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  #21  
Old 05-20-2019, 01:04 PM
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Roarks Roarks is offline
 
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Location: Phoenix
Posts: 72
Default HS-702 with the HS-00003 minimum edge distance.

So I wasn't sure if this is the minimum edge distance that everyone was talking about... sure enough it is. Thanks Vans for the clarification.






"The two holes directly above and below the notch are known to have short edge distance and accepted by the engineers, not a problem."

And if you look real close... you will see why I just spent $20 getting another HS-702.

I think what is going to take the most time is screwing up on a Saturday night, waiting to hear back from tech support on Monday, and ordering parts that take another 3 days.
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  #22  
Old 05-20-2019, 05:58 PM
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nzrv8 nzrv8 is offline
 
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Location: Australia and NZ
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Default

Good to see you approaching your build in the right way - Being cautious and talking to Van's when unsure.

It's a difficult intro to an RV build - working on the first real structural part, where one hole drilled through 3 or 4 layers can ruin your day. I have a few (4!) spare HS-702's, not to mention a box full of front spar reinforcements..

Something I found interesting - having built two complete HS's - On the non-SB HS front spar there aren't any areas where lower than normal edge distances are acceptable, yet on the SB version there are multiple areas where less than perfect edge distances are approved by Van's. Even on critical structures, less than perfect edge distances are sometimes acceptable with Van's approval, indeed sometimes unavoidable. But always check with Van's!

Good luck with the rest of the build - This front spar area is the initiation!

Hugh
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  #23  
Old 05-21-2019, 06:04 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
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Default Relief notch

The old plans had those relief notch pilot holes further toward the vertex. Wonder why Vans moved them?
Easier to file away material than replace it.
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Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
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  #24  
Old 05-21-2019, 07:25 PM
Girraf Girraf is offline
 
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Location: Southern Maryland
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Did you enlarge the wrong hole? Why arenít both the big holes for the relief notch not tangent to your vertical line there? Bottom one looks ok but the top on has me puzzled
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  #25  
Old 05-22-2019, 10:28 AM
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Roarks Roarks is offline
 
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Quote:
Originally Posted by Girraf View Post
Did you enlarge the wrong hole? Why aren’t both the big holes for the relief notch not tangent to your vertical line there? Bottom one looks ok but the top on has me puzzled

Sure did. New one showing up today.

Last edited by Roarks : 05-22-2019 at 10:16 PM.
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  #26  
Old 06-08-2019, 12:58 AM
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Roarks Roarks is offline
 
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So... I have been seized up past week doing day job work... but also having what one of my engineering buddies affectionately calls a "helmet fire" when it comes to dimples.

The large plate on the right is representative of every dimple I have ever made... just kinda looks not great. can kind of see up under the rivet head a bit too.

I Just watched cleavelands video https://www.youtube.com/watch?v=Qo9QCMaNSoA

So basically I'm weak and need to put a handle extension on my DRDT-2.

Plate on the left... Holy shiitake mushrooms batman! I finally did it.

-Also my back rivet plate and back rivet set had disappeared... Finally found it. So... I'm clear to proceed!

EDIT: My single piston CP214 could not dimple as good as the DRDT-2

Last edited by Roarks : 06-08-2019 at 01:10 AM.
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  #27  
Old 06-09-2019, 06:49 PM
Girraf Girraf is offline
 
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I was under dimpling when I started too. I didn't get the help I needed until another builder pointed out my error, but fortunately for me I hadn't started riveted more than a couple skin rivets at the time. He demonstrated that a fully dimpled hole will leave witness rings like a bullseye around the dimple which is another indicator to observe.

It should also be noted that Exp. Aero (maker of the DRDT-2) says the it is impossible to over dimple with that tool. I personally don't think its possible to over dimple with any common airplane building tool but what do I know...I'm just an amateur.
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  #28  
Old 08-19-2019, 01:21 AM
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Roarks Roarks is offline
 
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So I haven't done much since Phoenix went 100°F+.

BUT! This was my RV8 mini project for this weekend. AC in the garage.

Last edited by Roarks : 08-19-2019 at 01:24 AM.
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