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  #131  
Old 05-30-2018, 04:25 PM
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kentlik kentlik is offline
 
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That is right school will be out for summer!
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  #132  
Old 06-04-2018, 12:18 AM
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Let the priming session begin!!! I mean... let the first one start... lol

20180603_181832 by Jereme Carne, on Flickr

20180603_181828 by Jereme Carne, on Flickr
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  #133  
Old 06-11-2018, 07:33 PM
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Priming and riveting of the rear bulkheads is all done. Now on to the longerons!

20180606_163211 by Jereme Carne, on Flickr

20180610_205029 by Jereme Carne, on Flickr

20180610_210138 by Jereme Carne, on Flickr
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  #134  
Old 06-11-2018, 08:51 PM
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Quote:
Originally Posted by jcarne View Post
Priming and riveting of the rear bulkheads is all done. Now on to the longerons!

20180606_163211 by Jereme Carne, on Flickr

20180610_205029 by Jereme Carne, on Flickr

20180610_210138 by Jereme Carne, on Flickr
I've got a set of the Bullerent Longeron bending dies if you want to borrow them... I'll ship them up to you and you can ship'em back when you're done.

It'll be a while before I am needing them with the way I am progressing on the wings.. heh.
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  #135  
Old 06-11-2018, 10:01 PM
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Quote:
Originally Posted by CubedRoot View Post
I've got a set of the Bullerent Longeron bending dies if you want to borrow them... I'll ship them up to you and you can ship'em back when you're done.

It'll be a while before I am needing them with the way I am progressing on the wings.. heh.
Thanks for the offer Lynn but another gent from Colorado is letting me borrow his. Bending will take place within the next few days! haha

Also, I just looked at your blog again, you are almost done with the crappy part of the wings! It's all a lot more fun after them ribs are dealt with!
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Last edited by jcarne : 06-11-2018 at 10:05 PM.
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  #136  
Old 06-12-2018, 06:28 PM
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All that priming looks good. If you are into that sort of thing...lol
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  #137  
Old 06-13-2018, 08:24 AM
RV7ForMe RV7ForMe is offline
 
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Nice progress! Looking perfect with the primer. I love the looks of green parts
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  #138  
Old 06-13-2018, 06:54 PM
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Quote:
Originally Posted by kentlik View Post
All that priming looks good. If you are into that sort of thing...lol
Haha I love the smell of Akzo in the morning...

Quote:
Originally Posted by RV7ForMe View Post
Nice progress! Looking perfect with the primer. I love the looks of green parts
Thanks for the compliments! I sure like the look of green as well, just not the maroon that comes before it
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  #139  
Old 06-16-2018, 03:24 AM
RV7ForMe RV7ForMe is offline
 
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I sure like the look of green as well, just not the maroon that comes before it
SO true !!!
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  #140  
Old 06-17-2018, 12:22 AM
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Well it was time to bend the longerons finally. I didn't find them that easy or difficult, just time consuming and tedious. The first shallow bend took me 3 hours and a few choice words, the next one was half of that!

First I put the shallow bends in the longerons, the picture below shows both longerons clamped together after the bend. The trickiest part of almost anything to do with the longerons is that when you bend it one way it usually bends in an undesirable way too (which must be corrected).

20180615_182052 by Jereme Carne, on Flickr

Next the aft canopy deck goes on and gets drilled to the longerons. The front of the top flange lines up with the 28.25" mark. You also use some scrap 0.032" to simulate the side skins as the canopy deck sits on top.

20180615_183554 by Jereme Carne, on Flickr

All drilled and matches up nicely. I would also add that before you drill the canopy deck that you debur the outside edge as it sits on top of the side skin and deburing after may ruin this fit to a very small degree.

20180616_175849 by Jereme Carne, on Flickr

Next was on to the downward bend. A little math will make life easy! I found it difficult to reliably measure the deflection as things move as you whack it. Therefore, with a little bit of math I found that 5.5 degrees of deflection over 28.25" will yield pretty dang close to the 2.75" the plans call for. After the bend I held it up to the forward side skins and it matches it almost exactly! Looks like I don't have to embarrass myself after all with my math, especially since I'm a math teacher. (ugh, after looking at the plans again it has this angle on it! haha they call for 5.6 degrees, live and learn)

20180616_205721 by Jereme Carne, on Flickr

Measurement on top where there is no bend.

20180616_205547 by Jereme Carne, on Flickr

Measurement of the forward bend deflection.

20180616_205557 by Jereme Carne, on Flickr

This is what I used to clamp the longerons into place, worked really well!

20180616_205746 by Jereme Carne, on Flickr

Next was onto the twist. First I measured where there is no twist.

20180616_210410 by Jereme Carne, on Flickr

After applying the twist you get your 17 degrees. You have to really get after it to make this twist!!! The aluminum really springs back a lot.

20180616_210444 by Jereme Carne, on Flickr
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Last edited by jcarne : 06-17-2018 at 12:33 AM.
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