Submarine I-25

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伊号第二十五潜水艦

Submarine
Japanese submarine I-25 launching her Yokosuka E14Y floatplane during raid on Oregon
Japanese submarine I-25 launching her Yokosuka E14Y floatplane during raid on Oregon — Public Domain, Imperial Japanese Navy

Type B1 submarine that conducted the only aerial bombing of the contiguous United States in history. On September 9 and 29, 1942, Warrant Flying Officer Nobuo Fujita flew a Yokosuka E14Y floatplane from I-25 to drop incendiary bombs on Oregon's forests. Lost off the New Hebrides in late August or early September 1943, probably to the destroyer USS Patterson.

Class / type
伊十五型(乙型一型)
Displacement
2,584 Tons
Complement
97
Launched
8 June 1940
Commissioned / formed
15 October 1941
Lost / disbanded
25 August 1943
Armament
53cm魚雷発射管6門(魚雷17本)、14cm砲1門、25mm機銃2門、零式小型水上機1機(1941年は九六式小型水上機)
Fate
Sunk by submarine

History

IJN I-25 was a Type B1 (I-15 class) submarine built by Mitsubishi at Kobe and commissioned on October 15, 1941. She was designed to carry a single Yokosuka E14Y floatplane (Allied code name "Glen") for long-range reconnaissance.

I-25 holds the unique distinction of being the platform for the only aerial bombing of the contiguous United States during World War II — or in all of American history. On August 15, 1942, under Lieutenant Commander Meiji Tagami (田上明次), I-25 departed Yokosuka for the US Pacific coast. On September 9, 1942, she surfaced off Port Orford, Oregon, and launched the E14Y flown by Warrant Flying Officer Nobuo Fujita and observer Shoji Okuda. Fujita dropped two 76-kg incendiary bombs on the Siskiyou National Forest near Brookings, Oregon. Rain-dampened timber prevented the fires from spreading. Three weeks later, on September 29, Fujita flew a second mission and dropped two more incendiary bombs on the same area, again causing minimal damage.

I-25 also shelled the Fort Stevens military post in Oregon with her deck gun on June 21-22, 1942 — the only shelling of a US military installation in the continental US since the War of 1812.

I-25 was lost with all 100 hands off the New Hebrides in late August or early September 1943. The Combined Fleet record credits a depth-charge attack by USS Patterson (DD-392) on August 25, 1943, at about 13°10′S 165°27′E; other accounts place the loss about 150 miles northeast of Espiritu Santo and name USS Ellet or other destroyers, with dates as late as September 3. Nobuo Fujita survived the war and became a goodwill ambassador, visiting Brookings in 1962 and donating his family's 400-year-old katana to the city.

Related sites (4)

  • Mitsubishi Heavy Industries Kobe Shipyard — launched June 8, 1940

  • Yokosuka Naval District — primary home base

  • Near Brookings, Oregon, USA — Petty Officer Fujita launched from I-25 to bomb the Siskiyou National Forest on September 9 and 29, 1942. Only aerial bombing of the contiguous US in WWII.

  • Off the New Hebrides, about 13°10′S 165°27′E — position where USS Patterson's depth-charge attack of August 25, 1943 probably sank I-25 (Combined Fleet record); other accounts place the loss about 150 miles northeast of Espiritu Santo, up to September 3, 1943

Images

Nobuo Fujita, the pilot who flew from I-25 to bomb Oregon
Nobuo Fujita, the pilot who flew from I-25 to bomb Oregon — Public Domain, US Naval Institute

Sources

  1. IJN Submarine I-25: Tabular Record of Movement (Combined Fleet)Website
  2. Japanese submarine I-25 - WikipediaWebsite