Military Review

The concept of "folding" landing craft for the US Navy

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The July issue of 2013, the year of Proceedings, the main US naval magazine, published an article by Susan Altenburger, head of engineering company Phil Bolger and Friends Inc. of Gloucester, Massachusetts, by retired commander, "A Landing Craft For the 21st Century" by Susan Altenburger The US Navy Michael Bosworth (Deputy Director of Project Management Naval Sea Systems Command) and the US Navy Captain Michael Jung (Professor at Naval War College, and previously Commander of the Landing Transport Dock LSD 41 at Whidbey Island). The authors describe a proposal for the US Navy of a promising landing craft of a fundamentally new architecture, designated as Landing Craft Utility-Folding (LCU-F), and designed, according to the authors of the project, to replace in the US Navy as tank-landing LCU-1610 type boats, and partly - landing LCAC type air cushion boats (and proposed by them as a replacement for the KVP of the SSC project). The concept of the LCU-F boat was invented and started by the development of the recently deceased founder of the company Phil Bolger and Friends Inc. Phil Bulger, and is currently being developed by this company with the support of Naval Sea Systems Command and several other US Navy structures. Nevertheless, it is not clear whether the matter will reach the practical implementation of this project.



Project image of the proposed US Navy innovative landing craft LCU-F (c) Proceedings


The design of the LCU-F boat is based on a fundamentally new architectural concept for the "folding landing craft". The boat is similar to the “Swiss folding knife”, with folding aft and bow ends with sharp contours, removed during storage on board or in the dock chamber of the carrier ship, providing relative compactness. When launching, the ends of the boats “unfold”, transforming it into a high-speed vessel with a large elongation, low draft and significant payload, while the folding feed is also a long ramp, providing a convenient landing. The nasal tip has "water-cutting" contours, providing good seaworthiness in waves. When folded, the LCU-F has a length of 143 feet, a width of 22 feet and a height of 20,5 feet, which allows it to be placed not only on landing ships, but also on the decks of transport vessels and supply vessels. When unfolded, the boat has a length of 270 feet, a width of 22 feet, a draft on the bottom of 4,5 feet and is capable of carrying up to 420 tons of payload with a full displacement of up to 200 tons (up to tanks M1A1) with a speed of up to 19-20 knots. The boat has two 1200 hp diesel engines. Movers with propellers having a recess of up to 11 feet are used for throwing to shore. When approaching directly to the shore, the propellers are retracted into the hull, and the boat is set in motion by two helical columns, capable of providing up to 4,5 knots with a draft of 10 feet, and thanks to the ability of the columns to rotate 360 ​​degrees, giving exceptional maneuverability. For unloading equipment, the boat is deployed and approaches the shore with a feed ramp. Speakers are also used to remove the boat from the shore. The cruising range at a speed of 19 knots with a full load should exceed 1500 miles, while the boat will be able to carry out operations on landing from landing ships located at a distance of 100 to 200 miles from the coast, and will also be able to stay in the open sea at night, avoiding termination landing operations.

The same steering wheels provide the boat with good maneuverability when approaching the landing craft for reloading. In this case, the loading of vehicles and 20-foot containers can be carried out afloat by cargo booms through the sliding roofs of the landing compartment of the boat. Another feature of the LCU-F boat is the presence of folding on-board sponsons on it, controlled by a special gyrostabilization system. The folding sponsons should increase the stability of the boat at low speeds (when departing from the landing craft and approaching the coast).

The armament of the LCU-F boat should include an Avenger eight-charge firing module (using Stinger missiles) and a Vulcan automatic X-gun caliber 20-30 mm. At the rear of the hull, there is a landing pad capable of adopting a helicopter class AH-1 / UH-1, which will allow the use of boats as intermediate bases for refueling these helicopters during the landing operation. In the tanker version, the boat must carry 55 thousand gallons of light fuel. The presence of weapons, capacity and high speed and seaworthiness will allow the use of boats as light combat, guard, anti-sabotage, the provision of special operations forces, for anti-piracy actions, etc. Also, boats can provide fire support for the landing by placing on them combat vehicles MLRS HIMARS or MLRS, capable of firing directly from boats.

