Today, I ordered the first batch of PVC foam to fill the cutouts of the firewall. The firewall is the only place I could find where PVC foam in this thickness required. There is an option to use 70 kg/m3 foam for the final (outer) section of the wing spar.
The rest of the wing spar has to be filled with a higher density foam!
PVC foam is quite expensive, and I searched on various pages to find a good offer. In the end I ordered two small sheets of 25mm PVC from Easy Composites The sheets have a dimension of 540x505 mm and they are just enough for both the firewall cutouts and an outer section of the wing spars.
I found it the most economic solution.
- Cutlist (Attention! The svg has two pages. Some browsers do not handle tha well. It is better to use something like InkScape)
