 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Elwood140(at)aol.com
Guest
|
 Posted: Mon Aug 10, 2009 4:37 pm Post subject: 701 older style cowling |
 |
|
Hi all,
I'm working on the cowling install and thought I was about done until I looked at the front view. With the prop and spinner installed, the cowling looks off-center. I also find that the right side of the cowling is about 30 mm shorter than the left. I assume that this takes into account the offset of the mount. Any comments from fellow listers?
Regards,
Larry Wood
(N701LW almost done)
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
 |
dougsnash
Joined: 14 Apr 2008
Posts: 281
|
| Posted: Mon Aug 10, 2009 7:17 pm Post subject: 701 older style cowling |
|
|
Larry, the cowl should be relatively symmetrical. The engine offset is achieved by twisting the back of the engine not the front. The prop hub should be approximately centred in the cowl opening.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
Rigging wings
Do Not Archive
--- On Mon, 8/10/09, Elwood140(at)aol.com <Elwood140(at)aol.com> wrote:
| Quote: | From: Elwood140(at)aol.com <Elwood140(at)aol.com>
Subject: 701 older style cowling
To: zenith701801-list(at)matronics.com
Received: Monday, August 10, 2009, 7:33 PM
Hi all,
I'm working on the cowling install and thought I
was about done until I
looked at the front view. With the prop and spinner
installed, the cowling
looks off-center. I also find that the right side of
the cowling is about
30 mm shorter than the left. I assume that this takes
into account the
offset of the mount. Any comments from fellow
listers?
Regards,
Larry Wood
(N701LW almost done)
|
__________________________________________________________________
Looking for the perfect gift? Give the gift of Flickr!
http://www.flickr.com/gift/
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
zeus45601(at)yahoo.com
Guest
|
| Posted: Tue Aug 11, 2009 4:21 am Post subject: 701 older style cowling |
|
|
Sorry Larry; I don't mean to walk over your initial question as I hope someone can help you, but I have a similar question about cowlings. I think I'm going to need to create a whole new cowling from scratch as I would like to use a radial engine which needs a special rounded, vented cowling. I saw some write up on EAA or Kitplanes showing one man's procedure for creating a custom cowl, which pretty much built up layers of foam around his already mounted engine, and I think he filled in the holes and generally created the shape using plaster. He sculpted and sanded it down to create the shape he wanted and then used composites (carbon-fiber and resin) to create the composite cowling overlaying which also needed to be shaped and sanded before completion. Trouble is, I can't remember where I saw that article now (should have bookmarked it). I've been thinking more and more about this process as I would like to install a Rotec R3600 radial engine on my plane which has it's propeller shaft squarely centered. The engine will need to address special cooling vents so air can move around and past the cylinders and out the back, but keep a degree if streamlining around the engine. The conventional Lycoming, Continental or even car engines have shafts that sit up higher over the mass of the engine and already come with cowls designed for it's shape. Does anyone remember running across such an article or any "how-to" procedure for making composite cowls? I think this same technique could be adapted in the making of cargo pods as well as long as the internal framework can structurally handle the internal load you plan to carry in it or even Larry's cowling could be modified and then patched up using composites if there are no better options.
Thanks all,
Jay
From: "Elwood140(at)aol.com" <Elwood140(at)aol.com>
To: zenith701801-list(at)matronics.com
Sent: Monday, August 10, 2009 8:33:23 PM
Subject: 701 older style cowling
Hi all,
I'm working on the cowling install and thought I was about done until I looked at the front view. With the prop and spinner installed, the cowling looks off-center. I also find that the right side of the cowling is about 30 mm shorter than the left. I assume that this takes into account the offset of the mount. Any comments from fellow listers?
Regards,
Larry Wood
(N701LW almost done)
| Quote: | | http://www.matronics.com/Navigator?Zenith701801-List ://www.matronics.com/contribution" target=_blank rel=nofollow>http://ww====================== |
[quote][b]
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
dougsnash
Joined: 14 Apr 2008
Posts: 281
|
| Posted: Tue Aug 11, 2009 6:12 am Post subject: 701 older style cowling |
|
|
Jay, I seem to remember a link on the CH-701.com site that went to a builder's page where he had built up a cowl from scratch. I believe he was one of the early VW/701 builders.
Sorry I can't be a much more help.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
Rigging wings
Do Not Archive
--- On Tue, 8/11/09, Jay Parker <zeus45601(at)yahoo.com> wrote:
| Quote: | From: Jay Parker <zeus45601(at)yahoo.com>
Subject: Re: 701 older style cowling
To: zenith701801-list(at)matronics.com
Received: Tuesday, August 11, 2009, 7:15 AM
Sorry Larry; I don't
mean to walk over your initial question as I hope someone
can help you, but I have a similar question about cowlings.
