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Performance of the mark III with 912 or jabiru?

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herbgh(at)nctc.com
Guest

Posted: Sun Nov 16, 2008 10:03 am Post subject: Performance of the mark III with 912 or jabiru?

Jerry



     Seems that the Titan cannot run a long enough prop to make the 

912 a good alternative?   Basically...Jabs do well on clean planes. 

titans,Sonex etc.....Redriven 912's  are well suited to any plane 

where they can swing a long and more efficient prop.. Herb



   ps   a Jab is absolutely unsuited to a Kolb MkIII or Cobra...



At 11:45 AM 11/16/2008, you wrote:

 	  Quote: 	
		  Rick,



I appreciate your informed input.  I can't speak for Jabs/Rotax 

4-cycle engines on Kolbs, but I can on Titans.  The arguments from 

both sides, I've found, change nobody's mind, typically generating 

more heat than light.  That said, I had both a Jab 2200 and a 3300 

on my Titan and found performance comparable to reported performance 

of comparable 912s (of course the 100 hp 912 had fewer horses than 

the 128 hp Jab), and had slightly less fuel burn.  Every sport pilot 

here in Madera flies behind/in front of a Jab, with one also flying 

behind a 912S.  I could be a little biased, I've owned five Jab 

engines, and if buying another engine, that's prolly what I'd buy 

again, for various reasons, but I wouldn't hesitate to own a Rotax 

either.  For sure, very early Jabs had teething problems and didn't 

produce near the power claimed, but that was long ago and far, far 

in the past.  And, none of us have had to land out because of an 

engine problem.



Now, back to my cellar....



Jerry

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jbhart(at)onlyinternet.ne
Guest

Posted: Mon Nov 17, 2008 12:43 pm Post subject: Performance of the mark III with 912 or jabiru?

At 07:01 AM 11/17/08 -0800, you wrote:

 	  Quote: 	
		  

Jerry,



There was nothing imprecise or unqualified about my statement, I did my 

research very well before I decided which engine to put on my Kolb.  When 
	


someone asks a question, I give them good information in a very clear and 

direct manner.   Maybe you did not want to hear what I had to say, but my 

information was not unqualified or imprecise...   

 	  Quote: 	
		  


	


Mike,



You are not precise.  From before:



"The 912 is a better engine on a Kolb, PERIOD.  If you ended up with the 

inferior Jabiru on your Kolb, then I'm sorry for you, but that is no reason 

to try to get others to make the same mistake."



You used the word "Kolb" and the implication is that nothing but a 912 is a 

good engine.  That rules out all lower hp Rotax and/or any other engine 

mounted on a Kolb and this implies that a lot us who fly Kolbs are using 

inferior engines.  You may not want to hear this, but I really enjoy flying 

my Kolb FireFly with out a 912 mounted on it. 



Fly safe!



Jack B. Hart FF004

Winchester, IN

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slyck(at)frontiernet.net
Guest

Posted: Mon Nov 17, 2008 3:09 pm Post subject: Performance of the mark III with 912 or jabiru?

Now that we've beat that one to death.... back to SEAFOAM!

BB, puny 3 cylinder suzuki, redrive  (and it actually flies!)

On 17, Nov 2008, at 3:43 PM, Jack B. Hart wrote:

 	  Quote: 	

 <jbhart(at)onlyinternet.net>

 At 07:01 AM 11/17/08 -0800, you wrote:

> 

> Jerry,

>

> There was nothing imprecise or unqualified about my statement, I  

> did my

 research very well before I decided which engine to put on my  

 Kolb.  When

 someone asks a question, I give them good information in a very  

 clear and

 direct manner.   Maybe you did not want to hear what I had to say,  

 but my

 information was not unqualified or imprecise...

>

 Mike,

 You are not precise.  From before:

 "The 912 is a better engine on a Kolb, PERIOD.  If you ended up  

 with the

 inferior Jabiru on your Kolb, then I'm sorry for you, but that is  

 no reason

 to try to get others to make the same mistake."

 You used the word "Kolb" and the implication is that nothing but a  

 912 is a

 good engine.  That rules out all lower hp Rotax and/or any other  

 engine

 mounted on a Kolb and this implies that a lot us who fly Kolbs are  

 using

 inferior engines.  You may not want to hear this, but I really  

 enjoy flying

 my Kolb FireFly with out a 912 mounted on it.

 Fly safe!

 Jack B. Hart FF004

 Winchester, IN

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