This evening while dimpling the skins to my horizontal stab I noticed that the dimples were flat, well formed, but just didn't look like the other skins I'd done. I stopped about half way though and stuck a 426-3 rivet into one of the undimpled holes...it wouldn't fit.
I went back and looked at the manual for quite some time before determining that nowhere does it say to final-drill the skins out to #40 on the stab. We were told to Final-Drill the vertical stab in step 1 page 06-04. The rudder had us match drill a few of the holes, but none in the field of the rudder.
On the rudder, drilling was not necessary...but a 426-3 rivet would fit into the pre-punched holes in the rudder.
I'm using Cleaveland dies and the male has no problem fitting into the pre-punced hole. After the hole is dimpled, a 426-3 has no problem fitting....and no, I'm not underdimpling.
So here's the question, for those of you building the -14...did you predrill the prepunched holes in the stab?
Thanks,
Fred
I went back and looked at the manual for quite some time before determining that nowhere does it say to final-drill the skins out to #40 on the stab. We were told to Final-Drill the vertical stab in step 1 page 06-04. The rudder had us match drill a few of the holes, but none in the field of the rudder.
On the rudder, drilling was not necessary...but a 426-3 rivet would fit into the pre-punched holes in the rudder.
I'm using Cleaveland dies and the male has no problem fitting into the pre-punced hole. After the hole is dimpled, a 426-3 has no problem fitting....and no, I'm not underdimpling.
So here's the question, for those of you building the -14...did you predrill the prepunched holes in the stab?
Thanks,
Fred