Horten Ho 229, a German twin-jet engine, tailless fighter-bomber, from which 2 prototypes have been flown prior to the end of the WW2, had been an incredibly superior model. Thank you Kim!

Above photo taken in 1950

In 1943 the all-wing and jet-propelled Horten Ho 229 promised spectacular performance and the German air force (Luftwaffe) chief, Hermann Göring, allocated half-a-million Reich Marks to the brothers Reimar and Walter Horten to build and fly several prototypes. 

In 1943 Göring issued a request for design proposals to produce a bomber that was capable of carrying a 1,000 kilograms (2,200 lb) load over 1,000 kilometres (620 mi) at 1,000 kilometres per hour (620 mph); the so-called "3×1000 project".

 Conventional German bombers could reach Allied command centers in Great Britain, but were suffering devastating losses from Allied fighters.

 At the time, there was no way to meet these goals—the new Junkers Jumo 004B turbojets could provide the required speed, but had excessive fuel consumption. The Hortens concluded that the low-drag flying wing design could meet all of the goals: by reducing the drag, cruise power could be lowered to the point where the range requirement could be met.

The aircraft utilized retractable tricycle landing gear, with the nosegear on the first two prototypes sourced from a He 177's tailwheel system, with the third prototype using an He 177A main gear wheelrim and tire on its custom-designed nosegear strutwork and wheel fork. A parachute slowed the aircraft upon landing.

Numerous technical problems beset this unique design and the only powered example crashed after several test flights but the airplane remains one of the most unusual combat aircraft tested during World War II.

One of the problems was that the engines made a lot of heat, and the wings were made of plywood. 

This is what it would have looked like, if anyone had been able to get a photo of it

 

The U. S. Army found the Ho 229 prototypes V3 through V6 at Friedrichroda, Germany, in April 1945. The V3 (also referred to as Horten IX V3) was approximately half finished and nearest to completion of the four airframes. Army personnel removed it three days later and shipped it from Germany to the U.S. The aircraft arrived at what is now the Paul E. Garber Preservation, Restoration, and Storage Facility in Suitland, Maryland, around 1950.

it's the plane that they based the scene in Raiders of the Lost Ark on

https://airandspace.si.edu/collections/horten-ho-229-v3/

https://en.wikipedia.org/wiki/Horten_Ho_229

https://www.flickr.com/photos/24101413@N03/48966504418