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planesmith(at)hotmail.com
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 Posted: Fri Jul 25, 2008 6:48 am Post subject: Sunvisor installation (was Cabin Roof) |
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Dave C
I have been wondering about drilling the holes in the rain channel for the Rosen visors and have held off because of this concern. Did you come up with a different approach for mounting them?
Vern Smith (#324 finishing)
From: Dave(at)aircraftersllc.com
To: rv10-list(at)matronics.com
Subject: RV10-List: Cabin Roof
Date: Thu C 24 Jul 2008 17:29:28 -0700
.ExternalClass .EC_shape {;} .ExternalClass p.EC_MsoNormal C .ExternalClass li.EC_MsoNormal C .ExternalClass div.EC_MsoNormal {margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} .ExternalClass a:link C .ExternalClass span.EC_MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited C .ExternalClass span.EC_MsoHyperlinkFollowed {color:blue;text-decoration:underline;} .ExternalClass pre {margin-bottom:.0001pt;font-size:10.0pt;font-family:'Courier New';} .ExternalClass span.EC_EmailStyle18 {font-family:Arial;color:navy;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass div.EC_Section1 {page:Section1;} My sense is that the top is very strong.
I had a discussion with the factory C the upshot of which was that Engineering was concerned about (prohibited) drilling the 2 #10 holes in the rain channel for the visor mounts. Rather than thinking "jeez C it won't even take a couple little holes" C the proper thought should be that some parts are critical and should not be casually modified. Those channels were designed from the beginning to be strong enough to protect the occupants.
I know the upper roof section is VERY thick for a fiberglass piece. Again C that is for a reason (added strength) C not because it was easy or cheap. The core is pretty dense too C adding to the strength.
The cage formed by the door frames and roof looks pretty strong. Everything has a limit C but the roof doesn't seem to me at all like a weak point.
Dave Saylor
AirCrafters LLC
140 Aviation Way
Watsonville C CA
831-722-9141
831-750-0284 CL
www.AirCraftersLLC.com
Use video conversation to talk face-to-face with Windows Live Messenger. Get started. [quote][b]
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Dave(at)AirCraftersLLC.co
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| Posted: Fri Jul 25, 2008 9:04 am Post subject: Sunvisor installation (was Cabin Roof) |
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Vern,
Mine were in and working great before I heard the news. I guess my point is that a lot of thinking went into the design of the structure, with the intention of having it remain intact in a crash. I do believe that drilling the holes in the structure makes is weaker, but I HOPE not too much. That's all I can go on. I don't have any numbers.
If you were really concerned about it, you could lay up some additional BID inside or outside the channel, as long as it didn't interfere with the fit of the doors. Again, no numbers, but 4 layers of 7781 3" above and below the holes should do it. This assumes there isn't some really elegant engineering involved that takes compression rates and failure modes into account. An extra stiff area would change all that. I'm just talking about a big doubler to beef up the weakened part.
Now that I'm thinking about it, that would give you an oppurtunity to bond in the screws and create a flat pad for the base. You could do it all in one step. Mine ended up with a gap fore and aft that I had to fill after the fact.
Dave Saylor
AirCrafters LLC
140 Aviation Way
Watsonville, CA
831-722-9141
831-750-0284 CL
www.AirCraftersLLC.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Vernon Smith
Sent: Friday, July 25, 2008 7:45 AM
To: rv10-list(at)matronics.com
Subject: RE: Sunvisor installation (was Cabin Roof)
Dave,
I have been wondering about drilling the holes in the rain channel for the Rosen visors and have held off because of this concern. Did you come up with a different approach for mounting them?
Vern Smith (#324 finishing)
From: Dave(at)aircraftersllc.com
To: rv10-list(at)matronics.com
Subject: Cabin Roof
Date: Thu, 24 Jul 2008 17:29:28 -0700
.ExternalClass .EC_shape {;} .ExternalClass p.EC_MsoNormal, .ExternalClass li.EC_MsoNormal, .ExternalClass div.EC_MsoNormal {margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} .ExternalClass a:link, .ExternalClass span.EC_MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited, .ExternalClass span.EC_MsoHyperlinkFollowed {color:blue;text-decoration:underline;} .ExternalClass pre {margin-bottom:.0001pt;font-size:10.0pt;font-family:'Courier New';} .ExternalClass span.EC_EmailStyle18 {font-family:Arial;color:navy;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass div.EC_Section1 {page:Section1;} My sense is that the top is very strong.
I had a discussion with the factory, the upshot of which was that Engineering was concerned about (prohibited) drilling the 2 #10 holes in the rain channel for the visor mounts. Rather than thinking "jeez, it won't even take a couple little holes", the proper thought should be that some parts are critical and should not be casually modified. Those channels were designed from the beginning to be strong enough to protect the occupants.
I know the upper roof section is VERY thick for a fiberglass piece. Again, that is for a reason (added strength), not because it was easy or cheap. The core is pretty dense too, adding to the strength.