According to the authors of the article, the innovative project LCU-F will provide a combination of high speed, maneuverability, heavy payload, fuel efficiency and low draft - a combination of properties that the LCAC type boats (and the proposed ones for replacement of CWP SSC) and LCU-1610 are currently lacking. The best choice of the authors consider the combination of LCS type LCAC and boats type LCU-F. In particular, the amphibious combat group (Amphibious Ready Group - ARG) consisting of one universal landing craft LHD and two amphibious transport docks LPD / LSD is capable of carrying three boats of type LCAC (Lna HD) and no less than 12 of boats of type LCU-F (on LPD / LSD), thereby ensuring a speedy throw to the coast in one wave of at least 15 landing craft.

The concept of "folding" landing craft for the US Navy



The concept of the proposed US Navy innovative "folding" landing craft LCU-F (c) Proceedings
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  1. Genera
    Genera 10 July 2013 09: 10 New
    +1
    While it will be laid out, it’s not only that they will throw missiles and shells, but also seagulls at obs.rut.
    1. old man54
      old man54 10 July 2013 21: 56 New
      +2
      so he laid out then planned far into the sea, beyond the horizon, at a distance of 100 miles! Is it really not clear written !?
  2. Nayhas
    Nayhas 10 July 2013 10: 16 New
    +1
    Interesting concept. But unloading from the stern is not entirely convenient, maneuvering offshore while turning around 180 degrees is certainly feasible, but damn it under enemy fire is quite dangerous ...
    1. Aryan
      Aryan 10 July 2013 10: 25 New
      0
      first homosexuals were allowed to serve ...
      now they are going to land troops through zheppu ... sad
  3. VohaAhov
    VohaAhov 10 July 2013 10: 23 New
    +1
    It will be interesting to see when it develops on the go.
  4. Reserve buildbat
    Reserve buildbat 10 July 2013 11: 02 New
    +4
    An interesting "knife". But it is unlikely that they will do it IMHO. There will be many problems with strength and hydrodynamics.
    1. StolzSS
      StolzSS 10 July 2013 11: 44 New
      +4
      We solve technical problems))) But the main purpose of this child prodigy drank babos))) Although if they do it anyway they won’t build much, they can save a series of pieces 50-60 and they won’t be able to save ala f-35 current in boats)))
  5. Kir
    Kir 10 July 2013 16: 30 New
    +1
    I can’t stop being amazed at the “creative genius” of minke whales, it seems that the most important thing is to get into the book of records, but how, yes, at least (I ask for the expression) many times with a bare ass on a hedgehog, it’s even better to get a patent, or find a sponsor for this same “unaware of analogues in world history project ", and then" force majeure "throw ....
  6. Simple
    Simple 10 July 2013 18: 36 New
    +2
    "In the aft aft part of the hull there is a runway capable of accepting an AH-1 / UH-1 class helicopter"

    The pilot of the "AH-1 / UH-1 class helicopter" will probably get a lot of adrenaline when landing on this boat.
  7. old man54
    old man54 10 July 2013 22: 01 New
    -1
    the whole concept and possible technical solutions are very interesting !!! But here is the financial side of this issue? bully
    I really liked the article, thanks, a lot of new, a little cheers-patriotism, the author of the "+"!
    And now I have my own question. to backfill, so to speak! And where are they going to land all the landings, eh? Moreover, on the coast, de might be organized strong fire resistance to the landing, and ??? What do you think? drinks laughing
    1. Genera
      Genera 11 July 2013 04: 43 New
      0
      old man 54. so it’s laid out then it is planned far into the sea, beyond the horizon, at a distance of 100 miles! Is it really not clear written !? Well, you have questions. I wrote that they won’t even have time to decompose, and even if they decompose as you expect 100 miles to the landing point, so long as they sail back to the floor they will not form out of a hail of shells, but on the waves, given the modularity of the structure. And you generally imagine what 100-200 miles is. Given the speed of 19 knots, he will overcome 100 miles to the shore in 3-3 / 5 hours. High-speed landing is obtained. And judging by the sketches of the landing, all this time it will stand upright in constrained conditions - this is likely so that the landing, when it runs ashore, does not feel pain from the bullets piercing it (i.e., when the body flows into it, then the needles prick up the horror is not pleasant, it usually happens when you sit on the jerk) I present a picture of such a landing, a parody of the film "Saving Private Raina." Only in the original film did the Germans shoot machine guns, and in a parody it would be enough to be felt boots like a grandfather from a cartoon about the Red, red-haired cauliflower ....
      1. old man54
        old man54 11 July 2013 21: 12 New
        0
        Quote: Genera
        I wrote that they won’t even have time to decompose, and even if they decompose as you expect for 100 miles to the point of disembarkation, so long as they float half way back they will not form from a hail of shells, but on the waves, given the modularity of the structure.

