Landing Ship Docks
The PA91-15 utilized these ships throughout WWII. This LCVP was from the mother ship USS Adair - APA-91.
Read about PA91-15 and her encounters at Okinawa.
Several LSD's participated in Okinawa invasions. Among them was LSD-5; LSD-1; LSD-4; LSD-6; LDS-7; LSD-8; LSD-13.
LSD's were strange in appearance with there huge docking well, a cavernous opening 44 feet wide and 396 feet long which ran from the stern to clear up under the bridge ending near the bow. Almost one hundred feet longer than a football field, The well deck was only 61 feet short of the ship’s 457 foot overall length. In it would fit 27 LCVPs, 18 LCMs with one LCVP in each, three LCU, one LSM - or anything small enough to fit its nose through the stern opening.
It was realized from the beginning that LSD's would be very versatile and handy ships to have around - not just during infrequent major amphibious landings but for general transport and day to day odd jobs that arise particularly including small craft maintenance.
Carter Hall (LSD-3)
Gunston Hall (LSD-5)
From "Hell on the Beach" & "Landing Craft at War"
see LSD History
fact, this is exactly what Maintenance became far better known for,
their ability to take smaller craft aboard for on the spot dry dock
Each LSD was equipped to change screws, shafts and other parts of smaller craft by virtue of a fully equipped machine shop as well as a complete wood shop for working on the smaller wooden-hulled landing craft and PT-boats.