The four Sangamon-class warships were originally navy cruise ships Trenton, Ma Kai, New Orleans and Kathy. After completion, it was purchased by the US Navy as a fleet tanker, and was converted into a escort aircraft carrier in 1942. The ship number is AVG,1August 20th, 942, and it was changed to ACV in July, 43. The middle freeboard of this class ship is low, because it was originally the deck of the mail ship, which was used to install oil supply equipment. The width of the bow flight deck is reduced and two lifts are installed.
After the Sangamon class was completed, it participated in the allied landing operations in North Africa, thus creating a precedent for the use of escort aircraft carriers as fleet aircraft carriers. It is considered to be the most successful type of aircraft carrier in the early days, and it is also the prototype ship of Coleman Bay which was built in large quantities later. Later, he entered the Pacific Ocean to participate in the war against Japan.
1944 10, the first escort carrier group under the command of Major General Thomas sprague was "honored" to be attacked by the first kamikaze special attack team aircraft taking off from Davao. The flight decks and hangar decks of Suwani and Santi were blown through, and they can still fight after emergency repairs. During the battle of Okinawa, the four ships were repeatedly hit hard by Japanese bombers and suicide planes. Fortunately, none of them sank.