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Lower Cowl Mounts
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planesmith(at)hotmail.com
Guest

Posted: Mon Mar 03, 2008 8:01 am Post subject: Lower Cowl Mounts

Looking through some of the old postings, I found some discussion on replacing the lower cowl mounts with nutplates and screws. Are these modified mounts still holding up well during flight? Also were #10 countersunk screws and nut plates used? And finally what was the mounting plate made from?

 Thanks,

  

 Vern Smith (#324) 

Helping your favorite cause is as eaessenger/IM/Home/?source=text_hotmail_join' target='_new'>Learn more.  [quote][b]

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Mon Mar 03, 2008 8:38 am Post subject: Lower Cowl Mounts

Not countersunk screws....round head screws.  Yes,

they're holding up great for people, and there are

some now that I know personally (I'll let them speak up

if they wish) who didn't install them until after they

had issues with the hinges.  But, there really are

no problems with nutplates and screws...it's really

secure.

Tim Olson - RV-10 N104CD - Flying



Vernon Smith wrote:

 	  Quote: 	
		   Looking through some of the old postings, I found some discussion on 

 replacing the lower cowl mounts with nutplates and screws. Are these 

 modified mounts still holding up well during flight? Also were #10 

 countersunk screws and nut plates used? And finally what was the 

 mounting plate made from?

 Thanks,

  

 Vern Smith (#324)

ricksked(at)embarqmail.co
Guest

Posted: Mon Mar 03, 2008 9:33 am Post subject: Lower Cowl Mounts

I made mine out of .063 aluminum, I think I used #8, three per side.



Rick Sked

40185

---

planesmith(at)hotmail.com
Guest

Posted: Mon Mar 03, 2008 2:20 pm Post subject: Lower Cowl Mounts

Tim & Rick,

  

 Thanks for the replies!

  

 Vern Smith (#324 finishing?)



do not archive

   

 > Date: Mon, 3 Mar 2008 12:30:36 -0500

[quote] From: ricksked(at)embarqmail.com

 To: rv10-list(at)matronics.com

 Subject: Re: Lower Cowl Mounts

 

 --> RV10-List message posted by: Rick Sked <ricksked(at)embarqmail.com>

 

 I made mine out of .063 aluminum, I think I used #8, three per side.

 

 Rick Sked

 40185

 ---

scottmschmidt(at)yahoo.co
Guest

Posted: Mon Mar 03, 2008 3:26 pm Post subject: Lower Cowl Mounts

Can someone point me to some photos. This is a modification I would like to make. I've already lost 2 eyelets. 



Scott Schmidt

scottmschmidt(at)yahoo.com



On Mar 3, 2008, at 12:30 PM, Rick Sked <ricksked(at)embarqmail.com> wrote:






I made mine out of .063 aluminum, I think I used #8, three per side.



Rick Sked

40185

---

Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Mon Mar 03, 2008 4:23 pm Post subject: Lower Cowl Mounts

Hi Scott,



This will show you some photos.  Here's a page with some photos towards

the bottom:

http://www.myrv10.com/N104CD/finishing/20050911/index.html



Here are a couple other ones for you too:

http://www.myrv10.com/N104CD/finishing/20050918/index.html

http://www.myrv10.com/N104CD/finishing/20050911/RV200509110038.html

http://www.myrv10.com/N104CD/finishing/20050918/RV200509120004.html



I used some heavier stock when I did mine, and I put a plate on the

fuselage side, and then another plate on the cowl side that is

"permanent" to give the cowl more backing.



Not sure the thickness anymore, but maybe .063 like Rick said.  It

seems it was about the same as the thickness of the panel material.

Tim Olson - RV-10 N104CD - Flying



Scott Schmidt wrote:

 	  Quote: 	
		   

 

 Can someone point me to some photos. This is a modification I would like to make. I've already lost 2 eyelets. 

