So what is it if it not American, not LSA, and thus not Swearingen SX300?
Well if you're insisting its not American and not the SX300 it would be rude of me to suggest you're wrong!
However as I'm sure you realise, it is indeed American and it is the Swearingen SX300 kit plane from the 1980's.
A nice looking machine....well thats my view anyway!
Your control