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BMW engine VS Rotax engine

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ingle99

Joined: 04 Dec 2007
Posts: 1
Location: Cochise, AZ

Posted: Sun Dec 09, 2007 11:41 pm Post subject: BMW engine VS Rotax engine

Good Morning Kolb Flyers,

  

      We are new comers to the LSA type of flying & would welcome all feed back.

 We are looking at 2 Mark 111 Classics.

      One has a 150 hrs BMW R-1100-S (98 HP) engine driving a Rotax C gear box (3.47:1) with a 71" Kiev 3 blade prop.

      The 2nd A/C has a 618 Rotax 20 hrs engine and airframe.

      

      Would like to hear pros & cons on both engines.

  

 Thanks for the help,

  

 Bill Ingle

Share life as it happens with the new Windows Live. Share now!  [quote][b]

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_________________
Bill Ingle

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Mon Dec 10, 2007 5:55 am Post subject: BMW engine VS Rotax engine

Morning Bill:

  

 I don't have any personal experience with either  engine, other than hearsay, so can not give you an educated answer.

  

 However, If I was new to LSA type flying I would  stick to a popular system.  

  

 I have been flying the MKIII powered with 582,  912UL, and 912ULS, for nearly 2,800 hours.  I started out with the 582  which lasted about 220 hours before the engine seized.  That drove me in  the direction of the then new 912UL in 1993.  After 1200+ hours on the  912UL, it was replaced with a 912ULS.  Another 1200+ hours and the 912ULS  was replaced with the second 912ULS which now has 160 hours on it.  The 912  series engines have proven to be 100% reliable.  Can not beat that record  when it comes to flying.  They are very low maintenance and are proven  performers.

  

 The BMW engines on MKIII's are still in the  developmental stage.  If you like being a pioneer, as some of our good Kolb  List members do, then you might like to experiment with the BMW.  I have  always liked this engine, but never committed myself to put one on my  airplane.

  

 The 618 is no longer in production for  aircraft.

  

 Take care,

  

 john h

 mkIII

  

  

 [quote]         We are new comers    to the LSA type of flying & would welcome all feed back.

We are looking    at 2 Mark 111 Classics.

     One has a 150 hrs BMW    R-1100-S (98 HP) engine driving a Rotax C gear box (3.47:1) with a 71"    Kiev 3 blade prop.

     The 2nd A/C has a 618    Rotax 20 hrs engine and airframe.

        

     Would like to hear pros & cons on both    engines.

 

Thanks for the help,

 

Bill Ingle

 

[b]

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

NeilsenRM(at)comcast.net
Guest

Posted: Mon Dec 10, 2007 10:06 am Post subject: BMW engine VS Rotax engine

Bill

  

 Again I have never flown either engine. The Rotax 618 was  my original choice of engines for my MKIIIC but moved to a VW when Rotax started  raising their prices and I'm very happy I didn't use that engine. It seems like  the 618 had some problems primarily due the exhaust valve they refer to  as RAVE. Any way it was not in production very long.

  

 The BMW was on my short list for engines a couple of  times. The engine on motor cycles is fantastic. There are something like 3-4  flying on Kolbs but its like pulling teeth to get their owners to talk about  them. I think it is a good engine but? Maybe this will get the BMW guys  talking????

  

 Do not archive

  

 Rick Neilsen

 Redrive VW powered MKIIIC

 [quote]   ---

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