Thanks G for the warning, I haven't had any intentions of picking up the Mach 2 Leduc ramjet though. Just too darn fugly! It's funny, the French produce some of the most beautiful aircraft like the Mirage series and then they make this. 

Definitely some bizarre designs; I especially like the submarine/airplane hybrid.

Of course the Germans during World War Two had some offbeat plane designs.

Some were offbeat, but others were only about 15-25 years ahead of their time, and the technology wasn't there yet to take full advantage of them.   Even with being bombed day and night, they made tremendous strides in advancement.....Could have done even more had not Hitler kept jumping around from one next great weapon to another.

I always liked the Saunders Roe SR. A/1 flying boat jet fighter.  

Here are some that really got beat by the ugly stick:

Jet powered biplane anyone?

https://en.wikipedia.org/wiki/PZL_M-15_Belphegor

The AD Scout sure looks like it would tip over in a slight breeze...would hate to have to land this beast in a crosswind...

https://en.wikipedia.org/wiki/AD_Scout

How about the VFW 614?  Let's take an airliner, and put the engines on top of the wings....

https://en.wikipedia.org/wiki/VFW-Fokker_614

Several of those were available in the '80s as vac kits, including the XC-99 and XP-55.

In 1915 Fokker tried to make a "Battle Plane", factory model M9. The front of each outboard fuselage was meant to hold a gun and gunner. The fuselages were not connected, so when the wings warped so did the the rest of the plane. The test pilot made two flights, one with gunners and one without, and said "No more!"

The weirdist i have is the BV-141 been gnawing at it for a while since i live in a 26' trailer right now.

Oh wow those are crazy awesome! Love that Fokker Steve and the Belphegor and AD Scout F-8. 

One 'aircraft' in my stash: