RE: Sleeper design Just for Fun ! !
Careful with this model.
It is sold in the UK as the Blackhorse Superfly and mine lasted just three flights. Model is rather heavy as it is build from some strange far eastern wood that is slightly heavier and more brittle than balsa. The wing in particular is too heavy for it's size.
Flies OK with the engine running - mine had an Enya 50CX - but like a brick when the engine stops. Mine just fell out of the sky when turning gently into wind for a deadstick landing.
Closer examination showed that the wing had been built with a very blunt, almost flat, leading edge which I am sure did not help it's flying characteristics. Perhaps mine was a bad example but worth checking.