Moderator note, posts taken into a new topic since it certainly deserves one: https://www.homebuiltairplanes.com/.../14183-interesting-aircraft-4.html#post162056 I've alway wanted to try an asymmetrical single-engine homebuilt along the lines of the Blohm & Voss BV.141 and other unbuilt designs (see the Blohm & Voss section of Luft46.com). You could make an argument for crash safety with this layout (engine, fuel all separate from the pilot) but the real reason would be just for fun and to try something different. As this clip shows, it certainly doesn't make for an unmaneuverable aircraft. [video=youtube_share;SV96hXwWN7c]http://youtu.be/SV96hXwWN7c[/video] Given the relative weights involved at the light aircraft scale, I'd go with a low-wing single-seater to start, with the pilot sitting over the wing at about 25% chord in a simple fuselage with glider-like visibility and the engine in a nacelle with a fuel tank between the two. Putting the rudder or an auxiliary vertical fin in the slipstream with either a definite airfoil contour or maybe adjustable incidence on the fin would counteract the yaw from the engine with power, much like a high-mounted horizontal stabilizer counteracting the pitch-down with power from pylon mounted engine. If you can mentally move the engine from the nose to the wing of this Moni motorglider than you have a pretty good idea of the concept. For a two-seater, if you can imagine this Wing Derringer with just one engine and a small auxiliary find added to the stabilizer tip behind the remaining engine, then you have a pretty good idea of what I have in mind.