Thanks Don - it would indeed be useful to see your calculations so I can compare them to mine.
To answer an earlier query in post
#1049
- the bearing strength of the 195gsm carbon twill that I used throughout my build is 80,000psi according to Jim Marske's Composite Design Manual.
You can find my original load/stress calculations
>here<
- pages F4 and F5 detail how the carbon Load Transfer Bars and wing root metal fittings (for a 2-part wing) are calculated. In my calculations they need to be a minimum of 17 layers of cloth thick to carry the loads. I made my root section LTBs from 21 layers of CF cloth, encapsulated into the spar by a further 5 layers of CF cloth.
The LTBs transfer the spar cap loads from the pultruded carbon rods that run the length of the wing to the metal fittings. The page numbers (F4 & F5) refer directly to the corresponding pages in Marske's Composite Design Manual.