I wouldn't call it "degenerate", those are the very reasons we pick some configurations over others.This was not intended to degenerate into an electric vs. gasoline or laminar vs. turbulent argument..
I just thought there might be some who are interested in an alternative engine mounting arrangement.. it is worth exploring if you happen to be planning to power an aircraft with wing struts..
I doubt it. Some ballpark numbers show that you need a rather large strut to cope with the torsion from precession. Engine weight being significant, you'd have to beef it up a lot to take the bending load, and you'll probably end up with what is essentially an underwing-mount. Check out some of the engine mounts for an idea of the loads.Certainly, the strut-mounted twin engine concept is quite adaptable to electric propulsion as well as conventional fueled engines...
The Do28 (or was it 27) is a good example; by the time they ended up with significant mounts, it's structurally almost a wing ;-)
On big planes... yes, but not on small ones. Scaling not being linear means spar weight is insignificant in anything with a practical aspect ratio. Skin is the majority of the structural weight.BTW, aircraft designs with wing struts have been finding some advantages over cantilevered wing structures, as recently "re-discovered" in some in modern aircraft trade studies .. struts allow you to reduce structural weight and utilize thinner root airfoil sections.
An example: Truss-Braced Wing | AOE| Virginia Tech