On Saturday, February 2, 2019 at 1:15:04 AM UTC-6, Eric Munk wrote:

Much snippery...

Wood is spruce by heart.

Sorry, Eric, bust I must disagree with you on that. Keifer is not the same as Spruce. If you use Spruce in equivalent thickness, you come out with a weaker spar.

Also, to another comment. Longer scarfs required for Keifer and backing blocks, as dictated by AC43.13 are not to be used, as they impart a "stiff spot" in the wing.

Please buy a copy of the translation of Workshop Practices, join VSA, and absorb the knowledge that is available through this group (VSA).

Steve Leonard