aph: world war 2

The USS Washington at Philadelphia Naval Shipyard shortly after her commissioning on 29 May 1941. Though the North Carolina and South Dakota-class battleships have today been surpassed in notoriety by the cults of the Iowa and Yamato, in all likelihood they were the most efficient designs ever concocted. At long ranges they were to all intents and purposes immune to sinking by anything smaller than their own 16″ super-heavies, while said armament would have been devastating beyond the range of any likely opponent, bar the Yamato and Musashi. Most impressively they achieved this relative immunity on a displacement half that of the aforementioned Japanese titans. 

The Ki-200, Japan’s secret rocket propelled interceptor. Had it’s first test flight in August 1945, and full-scale production was just about to begin before Japan surrendered to Allied command in the pacific.  This is an amazing, high-tech aircraft that might have been able to change the fate of Hiroshima and Nagasaki if production had begun just a couple months earlier.  Many dozen partially assembled Ki-200 were found in hangers hidden in mountain caves, in the aftermath of the war.