A recurring theme of WWII U.S. submarine war patrols, as witnessed in yesterday’s Warship Wednesday on the USS Burrfish, was the typical cycle of going out on a 50-to-70-day deployment and then returning to a forward-deployed submarine tender for a three-week reset/resupply, and hitting the patrol beat once again.
That’s what allowed many boats, barring extreme damage that sent them stateside for repair, to pull off a dozen or more patrols inside a two or three-year period. During the Pacific war, over 40 American submarines made at least 10 patrols, with five making 15 and the USS Stingray (SS-186) making an amazing 16 patrols in the 39 months between December 1941 and February 1945.
This concept still exists in the Submarine Tendered Maintenance Period (SMTP) format, which can be accomplished in about three weeks alongside a submarine tender, despite today’s SSNs being far more advanced than the old fleet boats of the 1940s.
The hulking 23,000-ton USS Emory S. Land (AS 39), the lead ship of her three-hull class of the Navy’s most modern submarine tenders, is a combination of floating warehouse, hotel, and shipyard, packing over 50 specialized workshops in her 13 decks while housing over 1,000 bluejackets and MSC civilian mariners. Some 45 years young (one of her class was laid up in 1999 after a full career), she doesn’t move very often, instead allowing her charges to come to her for rest and support.
Since arriving at her current homeport in Guam in 2016, she has become such an enduring fixture there that she is often just referred to as “Building 39.”
However, Emory S. Land departed Guam on 17 May on a roaming deployment supporting the U.S. 7th Fleet, and last week made her seventh port call, HMAS Stirling, the Royal Australian Navy’s “stone frigate” on Garden Island outside of Perth.
Carrying 30 RAN ratings since last winter, the tender is set to conduct an STMP at Stirling as part of AUKUS Pillar 1’s effort to support Australia’s acquisition of a sovereign conventionally armed, nuclear-powered submarine capability.
This is the first time Australians have participated in a U.S. submarine maintenance period in Australia.
Likewise, a forward team of Sailors from Land have been in Stirling awaiting the arrival of their ship and getting things ready.
Land just got her first customer yesterday.
The Emory S. Land crew will execute planned and emergent maintenance activities including the removal and reinstallation of an antenna located in Hawaii’s sail, divers visually inspecting the underwater towed array and torpedo tube muzzles, and simulating the removal and installation of a trim pump, to include full rigging and preparations.
Looks like this is really happening.