I think I'm going to need to create a whole new
cowling from scratch as I would like to use a radial engine
which needs a special rounded, vented cowling. I saw
some write up on EAA or Kitplanes showing one man's
procedure for creating a custom cowl, which pretty much
built up layers of foam around his already mounted engine,
and I think he filled in the holes and generally
created the shape using plaster. He sculpted and
sanded it down to create the shape he wanted and then
used composites (carbon-fiber and resin) to create the
composite cowling overlaying which also needed to be shaped
and sanded before completion. Trouble
is, I can't remember where I saw that article now
(should have bookmarked it). I've been thinking
more and more about this process as I would like to install
a Rotec R3600 radial engine on my plane which has it's
propeller shaft squarely centered. The engine will need
to address special cooling vents so air can move around
and past the cylinders and out the back, but keep a
degree if streamlining around the engine. The
conventional Lycoming, Continental or even car engines
have shafts that sit up higher over the mass of the
engine and already come with cowls designed for it's
shape. Does anyone remember running across such an
article or any "how-to" procedure for making
composite cowls? I think this same technique could
be adapted in the making of cargo pods as
well as long as the internal
framework can structurally handle the
internal load you plan to carry in it or
even Larry's
cowling could be modified and then patched up
using composites if there are no better options.
Thanks all,
Jay
|
__________________________________________________________________
Looking for the perfect gift? Give the gift of Flickr!
http://www.flickr.com/gift/
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
ruruny(at)aol.com
Guest
|
| Posted: Tue Aug 11, 2009 6:14 am Post subject: 701 older style cowling |
|
|
Larry,
Mine is offset slightly right with the offset of the engine. If you try to install it perfectly straight
the prop flange will be left and the right cowl pin comes very close to the prop. My cowl was not shorter on the right side.
It took alot of trimming and adjusting and lots of tape to get it on perfect. When its complete it does not appear to be
offset. Follow the series of pics from this link
http://www.701builder.com/Cowling1.htm
a few reveal the offset, especially looking from the top, but looking at the cutouts
on the bottom of the cowl for the oil cooler and muffler. I need a good pic from the top on a ladder to see the slight offset.
I'm finished with my project and completed the weight and balance only to find my landing gear loose, with the wheels leaning forward.
I added thicker rubber to correct. Also found after completing cabling and setting elevator and flaperon stops that while turning extreme left and up that the elevator pushrod would bind to the right of the tunnel. I made a new pushrod using a rod end at the belcrank and it clears the tunnel.
Brian
[url=http://www.701builder.com/Cowling1.htm][/url]
[quote][b]
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
carlossa52(at)gmail.com
Guest
|
| Posted: Tue Aug 11, 2009 6:47 am Post subject: 701 older style cowling |
|
|
Jay, I knew of one such description, plus I did some searches.
Results below, hope this helps...
Michel Therrien, from the Montreal area:
http://mthobby.pcperfect.com/ch601/chcowling.htm
This from the CH601.ORG site (Mike Sinclair), unfortunately the pictures are all missing (perhaps Mark Townsend can have it fixed):
http://ch601.org/resources/cowling/cowl.htm
Mark Langford's KR2 web site:
http://home.hiwaay.net/~langford/cowling.html
EAA chapter 1401 has a couple of article in their newsletters. Look for Feb 2007 and March 2007:
http://www.gatewayeaa.com/PDF%20version/I have noticed a trend among builders that document their work in web sites: while many keep their web sites available almost forever, there are some that are shutting down their web sites some time after they start flying, for all sorts of reasons.
If there are sites you deem useful, you might want to extract the information of interest before they disappear.
Good luck
Carlos
CH601-HD
2009/8/11 Jay Parker <zeus45601(at)yahoo.com (zeus45601(at)yahoo.com)>
[quote] Does anyone remember running across such an article or any "how-to" procedure for making composite cowls? I think this same technique could be adapted in the making of cargo pods as well as long as the internal framework can structurally handle the internal load you plan to carry in it or even Larry's cowling could be modified and then patched up using composites if there are no better options.
Thanks all,
Jay
[b]
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
zeus45601(at)yahoo.com
Guest
|
| Posted: Tue Aug 11, 2009 7:51 am Post subject: 701 older style cowling |
|
|
Yes! I think you're right. Thanks. I'll go check my bookmarks to see if I can find it now.
