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N585MR Flies!

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coop85(at)bellsouth.net
Guest

Posted: Sat Aug 19, 2006 7:46 am Post subject: N585MR Flies!

I finally took to the skies this morning with a (as seems to be the

standard) very uneventful flight.  The #1 CHT got warmer than I'd like so I

didn't keep the power as high as I planned, but otherwise it flew great!

Lots of spectators and encouragement from family and the squadron mates so

that made it that much more exciting.



One question for the group regarding the high CHT.  I know it will drop as

the engine breaks in some, but I have the standard kit baffle that covers

the leading edge of the cylinder (on both sides).  It seems that reducing

the size some would help but I'd be open to ideas before I start hacking

away at it.  The other temps were within reason (<400 with #1 pushing 435

and slightly above momentarily) so I'm hesitant to make any huge changes to

the rest of the baffling or cowling without further data.



Thanks for all the help on-line, especially Tim Olsen, the process would

have taken a whole lot longer had I worked in a vacuum of information.



Marcus

40286 - FLYING, 39hrs and 38 minutes to passengers!



Do not archive

dav1111(at)cox.net
Guest

Posted: Sat Aug 19, 2006 10:20 am Post subject: N585MR Flies!

Way to go Marcus!!!



Russ Daves

N710RV (Phase II - In Paint Shop)



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james.k.hovis(at)gmail.co
Guest

Posted: Sat Aug 19, 2006 10:32 am Post subject: N585MR Flies!

I'm envious! When will pictures be posted?

  

 JKH



 

 On 8/19/06, Russell Daves <dav1111(at)cox.net (dav1111(at)cox.net)> wrote: [quote]--> RV10-List message posted by: "Russell Daves" <dav1111(at)cox.net  (dav1111(at)cox.net)>



Way to go Marcus!!!



Russ Daves

N710RV (Phase II - In Paint Shop)



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armywrights(at)adelphia.n
Guest

Posted: Sat Aug 19, 2006 10:34 am Post subject: N585MR Flies!

Awesome.  How big was your RV grin?  Gotta have a few pics.



Rob Wright

#392

Closing Wings next week



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pitts_pilot(at)bellsouth.
Guest

Posted: Sat Aug 19, 2006 3:27 pm Post subject: N585MR Flies!

Marcus Cooper wrote:



 	  Quote: 	
		  



I finally took to the skies this morning with a (as seems to be the

standard) very uneventful flight.  The #1 CHT got warmer than I'd like so I

didn't keep the power as high as I planned, but otherwise it flew great!

Lots of spectators and encouragement from family and the squadron mates so

that made it that much more exciting.



One question for the group regarding the high CHT.  I know it will drop as

the engine breaks in some, but I have the standard kit baffle that covers

the leading edge of the cylinder (on both sides).  It seems that reducing

the size some would help but I'd be open to ideas before I start hacking

away at it.  The other temps were within reason (<400 with #1 pushing 435

and slightly above momentarily) so I'm hesitant to make any huge changes to

the rest of the baffling or cowling without further data.



Don't hack!  That 'fence' forces the air to go down vertically through 
	


the fins.  If you hack it off, the airflow will go up and over the 

cylinder providing no cooling.

Linn

do not archive



 	  Quote: 	
		  

Thanks for all the help on-line, especially Tim Olsen, the process would

have taken a whole lot longer had I worked in a vacuum of information.



Marcus

40286 - FLYING, 39hrs and 38 minutes to passengers!



Do not archive

Tim(at)MyRV10.com
Guest

Posted: Sat Aug 19, 2006 7:15 pm Post subject: N585MR Flies!

That's awesome Marcus!   My wife was just reminding me that today

was your day, so we were waiting for the news.   Yes, I did trim

my baffles (in front of the cylinders) down.  One at least 3/8"

and one about 1/4".  I may actually trim them another 1/4" to

3/8" on both sides yet.  It did help the temps, as 1&2 were the

hot ones on those first flights before cutting them.  I do know

that Vic removed his completely on his -10 and he's having luck

with that too, so I wouldn't worry too much about trimming them

back a little.  When tall, they cut off most of the flow to the

front of those cylinders.



Glad to hear it was uneventful.  Nothing worse than an

eventful first flight, huh? 



Tim Olson - RV-10 N104CD - Flying

do not archive

Marcus Cooper wrote:

 	  Quote: 	
		   

 

 I finally took to the skies this morning with a (as seems to be the

 standard) very uneventful flight.  The #1 CHT got warmer than I'd like so I

 didn't keep the power as high as I planned, but otherwise it flew great!

 Lots of spectators and encouragement from family and the squadron mates so

 that made it that much more exciting.

 

 One question for the group regarding the high CHT.  I know it will drop as

 the engine breaks in some, but I have the standard kit baffle that covers

 the leading edge of the cylinder (on both sides).  It seems that reducing

 the size some would help but I'd be open to ideas before I start hacking

 away at it.  The other temps were within reason (<400 with #1 pushing 435

 and slightly above momentarily) so I'm hesitant to make any huge changes to

 the rest of the baffling or cowling without further data.

 

 Thanks for all the help on-line, especially Tim Olsen, the process would

 have taken a whole lot longer had I worked in a vacuum of information.

 

 Marcus

 40286 - FLYING, 39hrs and 38 minutes to passengers!

 

 Do not archive

Tim(at)MyRV10.com
Guest

Posted: Sat Aug 19, 2006 7:16 pm Post subject: N585MR Flies!

Ah, and then there's the other side to the story.  See, now

you have stuff to think about, Marcus.



