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edgraydallas
Joined: 13 Jun 2008
Posts: 74
Location: Dallas, Tx
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 Posted: Tue Jan 22, 2013 2:23 pm Post subject: rotax engines |
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I built a Kitfox with a Rotax, and fortunately flew it and survived. My new kitfox has a beautiful Viking engine for little more than half the cost of a 912, and more power. Flying with a Rotax is like being married to an alcoholic bipolar woman. Why would anyone put up with all the glitches, burps, etc., and pay extra to do it? Oh, and they recently discovered fuel injection for just a few thousand more! Ed Gray Dallas
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Pat Reilly
Joined: 06 Aug 2009
Posts: 345
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| Posted: Tue Jan 22, 2013 7:16 pm Post subject: rotax engines |
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Ed, I love my Rotax engine.....however it's a 582. I haven't had the experience of owning the 912 but could never figure out why you would design an aircraft engine to rev twice what you wanted and have to install a reduction box to run the required rpm's, an auto or snowmobile conversion engine, but not a dedicated aircraft engine. The expense and complexity of a 912 as a dedicated aircraft engine, as you state, makes no sense. As Dave in Canada has pointed out, "It is a misnomer to call conversion from a 582 to the 912, "an upgrade".
Pat Reilly
Mod 3 582 Rebuilt
Rockford, IL
On Tue, Jan 22, 2013 at 4:22 PM, Ed Gray <egraylaw(at)swbell.net (egraylaw(at)swbell.net)> wrote:
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I built a Kitfox with a Rotax, and fortunately flew it and survived. My new kitfox has a beautiful Viking engine for little more than half the cost of a 912, and more power. Flying with a Rotax is like being married to an alcoholic bipolar woman. Why would anyone put up with all the glitches, burps, etc., and pay extra to do it? Oh, and they recently discovered fuel injection for just a few thousand more! Ed Gray Dallas
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arget="_blank">http://www.matronics.com/Navigator?Kitfox-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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Pat Reilly
Mod 3 582 Rebuild
Rockford,IL [quote][b]
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dave
Joined: 22 Sep 2006
Posts: 1382
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| Posted: Wed Jan 23, 2013 1:46 am Post subject: rotax engines |
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Ed - please post some numbers on the performace of your viking engine . I have been watching this development for a few years. Videos wold help too.
HEads up side by side planes - should be able to find alot of 912 powered Kitfox that would love to have a challenge.
Like i always said about the rotax -- great engines.
biggest issues are from the ignorance of the operators. the othe 99 % of the user have no issues.
Dave
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Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
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| Posted: Wed Jan 23, 2013 6:25 am Post subject: rotax engines |
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Ed,
I appreciate your candor ! You have a pretty accurate view of the Rotax ,I think. (although overall,I do like mine, most of the time,....maybe)
We had an Escapade drop by our strip on his way to south Fl to have a Viking engine installed about a year ago. He had a Jabaru engine that he was very displeased with and wanted it out ! You can see his plane on the Viking web site.
How about some info,flight report with the Viking engine. Did you make the mount or did they ? How much did it cost ? Who did the installation ? How about weight and CG ? What other mods did you have to do to accommodate the engine?
As you can see, I am interested in that engine especially after talking with the Escapade owner.
Dick Maddux
Fox 4
912 UL
Milton,Fl
[quote][b]
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cliffh(at)outdrs.net
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| Posted: Wed Jan 23, 2013 7:27 am Post subject: rotax engines |
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Been following this discussion on 912 engines with interest.
I have a 912 ULS engine in my model 4 Speedster.
I have nearly 800 hrs on and am very satified with it.
I have found that when the outside temp is below 40 degrees I put a hair dyer into the front of the cowl and a blanket over the cowl and leave it for 30-45 minutes. All you have to do is get the carbs warm. I have a primer system and I give it four squerts. hit the starter and it will start right up with out all of the shaking. On shut down I stablize the rpm to 2000 and shut off the ignition. It stops without any shaking.
The only issue I have had with this engine is that I have had to replace the rubber flange that holds the right carb on. I have had it split three times, always on the right side.
Floran Higgins
Helena Mt
Speedster
912 ULS
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lcfitt(at)sbcglobal.net
Guest
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| Posted: Wed Jan 23, 2013 8:25 am Post subject: rotax engines |
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Interesting discussion. Dick's mention of the Jabaru guy not liking his engine - which when introduced was to be the wave of the future, then a friend who put a UL engine in his Just Highlander - with lots of growing pains including a replaced crank. You guys that are going "Infant" - hats off to you but I'm too old for that. Everything I had go wrong with my first and now my second 912 was caused by me just as Dave suggests. What will prove to be best? For sure, only some aging will tell that and for me that is good reason to stay with the 20 year old and multi million hour Rotax regardless of the fires per rev. Sorry to bring this up but price? It is the sorry state of the US $. My wife flies internationally with United Airlines and she will be happy to tell what a $ will buy overseas compared to what it bought in the $10,000 Rotax days - I just asked. In the early 90s the exchange rate in Japan was ~ 250 yen per dollar. Now it is about 70 yen per dollar.
A thought on choosing an engine. Check to see if the engine manufacturer issues service bulletins. In the past some did not. An auto conversion company I have in mind never did. Looking at UL and Viking shows that as with the Rotax, neither came out of the Engineers Shed perfect. And both of these companies are still in diapers comparatively speaking so no one really knows yet what will be found there down the way.
Lowell
From: Catz631(at)aol.com (Catz631(at)aol.com)
Sent: Wednesday, January 23, 2013 6:24 AM
To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)
Subject: Re: rotax engines
Ed,
I appreciate your candor ! You have a pretty accurate view of the Rotax ,I think. (although overall,I do like mine, most of the time,....maybe)
We had an Escapade drop by our strip on his way to south Fl to have a Viking engine installed about a year ago. He had a Jabaru engine that he was very displeased with and wanted it out ! You can see his plane on the Viking web site.
How about some info,flight report with the Viking engine. Did you make the mount or did they ? How much did it cost ? Who did the installation ? How about weight and CG ? What other mods did you have to do to accommodate the engine?
As you can see, I am interested in that engine especially after talking with the Escapade owner.
Dick Maddux
Fox 4
912 UL
Milton,Fl
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href="http://www.matronics.com/Navigator?Kitfox-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
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