How successful were the human torpedoes, developed by the Japanese during the WW2?

it was a great success and the main threat for US Navy
it was a success, over 50 ships were sunk
it was a disappointment
it was never used
Kaitens had a very limited diving depth, which in turn limited the diving depth of the host sub­ma­rine. This is one of several factors blamed for the very poor survival rate of sub­marines armed with kaitens: eight sub­marines being lost for the sinking of only two enemy ships and damaging several others.

Answers distribution

it was a great success and the main threat for US Navy
it was a success, over 50 ships were sunk
it was a disappointment
it was never used
answers
flagNew Zealand
5%
0%
80%
15%
20
flagSweden
2%
20%
65%
11%
35
flagGreece
0%
17%
64%
17%
17
flagCanada
14%
6%
62%
14%
48
flagSwitzerland
10%
17%
62%
10%
29
flagGermany
11%
12%
61%
13%
240
flagAustralia
8%
16%
60%
11%
60
flagthe United States
8%
16%
59%
14%
854
flagthe United Kingdom
11%
13%
58%
14%
582
flagPoland
10%
16%
55%
16%
21039
flagthe Netherlands
16%
14%
54%
14%
62
flagFrance
11%
15%
54%
13%
44
flagBelgium
22%
4%
50%
22%
22
flagRepublic of Ireland
26%
8%
48%
15%
60
flagSpain
22%
9%
45%
19%
31
flagItaly
10%
20%
45%
25%
20
flagUnknown
13%
21%
43%
21%
1534
flagNorway
20%
20%
43%
16%
55
flagIndia
21%
25%
42%
10%
75
flagJapan
10%
30%
40%
20%
20

Gender

men48%
women43%
it was a great success and the main threat for US Navy
10%
13%
it was a success, over 50 ships were sunk
19%
18%
it was a disappointment
48%
43%
it was never used
20%
24%

Language versions

question
answers
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How successful were the human torpedoes, developed by the Japanese during the WW2?
1446
55%

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