 

 Scott Schmidt

 scottmschmidt(at)yahoo.com

 

 On Mar 3, 2008, at 12:30 PM, Rick Sked <ricksked(at)embarqmail.com> wrote:

 

 

 

 I made mine out of .063 aluminum, I think I used #8, three per side.

 

 Rick Sked

 40185

Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Mon Mar 03, 2008 4:49 pm Post subject: Lower Cowl Mounts

Scott here's a link to 2 photos (click next to see the 2nd)

http://deemsrv10.com/album/Sec%2047%20Spinner%20and%20Cowling/slides/DSC04175.html

I've since trimmed the inside portion of the 'flange' so that it doesn't 

stick out and interfere with the air exiting the lower cowl. (A John Cox 

suggestion)



Deems Davis # 406

'Its all done....Its just not put together'

http://deemsrv10.com/



Scott Schmidt wrote:

[quote] 



 Can someone point me to some photos. This is a modification I would like to make. I've already lost 2 eyelets. 



 Scott Schmidt

 scottmschmidt(at)yahoo.com



 On Mar 3, 2008, at 12:30 PM, Rick Sked <ricksked(at)embarqmail.com> wrote:



 



 I made mine out of .063 aluminum, I think I used #8, three per side.



 Rick Sked

 40185

 ---

capsteve

Joined: 09 Jan 2006
Posts: 111
Location: NIAGARA FALLS NY

Posted: Mon Mar 03, 2008 7:35 pm Post subject: Lower Cowl Mounts

hi deems,

 did you use a shim under the plate to space out for the thickness of the

cowl?? 

Steven dinieri 



[quote] --

Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Mon Mar 03, 2008 8:08 pm Post subject: Lower Cowl Mounts

I didn't use a shim. In my case I didn't need one. I have a Will James 

cowl, I believe the construction is different from the Van's cowl and 

most likely the dimensions also.



btw, I'm using countersunk screws with ss countersunk washers.



Deems Davis # 406

'Its all done....Its just not put together'

http://deemsrv10.com/



Steven DiNieri wrote:

[quote] 



 hi deems,

  did you use a shim under the plate to space out for the thickness of the

 cowl?? 

 Steven dinieri 



   

> --

ricksked(at)embarqmail.co
Guest

Posted: Mon Mar 03, 2008 9:21 pm Post subject: Lower Cowl Mounts

I didn't need a shim on the bottom, only the sides. Where you have to make up for the curve of the fuselage sides.



Rick Sked

40185

---

indigoonlatigo(at)msn.com
Guest

Posted: Tue Mar 04, 2008 10:50 am Post subject: Lower Cowl Mounts

Deems,

 I did a quick look through all you cowl photos and looks like you did a fine job. I will also using a James cowl, but going with the vertical induction model of cowl. Was your cowl that cowl, than you had to modify that area. In your photos the intake was originally oblong and then you did a mod to a round intake. 

 Wil informed me that there is currently only one vertical induction cowl operating and was kind enough to inform me he wished he had more of a tract record before selling me one. He said that the one currently flying is cooling fine.

 John G.

[quote] Date: Mon, 3 Mar 2008 17:46:17 -0700

 From: deemsdavis(at)cox.net

 To: rv10-list(at)matronics.com

 Subject: Re: RV10-List: Lower Cowl Mounts

 --> RV10-List message posted by: Deems Davis <deemsdavis(at)cox.net>

 Scott here's a link to 2 photos (click next to see the 2nd)

 http://deemsrv10.com/album/Sec%2047%20Spinner%20and%20Cowling/slides/DSC04175.html

 I've since trimmed the inside portion of the 'flange' so that it doesn't 

 stick out and interfere with the air exiting the lower cowl. (A John Cox 

 suggestion)

 Deems Davis # 406

 'Its all done....Its just not put together'

 http://deemsrv10.com/

 Scott Schmidt wrote:

 > --> RV10-List message posted by: Scott Schmidt <scottmschmidt(at)yahoo.com>

 >

 > Can someone point me to some photos. This is a modification I would like to make. I've already lost 2 eyelets. 

