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  #81  
Old 09-29-2016, 10:52 AM
Z-EDD's Avatar
Z-EDD Z-EDD is offline
 
Join Date: Oct 2013
Location: Harare, Zimbabwe
Posts: 231
Default Center section continued.

Drilling the bottom skins and countersinking the specified holes.

IMG_0756 by Ed Fleming, on Flickr

You can see how the countersink goes through the skin and into the Bulkhead. This is by design and is ok!

IMG_0757 by Ed Fleming, on Flickr

I fitted the floors and positioned them 1/32nd from the edge of the rib. Not the first time these black clecos have come in handy.

IMG_0758 by Ed Fleming, on Flickr

Here's the whole thing drilled and ready for disassembly. One part I did't get many pictures of, but you can just see here, is the F-623 corner ribs. The instructions and plans are quite vague on the positioning of this. I had trouble visualising how the skins meet in this area. Now that I have the rest of the fuselage assembled I can advise that it is important to position the forward outer flange (closest in this photo) flush with the F-776 skin. This will allow the F-770 side skins to meet the -776 with little or no gap. Mine won't quite be like that better instructions or a section on the plans would have helpedIMG_0760 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:20 AM. Reason: fix photo links
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  #82  
Old 09-29-2016, 11:08 AM
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Z-EDD Z-EDD is offline
 
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Location: Harare, Zimbabwe
Posts: 231
Default Crotch straps.

Before removing all of the seat ribs, I fitted the crotch strap sub-kit. This is a little tricky as the brackets are pre-punched but they must be positioned and clamped to the ribs and floors for drilling. I ended up using my angle drill attachment quite a bit.

Here is the initial positioning and marking. I used a piece of angle to represent the floor.
IMG_0747 by Ed Fleming, on Flickr

Here the right side is done and the left is in progress. I used a piece of balsa as a spacer. Multiple clamps were required!

IMG_0748 by Ed Fleming, on Flickr

The view form the top drilling the upper flanges.

IMG_0749 by Ed Fleming, on Flickr

I had just received my Crow harnesses. This shot shows how they mount a little lower than the stock harness. Also, they use an AN4 bolt, not AN5. The thickness is the same though, 1/8.
IMG_0752 by Ed Fleming, on Flickr
All done
IMG_0753 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:22 AM. Reason: Fix photo links
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  #83  
Old 09-29-2016, 11:21 AM
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Z-EDD Z-EDD is offline
 
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Location: Harare, Zimbabwe
Posts: 231
Default Centre section prep and Longerons

Here is the F-705 that I completely forgot to photograph while building. Note I did not prime above the spar, in preparation for interior painting. However I have now discovered that my Tempo Zinc Phosphate primer is quite a good undercoat, so I may prime and paint this before riveting.

IMG_0754 by Ed Fleming, on Flickr

Dimpling setup. I use a steel 8 oz Ball peen hammer for nice crisp dimples.

IMG_0755 by Ed Fleming, on Flickr

getting started on the longerons. I opted to shape the ends before trimming. If it had gone wrong I could just redo them!IMG_0777 by Ed Fleming, on Flickr
IMG_0778 by Ed Fleming, on Flickr
IMG_0779 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:25 AM. Reason: Fix photo links
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  #84  
Old 09-29-2016, 11:30 AM
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Z-EDD Z-EDD is offline
 
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Default Longeron bending

Measure twice, cut once applies!

IMG_0780 by Ed Fleming, on Flickr

First one getting there. I had bending dies, but they didn't work for me. I just couldn't find the right amount of torque on my vice, the difference between no result and over bent was minuscule. I reverted to the plans technique but struggled there too. I guess I must just lack the finesse necessary. If it is mathematically possible, I did more unbending than bending, on both sides! Anyway, after 3 frustrating days of on and off work and frustration, it was finally nearly over.IMG_0764 by Ed Fleming, on FlickrIMG_0769 by Ed Fleming, on FlickrIMG_0770 by Ed Fleming, on FlickrIMG_0771 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:28 AM. Reason: fix photo links
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  #85  
Old 09-29-2016, 11:36 AM
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Z-EDD Z-EDD is offline
 
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Default Finishing Longerons

Clamped for the downward bend.
IMG_0772 by Ed Fleming, on Flickr

Thats about right.

IMG_0773 by Ed Fleming, on Flickr

The final twist- probably the easiest part, all this stuff wants to do is twist anyway!

IMG_0774 by Ed Fleming, on Flickr

Slots for F-711C's. This still needs to be opened a bit.

IMG_0763 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:31 AM. Reason: fix photo links
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  #86  
Old 09-29-2016, 11:47 AM
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Z-EDD Z-EDD is offline
 
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Default Riveting the centre section.

IMG_3399 by Ed Fleming, on Flickr

Most of this beautiful riveting was done by my Wife. She seemed almost as keen as I was to get it done and assemble the fuse

IMG_0782 by Ed Fleming, on Flickr

IMG_0786 by Ed Fleming, on Flickr
I put the seat floors in place but left off the baggage floors, since it makes it easier to fit to the aft fuse. Once the parts were joined I put the baggage floors in place. Ready to join to the Aft fuse!
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:33 AM. Reason: fix photo links
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  #87  
Old 09-29-2016, 12:03 PM
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Z-EDD Z-EDD is offline
 
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Default Fuselage assembled!

This was an awesome RV building day! As soon as we finished riveting the centre section, I put the longerons in place, and arranged the sawhorses. Then we lifted the centre section into place. the clecos are tough to get in at first, but then it all starts to line up and comes together.IMG_0789 by Ed Fleming, on FlickrIMG_0790 by Ed Fleming, on FlickrIMG_0791 by Ed Fleming, on FlickrIMG_0792 by Ed Fleming, on FlickrIMG_0794 by Ed Fleming, on FlickrIMG_0795 by Ed Fleming, on Flickr
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RV-7- Flying as of 12/23/20
Harare, Zimbabwe

Last edited by Z-EDD : 10-30-2017 at 10:35 AM. Reason: fix photo links
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  #88  
Old 09-29-2016, 09:45 PM
arffguy arffguy is offline
 
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Location: Elk Grove, CA
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Default Thanks. Nice photos.

That's a great set of photos. Those are some views I don't see too often. I also appreciate the fact you have r/c models in there, especially that E-flite RV-9. But I also gotta say, you guys with pre-punched parts definitely have an advantage.
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RV-6A wings/fuselage
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RV-4 Plans only S/N 2938
Cessna 152
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  #89  
Old 09-30-2016, 04:06 AM
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Skykingbob Skykingbob is offline
 
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Default Nice!

Great looking photos Ed.....looks like you are going to have a great-7
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Build Site: http://www.mykitlog.com/skykingbob/

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  #90  
Old 09-30-2016, 05:54 AM
Neal Trombley Neal Trombley is offline
 
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Default

Build looks awesome
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