11. One of her aircraft made the first ship-launched aerial torpedo attack on a ship in August. 12. A biplane called the Kettering Aerial Torpedo was one of the world's first unmanned flying weapons. 13. An excavated Type 91 aerial torpedo was preserved at Resource Museum in Naha city, Okinawa, Japan. 14. These were equipped to carry an external 2, 000 lb ( 907 kg ) aerial torpedo . 15. It was the breakthrough for aerial torpedo . 16. Type 91 aerial torpedo is to be launched by aircraft power gliding from high in the sky. 17. It is the most successful aerial torpedo attack against a capital ship in history at the time. 18. Type 91 rev . 2 aerial torpedo first made it possible to use in the high seas. 19. After he returned, he made a project to develop the first ( and last ) domestic Aerial torpedo . 20. Capable of astounding aerial acrobatics, they can converge into a dense feathered ball equivalent to an aerial torpedo .