 >

 > Scott Schmidt

 > scottmschmidt(at)yahoo.com

 >

 > On Mar 3, 2008, at 12:30 PM, Rick Sked <ricksked(at)embarqmail.com> wrote:

 >

 > --> RV10-List message posted by: Rick Sked <ricksked(at)embarqmail.com>

 >

 > I made mine out of .063 aluminum, I think I used #8, three per side.

 >

 > Rick Sked

 > 40185

 > ---

Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Tue Mar 04, 2008 11:37 am Post subject: Lower Cowl Mounts

My cowl is NOT vertical induction, it was originally made for the BPE 

forward facing fuel servo and Cold Air sump.  The oblong induction ring 

is the characteristic 'signature' for that cowl. When I was ready to 

install a filtered air system, there were none available that could be 

easily adapted to that Oval induction ring. I spoke with and followed 

another -10 BPE cold air builder as he customized a filtered air system 

using a K&N filter, Will, had offered to work with me in designing and 

building a filtered air intake for the BPE set up, (that he would 

subsequently offer to other builders) if I could provide him a 'model' 

(made from expandable foam) of the bottom of the cowl and the servo/cold 

air sump. I was ready to follow one of these approaches, when I happened 

on the information regarding the Rod Bowers design. I was Very impressed 

with the design and the '3 in one' capabilities of 

RAM/filtered/Alternate air sources, and after speaking w/ Rod, I 

concluded that while hacking up my cowl in order to replace the oval 

induction ring w/ the circular ring sounded alarming, it really turned 

out to be less work for me than either of the other 2 approaches, plus I 

picked up the benefit of the RAM air mp increase. I'm really happy with 

the results so far, although I'm obviously not flying and haven't 

validated any performance.



Deems Davis # 406

'Its all done....Its just not put together'

http://deemsrv10.com/



IIRC the vertical induction cowl that is flying on an RV-10 is in 

Canada, there were some initial issues with heat and cooling,  Will 

designed a modification wihc inclluded a larger exit area (around the 

exhaust stacks) and that appears to have solved that problem. my 

understanding is that he subsequently modified his mold to include the 

larger exit area.



Deems Davis # 406

'Its all done....Its just not put together'

http://deemsrv10.com/



 	  Quote: 	
		   *

 *

Mike Whisky

Joined: 05 Jun 2006
Posts: 336
Location: Switzerland

Posted: Tue Mar 04, 2008 12:58 pm Post subject: Re: Lower Cowl Mounts

Guys,



did anyone use camlocks for the bottom cowling mounts?



Michael

_________________
RV-10 builder (flying)
#511

indigoonlatigo(at)msn.com
Guest

Posted: Tue Mar 04, 2008 1:38 pm Post subject: Lower Cowl Mounts

Thanks for the info

  

 John G.

  

 DO NOt Archive



 	  Quote: 	
		   Date: Tue, 4 Mar 2008 12:33:54 -0700

 From: deemsdavis(at)cox.net

 To: rv10-list(at)matronics.com

 Subject: Re: Lower Cowl Mounts

 

 --> RV10-List message posted by: Deems Davis <deemsdavis(at)cox.net>

 

 My cowl is NOT vertical induction, it was originally made for the BPE 

 forward facing fuel servo and Cold Air sump. The oblong induction ring 

 is the characteristic 'signature' for that cowl. When I was ready to 

 install a filtered air system, there were none available that could be 

 easily adapted to that Oval induction ring. I spoke with and followed 

 another -10 BPE cold air builder as he customized a filtered air system 

 using a K&N filter, Will, had offered to work with me in designing and 

 building a filtered air intake for the BPE set up, (that he would 

 subsequently offer to other builders) if I could provide him a 'model' 

 (made from expandable foam) of the bottom of the cowl and the servo/cold 

 air sump. I was ready to follow one of these approaches, when I happened 

 on the information regarding the Rod Bowers design. I was Very impressed 

 with the design and the '3 in one' capabilities of 

 RAM/filtered/Alternate air sources, and after speaking w/ Rod, I 

 concluded that while hacking up my cowl in order to replace the oval 

 induction ring w/ the circular ring sounded alarming, it really turned 

 out to be less work for me than either of the other 2 approaches, plus I 

 picked up the benefit of the RAM air mp increase. I'm really happy with 

 the results so far, although I'm obviously not flying and haven't 

 validated any performance.

