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  #1  
Old 02-18-2018, 05:47 PM
LettersFromFlyoverCountry's Avatar
LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Location: St. Paul, MN.
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Default RV-12iS forward lower fuse mating problem

I wonder if there are supposed to be two more slots on the forward end of the mid fuselage skin.

Here's why.

When you make the lower forward fuselage, there are two large -- for want of a better word -- ribs that rivet to the bottom skin and the firewall; these also hold a engine mount bracket/gusset.

You don't rivet the most aft hole on each, though, because those are common to the mid-fuselage skin too.



There are also two outboard stringers (again, for want of a better word, the RV-12 doesn't use part names, only part numbers) that do the same thing, but there are two slots in the skin to accommodate them. Not so for the inboard pieces.

The flanges on all four of these pieces are attach points to the a bulkhead.

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St. Paul, MN.
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Almost ready to start the RV-12iS finishing kit. 480 hours in.

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  #2  
Old 02-18-2018, 06:06 PM
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rolick22 rolick22 is offline
 
Join Date: Oct 2013
Location: Powell, OH
Posts: 106
Default Two more slots?

Quote:
Originally Posted by LettersFromFlyoverCountry View Post
I wonder if there are supposed to be two more slots on the forward end of the mid fuselage skin.

Here's why.

When you make the lower forward fuselage, there are two large -- for want of a better word -- ribs that rivet to the bottom skin and the firewall; these also hold a engine mount bracket/gusset.

You don't rivet the most aft hole on each, though, because those are common to the mid-fuselage skin too.



There are also two outboard stringers (again, for want of a better word, the RV-12 doesn't use part names, only part numbers) that do the same thing, but there are two slots in the skin to accommodate them. Not so for the inboard pieces.

The flanges on all four of these pieces are attach points to the a bulkhead.



Hope this will help but I might not be understand your issue. The ribs over lap the two skins.

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David Rohrlick
PPSEL A&P
RV-12 Finished (Empennage, Fuselage(1st gen), and Wing kit)
Empennage finished (need to add the panel cut out)
Wings finished (need to add the left landing light)
iS Finishing Kit In work
iS Fuselage Kit In work
1st GEN FUSELAGE SOLD
Serial#12-0864
N864DR Reserved

Last edited by rolick22 : 02-18-2018 at 07:26 PM.
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  #3  
Old 02-18-2018, 07:07 PM
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LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Default

I'll do some more beating on it.
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Bob Collins
St. Paul, MN.
Blog: Letters From Flyover Country
Almost ready to start the RV-12iS finishing kit. 480 hours in.

Builder log

Last edited by LettersFromFlyoverCountry : 02-18-2018 at 07:13 PM.
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  #4  
Old 02-18-2018, 07:43 PM
Jim T Jim T is offline
 
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Location: Independence, OR
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Quote:
Originally Posted by LettersFromFlyoverCountry View Post
I'll do some more beating on it.
What step are you working on Bob?
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  #5  
Old 02-18-2018, 08:38 PM
rolick22's Avatar
rolick22 rolick22 is offline
 
Join Date: Oct 2013
Location: Powell, OH
Posts: 106
Default

Quote:
Originally Posted by LettersFromFlyoverCountry View Post
I wonder if there are supposed to be two more slots on the forward end of the mid fuselage skin.

Here's why.

When you make the lower forward fuselage, there are two large -- for want of a better word -- ribs that rivet to the bottom skin and the firewall; these also hold a engine mount bracket/gusset.

You don't rivet the most aft hole on each, though, because those are common to the mid-fuselage skin too.



There are also two outboard stringers (again, for want of a better word, the RV-12 doesn't use part names, only part numbers) that do the same thing, but there are two slots in the skin to accommodate them. Not so for the inboard pieces.

The flanges on all four of these pieces are attach points to the a bulkhead.
Quote:
Originally Posted by Jim T View Post
What step are you working on Bob?
Make sure this rivet (IN RED) is not installed, will make it easier to slide in place. Noticed that its installed on your photos.

__________________
_____________________________________________
David Rohrlick
PPSEL A&P
RV-12 Finished (Empennage, Fuselage(1st gen), and Wing kit)
Empennage finished (need to add the panel cut out)
Wings finished (need to add the left landing light)
iS Finishing Kit In work
iS Fuselage Kit In work
1st GEN FUSELAGE SOLD
Serial#12-0864
N864DR Reserved

Last edited by rolick22 : 02-18-2018 at 08:53 PM.
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  #6  
Old 02-19-2018, 02:55 PM
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LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Location: St. Paul, MN.
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They tell you to leave the one hole open and that was fine.

I ended up flipping the thing over and working on it right side up on the workbench and with a little finagling, got everything to fit fine.

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Bob Collins
St. Paul, MN.
Blog: Letters From Flyover Country
Almost ready to start the RV-12iS finishing kit. 480 hours in.

Builder log
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