The cage formed by the door frames and roof looks pretty strong. Everything has a limit, but the roof doesn't seem to me at all like a weak point.
Dave Saylor
AirCrafters LLC
140 Aviation Way
Watsonville, CA
831-722-9141
831-750-0284 CL
www.AirCraftersLLC.com
Use video conversation to talk face-to-face with Windows Live Messenger. Get started. [quote]
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
[b]
| | - The Matronics RV10-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:
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planesmith(at)hotmail.com
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| Posted: Fri Jul 25, 2008 9:49 am Post subject: Sunvisor installation (was Cabin Roof) |
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Hmmm C good information to chew on. Maybe I'll make a small mounting bracket/pad and epoxy it to the inside of the window post. This would eliminate the need for the holes in the rain channel.
Of course there shouldn't be a problem if I keep the plane shiny side up and the dirt side down;)
Thanks C
Vern
From: Dave(at)AirCraftersLLC.com
To: rv10-list(at)matronics.com
Subject: RE: Sunvisor installation (was Cabin Roof)
Date: Fri C 25 Jul 2008 10:00:21 -0700
.ExternalClass .EC_hmmessage P {padding:0px;} .ExternalClass body.EC_hmmessage {font-size:10pt;font-family:Tahoma;} Vern C
Mine were in and working great before I heard the news. I guess my point is that a lot of thinking went into the design of the structure C with the intention of having it remain intact in a crash. I do believe that drilling the holes in the structure makes is weaker C but I HOPE not too much. That's all I can go on. I don't have any numbers.
If you were really concerned about it C you could lay up some additional BID inside or outside the channel C as long as it didn't interfere with the fit of the doors. Again C no numbers C but 4 layers of 7781 3" above and below the holes should do it. This assumes there isn't some really elegant engineering involved that takes compression rates and failure modes into account. An extra stiff area would change all that. I'm just talking about a big doubler to beef up the weakened part.
Now that I'm thinking about it C that would give you an oppurtunity to bond in the screws and create a flat pad for the base. You could do it all in one step. Mine ended up with a gap fore and aft that I had to fill after the fact.
Dave Saylor
AirCrafters LLC
140 Aviation Way
Watsonville C CA
831-722-9141
831-750-0284 CL
www.AirCraftersLLC.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Vernon Smith
Sent: Friday C July 25 C 2008 7:45 AM
To: rv10-list(at)matronics.com
Subject: RE: Sunvisor installation (was Cabin Roof)
Dave C
I have been wondering about drilling the holes in the rain channel for the Rosen visors and have held off because of this concern. Did you come up with a different approach for mounting them?
Vern Smith (#324 finishing)
From: Dave(at)aircraftersllc.com
To: rv10-list(at)matronics.com
Subject: Cabin Roof
Date: Thu C 24 Jul 2008 17:29:28 -0700
.ExternalClass .EC_shape {;} .ExternalClass p.EC_MsoNormal C .ExternalClass li.EC_MsoNormal C .ExternalClass div.EC_MsoNormal {margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} .ExternalClass a:link C .ExternalClass span.EC_MsoHyperlink {color:blue;text-decoration:underline;} .ExternalClass a:visited C .ExternalClass span.EC_MsoHyperlinkFollowed {color:blue;text-decoration:underline;} .ExternalClass pre {margin-bottom:.0001pt;font-size:10.0pt;font-family:'Courier New';} .ExternalClass span.EC_EmailStyle18 {font-family:Arial;color:navy;} (at)page Section1 {size:8.5in 11.0in;} .ExternalClass div.EC_Section1 {page:Section1;} My sense is that the top is very strong.
I had a discussion with the factory C the upshot of which was that Engineering was concerned about (prohibited) drilling the 2 #10 holes in the rain channel for the visor mounts. Rather than thinking "jeez C it won't even take a couple little holes" C the proper thought should be that some parts are critical and should not be casually modified. Those channels were designed from the beginning to be strong enough to protect the occupants.
I know the upper roof section is VERY thick for a fiberglass piece. Again C that is for a reason (added strength) C not because it was easy or cheap. The core is pretty dense too C adding to the strength.
The cage formed by the door frames and roof looks pretty strong. Everything has a limit C but the roof doesn't seem to me at all like a weak point.
Dave Saylor
AirCrafters LLC
140 Aviation Way
Watsonville C CA
831-722-9141
831-750-0284 CL
www.AirCraftersLLC.com
Use video conversation to talk face-to-face with Windows Live Messenger. Get started. | Quote: |
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
arget=_blank>http://www.matronics.com/Navigator?RV10-List
ttp://forums.matronics.com
=_blank>http://www.matronics.com/contribution
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Stay in touch when you're away with Windows Live Messenger. IM anytime you're online. [quote][b]
| | - The Matronics RV10-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?RV10-List |
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