Thursday, November 07, 2013

Drilled elevator skins

The 31 and 32 drill bits came today from Aircraft Tool Supply. The 31 drill bit works, but the 32 drill bit is nonsense. It is nonsense because the hole becomes too small for a cleco. Although it is possible to push a cleco in there by force, you don't want to do that because you will damage the skin. The cleco itself does not work properly when the hole is too small, the friction will be so large that the spring does not engage, so the cleco does not clamp the pieces together. I haven't tried the dimple dies, but I would guess also the 32 holes are too small for the dies.

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