ORIGINAL: flyboybuster
Why are all the flying wings that I see on the market either tapered, swept, or delta?
The tips are back far from the CG, functioning like the tail does in a regular configuration: pushing down.
Swept back also acts like dihedral.
ORIGINAL: flyboybuster
Can you use a straight wing for a flying wing design???
Yes, but it would be less pitch stable and the airfoil must be reflexed.
ORIGINAL: flyboybuster
I'd like to make a ducted fan tie fighter with half of a crashed 4 star wing; do you think it's possible?
Only if you add a tail, I believe.