Guys,

Seems the most reasonable approach.

Thank you,

Scott

The four outboard rivets on the E-606 trim spar are called out as MK-319-BS. Looking for preparation information. I found but do not remember where that the drill size is # 34 which is right between a -3 and a -4. So, finally, the question. What do I use to dimple? I have a 1/8" 120 degree dimple di...

Don, I think I may have had more than required pressure thus stretching the flange. I just got of the phone with Van's they said that this was not uncommon. They said that I could flute if I wanted to but that it was probably more effort than it was worth. They suggested that if I cleckoed the stabi...

Spike, If I use finger pressure I can push the spars down flat. Thinking that I might just use them as is. I am worried that if I flute these after match drilling everything that the spacing may change and the skin holes will no longer line up. Might try just clecoing everything together to see how ...

I just finished dimpling the skin flanges on the Front and Rear Spars (HS-702 and HS-603). I was somewhat surprised at the amount of bowing this operation created. Dimpling the flanges stretched the skin attach flanges to the point that the HS-603 bows 3/3" at mid span. I am assuming that this is no...

I just finished dimpling the skin flanges on the Front and Rear Spars (HS-702 and HS-603). I was somewhat surprised at the amount of bowing this operation created. Dimpling the flanges stretched the skin attach flanges to the point that the HS-603 bows 3/3" at mid span. I am assuming that this is no...

Bruce,

Thank you for the information

Scott

Bruce,

Thanks for the advice.

I have been experimenting as advised, after finding techniques that work things are speeding up. I must say though that the discovery is half the fun.


Where would I find the bits you show in the photos?

First thank you all for replying and I apologize for my fuzzy language. I am talking about deburring holes that have been transfer or match drilled #40 for 426AD3 flush rivets. I am using a deburring bit, both a 3 flute and a 4 flute, and am talking about the skin flanges of the HS-404, -405, -706, ...

Another couple new guy type questions. First I have an Avery swivel handle three flute deburr tool and I also have a 4 flute deburr tool. I have tried them both by hand or in a slow drill motor. Either one is capable of creating a little chatter. In fact when I look at the holes with a 4 X loop they...

I am grateful for the feedback. Just trying to make sure I am not missing something.

Thank you,

Scott

Assembling the HS I noticed that the fwd flange standoff of the forward end of the Inner Aft Rib (HS-405) creates a situation where the ED of the skin flange on same rib is only 1.5 at best. The 405 rib gets location from the Forward Spar HS-702. Checking the drawings, both the View B-B and the Plan...

Thanks guys for input.

Scott

I have just started the Horizontal Stabilizer. I have a question regarding trimming of the HS-702 Forward Spar flanges. If I trim the flanges from the relief notch inboard the remaining web will be narrower because of the flange radius. Do most builders unbend the flange inboard of the notch, unbend...