Jay
From: MacDonald Doug <dougsnash(at)yahoo.com>
To: zenith701801-list(at)matronics.com
Sent: Tuesday, August 11, 2009 9:49:38 AM
Subject: Re: 701 older style cowling
--> Zenith701801-List message posted by: MacDonald Doug <dougsnash(at)yahoo.com (dougsnash(at)yahoo.com)>
Jay, I seem to remember a link on the CH-701.com site that went to a builder's page where he had built up a cowl from scratch. I believe he was one of the early VW/701 builders.
Sorry I can't be a much more help.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
Rigging wings
Do Not Archive
--- On Tue, 8/11/09, Jay Parker <zeus45601(at)yahoo.com (zeus45601(at)yahoo.com)> wrote:
| Quote: | From: Jay Parker <zeus45601(at)yahoo.com (zeus45601(at)yahoo.com)>
Subject: Re: Zenith701801-List: 701 older style cowling
To: zenith701801-list(at)matronics.com (zenith701801-list(at)matronics.com)
Received: Tuesday, August 11, 2009, 7:15 AM
Sorry Larry; I don't
mean to walk over your initial question as I hope someone
can help you, but I have a similar question about cowlings.
I think I'm going to need to create a whole new
cowling from scratch as I would like to use a radial engine
which needs a special rounded, vented cowling. I saw
some write up on EAA or Kitplanes showing one man's
procedure for creating a custom cowl, which pretty much
built up layers of foam around his already mounted engine,
and I think he filled in the holes and generally
created the shape using plaster. He sculpted and
sanded it down to create the shape he wanted and then
used composites (carbon-fiber and resin) to create the
composite cowling overlaying which also needed to be shaped
and sanded before completion. Trouble
is, I can't remember where I saw that article now
(should have bookmarked it). I've been thinking
more and more about this process as I would like to install
a Rotec R3600 radial engine on my plane which has it's
propeller shaft squarely centered. The engine will need
to address special cooling vents so air can move around
and past the cylinders and out the back, but keep a
degree if streamlining around the engine. The
conventional Lycoming, Continental or even car engines
have shafts that sit up higher over the mass of the
engine and already come with cowls designed for it's
shape. Does anyone remember running across such an
article or any "how-to" procedure for making
composite cowls? I think this same technique could
be adapted in the making of cargo pods as
well as long as the internal
framework can structurally handle the
internal load you plan to carry in it or
even Larry's
cowling could be modified and then patched up
using composites if there are no better options.
Thanks all,
Jay
|
__________________________________________________________________
Looking for the perfect gift? Give the gift of Flickr!
http://www.flicknbsp; =======================
[quote][b]
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
zeus45601(at)yahoo.com
Guest
|
| Posted: Tue Aug 11, 2009 10:20 am Post subject: 701 older style cowling |
|
|
Thanks Carlos. You found 3 sites that I hadn't seen before at all. I really appreciate your help.
Jay
From: Carlos Sa <carlossa52(at)gmail.com>
To: zenith701801-list(at)matronics.com
Sent: Tuesday, August 11, 2009 10:36:39 AM
Subject: Re: 701 older style cowling
Jay, I knew of one such description, plus I did some searches.
Results below, hope this helps...
Michel Therrien, from the Montreal area:
http://mthobby.pcperfect.com/ch601/chcowling.htm
This from the CH601.ORG site (Mike Sinclair), unfortunately the pictures are all missing (perhaps Mark Townsend can have it fixed):
http://ch601.org/resources/cowling/cowl.htm
Mark Langford's KR2 web site:
http://home.hiwaay.net/~langford/cowling.html
EAA chapter 1401 has a couple of article in their newsletters. Look for Feb 2007 and March 2007:
http://www.gatewayeaa.com/PDF%20version/I have noticed a trend among builders that document their work in web sites: while many keep their web sites available almost forever, there are some that are shutting down their web sites some time after they start flying, for all sorts of reasons.
If there are sites you deem useful, you might want to extract the information of interest before they disappear.
Good luck
Carlos
CH601-HD
2009/8/11 Jay Parker <zeus45601(at)yahoo.com (zeus45601(at)yahoo.com)>
| Quote: | Does anyone remember running across such an article or any "how-to" procedure for making composite cowls? I think this same technique could be adapted in the making of cargo pods as well as long as the internal framework can structurally handle the internal load you plan to carry in it or even Larry's cowling could be modified and then patched up using composites if there are no better options.
Thanks all,
Jay
[b] |
[quote][b]
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
