|
|
|
|
|
Ko-hyoteki Class Submarine align="center" colspan="2"|
Ko-hyoteki class submarine grounded in the surf on Oahu after the Attack on Pearl Harbor, December 1941. | | lign ="center" style="color: white; height: 30px; background: navy no-repeat scroll top left;"|General characteristics | align ="center" style="color: white; height: 30px; background: navy no-repeat scroll top left;"|Japanese Navy Ensign | | isplacement: | 46 tons submerged | | ength: | 23.9 m (78.5 ft) | | eam: | 1.8 m (6 ft) | | eight: | 3 m (10.2 ft) | | allast: | 5899 lb (2,670 kg) in 534 times 11 lb (5 kg) lead bars | | esigned depth: | 30 m (100 ft) | | ropulsion: | 192 trays of two two-volt cells each, 136 trays forward, 56 trays aft; one electric motor, 600 horsepower (450 kW) at 1800 rpm, two screws conter-rotating on single shaft, leading prop 1.35 m diameter, right-handed; trailing prop 1.25 m diameter, left-handed | | peed: | 23 knots surfaced, 19 knots submerged | | ange: | 100 nautical miles at 2 knots, 80 nautical miles at 6 knots, 18 nautical miles at 19 knots | | omplement: | 2 | | rmament: | two 18-inch torpedoes muzzle-loaded into tubes, one 300 lb (140 kg) scuttling charg | The Ko-hyoteki (甲標的, "Type 'A' Target") class of Japanese midget submarines had hull numbers but no names. For simplicity, they are most often referred to by the hull number of the mother submarine. Thus, the midget carried by I-16 was known as the I-16 midget. The midget submarine hull numbers beginning with the character "HA", which can only be seen on a builder's plate inside the hull. Fifty were built. The "A Target" name was assigned as a ruse -- if their design was prematurely discovered by Japan's foes, the Japanese Navy could insist that the vessels were battle practice targets. They were also called "tubes" and other slang names. The first two, Ha-1 and Ha-2, were used only in testing. They did not have conning towers, which were added to the later boats for stability underwater. Ha-19 was launched by the I-24 at Pearl Harbor. Most of the other fifty hull numbers are unaccounted for, although two were captured in Sydney (Australia), and others in Guam, Guadalcanal, and Kiska Island, accounting for some of the other hull numbers. The submarines were each armed with two 17.7 inch torpedoes in muzzle-loading tubes one above the other on the port bow. In the Pearl Harbour attack the specially designed type 97 torpedo was used, but problems with the oxygen flasks meant that all later attacks used the type 91 torpedo designed for aircraft launching. There was also a demolition charge which it has been suggested was large enough to enable the submarine to be used as a suicide weapon, but there is no evidence that it was ever used as one. Five of these boats participated in the Pearl Harbor attack, with one actually making into the harbor. Of the five used at Pearl Harbor, one was captured and the other four sunk or lost. A photograph taken from a Japanese plane during the Pearl Harbor attack appeared to show a midget submarine inside Pearl Harbor firing torpedoes at Battleship Row, but subsequent research has completely disproven this theory. Type A midget submarines were also used to attack Sydney, Australia, and Diego Suarez, Madagascar. See also References - Ha-19 (Midget Submarine, 1938-1941): http://www.history.navy.mil/photos/sh-fornv/japan/japsh-h/ha19.htm
- Pearl Harbor Attacked website: http://www.pearlharborattacked.com
- Midget submarine attack on Sydney: http://www.awm.gov.au/atwar/remembering1942/midget_submarine/
|  | teton village, wyoming
wilson, wyoming
carter, wyoming
evanston, wyoming
fort bridger, wyoming
lonetree, wyoming
lyman, wyoming
mountain view, uinta county, wyoming
robertson, wyoming
airport road, wyoming
mc nutt, wyoming
| south flat, wyoming
ten sleep, wyoming
washakie ten, wyoming
west river, wyoming
winchester, wyoming
worland, wyoming
hill view heights, wyoming
newcastle, wyoming
osage, wyoming
upton, wyoming
tyranid
| ebonics
emperor (band)
upholder class submarine
harry hay
african american vernacular english
kardashev scale
drago doctrine
bot
bthory
betfair
local government areas of new south wales
| deregulation
space habitat
local government areas of victoria
local government area
local government areas of queensland
local government areas of south australia
aerobraking
local government areas of western australia
black powder
local government areas of tasmania
local government areas of the northern territory
|
|
|
|
| Copyright 2005-2009 OnPedia.com. All Rights Reserved |
|
|