After shakedown along the Pacific Coast,
Kalinin Bay departed
San Diego 3 January 1944 for replenishment duty in the Pacific. Laden with troops and a cargo of planes, she steamed via
Pearl Harbor for the
Gilbert Islands, arriving off
Tarawa Atoll 24 January to supply 5th Fleet carriers then engaged in the conquest of the Marshalls. For more than two weeks she provided logistic support from Tarawa to
Majuro Atoll before returning to
Alameda, California, 24 February.
Gilbert and Marshall Islands Campaign With Composite Squadron 3 (VC-3) embarked 9 April,
Kalinin Bay reached
Majuro, Marshalls, 23 April; conducted ASW air patrols off
Mili Atoll; and proceeded to Pearl Harbor 1 May to prepare for the Marianas operation. She departed Pearl Harbor 30 May; and, while en route to
Saipan, she successfully evaded a Japanese torpedo that crossed her bow close aboard. Touching at
Eniwetok 9 June,
Kalinin Bay reached the eastern coast of Saipan 15 June and commenced air operations in support of the invasion. After repelling an enemy air attack at dusk on the 17th, she sailed 19 June to ferry planes to and from Eniwetok. Returning to Saipan 24 June, she resumed effective air strikes against enemy positions on the embattled island until 9 July when she steamed via Eniwetok for similar duty at
Guam. Arriving 20 July, she launched direct support and ASW sorties until 2 August, then returned to Eniwetok to prepare for operations in the
Palau Islands.
Mariana and Palau Islands Campaign Kalinin Bay cleared Eniwetok 18 August and proceeded via
Tulagi,
Florida Island, to the Southern Palaus where she arrived 14 September with units of the 3rd Fleet. Ordered to furnish air support for the capture, occupation, and defense of
Peleliu,
Angaur, and
Ngesebus, she launched air strikes to support landing operations. For 2 weeks her planes, flying almost 400 sorties, inflicted heavy damage on enemy ground installations and shipping. On 25 September, alone, they sank or destroyed three cargo transports and six landing barges.
Philippines Campaign She departed the Palaus 30 September; and, upon arriving
Seeadler Harbor,
Manus Island, 3 October, she received a new commanding officer, Captain T. B. Williamson.
Kalinin Bay departed Manus 12 October en route to the
Philippine Islands. Ordered to provide air coverage and close air support during the bombardment and amphibious landings on
Leyte Island, she arrived off Leyte 17 October. After furnishing air support during landings by Ranger units on
Dinagat and
Homonhon Islands in the eastern approaches to
Leyte Gulf, she launched air strikes in support of invasion operations at Tacloban on the northeast coast of Leyte. Operating with
Rear Admiral Clifton Sprague's "Taffy 3" (Task Unit 77.4.3), which consisted of 6 escort carriers and a screen of 3 destroyers and 4 destroyer escorts,
Kalinin Bay sailed to the east of Leyte and
Samar as her planes, flying 244 sorties from 18 to 24 October, struck and destroyed enemy installations and airfields on Leyte, Samar,
Cebu, Negros, and
Panay Islands.
The Battle off Samar Steaming about 60 miles east of Samar before dawn 25 October, Taffy 3 prepared to launch the day's initial air strikes. At 6:47, Rear Admiral Sprague received word that a sizable Japanese fleet was approaching from the northwest. Comprising four battleships, eight cruisers, and eleven destroyers,
Vice Admiral Takeo Kurita's Center Force steadily closed and at 0658 opened fire on Taffy 3. So began the
Battle off Samar—one of the most memorable engagements in U.S. naval history. Outnumbered and outgunned, the slower Taffy 3 seemed fated for disaster; but the American ships defied the odds and gamely accepted the enemy's challenge.
Kalinin Bay accelerated to flank speed, and, despite fire from three enemy cruisers, she launched her planes, ordering the pilots "to attack the Japanese task force and proceed to
Tacloban airstrip, Leyte, to rearm and regas." As salvos fell "with disconcerting rapidity" increasingly nearer
Kalinin Bay, her planes, striking the enemy force with bombs, rockets, and gunfire, inflicted heavy damage on the closing ships.
