© 1998 Anthony P. Tully
Initial Command Structure:
Commanding Officer: Captain Beppu Akitomo.
21 December 1943:
Conversion from seaplane tender * to aircraft carrier completed at Yokosuka ten months after it began. Assigned to Northeast Area Force 2nd Base Air Force (AirFlot 51, 12th Air Fleet). Remains at Yokosuka.
29 January 1944:
Depart Yokosuka for Truk with ZUIHO, TAKAO, and destroyers TAMANAMI, WAKABA and HATSUHARU. However, cruiser TAKAO splits off later the same day, having been ordered to assist the torpedoed escort carrier UNYO, now making her way back to Yokosuka.
1 February 1944:
At sea, assigned to Mobile Fleet, Cardiv 3, 3rd Fleet.
3 February 1943:
Arrive at Truk.
10 February 1944:
Following invasion of Kwajalein, CinC Combined Fleet orders departure from Truk back to rear areas. Depart Truk in company with ZUIHO, HATSUHARU and WAKABA.
15 February 1944:
Arrive at Kure.Captain Beppu relieved by Captain Jyo Eiichiro as commanding officer.
22 February 1944:
26 February 1944:
Arrive at Yokosuka.
1 March 1944:
Assigned to emergency plane shipment and reinforcement duty along with carrier RYUHO. CHIYODA departs Yokosuka for Saipan, escorted by INAZUMA and HIBIKI who remain with her throughout the month long roundabout voyage.
5 March 1944:
Arrive at Saipan, depart next day, arrive at Guam same evening.
8 March 1944:
Depart Guam, arrive Saipan same day.
10 March 1944:
Depart Saipan for Palau, with CHIYODA having embarked 201 Air Group for relocation to Palau.
12 March 1944:
Arrive at Palau.
15 March 1944:
19 March 1944:
21 March 1944:
Depart Balikpapan for Palau.
24 March 1944:
27 March 1944:
Depart Palau back to Balikpapan.
30 March 1944:
1 April 1944:
Depart Balikpapan for Davao.
3 April 1944:
Arrive at Davao.
5 April 1944:
Depart Davao for Kure.
10 April 1944:
Return to Kure.
11 May 1944:
After taking aboard aircraft of Air Group 653 on the 5th and 6th,depart Saeki for TawiTawi. Teamed with sister-ship CHITOSE, rendevous with task force led by super-battleship MUSASHI, comprised of ZUIHO, JUNYO, HIYO, RYUHO, MICHISHIO, SHIGURE, and AKISHIMO.
12 May 1944:
Arrive at Okinawa temporarily, depart again.
16 May 1944:
Arrive at Tawitawi as part of the Mobile Fleet's assembling for "A-GO Operation" the defense of the Saipan/Marianas area.
13 June 1944:
Depart Tawitawi for Guimaras, to escape the mounting submarine danger to the former, and respond to the attacks on Saipan on 11-12 June.
14 June 1944:
Arrive at Guimaras and begin taking on supplies.
15 June 1944:
"A-GO" Operation activated. Depart Guimaras with sister ship CHITOSE and rest of Mobile Fleet for the Battle of the Marianas (Battle of the Philippine Sea).
19 June 1944:
Launch air strikes in first day of the Battle of the Marianas. In the battle form part of the "Van Force" comprised of CHITOSE, CHIYODA, and ZUIHO screened by YAMATO, MUSASHI, HARUNA, KONGO, ATAGO, TAKAO, MAYA, CHOKAI, NOSHIRO, ASASHIMO, KISHINAMI, OKINAMI, TAMANAMI, HAMAKAZE, FUJINAMI, and SHIMAKAZE.
20 June 1944:
Air attack: At 1738 hit by one bomb on the flight deck aft, that started a moderate fire before it was extinquished. The bomb hit killed twenty men and wounded thirty, and destroyed two planes.
22 June 1944:
Anchor temporarily at Okinawa, depart next morning for the homeland.
1 July 1944:
Arrive Kure, enter drydock the next day for repairs.
9 July 1944:
Leave drydock, and remains in Kure for remainder of month.
3 August 1944:
Assigned to 2nd Diversion Attack Force. Remains in Inland Sea area.
20 October 1944:
Depart Oita with Ozawa's decoy Mobile Fleet (Third Fleet, CarDiv 3) for the Battle of Leyte Gulf. Force comprised of ZUIKAKU, ZUIHO, CHITOSE, CHIYODA, screened by HYUGA, ISE, OYODO, TAMA, ISUZU, HATSUZUKI, AKIZUKI, WAKATSUKI, SHIMOTSUKI, MAKI, KIRI, KUWA and SUGI.
25 October 1944:
Crippled by four aerial bomb hits that leave ship dead in the water with 13 degree list to starboard. ComCarDiv 4 in HYUGA attempts to tow, but this is prevented by a third attack. The ISUZU is ordered to remove the crew, but this is also frustrated due to continuing danger from air surface attack. After three attempts, ISUZU is forced to retreat with enemy surface forces in sight and CHIYODA under gunfire.
Sunk: At 1624 attacked by gunfire of U.S. Navy TG 38.3 (four cruisers, nine destroyers) surface forces, and stubbornly returns fire. At 1655 - hit repeatedly - she rolled onto her beam ends and sank. No survivors are permitted to be rescued, and apparently Captain Jyo Eiichiro and the entire crew of 1,470 officers and men perish. (Position 18 - 37' N, 126 - 45 E')
20 December 1944:
Removed from the Navy list.
It is unknown if any of CHIYODA's crew transferred to other ships after she went dead in the water, but it is clear that the much of the crew remained aboard at action stations.
Bob Hackett and Sander Kingsepp have posted a TROM covering CHIYODA's earlier career as a seaplane/midget submarine carrier on Sensuikan!