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Description

A Comparison between different variants and derivatives of the Amagi class battlecruisers/fast battleships. Althought built as a small Treaty-complied battlecruisers to bypass the new revised Shanxi Naval Treaty, in many respects these ships were fast battleships rather than cruisers of any sort. They were as well armored and had dreadnought-grade drive core and shielding and had better gun emplacement than the previous John A Warden class.

--Terran Federation - TFS Amagi - Lead ship of the class/Baseline variant--
The Amagi-class battlecruisers (天城型巡洋戦s艦 Amagi-gata jun'yō-senkan) is a series of twelve limited production battlecruisers (later was redesigned as Fast BB) built for the Terran Federation Space Fleet as part of the 2662 Fleet Expansion Program to replace the previous ship losses in the Thir Bug War.
Armed with a main battery of eight 51cm MACs and possessing thrust acceleration of 770.5G, the Amagi class were intended to be the Terran equivalents to the Petolemaic Fon'tek class Dreadnought Battleships. In addition to this, they were also the first dreadnoughts of Terran design to be classified as Fast Battleships , built to match with the new dreadnought battleships built by foreign navies.
Despite being outmatched by larger super-dreadnoughts of Turian and Asari navies in protection, the Amagi class is superior to these ships in mobility and firepower.

--Terran Federation - TFS Kongo - Modified high-speed battlecruiser variant--
Originally laid down as part of the Amagi class Battlecruisers for the Federation Fleet during the 2660 Modernization Plan, the Kongo class would have consisted of a quartet of four Battlecruisers, Kongo, Hiei, Haruna and Kirishima. However after a reassessment made by the Fleet regarding the Amagi designs following the commissioning of the T.F.S Takao, extensive changes were made to the next four ships and the final batch of four incomplete Amagi hulls, consisted of the Yoshino, Mikasa, Tsukuba and Ibuki.
The Kongo achieved a significant increase in mobility and maneuverability compared to the already mobile baseline Amagi Battlecruisers. Its hull is noted to have lighter constrution and significant mass reduction compared to its peers. To improve the maneuverability of the ship, the ship's primary fire control system was further simplified and the spaceframe had additional weight-saving measures incorporated. Other modifications include the removal of eight triple gun turrets inplace of sixteen QF 100mm laser turrets and the relocations of the side mounted torpedo tubes.
Compared to the baseline Amagi, the Kongo required 25% less time to complete a 180 deg turn, although the ship dropped speed significantly faster than the Amagi in a sharp turn due to its lengthened size at 640m. Protection-wise, the ship has reduced belt-armor thickness which would further tapered to cover a wider section of its sides, also in favor of a stronger frontal defense, the bow was reinforced with additional anti-laser coating and angled for better deflections against DEWs.
However, this would proved to be an obstacle for these vessels as the significant reduction in armor mass meant they are less likely gonna survive a hit that a normally robust-constructed Amagi which not only would have survive, but only sustaining heavy damage in worst case scenario. Subsequent ships have additional layers of anti-laser coatings to improve their survivability but it still raised concerns among Federation engineers whether it is worth it to sacrifice the durability of the ship in favor of a higher degree of mobility.

--Terran Federation - TFS Saint Andrew - Simplified mass production fast battleship variant--
The St. Andrew class was ordered in the early 2665 as a result for the search for a new Federation Mass-Production Fast Battleship design. As the previous John A Warden class Battlecruisers had already show their age, the demands for faster and bigger capital ship designs did not begin until the start of the First Batarian War.
Its main battery module and more sleek design used the technology and design philosophies previously applied to the Amagi class Battlecruisers. The St. Andrew is clearly an attempt by the Federation to apply the new technologies on the Amagi class but on a more simplified level and at a much lower cost for a mass production ship.
The St. Andrew carried the same 8 guns layout like Amagi, but its physical armor scheme is more compact and better distributed to maximize the sub-divided compartments for better redundancy. The four stacked engines arrangement also represents a new shift in Federation battleship doctrines of the post Bug Wars era, from the more massive Star Battleship doctrines to smaller sized vessels with higher degree of mobility and firepower.
The ship could carry approx. 22 support crafts in its dorsal hangar module, with a built-in maintenance facilities and runways placed in an enclosed hangar layout. While such layout is more vulnerable to a well placed shot, numerous counter-measures have been devised. In case when such situation ever occur, the explosions can be vented through the radiators placed across the hangar module, or the entire hangar module can be ejected away, thus reducing damages to the ship.

Made for L4ofthewest Starships Troopers x Mass Effect crossover fic.