Coming under heavy fire As the trailing ship in the escort caravan,
Kalinin Bay came under intense enemy fire. Though partially protected by chemical smoke, by a timely rain squall, and by valiant counterattacks of screening destroyers and destroyer escorts, she took the first of 15 direct hits at 7:50. At 17,000 yards, the Japanese battleship
Haruna fired two salvos from her main guns at
Kalinin Bay, and her second salvo landed a 14-inch (356 mm) shell which struck the starboard side of the hanger deck just abaft of the forward elevator. Sailors recovered fragments of the large caliber shell on the hangar deck. By 8:00, the Japanese heavy cruiser
Haguro was spotted steaming off ''Kalinin Bay's
port quarter as they closed to 18,000 yards and opened fire, shortly joined by the heavy cruiser Tone. Kalinin Bay
was hit by three 8-inch (203 mm) armor-piercing shells, two hitting the stern and one hitting the bow, while Kalinin Bay
responded with her single 5-inch (127 mm) gun and landed a pair of hits to the Haguro
. One 5-inch (127 mm) shell destroyed Haguro's
radio transmitter while the other cut her communication tables. At 8:25, Haguro
was hit by a pair of 100-pound bombs which caused her to drop out of formation while Tone
followed her. Kalinin Bay's'' gunners claimed credit for this damage. However, salvation did not come as at 8:30, the light cruiser
Yahagi leading the destroyers
Yukikaze, Isokaze, Urakaze, and
Nowaki steamed over the horizon off her starboard quarter and closed to 15,000 yards and fired a spread of 24 torpedoes, some of which came dangerously close to hitting the carrier until fighters destroyed them with strafing runs. However, immediately afterwards
Haguro and
Tone recommenced firing on
Kalinin Bay, and to great effect. Most of next eleven 8-inch (203 mm) shell hits were scored after 08:40 when
Tone and
Haguro closed to 10,100 yards. Many hits passed through the flight deck and hanger bay, starting a large fire, while near misses flooded seawater into the ship. Most dangerously, the first of these 8-inch (203 mm) shells holed
Kalinin Bay below the waterline, passed through the ship, and detonated after coming out the other side and hitting the water, effectively acting as both a hit and near miss. This shell disabled the ship's fuel lines, shredded her forward bulkhead, and put the ship in serious danger. Another shell passed through the flight deck and into the communications area, where it destroyed all the radar and radio equipment.
Tone and
Haguro switched fire to
USS Fanshaw Bay at 8:55. At 9:15,
Yahagi and her destroyers, which were kept at bay by the daring and almost single-handed exploits of the destroyer
USS Johnston which they proceeded to sink with gunfire, launched a premature torpedo attack from 10,500 yards. As the torpedoes approached the escort carriers, they slowed down. A
Grumman TBF Avenger from strafed and exploded two torpedoes in
Kalinin Bay wake about 100 yards astern, and a shell from the latter's 5 inch gun deflected a third from a collision course with her stern. As part of Taffy 3,
Kalinin Bay had prevented a Japanese penetration into
Leyte Gulf and saved
General Douglas MacArthur's beachhead in the Philippines. At a cost of five ships and 1,161 men, Taffy 3, aided by her own planes and those of "Taffy 2" (Task Unit 77.4.2), sank three enemy cruisers, seriously damaged several other ships, and turned back the "most powerful surface fleet which Japan had sent to sea since the
Battle of Midway." Despite the battle damage, Taffy 3 cleared the air of attacking planes; at noon, the escort carriers retired southeastward while their escort searched for survivors from
St. Lo. Though
Kalinin Bay suffered extensive structural damage during the morning's furious action, she counted only 5 dead among her 60 casualties. Weary and battle scarred,
Kalinin Bay was awarded the
Presidential Unit Citation for heroic conduct as a unit of Taffy 3. She steamed via
Woendi,
Schouten Islands, to Manus, arriving 1 November for emergency repairs. Getting under way for the United States 7 November, the escort carrier reached San Diego 27 November for permanent repairs and alterations. ==End of career==