Conning Towers-Nautilus Park in Groton in Southeastern Region, Connecticut — The American Northeast (New England)

Japanese Type A

Photographed by Michael Herrick, September 14, 2022

1. Japanese Type A Marker

Inscription. During World War II, the
Japanese "Type A" two-man
mini-sub was carried "piggy back"
by a mother ship, usually another
submarine, to its area of operation.
Type A submarines were used during
the attack on Pearl Harbor, Hawaii
and throughout the war, but were
generally unsuccessful.

Topics. This memorial is listed in these topic lists: War, World II • Waterways & Vessels.

Location. 41° 23.259′ N, 72° 5.246′ W. Memorial is in Groton in Southeastern Region, Connecticut. It is in Conning Towers-Nautilus Park. It can be reached from Crystal Lake Road west of Connecticut Route 12 when traveling west. Located at the Submarine Force Library & Museum at the Naval Submarine Base New London. Touch for map. Memorial is at or near this postal address: 1 Crystal Lake Road, Groton CT 06340, United States of America. Touch for directions.

Regionally, this memorial is on the Connecticut Shoreline,

in Greater New London, in Mystic and the Eastern Shore,

and in the Thames River Valley.

It is also in the American Northeast,

in New England,

and on the Eastern Seaboard. Globally,

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it is in the North Atlantic Region,

North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once New London County

and also one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: USS X-1 (SSX-1) (a few steps from this marker); Swimmer Delivery Vehicle (SDV) (a few steps from this marker); Missions NR-1 (within shouting distance of this marker); Submarine NR-1 (within shouting distance of this marker); UGM-84 Harpoon (within shouting distance of this marker); Sonalysts Submariners (within shouting distance of this marker); Connecticut State Ship (within shouting distance of this marker); USS Nautilus (SSN571) (within shouting distance of this marker). Touch for a list and map of all markers in Groton.

Also see . . .
1. Type A Kō-hyōteki-class submarine (Wikipedia). (Submitted on September 24, 2022, by Michael Herrick of Southbury, Connecticut.)
2. US Navy: Submarine Force Museum. (Submitted on September 24, 2022, by Michael Herrick of Southbury, Connecticut.)
3. Submarine Force Library and Museum (Wikipedia).

Japanese Type A Submarine and Marker image. Click for full size.

Photographed by Michael Herrick, September 14, 2022

2. Japanese Type A Submarine and Marker

(Submitted on September 24, 2022, by Michael Herrick of Southbury, Connecticut.)

Japanese Type A Submarine image. Click for full size.

Photographed by Michael Herrick, September 14, 2022

3. Japanese Type A Submarine

Photographed by Michael Herrick, September 14, 2022

4. Japanese Type A Submarine

Credits. This page was last revised on May 19, 2026. It was originally submitted on September 24, 2022, by Michael Herrick of Southbury, Connecticut. This page has been viewed 201 times since then and 11 times this year. Photos: 1, 2, 3, 4. submitted on September 24, 2022, by Michael Herrick of Southbury, Connecticut.