JurgenRoeland
Well Known Member
I'm soon to be entered in the 'black death society'. But before that I have some small tasks remaining on the fuel tank preparation.
I just noticed on DWG16A (fuel tank plans) that on the top view there is stated "drill #19, deburr carefully !" on the skin to spar attachment holes
I was wondering why they are so explicit on the "deburr carefully".
Why is that ? Does it have to do with possible cracking of the hole while dimpling this larger size hole for the 8R8 screw ?
Another question.
These holes are drilled when the skin is off the spar. Is there any risk of misalignment or will I just be fine by enlarging the pre drilled holes to #19.
I just noticed on DWG16A (fuel tank plans) that on the top view there is stated "drill #19, deburr carefully !" on the skin to spar attachment holes
I was wondering why they are so explicit on the "deburr carefully".
Why is that ? Does it have to do with possible cracking of the hole while dimpling this larger size hole for the 8R8 screw ?
Another question.
These holes are drilled when the skin is off the spar. Is there any risk of misalignment or will I just be fine by enlarging the pre drilled holes to #19.
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