Tim Olson - RV-10 N104CD - Flying

do not archive

linn Walters wrote:

 	  Quote: 	
		   

 

 Marcus Cooper wrote:

 

> 

>

> I finally took to the skies this morning with a (as seems to be the

> standard) very uneventful flight.  The #1 CHT got warmer than I'd like 

> so I

> didn't keep the power as high as I planned, but otherwise it flew great!

> Lots of spectators and encouragement from family and the squadron 

> mates so

> that made it that much more exciting.

>

> One question for the group regarding the high CHT.  I know it will 

> drop as

> the engine breaks in some, but I have the standard kit baffle that covers

> the leading edge of the cylinder (on both sides).  It seems that reducing

> the size some would help but I'd be open to ideas before I start hacking

> away at it.  The other temps were within reason (<400 with #1 pushing 435

> and slightly above momentarily) so I'm hesitant to make any huge 

> changes to

> the rest of the baffling or cowling without further data.

>

 Don't hack!  That 'fence' forces the air to go down vertically through 

 the fins.  If you hack it off, the airflow will go up and over the 

 cylinder providing no cooling.

 Linn

 do not archive

 

>

> Thanks for all the help on-line, especially Tim Olsen, the process would

> have taken a whole lot longer had I worked in a vacuum of information.

>

> Marcus

> 40286 - FLYING, 39hrs and 38 minutes to passengers!

>

> Do not archive

>  

>

wayne.e(at)grandecom.net
Guest

Posted: Sun Aug 20, 2006 4:16 am Post subject: N585MR Flies!

Congratulations Marcus. I'm sure you must be on  cloud nine having completed your first flight successfully. Good luck in your 40  hour fly off.

  

 Wayne Edgerton #40336

  

 do not archive 

   [quote][b]

PILOTDDS(at)aol.com
Guest

Posted: Sun Aug 20, 2006 2:07 pm Post subject: N585MR Flies!

I also trimed the baffles on one and two.It helped quite a bit they still run a little hotter than I would like and I adjust climbout accordingly.I ordered a Sam James plenum and will report the results.When OAT"s are in the 90"s #1 will hit 425 at a climbout of 120kts.Also Alex De dominicis developed louvres which he reports lowers chts quite a bit.  [quote][b]

Tim(at)MyRV10.com
Guest

Posted: Sun Aug 20, 2006 4:20 pm Post subject: N585MR Flies!

This brought me a couple of questions...



1) Do you have a regular or Sam James cowl, that you're going

to fit the plenum into?



2) Can you describe the louvres at all, like where they're placed

and what they look like?



Tim Olson - RV-10 N104CD - Flying

do not archive

PILOTDDS(at)aol.com wrote:

 	  Quote: 	
		   I also trimed the baffles on one and two.It helped quite a bit they 

 still run a little hotter than I would like and I adjust climbout 

 accordingly.I ordered a Sam James plenum and will report the 

 results.When OAT"s are in the 90"s #1 will hit 425 at a climbout of 

 120kts.Also Alex De dominicis developed louvres which he reports lowers 

 chts quite a bit.

 

 *

mritter509(at)msn.com
Guest

Posted: Sun Aug 20, 2006 5:16 pm Post subject: N585MR Flies!

Tim,



Alex has pictures of his 10 with the louvers installed.  Not sure how he 

installed them but believe he used RTV and pop rivets because of the 

honeycomb cowling.



Mark





 	  Quote: 	
		  From: Tim Olson <Tim(at)MyRV10.com>

Reply-To: rv10-list(at)matronics.com

To: rv10-list(at)matronics.com

Subject: Re: N585MR Flies!

Date: Sun, 20 Aug 2006 19:19:59 -0500






This brought me a couple of questions...



1) Do you have a regular or Sam James cowl, that you're going

to fit the plenum into?



2) Can you describe the louvres at all, like where they're placed

and what they look like?



Tim Olson - RV-10 N104CD - Flying

do not archive

PILOTDDS(at)aol.com wrote:

>I also trimed the baffles on one and two.It helped quite a bit they still 

>run a little hotter than I would like and I adjust climbout accordingly.I 

>ordered a Sam James plenum and will report the results.When OAT"s are in 

>the 90"s #1 will hit 425 at a climbout of 120kts.Also Alex De dominicis 

>developed louvres which he reports lowers chts quite a bit.

>

>*

pitts_pilot(at)bellsouth.
Guest

Posted: Sun Aug 20, 2006 9:20 pm Post subject: N585MR Flies!

I guess with all the success stories showing up about trimming the baffles ..... go ahead and trim.  If you're still having high temps, take a look down through the fins around the spark plug .....some cylinders have flashing that closes off the air passage.  A drop light in the lower cowl will help a lot.  Patience and a jewelers file will open them up, although I've seen some flashing so thick that a drill bit was used.

 Linn

 do not archive

 PILOTDDS(at)aol.com (PILOTDDS(at)aol.com) wrote:

 [quote]I also trimed the baffles on one and two.It helped quite a bit they still run a little hotter than I would like and I adjust climbout accordingly.I ordered a Sam James plenum and will report the results.When OAT"s are in the 90"s #1 will hit 425 at a climbout of 120kts.Also Alex De dominicis developed louvres which he reports lowers chts quite a bit.       	  Quote: 	
		  

	
 [b]

Ray.R.Doerr(at)sprint.com
Guest

Posted: Mon Aug 21, 2006 5:29 am Post subject: N585MR Flies!

I had the same high temps on my #1 and #2 cylinders during the

flyoff period.  The weekend we did the flyoff it was 98 - 102 on the

ground.  I started by cutting down the front baffles a 1/2" at a time.

It was getting better each time, but in the end, I had to remove the

front baffle plate completely on both #1 and #2 cylinder.  Temps are

real close now with the hot weather in Kansas.



Thank You

Ray Doerr

40250

N519RV Flying.



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