i really wonder why PLA would need LHD or LHA in a Taiwan scenario, afterall, it is only some 100 mile away from mainland.
Distance does not make amphibious operation against Taiwan any less challenging, distances provide a lot of flexibility for the PLA to take advantage of other amphibious capabilities that if it were at a further distance it could not employ.
using LHD or LHA to release LCU or LCAC beyond horizon? i am not sure, cannot the the smaller ships just travel by themselves that mere 100 miles? why using a mother ship to complicate the operation? it is not like the fleet need to go cross high sea first
Smaller ships can cross the Taiwan Strait, but the LCACs would only be able to make the crossing and when it reached its destination, it would have to be refueled to return to the mainland. The problem is the amphibious vehicles that do not have the necessary range to carry out the assault from 50 km away and the helicopter support that the large amphibious ships have on their flight decks.
Conducting landings beyond enemy radar and visual range is a technique that employs maneuver warfare concepts such as surprise, operational speed, operational flexibility, and mobility tactics to achieve a tactical advantage over the enemy that can be decisively exploited while minimizing risk to assault ships.
The concept of assault beyond the horizon (OTH) is to not approach the enemy coast. Amphibious ships are located between 50 and 450 km from the beach, out of reach of enemy sensors and weapons on the coast.
Fast platforms such as LCACs, ZTD-05s and helicopters will do the landing work at the most critical hours of landing and would then be supported by conventional means. These means ensure that the amphibious force does not have to worry about topography (sand, clay, beach slope etc) or oceanographic conditions (tides and sea state). The area of operation or "battlespace" will be expanded, making the problem of defending the coast much more difficult for enemies.
An LST has to remain close to shore to land which increases the losses, both because of the enemy's coastal anti-ship batteries, also because of enemy aviation as its close air support capability will be limited and because of the threat of mines, as he has to get very close to shore to carry out the heist, this greatly increases the chances of losing a large amount of LSTs.
As an example, in 1991, a raid on Fayalka Island to destroy radars, communications centers and command posts, as well as capture Iraqi troops, was canceled after the USS Tripoli (LPH-10) and USS Princeton (CG- 59) hit mines on 18 February.
using the LHA as helo mother ship to refuel and re-arm? maybe, but that can be done with just any civilian ship with a large deck, why bother with a LHA?
LHAs are helicopter carriers for transporting and landing 1,200-1,800 troops with organic aircraft and combine the main features of assault cargo ship, helicopter transport ship and amphibious transport in one hull. These features include a full-length landing cover, a full-length dike depot, a large depot area for trucks and armored vehicles, and for housing a reinforced battalion. They also have an integrated computerized support amphibious warfare system for the control of helicopters, aircraft, onboard weapons, sensors, navigation, landing craft and electronic warfare.
so i think 071 & 075 are prepared for other scenario that are much more distant from mainland.
Ships like the Type 071 and Type 075 are prepared for any kind of scenario.
The LPD(Type 071) is one of the most versatile members of the amphibious forces. Its primary use is for troop transport and armored vehicles with considerable rear space. It combines the features of the Amphibious Transport (LPA), Amphibious Cargo Ship (LKA), and Helicopter Carrier (LPH), Amphibious Landing Vessel (LSD) and Tank Landing Vessel (LST). Must be able to carry helicopters permanently, due to its hangar. It's not good at everything, but it has a wide variety of capabilities.
It has a running dock carrying LCU or LCAC and a flight deck capable of arming and refueling attack and assault helicopters. In the US Navy, the LPD ranks below the LPH in troop-carrying capacity, but serves as a base for SEALs and EOD forces. Due to its versatility, during a division of an ARG, the LPD can conduct independent low-intensity operations involving sea-land, naval and air movements. It also serves as a mother ship for advanced operations forces (reconnaissance, special forces, beach reconnaissance, diversionary attacks, etc). Because it is closer to the enemy coast, it is better protected with armor, QBR protection, electronic warfare and active defense systems. Most countries have LPD, centering their forces around them.
and seriously, i think any measures that can be considered to use to move troops and heavy equipment across the strait, the first factor is survivability.
Have you ever seen the size of a Type 072A? They are over 100 meters long. If the LST approaches within only 5 km of the enemy coast, the ship will be tracked by the radars of coastal anti-ship batteries or even by small UAVs and will be quickly neutralized if the enemy launches AShM with explosive and penetrating warheads.
In terms of self-defense and self-survival, larger amphibious ships are by far the best job you can use. In addition to having anti-aircraft and anti-missile capabilities, large amphibious ships operate far from shore, which further increases the chances of survival, an LST cannot support these operations and rely on sea conditions to carry out the amphibious landing.
In this regard helicopters are mostly survivavble but it cannot do much heavy lifting.
Correct. But the use of a helicopter is versatile, and fundamentally important in the initial landing, the conquest of the beachhead has to be explored by helicopters, in addition to amphibious ships.
Among the helicopter missions during the amphibious assault we have:
- speed, superior maneuverability; troop mobility on the beach, allows troops to move faster inland from the beachhead;
- assault - transport troops and equipment to the beachhead;
- combat logistics - transport of ammunition, fuel, food and other cargo;
- escort - made by armed or specialized helicopters or by fixed-wing aircraft. They must defend enemies both on the ground and in the air;
- flexibility - can be used after landing and not only during it;
- Surprise and evasion - aircraft take off beyond the horizon, can use the terrain and are briefly exposed over the traffic area;
- has organic capacity for aeromedical evacuation, SAR and rescue. Carry the wounded after landing troops or cargo when near troops and beyond beaches;
- visual and armed recognition;
- air control for long-range air assault operations;
- C3 for OTH assault operations from LCACs and other amphibious vessels.
- has organic firepower, either from the aircraft itself or from escort helicopters;
- Expanded landing zone options. It is not limited to beaches and you can disembark without touching the ground (rappel);
- complicates the problem of enemy defense. The area to be defended is immensely larger as it includes the inland region and the beach. In conventional vessels, the beaches suitable for landing would be the ones best defended by the enemy. In air assault it is very likely to find the defenses scattered and less dense and the enemy will need advanced systems to act efficiently.
- the landing can start a day earlier with the insertion of precursors and with "empty" landings where the aircraft touches the ground and does not disembark troops. The objective is to disperse enemy troops in search of troops that do not exist.
Smaller LST provide the heavy lifting, plus better survivability because they are more difficult to target and easier to hide with jamming, compared to larger ships. and what is important is even if one is sunk, the damage is very limited.
larger ships, no matter they are 071, 075 or the 30kton ro-ro ships, are just too vunerable to missile attack, and even if just one missile slip through, the stake is just too high
You completely disregard the employment of these ships (OTH), the self-defense capability (CIWS, anti-aircraft guns and SAMs) and minimally exploit the shortcomings of the employment of the smaller ships. If you start to amplify this argument that all types of larger ships are more vulnerable and are more susceptible to being neutralized, then the PLAN should immediately stop the construction of Type 003 as they are vulnerable to AShM missiles like LRASM among others and disable permanently Type 001 and Type 002.