Flying wing is a Super simple Design
you Can use Any Foam sheet like Depron and Biofoam
6mm will work best
use these Electronics
the part:
1x battery 2200mAh 3s 20-30C
1x esc multistar 20A
2x servo hextronic 9g
1x Brushless 2000-2200kv
1x APC E 6x4 propeller
this is advance Setup.
Designing a wing
Build Video