Schwerer Gustav - Hitler's giant gun - How it worked and why it

The Gustav gun was a gun about 12 meters high, 47 meters long, weighing 1,350 tonnes and was firing 10 tonnes shells through a 30 meters long pipe. 22 people could sit aligned on the barrel of the gun.

Gustav gun hi-res stock photography and images - Alamy

Dora railroad gun

the DORA the bigs railroad gun of the wwII and of the wold by Tefnut -- Fur Affinity [dot] net

All About Schwerer Gustav & DORA Der Deutsche Stahlhelm 1939's Blog

Heavy Gustav - The Largest Weapon Ever Built

Was Schwerer Gustav misused? Or was it a mistake to build it in the first place? - Quora

The Nazis' Schwerer Gustav Railway Gun, The Biggest Gun Ever Built

Krupp 80 cm Kanone Schwerer Gustav (Dora) Railway Gun

Sandboxx The Nazi Schwerer Gustav rail gun: Big bang for the buck, or small spark for the Reichsmark?

Schwerer Gustav: Biggest Gun Ever Used in Combat

Hitler's Super Gun - Schwerer Gustav

Gustav gun hi-res stock photography and images - Alamy

Schwerer Gustav: It's a Really Big Gun

80 cm Gustav Railway Gun