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Rotec radial engine?

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tigermiller1595(at)msn.co
Guest

Posted: Mon Dec 04, 2006 6:12 am Post subject: Rotec radial engine?

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> Has anybody  looked at using one of those 110 hp Rotec radials on a  601 XL?  Anyone got any knowledge or experience with them or the company?  

 Thanks

 Dave Miller 

 (scratch build 601 XL)

                                                                      [quote][b]

n963wb(at)frontiernet.net
Guest

Posted: Mon Dec 04, 2006 7:16 am Post subject: Rotec radial engine?

Greetings,

  

 Seriously considered the Rotec radial for my 701, would  really have looked and sounded neat.  Talked with representatives while at  Oshkosh and they were very informative and had nothing but good comments for  their product.  At the time there were not a lot of these engines out so  not much of a track record.  I eventually rejected the radial in favor of  the 2200 Jabiru because that installation is 100 pounds lighter.   

  

 After a long summer of other projects I am finally able to  get back to pulling rivets.  Need to finish the flaperons and slats then  can start final assembly.

  

 Dick Neitzel

 Sayner, WI

 701 Jabiru

 N962WB

    [quote][b]

btucke73(at)yahoo.com
Guest

Posted: Mon Dec 04, 2006 8:11 am Post subject: Rotec radial engine?

[quote][b]

Eddie G.

Joined: 03 Nov 2006
Posts: 15
Location: Los Angeles, CA

Posted: Mon Dec 04, 2006 11:03 am Post subject: Re: Rotec radial engine?

You mean like this?  

http://www.rotecradialengines.com/customers/MickDye.htm



Two other things to keep in mind when chosing Rotec vs an engine like Jabiru: it uses reduction gear and I think it only has a 1000 hour TBO.



Eddie

tigermiller1595(at)msn.co
Guest

Posted: Mon Dec 04, 2006 11:47 am Post subject: Rotec radial engine?

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Has anybody  looked at using one of those 110 hp Rotec radials on a  601 XL?  Anyone got any knowledge or experience with them or the company?  

 Thanks

 Dave Miller 

 (scratch build 601 XL)



                                                                         [quote][b]

amyvega2005(at)earthlink.
Guest

Posted: Mon Dec 04, 2006 12:05 pm Post subject: Rotec radial engine?

Eddie,

Niether the rotec nor the Jabiru have GEar reduction, The TBO on the jabiru is 1000 on the top end only.  Rotec is a great engine though.



Juan



--

Eddie G.

Joined: 03 Nov 2006
Posts: 15
Location: Los Angeles, CA

Posted: Mon Dec 04, 2006 12:22 pm Post subject: Re: Rotec radial engine?

See 1st and 5th bullet from the top. Rotec has a 3:2 Planetary Speed Reduction Unit.



http://www.rotecradialengines.com/specs.htm



Eddie

 	  amyvega2005(at)earthlink. wrote: 	
		  Eddie,

Niether the rotec nor the Jabiru have GEar reduction, The TBO on the jabiru is 1000 on the top end only.  Rotec is a great engine though.



Juan



--

craig(at)craigandjean.com
Guest

Posted: Mon Dec 04, 2006 12:25 pm Post subject: Rotec radial engine?

 	  Quote: 	
		  > Niether the rotec nor the Jabiru have GEar reduction...


	


Oh?



http://www.rotecradialengines.com/engdev.htm



"It was apparent that the R2800 despite its good direct drive

characteristics could benefit from a small amount of propeller speed

reduction as is the case with most small capacity engines. Rotec Engineering

spent the next period designing and manufacturing their new planetary PSRU

which was carefully designed to fit neatly into front nose with minimal

disruption to the out side dimensions. They called on the help of well known

Australian aero-engineer Bill Whitney  to do some calculations regarding the

new design. "Bill is simply the best, we are in debt to him, few have his

knowledge about all facets of aviation dynamics, he has been very generous

in his willingness to help our new company get ahead particularly regarding

technical issues".



The (PRSU) as mentioned earlier is in planetary configuration, at a

reduction ratio of 3:2  so engine revs are relatively low when compared to

the high revving ratios other manufactures employ." They are literally

trying to wring the last drop of HP from their small capacity engines".

Ratios approaching 4:1 are not uncommon amongst some manufactures.



The first tests on the new geared R2800 proved to be nothing short of a

revelation; the propeller diameter went from the direct drive 68" to 76"

with more pitch than before. The PSRU had allowed the R2800 to realise more

potential as the engine had 'unloaded', the propeller range had increased

dramatically allowing for more user flexibility."



-- Craig

Eddie G.

Joined: 03 Nov 2006
Posts: 15
Location: Los Angeles, CA

Posted: Mon Dec 04, 2006 12:52 pm Post subject: Re: Rotec radial engine?

I just received my "The 912 Competition" video. It shows how Rotec is put together. Nice workmanship. Looks like almost everything is CNC'ed at their shop. But the planetary gears looks a bit too thin, unless that's a norm in aviation for that size engine.

graeme(at)coletoolcentre.
Guest

Posted: Mon Dec 04, 2006 2:46 pm Post subject: Rotec radial engine?

The engine has the classic radial engine features  including oil leaks, high fuel consumption bulky.

 they sound great! look good! reliability? Have been fitted  to the Storch, Hornet (STOL oversize modified 701) and others here in  Australia. I think they look best on classic aircraft designs  there is one  in a Flybaby and it looks right.

  

 Graeme Bell Cairns Australia

  

 do not archive 

 [quote]   ---

amyvega2005(at)earthlink.
Guest

Posted: Mon Dec 04, 2006 3:41 pm Post subject: Rotec radial engine?

shit................ I owe you a beer.  Do you drink Dos XX?



Juan



--

JAPhillipsGA(at)aol.com
Guest

Posted: Mon Dec 04, 2006 5:17 pm Post subject: Rotec radial engine?

Dave, I saw and HEARD one on the front of something ? Might have been and RV-3 looking plane ? Sounded great taxing by and pure sex taking off !  One of the hanger Rats said it was a Rotec 7 cylinder. Sounded like it had torque to spar. Bill of Georgia

 do not archive  [quote][b]

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