The Martin XB-51, a prototype early jet bomber. With two engines mounted in pods attached to the front fuselage, and a third engine buried under the tailfin, it certainly looked unique. It lost the competition to the EE Canberra, but Martin got to build the Canberra for the USAF as the B-57.

Here's an obscure one, the Lloyd 40.08 Luftkreuzer. A experimental Austrian bomber from 1916, with a 300hp pusher engine in the middle and two 160hp tractor engines in the tailbooms that were actually reused fuselages from another plane.

The British Aerospace Nimrod AEW3, an airborn early warning plane based of the maritime partol Nimrod. The project proved to be very complex and expensive. Cancellation followed after 11 Nimrod AEW3s had been produced (and retired straight from the factory), the Boeing E3 Sentry was bought instead.

The Blackburn Beverly from 1950. Blackburn, a British company never bothered by aesthetics, designed this transport plane as a simple, cost effective plane to carry large loads to the front lines. The tailboom could accommodate 36 troops and was accessible through a ladder from the ground.

The PL-11 Bennett Airtruck, a plane designed in New Zealand for aerial fertelizing. Made of bits and pieces from WWII surplus, its short fuselage could accomodate a fertilizer hopper or 5 people. The twin boom tails were seperated so a truck could backup right to the fuselage to refill the hopper.

The Handley Page Heyford, a heavy bomber biplane. It's fuselage was attached under the upper wing rather to the upside of the lower wing. This improved the aerodynamics but gave it an odd look.

The Lockheed XFV "Salmon", a 1950's design for a VTOL plane for the USN. It's intended 7100hp turboprop engine never materialized so the testing stopped after realizing only exceptional pilots could land it vertically.

The Northrop M2-F3, a lifting body demonstrator plane that flew from 1970 till 1972. Lessons learned from this plane and its predecessors were used for the space shuttle.

The Supermarine Nighthawk, a 1917 design for a cannon armed Zeppelin interceptor. To reach the high alltitudes Zeppelins operated at it was given 4 wings but it proofed to be too underpowered, taking an hour to reach 3000m so the project was cancelled/

The Miles M.39B, an experimental tandem wing plane from 1943. The Libellula was a 5/8 demonstrator for the Miles M.39, a proposed high speed bomber. While testflights were succesfull, the M.39 program was cancelled in 1944.

Weird plane: the SO9000 Trident. A French interceptor powered by two jet engines in the wing tips, and a rocket engine in the fuselage. Develoment of the more conventional Mirage III, which matched the Tridents performance, meant the end of this mixed powered interceptor.

Weird plane: the Rutan Boomerang. This assymetrical plane was carefully balanced to make it stable, even in case when one of the engines would fail. This went so far that Rutan went throught the effort of making the right engine a bit more powerfull than the left one.

Weird plane: the Savoia Marchetti S.55, a Italian twin hull, twin engine float plane. Compared to its contemperaries in the mid 1920's this plane was pretty sleek and set multiple world records.

Weird plane: The Vought XF5U "Flying Flapjack".
Development of the Vought V-173 "Flying Pancake", this design sought to eliminate wingtip created induced drag, the propellors cancelling wingtip vortices. This resulted in a plane with a low minimum speed, high maximum speed and good maneuverability.

Weird plane: The Bugatti 100P, a twin engine raceplane from the late 30's. Due to the outbreak of WW2 it never flew, but in 2015 a reproduction was made and took to the air.

I'm gonna share my love for weird planes, starting with the Ilyushin Il-40P. After the Il-40 suffered from inhaling gun combustion gasses during testing, Ilyushin moved the air intakes to the very front of the plane resulting in a look only its designer could love.