You know how, on very rare occasions, you will just be messing about and come up with an excellent aircraft purely by chance?

This is one of those.
Each side has 3 engines in the same place, moved just enough for the propeller to spin without blowing up the aircraft.
You could pretty much call this the prototype for the Prop Jet series of aircraft.
What you see here is what happened after I figured out how to put the engines in the same place.

I built a plane for the engine and to my amazement it flew perfectly, first time.
It takes off by itself and seems to fly like it is on rails.

After leaving it for a few days and working on the Prop Jets, I made the wings look nicer and gave it a shiny coat of paint.

Cladding on the wings is XML'd for no weight/ no drag so as not to alter the flight characteristics of it.

I'm sure everyone has a plane like this (seemingly perfect on the first flight).
It's probably not pretty, but it flies amazingly well.
Pull those 'perfect right out of the box' aircraft and post them.