An LST2 is:
|Displacement:||1,780 long tons (1,809 t) light|
3,880 long tons (3,942 t) full load
|Length:||327 ft 9 in (99.90 m)|
|Beam:||50 ft (15 m)|
3 ft 4 in (1.02 m) bow
7 ft 6 in (2.29 m) stern
8 ft 2 in (2.49 m) bow
14 ft 1 in (4.29 m) stern
|Propulsion:||2 × General Motors 12-567 diesel engines, two shafts, twin rudders|
|Speed:||12 knots (14 mph; 22 km/h)|
|Boats & landing|
|2 to 6 LCVPs|
|Troops:||Approx. 140 officers and other ranks|
|Complement:||8 to 10 officers, 100 to 115 enlisted|
|Armament:||• 1 × 3 in (76 mm) gun|
• 6 × 40 mm Bofors guns
• 6 × 20 mm guns
• 2 × .50 cal (12.7 mm) machine guns
• 4 × .30 cal (7.62 mm) machine guns
In search of official photographs, I came up with this one of a landing structure at Inchon in 1950. I think that what is happening here is that an LCT is unloading an attack transport via a temporary pontoon wharf. These men are getting to Korea on a jeep that was carried from an LCT to a pontoon from an attack transport. Call what you like, but do not call this efficient.
Speaking of plagiarism, one more, as it can't hurt. (The source turns out to be Norman Friedman's U.S. Amphibious Ships and Craft. If you're going to plagiarise, go for the best.)
It's Diggers, with diggers! (RAAF heavy equipment is being unloaded to build runways on Leyte.)
These views suggest how important beach conditions are to determining how LSTs will land and be unloaded, but there is more to it. A beached 327 ft ship is going to suffer severe hogging strains depending on beach slope, tidal range, and unloading time. There is not much point in conducting an amphibious operation into a siege if you write off your resupply fleet doing it. It will also be out of service for an entire tide if the beach is too shallow for it to back off.
This is why High Command West's focus in the Normandy effort is Cherbourg, the obvious and immediate Allied objective. It is not always a welcome focus. The men of 1st and 29th Divisions will not be happy to know that the weak defences at OMAHA have been reinforced because of the threat that a landing there poses to the base of the Cotentin peninsula, for example. But it is a focus, and it is stripping resources away from other parts of Normandy.
There might be a bit of a surprise on the horizon.