Kaidai-type submarine
Kaidai IV (I-61/162 class)

Boat
Builder
Laid down; Launched; Completed
Results
Fate
I-61
Mitsubishi, Kōbe Shipyard
15 November 1926; 12 November 1927; 6 April 1929
-
Lost in an accident on 2 October 1941 in the Iki Channel. Raised and scrapped in 1942
I-162 (ex-I-62)
Mitsubishi, Kōbe Shipyard
20 April 1927; 29 November 1928; 24 March 1930
Damaged RMS Longwood 31 January 1942 Damaged RMS Spondilus on 4 February 1942 Sank RMS Lakshmi Govinda on 10 March 1942 Sank Dutch merchant ship Merkus on 16 March 1942 Damaged RMS San Cirilo on 21 March 1942 Sank unknown merchant ship on 22 March 1942 Sank Soviet merchant ship Mikoyan on 3 October 1942 Sank RMS Manon on 7 October 1942 Damaged RMS Martaban on 13 October 1942 Sank RMS Fort McCloud on 3 March 1944
Decommissioned 30 November 1945, sunk as a target off the Gotō Islands on 1 April 1946
I-164 (ex-I-64)
Kure Naval Arsenal
28 March 1928; 5 October 1929; 30 August 1930
Sank Dutch merchant vessel Van Overstraten on 22 January 1942 Damaged RMS Idar on 28 January 1942 Sank SS Florence Luckenbach on 29 January 1942 Sank Indian merchant ship Jalatarang on 30 January 1942 Sank Indian merchant ship Jalapalaka on 31 January 1942 Sank Norwegian merchant ship Mabella on 13 March 1942
Sunk by USS Triton south of Kyūshū 29°25′N 134°09′E / 29.417°N 134.150°E on 17 May 1942

Question: What was the industrial production of Kaidai-type submarines from 1929 to 1930?
Answer: Three Kaidai IVs I-61, I-162, and I-164 were constructed between 1929 and 1930.