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  #1  
Old 12-24-2017, 11:49 AM
Stockmanreef Stockmanreef is offline
 
Join Date: Nov 2012
Location: Midland, mi
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Default Section 38-07 and -08 question

I keep rereading the plans to see if I missed something and I can't find it. On 38-07 it clearly states to dimple the canopy skin.

Then the ominous statement on 38-08: Follow these instructions exactly OR ELSE it will be your impending doom.

Then the first step is to flute the flanges of 1402 and 1403 so that the holes line up with the skin and that there is no gap between the skin and the parts.

Well there will obviously be a gap, the skins are dimpled while there is no step to dimple the underlying 1402 and 1403 pieces.

So what does follow exactly exactly mean? So what is the process? I would think that one would flute prior to dimpling to make sure the holes line up. Then dimple both the skins and the 1402 and 1403.

What did others do?

It is always possible that I missed the statement to dimple the 1402 and 1403.

thanks
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  #2  
Old 12-24-2017, 01:25 PM
Jake14 Jake14 is offline
 
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I seem to remember that there were cases where dimpling was obviously required but not called out in the plans. I think I dimpled first and then iterated the fluting to get the skins to lay flat on the frames.
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  #3  
Old 12-24-2017, 01:37 PM
control control is offline
 
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I just do not remember and I cannot find the answer in my blog or in the manual.

I probably did like Jake and just dimpled the 1402 & 1403... I remember another scare in that part of chapter 38, I could not find were one countersinks parts of 1408..
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  #4  
Old 12-24-2017, 02:18 PM
Stockmanreef Stockmanreef is offline
 
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that might be on 38-10.

Step 1: dimple the flanges of C-01417.

Step 5: Cleco C-01417 in place and check for twist.

Step 6: cleco the C-01442A back in place.

So now one has dimpled holes in 1417, but no machine countersinking of C-01408. and 1442A is clecoed back in place.

How is this supposed to work? How are the holes supposed to line up with one part dimpled and the other not machine counter sunk?

C-01408 is not counter sunk until 38-16 Step 10.

So isn't this when you would want to dimple C-01417.

Again if it weren't for the OR Else statement, I would probably not dimple 1417 until machine counter sinking of 1408.
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  #5  
Old 12-24-2017, 06:01 PM
Don E Don E is offline
 
Join Date: Aug 2016
Location: West Chester, PA
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Default I dimpled

I remember really sweating that fluting business, because it seemed like no matter what I did, it didn't make it much better. But I dimpled 1402 and 1403 so that I could see whatever gap there might be between the holes, to work on with the fluting. I never got it perfect; but when several iterations yielded no improvement, I moved on. My canopy fits and works perfectly, so I am satisfied; although I still have tennis elbow from all the cleocoing involved in that canopy frame build.
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  #6  
Old 12-27-2017, 11:26 AM
Stockmanreef Stockmanreef is offline
 
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well, the answer from Van's is dimple the under structure.

They were quite surprised that this was not called out in the plans considering the "do it exactly" statement on the next page.
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  #7  
Old 12-27-2017, 02:14 PM
control control is offline
 
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Great to have that sorted out

The fuel tanks is still the chapter I disliked the most but chapter 38 has been the most challenging one for me so far...
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  #8  
Old 12-27-2017, 03:42 PM
Stockmanreef Stockmanreef is offline
 
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I don't know if I liked or disliked the fuel tank section. I won't know until I put fuel in the tanks. If the don't leak, then I will have liked that section. If they leak on the other hand........
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  #9  
Old 12-28-2017, 06:36 PM
Stockmanreef Stockmanreef is offline
 
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well, what I get for reading and not looking is that the 1402 and 1403 are already dimpled as received from Van's. First parts in the kit that I can recall that are already dimpled. I even deburred the parts and did not notice until I went to dimple them.
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  #10  
Old 12-28-2017, 07:28 PM
salto salto is offline
 
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Do we need to start worrying about you Ken?
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