The Russian K7

Built in Russia during the 1930s, the K7. flew 11 times before crashing and killing 15 people. The designer, Konstantin Kalinin, wanted to build two more planes but the project was scrapped.
Later, Stalin had Kalinin executed. Evidently, it was not good to fail on an expensive project under Stalin. It’s got propellers on the back of the wings, too. You can count 12 engines facing front. With the cannons, the size would be equivalent to the Empire State Building on its side.
In the 1930s the Russian army was obsessed by the idea of creating huge planes. At that time they had as many propellers as possible to help get these huge flying fortresses into the air – jet propulsion came later. Not many photos were saved from those times because of the high secrecy levels of such projects.
Can you imagine what it would be like sitting in this thing when those cannons went off?
Looks like something out of a Jules Verne novel.

I checked the date, and April 1 has been and gone, but you make up your own minds!