Editing Imperial Navy (section)

=== [[Imperial Navy Battlecruiser|Battlecruiser]] ===

What do you do when you forget how to maintain an entire category of heavy warships? You build a new bunch of heavy warships, with simpler technology.

Battlecruisers are basically upgunned cruisers, with more weapons (usually adding dorsal weapons and some armor), and are intended to fill the gap between true battleships, which are rare, and normal cruisers, which tend to die really easily to the ancient Chaos cruisers and grand cruisers. Battle cruisers were tried in real life as some way to combine battleship firepower or armor with the speed of a cruiser. They did not, frankly, work well and much like reality these things have their share of problems. Chaos operates their own versions known as Heavy Cruisers. In real life, the accepted successful form of a battlecruiser is between a heavy cruiser and a battleship; it can kill anything it can catch and it can outrun anything that can kill it (usually only an enemy battleship). After its teething years it was generally a good and effective form of combat when used intelligently. Then the navies trying them realized they had basically made a battleship and it fell out of use again. Why build a ship with the speed, only a slightly lower firepower and roughly equal armor to a battleship when you can fork out a few bucks more and build an actual battleship? Exactly.
*'''Basic:'''
**'''Armageddon Battlecruiser:''' An upgraded variant of the Lunar Class Cruiser (YAY! ANOTHER ONE!). A rather new innovation, the Armageddon class is basically made up from recovered Lunar Class Hulks that have been extensively repaired and then retrofitted with more armour and more weapons. The base hull was never designed to cope with all this extra equipment (and the extra crew to man said equipment) and so it has problems operating independently for long periods of time. This isn’t really a problem, though, since they wouldn’t be operating away from a fleet anyway. Though reinforcing its frame to handle the added mass would be a smart thing to do to save immensely in future maintenace costs over the centuries. Battlefleets won't say no to them because more guns = better! These ships are extremely powerful and live up to their name. Somehow, though, the Imperium never went “Hey guys, this thing kicks the shit out of everyone, let’s upgrade all Lunar-class ships to Armageddon-class and make a new class to accomodate the new crew and equipment.” Or someone did and was turned into a servitor...
**'''Hellfire Heavy Cruiser:''' An upgunned Murder-class. Has the same issues as the Armageddon, slow as fuck and has power and supply issues. [[What|Also, lacks Void Shields]]. Most mutinied and joined Chaos, which decided to use them for some reason.
*'''Ordnance-boat:'''
**'''Overlord Battlecruiser:''' The Classic Imperial Battlecruiser. Using the standard Imperial doctrine of - Macrobatteries, Lances and Torpedoes, the Overlord has become the most effective Battlecruiser simply because it really complements standard Imperial Navy Tactics. As an added bonus, its simplicity of design makes it easier to produce and one can be built within a decade. The only negative (if you can call it a negative), is that it's not really useful for anything except war.
**'''Chalice Battlecruiser:''' A fast heavy cruiser. Unique to the Calixis sector and an exceedingly new design, the Chalice was conceived as a Battlecruiser that could either out-run or out-manoeuvre anything it can't kill. Which means it was conceived to be a plain ‘ol normal battlecruiser. Whilst good in theory, unfortunately, speed came at the cost of armour and durability and so whilst these vessels punch hard, they can't take as many hits as other cruisers. Which is fine since battlecruisers as a concept are meant for slaughtering escorts in real life not fighting other capital ships. In addition, it carries an experimental plasma drive layout, which while boosting power efficiency, also makes it rather vulnerable to lighting up like a roman candle. Imperial Propaganda is currently trying to cover up their failings and is lauding them as the Poster-ships of the Calixis Sector and therefore a lot of people think they're the 'Best Battlecruisers Eva!'. If they would just use a normal plasma drive and make the whole ship bigger, it would be fast enough, armored enough, and even better armed (or just change the drive). Unfortunately, not being stupid is heresy in Calixis.
***The idea of a ship that can "either out-run or out-manoeuvre anything it can't kill" that turns out to be really poor at taking hits was the original design of real life Battlecruisers, which although being up-gunned Cruisers (<s>which are the equivalent of Frigates IRL, not Ships of the Line</s> cruisers are the lowest level of capital ship types, you’re thinking of the WW2 destroyers), were used as discount Battleships at Jutland were they turned out to lack the armour required for a proper fight. Thus, if the Imperials were smart, they would be using the Chalice as a commerce raider, not a ship of the line Or use it to rip up escorts and light cruisers and then run away and hit somewhere else in the battle before they can be overwhelmed by an enemy cruiser.
**** Actually, they were not bad at taking hits, they were better at it than heavy cruisers. They just sucked at taking hits from battleships like everybody else on the planet. Real life battlecruisers (after their early screw up designs) were made only a little smaller than battleships which allowed them to have greater armor and firepower and speed than heavy cruisers and were even fast enough to outrun battleships at the cost of significantly lower firepower and armor than the only slightly larger battleships (which caused things like the Jutland kablooie). They had the whole package. So, imagine an Invincible-class but give it a heavy cruiser’s firepower and use the saved weight to give it proper battleship level armor. In reality, the larger the ship the faster it is in navies (broadly speaking, in dense fluids the longer the vehicle is relative to its cross-section, the easier it is to go fast (and the larger the engine by even a little makes far more power)), sci-fi just is made by ignorrants. Battlecruisers fell out of favor shortly after they were perfected for the same reason battleships and heavy cruisers did: the carrier. That isn’t quite accurate. Light cruisers stopped being made because anti-air