Victor Appleton 
Tom Swift And His War Tank; Or, Doing His Bit For Uncle Sam [EPUB ebook] 

Tom Swift And His War Tank Or Doing His Bit For Uncle Sam written by Victor Appleton. The popular science fiction and adventure series, in which the character develops incredible wartime inventions to rescue the day, was set at the time of the First World War. The United States joins in The Great War and everyone has war fever. Ned Newton has quit his job to sell liberty bonds, and Tom Swift is secretly developing a new tank for use in combat. The project is so secret that Tom does not even let his close friends know, and German nationals try to steal his tank. Tom's tank is bigger and able to travel at twice the speed of current models, with a maximum of 12 miles per hour. At the expense of limited firepower with four unspecified machine guns, the tank has heavier armor plating than the British tanks. Moreover, the interesting part to know is how Tom invented a war tank and then what happened next, which is possible after reading the novel!