N195AK Construction Log

Photos and commentary from the construction of Murphy Moose #195SR by Mike Davis.
It is currently Thu Nov 21, 2024 9:23 am

All times are UTC - 9 hours [ DST ]




Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Wed Feb 02, 2005 11:07 pm 
Offline
Site Admin
User avatar

Joined: Fri Oct 15, 2004 6:27 pm
Posts: 112
Location: Fairbanks, Alaska
Today was a busy day... I finished drilling the skin on the right aileron, trimmed and drilled the spade skin, and then got to enjoy deburring all those holes! That's got to be my least favorite part of the entire process. I've included a couple of pics showing some of my various deburring tools... when those ribs taper down to almost nothing, you've got to have the right tool to get to the back side of the holes.

There's also a pic of the skin showing how some of the holes are dimpled around the center hinge opening. You've got to be really careful when it comes to this, as you can get yourself in a bind if you don't think ahead. The manual clearly points out repeatedly that such and such holes need to be dimpled for flush riveting... but never once does it mention dimpling the top row and top 3 holes of the center hinge cover. Even though these holes are in the same area as other holes that are dimpled. Bottom line... from the spar down the nose ribs, the top 3 holes in every rib get dimpled... this is done to avoid interference with the top wing skin or gap seal should you install one. If you don't also do the top row and 3 holes down for the center hinge cover, you now have domed rivets in an otherwise smooth area. And if you rivet the skin on first, then you can't get to the back side of the skin where you need to make the dimples.

Make sure you get all your dimpling done before you start riveting.


Attachments:
File comment: Here's the spade skin all fitted and drilled.
2005_0202_123520AA.JPG
2005_0202_123520AA.JPG [ 61.61 KiB | Viewed 36696 times ]
File comment: Looking from the outboard end.
2005_0202_123530AA.JPG
2005_0202_123530AA.JPG [ 51.79 KiB | Viewed 36696 times ]
File comment: Now how are you supposed to debur a hole in such a tight space?
2005_0202_135241AA.JPG
2005_0202_135241AA.JPG [ 55.26 KiB | Viewed 36695 times ]
File comment: The hooked shape allows you to get right in there.
2005_0202_135249AA.JPG
2005_0202_135249AA.JPG [ 35.21 KiB | Viewed 36695 times ]
File comment: Here's an assortment of my deburring tools.
2005_0202_141025AA.JPG
2005_0202_141025AA.JPG [ 29.95 KiB | Viewed 36691 times ]
File comment: Notice all the dimples around this hole... the manual only mentions some of them, you need to think ahead and make sure you get everything you need to.
2005_0202_151002AA.JPG
2005_0202_151002AA.JPG [ 32.58 KiB | Viewed 36691 times ]
File comment: Bottom's all riveted up.
2005_0202_175321AA.JPG
2005_0202_175321AA.JPG [ 48.48 KiB | Viewed 36692 times ]
File comment: And now the top's done too... just have to do the spade skin and this one's done.
2005_0202_183605AA.JPG
2005_0202_183605AA.JPG [ 59.77 KiB | Viewed 36693 times ]

_________________
Image
010010010010011101100100001000000111001001100001
011101000110100001100101011100100010000001100010
011001010010000001100110011011000111100101101001
011011100110011100100001
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 9 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


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 post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group