21. German aerial torpedo development lagged behind other belligerents a continuation of neglect of the category during the 1930s. 22. A captured Type 91 aerial torpedo is displayed at the U . S . Naval Academy, Annapolis, Maryland. 23. While still at Ie Shima four days later, " LST-808 " was struck by a Japanese aerial torpedo . 24. The ship, from the ill-fated convoy PQ-17, had already been hit by an aerial torpedo in the Barents Sea. 25. Captain Fumio Aiko was assigned in charge of promoting the development project of Type 91 aerial torpedo since 1931. 26. Soon the SS " Nordeflinge " which had taken an aerial torpedo amidships and gone down in two minutes. 27. During the battle of Cape Matapan, she delivered the coup de grace to the, stricken by an aerial torpedo . 28. So he renamed the device an aerial torpedo and arranged a demonstration with the express aim of selling the company. 29. The Royal Navy had their traditional type aerial torpedo , which had been originally designed by White Head Company in 1925. 30. Off Cap Bon on 12 August a " Luftwaffe " aircraft launched an aerial torpedo at " Brisbane Star ".