I might add some insight since I got my PPL at Grand Forks airport, North Dakota a number of years ago. We trained in Cessna 150's with Continental O-200. We were allowed to fly until it hit -10 F below zero before flying activities were suspended. Pre-heat was mandatory below 35F. I now own a Cessna 182 with the Continental O-470 in central Iowa. I have a Cessna cold weather kit for it...todays low temp was a chilly -8F. The cold weather kit consists of 2 parts. The first is wrapping the exhaust breather tube with a insulated tube just like the Air Conditioning guys put on your outside Air conditioning pipes. This prevents from the engine moisture from freezing in the breather tube. The second part is 2 restrictor plates that are screwed over the 2 engine cowling openings behind the prop. This reduces the openings to about 40% of the original size. I have heard of artic pilots flying in temps as low a -35 to -40 F with it installed. The cold weather restrictor plates must be removed in temperatures above 40 F.
Brant Hollensbe Des Moines Ia. ----- Original Message ----- From: Jeff Scott via KRnet <krnet@list.krnet.org> To: krnet@list.krnet.org Cc: Jeff Scott <jscott.pla...@gmx.com> Sent: Wed, 27 Dec 2017 19:41:54 -0500 (EST) Subject: Re: KR> Breakfast or Lunch Meet up Ha! If you can start it, it will fly. It's a good idea to preheat below 20°, but you are good down to roughly -30 before the aluminum case shrinks enough for it to clamp the bearings onto the crank. You start it without preheating then, you will trash the engine. The real question is whether you have enough of a heater to keep from freezing to death during the flight. I was plenty cold enough flying Christmas day. I've got a heater, but not a good heater in the KR. I'm usually good down to about 10°, but I'd want to be somewhere warm when I get out and I'd want to be flying in bright sunlight to help heat the cockpit. Hey, I'm new to the south. Surely it doesn't stay cold here for very long. When I was young, I used to fly my biplane all winter in Iowa. The challenge then was hand propping a stone cold engine in single digit or colder temps. I'm not so young and hardy anymore. :o) -Jeff Scott Cherokee Village, AR ---------------------------------------- Subject: Re: KR> Breakfast or Lunch Meet up Oh but the stories we would have to tell. Count me in..... Jeff, How cold is to cold for a Continental ? Mike Sylvester kr2s builder Birmingham,AL. Cell no.205-966-3854 ________________________________ Subject: Re: KR> Breakfast or Lunch Meet up I'm with Mark on the "it's too cold to fly cross country". I checked and the high here is forecast 17F to 20F all weekend. I might get in a local flight but I too would hate to be down in the woods somewhere. Brrrrrrrrrrrrrr Larry Flesner _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
