Internal ash spar blocks

[chintonmd]

I will be grateful for some advice concerning the main wing spar. My plans call for an ash block between ribs 3 and 4. My American friends tell me that it is a solid block of wood. I am trying to determine why it needs a solid block. If it is to prevent crushing vertically, it doesn't make sense to use a hardwood that is stronger than the spar caps. If it is to give some reinforcing to the plywood web under landing gear bolt channels, I think it could be done with ash plates with a spruce core. Or is there something I am missing?
I will post a photo in a moment. Merci.

[jphbague]

Good morning Charlie
You can see block between 3 and 4 on a right side of the picture.
I send you a email today with album about "longeron"
Best regards
Jean-Philippe

[cp1315]

Bonjour Jean Philippe

Et pour la galerie, un petit album de votre construction ?

Merci

[jphbague]

Bonjour,
Daniel m'a donné ton adresse Mail mais ça ne passe pas.
Peux tu la donner à nouveau s'il te plait.
Cordialement
Jean-Philippe

jphbague@yahoo.fr