Current story arc can be viewed here:
FF link:www.fanfiction.net/s/12368590/…
AH link: www.alternatehistory.com/forum…

Description

A Comparison between different variants and derivatives of the Amagi class battlecruisers/fast battleships. Althought built as a small Treaty-complied battlecruisers to bypass the new revised Shanxi Naval Treaty, in many respects these ships were fast battleships rather than cruisers of any sort. They were as well armored and had dreadnought-grade drive core and shielding and had better gun emplacement than the previous John A Warden class.

--Terran Federation - TFS Amagi - Lead ship of the class/Baseline variant--
The Amagi-class battlecruisers (天城型巡洋戦s艦 Amagi-gata jun'yō-senkan) is a series of twelve limited production battlecruisers (later was redesigned as Fast BB) built for the Terran Federation Space Fleet as part of the 2662 Fleet Expansion Program to replace the previous ship losses in the Thir Bug War.
Armed with a main battery of eight 51cm MACs and possessing thrust acceleration of 770.5G, the Amagi class were intended to be the Terran equivalents to the Petolemaic Fon'tek class Dreadnought Battleships. In addition to this, they were also the first dreadnoughts of Terran design to be classified as Fast Battleships , built to match with the new dreadnought battleships built by foreign navies.
Despite being outmatched by larger super-dreadnoughts of Turian and Asari navies in protection, the Amagi class is superior to these ships in mobility and firepower.

--Terran Federation - TFS Kongo - Modified high-speed battlecruiser variant--
Originally laid down as part of the Amagi class Battlecruisers for the Federation Fleet during the 2660 Modernization Plan, the Kongo class would have consisted of a quartet of four Battlecruisers, Kongo, Hiei, Haruna and Kirishima. However after a reassessment made by the Fleet regarding the Amagi designs following the commissioning of the T.F.S Takao, extensive changes were made to the next four ships and the final batch of four incomplete Amagi hulls, consisted of the Yoshino, Mikasa, Tsukuba and Ibuki.
The Kongo achieved a significant increase in mobility and maneuverability compared to the already mobile baseline Amagi Battlecruisers. Its hull is noted to have lighter constrution and significant mass reduction compared to its peers. To improve the maneuverability of the ship, the ship's primary fire control system was further simplified and the spaceframe had additional weight-saving measures incorporated. Other modifications include the removal of eight triple gun turrets inplace of sixteen QF 100mm laser turrets and the relocations of the side mounted torpedo tubes.
Compared to the baseline Amagi, the Kongo required 25% less time to complete a 180 deg turn, although the ship dropped speed significantly faster than the Amagi in a sharp turn due to its lengthened size at 640m. Protection-wise, the ship has reduced belt-armor thickness which would further tapered to cover a wider section of its sides, also in favor of a stronger frontal defense, the bow was reinforced with additional anti-laser coating and angled for better deflections against DEWs.
However, this would proved to be an obstacle for these vessels as the significant reduction in armor mass meant they are less likely gonna survive a hit that a normally robust-constructed Amagi which not only would have survive, but only sustaining heavy damage in worst case scenario. Subsequent ships have additional layers of anti-laser coatings to improve their survivability but it still raised concerns among Federation engineers whether it is worth it to sacrifice the durability of the ship in favor of a higher degree of mobility.

--Terran Federation - TFS Saint Andrew - Simplified mass production fast battleship variant--
The St. Andrew class was ordered in the early 2665 as a result for the search for a new Federation Mass-Production Fast Battleship design. As the previous John A Warden class Battlecruisers had already show their age, the demands for faster and bigger capital ship designs did not begin until the start of the First Batarian War.
Its main battery module and more sleek design used the technology and design philosophies previously applied to the Amagi class Battlecruisers. The St. Andrew is clearly an attempt by the Federation to apply the new technologies on the Amagi class but on a more simplified level and at a much lower cost for a mass production ship.
The St. Andrew carried the same 8 guns layout like Amagi, but its physical armor scheme is more compact and better distributed to maximize the sub-divided compartments for better redundancy. The four stacked engines arrangement also represents a new shift in Federation battleship doctrines of the post Bug Wars era, from the more massive Star Battleship doctrines to smaller sized vessels with higher degree of mobility and firepower.
The ship could carry approx. 22 support crafts in its dorsal hangar module, with a built-in maintenance facilities and runways placed in an enclosed hangar layout. While such layout is more vulnerable to a well placed shot, numerous counter-measures have been devised. In case when such situation ever occur, the explosions can be vented through the radiators placed across the hangar module, or the entire hangar module can be ejected away, thus reducing damages to the ship.

Made for L4ofthewest Starships Troopers x Mass Effect crossover fic.

Current story arc can be viewed here:
FF link:www.fanfiction.net/s/12368590/…
AH link: www.alternatehistory.com/forum…