        Justify why it does not have time to decompose after it enters the water from a carrier ship in the open sea at 100 miles from the enemy coast ?? I quite admit the opposite.
        And why should it be inapplicable on the wave. Why is that?? bully They will probably calculate everything as it should and make it based on some kind of storm points. MBK does not open its gates with a front opening ramp into the curtains, or how ??
        And you generally imagine what 100-200 miles are.

        I imagine it quite vividly! Do not even believe how. laughing And 100 miles is 185 kilometers and 200 meters.
        Given the speed at 19 knots, he will land 100 miles to the coast in 3-3 / 5 hours

        Well, actually a little more than 5 hours will go if the speed is constant in 19 nodes.
  8. self-propelled
    self-propelled 10 July 2013 22: 44 New
    0
    another wunderwaffle from the Yuserites. well, freedom-lovers and shit-democrats fall in love with all kinds of fiction. well, good luck to them. I hope for the next "shnyazhka" the Russian leadership will not behave (in the sense of "catching up and overtaking")
    1. castle
      castle 10 July 2013 23: 06 New
      +1
      Write the truth! Lived well in the caves! Why come up with a new one? And then the inventors got divorced, they don’t give a nap for vodka in the country.
      1. self-propelled
        self-propelled 10 July 2013 23: 45 New
        0
        Quote: hrad
        Why come up with a new one? And then the inventors got divorced, they don’t give a nap for vodka in the country.

        why so. you only need to THINK, not to THINK. I propose to recall the well-known SOI (Strategic Defense Initiative) program for many - when, supposedly, the United States planned to create a large group of space satellite interceptors to destroy Soviet ballistic missiles (heard of such a project?). in the end, it turned out to be a child prodigy (it’s easier to say “disinformation”), created in order to draw the Union into the next round of the arms race (or rather to spray funds allocated for defense to reciprocal projects) ... request
        you can bring a more mundane project - the combat expeditionary vehicle EFV.

        a project for which almost 1 billion dollars were swelled (EFV development began in the middle of 1996 year. Almost 217 million dollars was allocated for the creation of three prototypes of General Dynamics (in 2001, a new contract was signed to create 9 prototypes of EFV BTRs - the cost of the contract more than 700 million dollars). Following the plans of the military command, 935 armored personnel carriers and 78 KShM were to be serially produced. As a result, this project was abandoned ... request
        the price of the development and production of "super invisible" B-2 voice?

        or google yourself in the net? the project paid off?
        and there are enough such "prodigies".
        I will repeat THINKING FOR THE PROSPECTS it is necessary, but not to THINK ... the time of hypersonic interplanetary spacecraft has not yet arrived. I hope you understand what I mean hi
        1. Misantrop
          Misantrop 11 July 2013 00: 27 New
          0
          Quote: self-propelled
          I propose that many recall the well-known SOI (Strategic Defense Initiative) program - when, supposedly, the United States planned to create a large group of space satellite interceptors to destroy Soviet ballistic missiles (heard of such a project?)
          Yes, not "supposedly", but really planned. But only at that time the USSR beat them beautifully. Forces of the NSR depicted the "asymmetric response" from improvised means, I saw this miracle in Severodvinsk good Simple, inexpensive and absolutely fatal for SDI forces. The idea is simple to genius. They took a pair of 667A with missile blocks cut out (then there were a lot of them on the Zvezdochka), drove to the side and depicted overturning activity on remaking them. And ... leaked information about it in the USA. The fact that rocket blocks for the simplest single-stage rocket will be welded without any means of navigation and control, only an automatic elevator to provide detonation. And with hefty warheads. Filling - something like TNT in half with chopped nails wassat That is, in the event of a threat, the missiles stupidly start and ... they sweep away ALL that everything is there from ALL orbits. But we, as a last resort, will do without satellites, not for the first time ... laughing
          1. old man54
            old man54 11 July 2013 00: 55 New
            0
            Quote: Misantrop
            Yes, not "supposedly", but really planned. But only at that time the USSR beat them beautifully. laughing

