JurgenRoeland
Well Known Member
Bit confused on the directions in the plans for the RV7 in the section "building the rudder skeleton".
Near the end of this chapter Vans states:
"The aft three 3/32 holes in the upper edge of R901-L and R901-R should be drilled #30 and dimpled. These holes will later be used to attach the R-909 rudder tip. While the holes could be opened to #30 when drilling the tip to the rudder, it would be nearly impossible to dimple the skins because the rudder is so narrow at that location'.
I assume they are refering here to the top row of prepunched holes in the skin (the line above the R903 rib). The rib itself goes with 3/32nd rivets, the line above for attachment of the fiberglass rudder tip calls for CS4-4 pop rivets.
Why do they talk about dimpling here ??? A pop rivet needs no dimpling ? Or does it.
Thanks for the help.
Near the end of this chapter Vans states:
"The aft three 3/32 holes in the upper edge of R901-L and R901-R should be drilled #30 and dimpled. These holes will later be used to attach the R-909 rudder tip. While the holes could be opened to #30 when drilling the tip to the rudder, it would be nearly impossible to dimple the skins because the rudder is so narrow at that location'.
I assume they are refering here to the top row of prepunched holes in the skin (the line above the R903 rib). The rib itself goes with 3/32nd rivets, the line above for attachment of the fiberglass rudder tip calls for CS4-4 pop rivets.
Why do they talk about dimpling here ??? A pop rivet needs no dimpling ? Or does it.
Thanks for the help.