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The Sanshiki (San-Shiki or sanshikidan, lit. "type 3") ) anti-aircraft shell was designed for several gun calibers, including the 46.0 cm guns of the Yamato-class battleships.

The Sanshiki (San-Shiki or sanshikidan, lit. "type 3") ) anti-aircraft shell, also known as "Beehives", was designed for several gun calibers, including the 46.0 cm guns of the Yamato-class battleships.  

The round was equipped with a delay fuze set before firing that detonated the shell at the set altitude; on explosion, the steel stays and the incendiary tubes were ejected in a 20-degree cone forward, with the shell fragments from the explosion itself further increasing the amount of debris, in which the explosive of the shell deals heavily damage to incoming aircraft.

The round was equipped with a delay fuze set before firing that detonated the shell at the set altitude; on explosion, the steel stays and the incendiary tubes were ejected in a 20-degree cone forward, with the shell fragments from the explosion itself further increasing the amount of debris, in which the explosive of the shell deals heavily damage to incoming aircraft.