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  #11  
Old 04-26-2013, 12:30 PM
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cln1owner cln1owner is offline
 
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Quote:
Originally Posted by LAMPSguy View Post
Why does Vans have us use #30/40 countersinks for the screw holes on the spar flange? Shouldn't there be an appropriate countersink for a #8 and a #6 screw?
May be because the assembly instuctions have you intall the platenuts before countersinking for the screw. The platenut serves as a guide for the cutter. The #30 countersink cutter pilot fits the #8 screw platenut, the #40 fits the #6 screw platenut.

Quote:
Originally Posted by LAMPSguy View Post
Are you saying wherever the project needed to be countersunk, it was just adjusted .007" deeper (7 clicks on a countersink cage) than what was required for a rivet to sit flush?
Maybe as a general rule, however the the thickness of the dimpled material will influence the depth needed for a good fit.
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  #12  
Old 08-24-2013, 04:27 AM
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Default Countersink question supplemental

I'm a bit confused with this one; On step 2, 3rd paragraph, instruction says NOTE: Machine countersink in all rib locations. What does this means? I find that a little bit vague.

The rest is pretty much strait forward but this. Is this referring to the pair of holes that match the rib tab (top & bottom of the rib) or else? It can't be the holes matching the forward flange of the rib holes since you need to install AN470 rivets there to attached them to the spar (step 3 pg 12-07).
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  #13  
Old 08-24-2013, 06:52 AM
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Default how I took it

That is how I took it.
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  #14  
Old 08-24-2013, 06:40 PM
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Quote:
Originally Posted by Debovsky View Post
I'm a bit confused with this one; On step 2, 3rd paragraph, instruction says NOTE: Machine countersink in all rib locations. What does this means? I find that a little bit vague.

The rest is pretty much strait forward but this. Is this referring to the pair of holes that match the rib tab (top & bottom of the rib) or else? It can't be the holes matching the forward flange of the rib holes since you need to install AN470 rivets there to attached them to the spar (step 3 pg 12-07).
Marc, here is how I took it. Any time I see the words NOTE:, I believe it is basically referring to or a part of the step directly below it. So in this case, I believe it to refer to step 3 and step 3 has the directions for what to do along with the illustration.
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  #15  
Old 08-25-2013, 01:24 PM
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Tom,

Seen that way it makes sense. I guess there are many ways of expressing "NOTES" on a specific set of instructions. In this case, it precedes the instruction. Being a professional engineer myself, I usually provide a NOTE after an instruction set. There's the confusion. Just need to adapt! Besides, this may have been explained in the section 1 to 5 of the manual and as usual, we tend to overlook what we've read previously.

Thanks for the remark.
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Last edited by Debovsky : 08-25-2013 at 01:25 PM. Reason: make a typo correction
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  #16  
Old 08-25-2013, 11:08 PM
rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by propsync View Post
Marc, here is how I took it. Any time I see the words NOTE:, I believe it is basically referring to or a part of the step directly below it. So in this case, I believe it to refer to step 3 and step 3 has the directions for what to do along with the illustration.
Tom has it right.
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