 

 Deems Davis # 406

 'Its all done....Its just not put together'

 http://deemsrv10.com/

 

 IIRC the vertical induction cowl that is flying on an RV-10 is in 

 Canada, there were some initial issues with heat and cooling, Will 

 designed a modification wihc inclluded a larger exit area (around the 

 exhaust stacks) and that appears to have solved that problem. my 

 understanding is that he subsequently modified his mold to include the 

 larger exit area.

 

 Deems Davis # 406

 'Its all done....Its just not put together'

 http://deemsrv10.com/

 > 

 

 


	


  [quote][b]

indigoonlatigo(at)msn.com
Guest

Posted: Tue Mar 04, 2008 1:38 pm Post subject: Lower Cowl Mounts

Thanks for the info

  

 John G.

  

 DO NOt Archive



 	  Quote: 	
		   Date: Tue, 4 Mar 2008 12:33:54 -0700

 From: deemsdavis(at)cox.net

 To: rv10-list(at)matronics.com

 Subject: Re: Lower Cowl Mounts

 

 --> RV10-List message posted by: Deems Davis <deemsdavis(at)cox.net>

 

 My cowl is NOT vertical induction, it was originally made for the BPE 

 forward facing fuel servo and Cold Air sump. The oblong induction ring 

 is the characteristic 'signature' for that cowl. When I was ready to 

 install a filtered air system, there were none available that could be 

 easily adapted to that Oval induction ring. I spoke with and followed 

 another -10 BPE cold air builder as he customized a filtered air system 

 using a K&N filter, Will, had offered to work with me in designing and 

 building a filtered air intake for the BPE set up, (that he would 

 subsequently offer to other builders) if I could provide him a 'model' 

 (made from expandable foam) of the bottom of the cowl and the servo/cold 

 air sump. I was ready to follow one of these approaches, when I happened 

 on the information regarding the Rod Bowers design. I was Very impressed 

 with the design and the '3 in one' capabilities of 

 RAM/filtered/Alternate air sources, and after speaking w/ Rod, I 

 concluded that while hacking up my cowl in order to replace the oval 

 induction ring w/ the circular ring sounded alarming, it really turned 

 out to be less work for me than either of the other 2 approaches, plus I 

 picked up the benefit of the RAM air mp increase. I'm really happy with 

 the results so far, although I'm obviously not flying and haven't 

 validated any performance.

 

 Deems Davis # 406

 'Its all done....Its just not put together'

 http://deemsrv10.com/

 

 IIRC the vertical induction cowl that is flying on an RV-10 is in 

 Canada, there were some initial issues with heat and cooling, Will 

 designed a modification wihc inclluded a larger exit area (around the 

 exhaust stacks) and that appears to have solved that problem. my 

 understanding is that he subsequently modified his mold to include the 

 larger exit area.

 

 Deems Davis # 406

 'Its all done....Its just not put together'

 http://deemsrv10.com/

 > 

 

 


	


  [quote][b]

mritter509(at)msn.com
Guest

Posted: Tue Mar 04, 2008 2:49 pm Post subject: Lower Cowl Mounts

I used camlocks around the fuse and piano hinge along the sides (vertical).  They work great.  Some folks don't like the looks of camlocks but I'm happy with them.

