Designing and building a flying wing RC model from scratch XFLR5

This is my attempt to design and build my own flying wing.
I wanted to build a small, portable size wing that would be easy and fun to fly. I used XFLR5 analysis tool to verify my vision (I'm not an expert user).
The wing came out very light and also very wobbly. I used packing tape and 3x1mm carbon fiber spars to stiffen it, but it fluttered like crazy at certain AoA.
Apart from flutter, the wing flew pretty well. It glided well and it was stable. I could hover it at 50% power. Just what I was trying to achieve.

Part two, with improved wing: https://www.youtube.com/watch?v=7bB2NWsrfWc

Dimensions:
Span: 1200mm
Root chord: 150mm
Tip chord: 100mm
Winglets: 80mm high
Sweep angle: 30º

Electronics:
Cobra 1960kv
5030 x three blade prop
800mAh 3S battery
12A Blue series ESC
2x 4.3g HD-1440a servos

XFLR5
http://www.xflr5.com/xflr5.htm

"Odyssey" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/

Видео Designing and building a flying wing RC model from scratch XFLR5 канала Antti Vainik