---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Tue 02/10/09: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:48 PM - Carb ice on a 912 (Les Goldner) 2. 06:34 PM - Re: Carb ice on a 912 (Roger Lee) 3. 10:35 PM - Re: Re: Carb ice on a 912 (Les Goldner) ________________________________ Message 1 _____________________________________ Time: 05:48:32 PM PST US From: "Les Goldner" Subject: RotaxEngines-List: Carb ice on a 912 I had to fly the other day in my Zenith 701 when OAT and dew point were both Zero-degrees. Erring toward caution, I flew high and over landable places since I don't have carb heat. This flight got gray matter going. I have heard that the 912ULS isn't very prone to icing but would like a more definitive answer to the carb icing prospects in a 912ULS that is inside a cowling. How important is it to have carb heat if you only fly high mountains in summer months? Les ________________________________ Message 2 _____________________________________ Time: 06:34:21 PM PST US Subject: RotaxEngines-List: Re: Carb ice on a 912 From: "Roger Lee" The majority of 912ULS's in the world or USA don't have carb heat. Because of the variable throat slide the Bing 64's are not prone to carb ice. Some say they have had it, but there are several well authored articles looking for anyone to actually prove they really had carb ice. I have posted these articles from the aviation world and well known authors on other sites before. There will be people who say they had it and pulled carb heat on and the roughness went away, but other situations can cause engine roughness. The aviation people are still looking for someone to prove carb ice in the 912ULS. Carb heat in in many planes using the 912 is more of a recent development over the last several years. The 912 has been around since late 1989. They haven't been falling out of the air from carb ice and they fly in every environment in the world. There are after market carb heating units for the carbs. One is electric and another hot coolant. Is it impossible well: "Never say Never" -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=229658#229658 ________________________________ Message 3 _____________________________________ Time: 10:35:25 PM PST US From: "Les Goldner" Subject: RE: RotaxEngines-List: Re: Carb ice on a 912 Thanks Roger, Les Do not archive -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Roger Lee Sent: Tuesday, February 10, 2009 6:33 PM Subject: RotaxEngines-List: Re: Carb ice on a 912 The majority of 912ULS's in the world or USA don't have carb heat. Because of the variable throat slide the Bing 64's are not prone to carb ice. Some say they have had it, but there are several well authored articles looking for anyone to actually prove they really had carb ice. I have posted these articles from the aviation world and well known authors on other sites before. There will be people who say they had it and pulled carb heat on and the roughness went away, but other situations can cause engine roughness. The aviation people are still looking for someone to prove carb ice in the 912ULS. Carb heat in in many planes using the 912 is more of a recent development over the last several years. The 912 has been around since late 1989. They haven't been falling out of the air from carb ice and they fly in every environment in the world. There are after market carb heating units for the carbs. One is electric and another hot coolant. Is it impossible well: "Never say Never" -------- Roger Lee Tucson, Az. 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