            beautiful idea, have not heard about this before! It’s just not entirely clear why it’s necessary to use nuclear submarines for “such” missiles, it’s even simpler than a ground-based, shaftless launch, such as the P-12.
            Today, such a wiring does not already occur, a strong FBI (KGB) is needed, political will! And today there are 50% spies from Russian residents. Yes, and I doubt that it was because of our "idea" that they closed the SDI, this is already a joke of ours, they just haven’t pulled it technically, in general, and still haven’t pulled it, I’m sure!
            1. Misantrop
              Misantrop 11 July 2013 01: 06 New
              0
              Quote: old man54
              It’s just not entirely clear why it’s necessary to use the nuclear submarines for “such” missiles, it’s also simpler than a ground-based, shaftless launch, such as the R-12.

              So I say, from improvised means blinded. And then the Americans were VERY closely watching the products of the NSR. And all that they did was perceived seriously. IMHO desu so merge was easier. I remember, then I also laughed for a long time laughing
          2. self-propelled
            self-propelled 11 July 2013 08: 35 New
            +1
            Quote: Misantrop
            Yes, not "supposedly", but really planned

            the fact of the matter is that in the USA they did not plan to build SDI. it was originally a des request
        2. old man54
          old man54 11 July 2013 01: 05 New
          0
          Quote: self-propelled
          THINKING FOR THE OUTLOOK is necessary, but not THINKING ... the time of hypersonic interplanetary spacecraft has not yet arrived. I hope you understand what I mean hi

          but we, their time, it seems very scared! And they, as always, really believed us! bully After the Second World War, Stalin had a project, quite real, a project to create a military base on the moon, so that the whole Earth would be kept at gunpoint from there! How do you like it? laughing drinks Then we flew so vividly into Space the 1s, gathered up on the Moon, began to plan stations inhabited there and so on. Amer seems to have learned this over time, and so it began to smell bad in the oval office of the White House, well, just like in a cheap station toilet! wassat So they wildly accelerated, about the moon. But ... this is another story, why there are still neither our (Russian) nor Amerov bases there! good
  9. castle
    castle 10 July 2013 22: 57 New
    0
    And this is almost like: "where are they going to drop the Airborne Forces?" Aircraft are shot down, and almost cardboard BMDs are made for which fight? And here today I read http://izvestia.ru/news/553409 "The Ministry of Industry for 285 million will find out why Russian planes are worse than foreign ones." Generally ohrenyatina. Yeah, guys, the old story is right about how when the Lord God makes a person, he takes 100 percent of the material and the more this material is used by the muscles, the less remains for the intellect.
  10. castle
    castle 11 July 2013 00: 48 New
    0
    You're right. But you also understand that disinformation is one of the components of a struggle (or war) with an adversary or potential adversary. And if the country's leadership makes decisions based on someone else’s misinformation, then a lot of questions arise about the competence of this leadership.
  11. castle
    castle 11 July 2013 00: 55 New
    0
    I don’t quite understand what principle or criteria here are used to distribute minuses. Maybe someone intelligibly and wisely explain.
  12. _KM_
    _KM_ 11 July 2013 12: 16 New
    0
    Foldable design is always an increase in complexity, weight and price. The long thin bow of a landing boat, which leans up, is contrary to the operating conditions. And the power of the folding and unfolding drives is huge. It is necessary to fold a long, durable nose and ensure its tightness. Isn't it easier to use catamaran / trimaran contours and hydrofoils?