Netopyr Tsar Tank :

The Tsar Tank , also known as the Netopyr’ which stands for pipistrellus (a genus of bat), was an unusual Russian armoured vehicle developed by Nikolai Lebedenko, Nikolai Zhukovsky , Boris Stechkin , and Alexander Mikulin from 1914 on-wards. The Tsar Tank project was scrapped after initial tests deemed the vehicle to be under-powered and vulnerable to artillery fire.
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