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desertmole

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Monday, July 14th 2003, 8:07pm

Don't Forget to Guard Your Coasts!

Coast Artillery is vital if you want to guard your coasts. For the US and its possessions, the Army Coast Artillery Corps, and later the Marines as well, provided coastal defense.

Weapons took a couple of different forms. There were fixed, rail and mobile guns. Fixed sites included both Army designs and remounted naval guns. The Army also used 12" mortars, so that they could be better protected from ships guns, and at the same time provide plunging fire that could penetrate the deck armor of all but the heaviest ships.

Railroad guns ran from 6" up to 16" in caliber. Mobile guns were smaller, and usually mounted on wheels or caterpiller treads, and towed by trucks or tractors.

One oddball was FT Drum, AKA the Concrete Battleship. She was built on an island at the mouth of Manila Bay. She mounted 4-12" guns in two turrets and had 6" and AA guns as well.

Harbor defenses were seldom put to the test. Most of those that were defeated were done so by land forces that flanked them (like FT Drum and Corregidor). A well-protected harbor will keep your fleet safe and snug - as long as you keep your guard up.

HoOmAn

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2

Monday, July 14th 2003, 8:14pm

Sure

You´re right of course and some of us have already posted some informations about their coastal defence.

On the other hand this is not a full-size SIM where we really battle each us - at least not in detail - because we have no real moderator or judge at hand that can act as a referee and there are also no rules how to battle each other.

So this is mainly about ship design. We want to find out how we influence each other with out building programs.

Everything else is for fun, backgroundstory and to get a good (and hopefully realistic) picture only.

Maybe some of us will post more on land and coastal defence once everything else is settled down... :o)

Thanks for the input,

HoOmAn

3

Monday, July 14th 2003, 8:36pm

Coast defenses

I've remarked that some very effective 12" and 9.45" turrets/guns from the French Danton class predreads are going into coast defense installations at Beiruit, Tunis, and Oran. When France gets around to designing a 15" gun, it will enter service as coast artillery first.

And I recall that the Russian Empire started the 2 twin 12" turret installations that became Battery Maksim Gorkii I and II near Sevastopol in 1917.

Kronshtadt/Leningrad had some <serious> coast artillery (10x12", 4x14", and 1x16") in WWII. Both Russia and France plan to utilize turrets from scrapped ships as coast artillery, and to mount some individual guns on railroad mounts.

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4

Monday, July 14th 2003, 8:42pm

Now that you mentioned that...

Japan was constructing the BBs Kaga and Tosa. They are, of course, now being converted to Carriers. That does leave me with sixteen 16.1 inch guns. Originally I thought about breaking open the walls of numerous castles (including the one at Edo and the Imperial Palace at Kyoto) and put those guns in there as some sort of huge wall ornament (will it fit ? I don't really know).

... but using them as coastal artillery is not a bad idea.

Walter

5

Tuesday, July 15th 2003, 12:40am

Historically coastal defense has been a task for the Coastal Fleet. The task is sought solved in a number of ways.

Prominent among these are coast-defense armourclads, of which ten remain in service, with probably three of these destined to be removed from service under the treaty (data on the Nordmark coast-defense armourclads). These armourclads are of a typical Scandinavian type, being essentially scaled-down pre-dreads. These are supported by smallish coastal armoured cruisers (armed with 5.9inch guns), as well, as some scout cruisers, backed up with destroyers and torpedoboats.

These armourclads are complimented by coastal artillery forts protecting a number of significant sites. Coastal artillery uses guns of a number of sizes, from small 1.85inch QF-guns to (so far) 11.1inch rifles and howitsers. Recent emplacements have been seen to favour enclosed turrets for heavy guns, with those for regular rifles being identical to those carried by ships. Medium and heavy guns installed since 1900 include the following calibres: 4.3inc/11cm; 5.9inch/11cm; 8.2inch/21cm; 9.4inch/24cm; and 11.1inch/28cm, reflecting the calibres of guns used on ships in the Coastal Fleet.

It was until recently the intention to phase out the 8.2inch guns in favour of 9.4inch guns and howitsers, but with the recent naval treaty, the days of the 9.4inch guns seem doomed, while 8.2inch guns will be developed further; this is in order to increase navy-wide weapons commonality. Turrets tend to be single-gun turrets, withr elatively high elevation; a good number of the 8.2inch, 9.4inch, and 11.1inch mounts are howisers, and very often they are placed so that they fire indirectly (with any return-fire by necessity being indirect as well, greatly favouring the forts). The forts also enjoy a number of minelayers, and generally tend to have at least one torpedo-battery; recently constructed batteries will us 21inch/53.3cm torpedoes.

There are no railway-guns, as this is not considered to be of much use for coastal defense.

The navy in general has so far not had an integral naval infantry, arming sailors if and when necessary. The Coastal Fleet, however, has since its inception included in its organisation units of infantry carried on the vessels. The tasks of the Coastal Fleet include defense against naval invasion near the coast, and support of army-units. It thus makes sense to carry these units of infantry, both to provide immediate infantry-defense against invasion, and to provide immediate support for the army-units it supports.

Such units are also provided to the fortresses (forts are organised in fortresses, each of which has a tasked area - the defence of Oslofjord is divided in Outer Oslofjord Fortress, and Oscarsborg Fortress, for instance) - in wartime at minimum a battalion to each fortress, though in peacetime a cadre of no more than one company (often less - Outer Oslofjord and Oscarsborg fortresses between them have the equivalent of one company and one platoon total as their peacetime cadre, for instance)is maintained to each fortress.

The role of the units assigned to the fortresses is clear enough - the prevent the fortresses from being captured by land-attack. It is common that coastal forts are surrounded by strongpoints to their land-side - bunkers, blockhouses, and similar. Battalions tend to be equipped with mountain-howitsers (which can be packed in loads small enough to be manportable) and mortars, as well as machine-guns.

Plans are unfolding to enlarge the Coastal Fleet infantry-organisation, and apply it to the entire navy, including the battle-line. It is thought possible to embark an entire company of naval infantry; in addition more battalions will be created, to be used in situations where this is required. These will remain light infantry, not entirely dissimilar to the British model.

The naval infantry is termed Kystjeger (rough translation being Coastal Ranger); they use navy commissioned ranks and parade-uniforms, but the battle-uniforms introduced 1915 are more like those of the army; distinctions retain a naval flair, nonetheless, and non-commissioned ranks are still entirely naval.