This does look like a scaled down version of the David Boddington designed Tyro Major, mentioned earlier. I have a Tyro Major that I scratch built a couple of years ago and it is quite a bit bigger than this and flies well on a 20 s stroke or a 25 4 stroke. Not very fast, but stable and durable.
The LA10 should fly yours very well. And I see it has dual aileron servos. Nice touch.