B1FBAEB4427C392C0F3AF83F0A3.cfusion
urltoken=CFID=5151428&CFTOKEN=1a9078ac8786d7ea-B2332802-0034-21D9-7C224AC0D860F380&jsessionid=48784B1FBAEB4427C392C0F3AF83F0A3.cfusion
URL Parameters:
do=main.textpost
id=A6C578E1-F9E4-403F-AC56-6A4265CFFBE4
Debug Rendering Time: 48 ms