  

 Mark

 RV-10/N410MR



<html><div></div></html>

   

 > Subject: Re: Lower Cowl Mounts

 	  Quote: 	
		   From: rv-10(at)wellenzohn.net

 Date: Tue, 4 Mar 2008 12:58:36 -0800

 To: rv10-list(at)matronics.com

 

 --> RV10-List message posted by: "Michael Wellenzohn" <rv-10(at)wellenzohn.net>

 

 Guys,

 

 did anyone use camlocks for the bottom cowling mounts?

 

 Michael

 

 --------

 RV-10 builder (engine, prop, finishing)

 #511

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=167708#167708

 

 

 

 

 

=====================

 

 

 


	


Connect and share in new ways with Windows Live. Get it now!  [quote][b]

jfrjr(at)roadrunner.com
Guest

Posted: Tue Mar 04, 2008 2:52 pm Post subject: Lower Cowl Mounts

Michael:  I used the camlocks thru out (firewall to cowling and top to 

bottom cowling).  Came as a kit (pricey) and fairly straight forward to 

install.  Takes me about 3 minutes by myself to get the top cowling off and 

on, and a little longer for the bottom since you have to do some nudging to 

get the various baffles in proper place.  The down side to the camlocks, in 

addition to the cost, is that they are not as cosmetically pleasing as the 

clean look you get with the hinges.   Jay Rowe

  ---

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wcurtis(at)nerv10.com
Guest

Posted: Tue Mar 04, 2008 4:06 pm Post subject: Lower Cowl Mounts

 	  Quote: 	
		   Guys,

 did anyone use camlocks for the bottom cowling mounts?

 Michael


	


I am.  Two per side on a 0.63 base. Four of each of the below:



244-16    Floting Receptacle  2.89

4002-4   Camloc Stud	    2.45

4002-O  Camloc Grommet	    1.53

R4G       Snap Rings	    0.20



I used these on the horizontal sides of my Cardinal to replace the SouthCo fasteners and I like them a lot.  Not enough however to use them in place of the hinges on the 10 except on the cowl bottom.  



The above prices are from Spruce, however if you go to OSH or Sun-N-Fun you can get them at the Aeromart for less.  If you want to pay even more you can get the adjustable receptacle version but since the -4 stud will fit the thickness range of our cowling, I don't see any reason to use them.



William

http://wcurtis.nerv10.com/

"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."

-- Dr. Suess

LarryRosen

Joined: 16 Jan 2006
Posts: 415
Location: Medford, NJ

Posted: Tue Mar 04, 2008 5:52 pm Post subject: Lower Cowl Mounts

Vic used camlocs all the way around.  You can see photos here:

<http://lrosen.nerv10.com/Construct/SunNFun_2006/Vic%20RV10/CamLocs/index.html>

Larry Rosen

William Curtis wrote:

 	  Quote: 	

> Guys,

> did anyone use camlocks for the bottom cowling mounts?

> Michael

>     

 I am.  Two per side on a 0.63 base. Four of each of the below:

 244-16    Floting Receptacle  2.89

 4002-4   Camloc Stud	    2.45

 4002-O  Camloc Grommet	    1.53

 R4G       Snap Rings	    0.20

 I used these on the horizontal sides of my Cardinal to replace the SouthCo fasteners and I like them a lot.  Not enough however to use them in place of the hinges on the 10 except on the cowl bottom.  

 The above prices are from Spruce, however if you go to OSH or Sun-N-Fun you can get them at the Aeromart for less.  If you want to pay even more you can get the adjustable receptacle version but since the -4 stud will fit the thickness range of our cowling, I don't see any reason to use them.

 William

 http://wcurtis.nerv10.com/

 "Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."

 -- Dr. Suess

_________________
Larry Rosen
#40356
N205EN (reserved)
<http>

wcurtis(at)nerv10.com
Guest

Posted: Tue Mar 04, 2008 6:19 pm Post subject: Lower Cowl Mounts

Larry,



Those bottom ones don't look like Camlocs, they look like screws with Tinnerman washers.  I know Vic sold the plane but is he still on the list?



William

http://wcurtis.nerv10.com/

"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."

-- Dr. Suess 



------

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