destroyers grew large enough to do the same job (or you could see it as light cruisers being renamed “destroyers” and actual destroyers being phased out by them, but there were also AA cruisers which was probably not fun to fly against) though when light cruisers were first invented they were just stop-gaps but the name returned to use for normal cruisers due to the invention of heavy cruisers and heavy cruises became known just as “cruisers”, battleships stopped being made, battlecruisers were perfected by making them so big, armored, and armed that they were battleships by another name and so the name “battlecruiser” was dropped as meaningless by that point. That said, they were indeed usually used as commerce raiders. But that is true for all ships. Navies exist to destroy enemy commerce shipping and to transport armies. The only reason fleets engage each other is because both sides defend their own shipping and seek out enemy fleets to pre-emptively destroy to protect said shipping and transports. In 40k, it could be said that the Invincible-class is the closest thing the Imperium has to an equivalent to a real life battlecruiser.
**'''Long Serpent Battlecruiser:''' A true success story, this is what the ''Chalice'' wishes it was. Taking a battlecruiser's armour and firepower, and giving it the engine suite of a battleship, this thing can kick the shit out of anything short of a grand cruiser or battleship, while being able to keep up with raiders. It's only real flaw is that when one is taken out, it has a better than average chance of rupturing its warp drive. As a result, the names of ''Long Serpents'' that have been destroyed are usually accompanied by those of allied ships that were too close. Which is somewhat odd since the reasoning is that the Long Serpent also has a battleship's warp core (who knows why, it isn't big enough to need it). Given the small difference in size between this ship and other "normal" cruisers which are the mainstays of the fleet, the Imperium could just choose to use a smaller warp core suitable for this ship's size and focus on mass-producing the Long Serpent to replace basically every other class of ship except battleships , Cobras, and carriers. Fewer would be made but, unlike video games, swarming a capital ship with escorts does not work at all. The escorts are slaughtered and the capital ship like this one is left unharmed. (<s>There are plenty of instances both in 40k and irl of large capital class ships being overwhelmed by smaller, faster vessels due to being caught without support.</s> Actually that is when they’re spamming torpedoes. All non-Imperial navies do not do that (the closest being Chaos but even they don’t use torpedoes nearly as much), although swarms of Firestorms could carve up large ships, the shields prevent this without much larger supporting vessels. Swarms of Cobras and Vipers could do it, but few would survive the attempt, not that any admiral cares about that...until the tech-priests tell them they won’t have a Navy for the few centuries it takes to replace so many ships regardless of size) But doing this would require common sense, which is [[Heresy]]. Like properly using the Invincible-class must be.
**'''Mercury Battlecruiser:''' Another fast Battlecruiser. It's a cruiser with a Battleships's engines. Nothing more.
**'''Hades Heavy Cruiser:''' A long-ranged brawler. Carries Broadside Macrobatteries and Dorsal and Prow Lances. Got phased out like most keel-built designs, but Chaos still uses them.
*'''Lance-boats:'''
**'''Acheron Heavy Cruiser:''' Designed to test new Lances and Macrobatteries. The Imperials only built one, which went traitor. Carries Broadside and Dorsal Lances with Prow Macrobatteries.
*'''Carriers:'''
**'''Mars Battlecruiser:''' In a word - Mediocre. Some Imperials say it's versatile due to its diverse weapons loadout but in reality it makes it an awkward duckling to use. The Nova Cannon and Launch bays would be good on a ship holding back and harassing enemies at range and yet it has Macrobatteries and Lances which are great for brawling. So if you sit back and harass or go in and brawl, you're wasting half your ship. The Imperial Navy never really got on with it either and so it has gone out of production on most Forge-Worlds. Which is a shame because if they would replace the macrobatteries and lances with larger, long-range lances, and a great number of small, short range weapons batteries for fighter support and self-defense respectively, this would be a great ship in any fleet. It's nova cannon clears a hole in the enemy escort screen, the attack craft rush through to wreck the weapons and engines of light capital ships while long-range lances assist other Imperial ships in slaughtering targets of opportunity. The destroyed enemy light capital ships leaves all the other big ships vulnerable to mass, concentrated torpedo attack from friendly ships. Attack craft return to the fight to tear up the no-doubt seriously damaged enemy big ships and lances win the day. Then just send in friendly light capital ships with attack craft support to finish off the surviving escorts. That would almost make this ship into a sort of miniature "I Win" button. Almost. Especially in a squadron of two, as they could assist each other against any opponents that slip through to them with their combined, close-range firepower, lances, and whatever attack craft they kept back for defense ripping the enemy weapons and engines apart to let the close-range macrobatteries have fun.
**'''Dominion Battlecruiser:''' Basically a fixed Mars, some tech priest got it in their head that, maybe, it'd make more sense to replace the Macrobatteries with Lance Batteries instead, making it a dedicated support ship, harrassing enemy ships at range whilst the big guns go out and fight. Apparently not that successful, a number were used at the Battle for Maccrage (Of course the fucking Smurfs get them) against the tyranids, though apparently they all got fucked up and have been in drydock since, which is why up until now no-one's seen them.
**'''Styx Heavy Cruiser:''' A pure carrier. Has Broadside Launch Bays, Dorsal Lances and and Prow Macrobatteries. For some reason the Imperial phased it out for the Mars, so only Chaos uses them now.
**'''Hecate Heavy Cruiser:''' An attempt to replace the Styx. Swaps out some of the Launch Bays for Macrobatteries. Believed to have an inherent design flaw that made them go traitor, so they were decommissioned.