Code Geass Fanon Wiki
Disclaimer: This article, City Class Air Destroyer (Divergence Point), does show a non-canon fanfiction version of the canon Britannian Caerleon Class Airship design from the anime show Code Geass. It is also property of its author, deathzealotzero. So please do not try to edit it or change anything with it. Thank you. 

"The City Class, its number of different subclasses, and other such variants have been silent guardian angels of the Britannian homeland for over a decade. With their silent shadows providing comfort and awe across the entire North America Continent for the people of this great Empire. While at the same time making the enemies of Britannia cautious and always looking up to the skies in nervous anticipation at every large shadow that crosses their paths. Now with the new Caerleon Subclass and its many improvements to the overall design, our enemies across the large oceans of Earth will now have the pleasure of facing our silent guardian angels of the sky..."
―- Taken from a Speech done by Baron Arthur Harrington, 7th Baron of Harrington, CEO of Douglas Airship Yards

The City Class Air Destroyer, its numerous subclasses and variant designs, is the primary combat airship of the Holy Empire of Britannia's Royal Air Force and its awe-inspiring Air Fleets . The City Class, or sometimes known as the Escort Class Airship is a small lightweight combat airship design that is similar in weight and mission type as a typical frigate type naval warship of most Navies in the world including the Royal Britannian Navy, the ocean-bound counterpart to the RAF's own Air Fleets. Overall, the Holy Empire of Britannia, and its primary airship manufacture Douglas Airship Yards have produced somewhere around three hundred of these small and quick Float Unit Capable Airships across the decade of its service life, through four different subclasses and several different variant designs.


The City Class Air Destroyer sports a slim and rounded hull design that looks different yet still a bit similar to notable naval ship design. By looking different it does possess the large stacked double-hull like engine section that contains the ship's Float System and the Secondary Float System, along with the short winglets on either side of the hull which does give the appearance of a large aircraft complete with ailerons and flaps built into the winglets of the design. That allows an easier time maneuvering the airship in the air in conjunction with the ship's gravity-defying Float System. Meanwhile, the hull looks somewhat similar to a naval hull just with a slight difference that comes from it being an airship, that flies through the air and not cutting through the water like a navy ship. Then there is the central lengthy catapult that allows a dozen combat VTOLs to be launched from the ship's small hangar and into combat. This catapult is nearly the length of the ship's main hull which does give it a different feel to any sort of naval ship as it extends the length of the ship dramatically.

Overall, this general appearance of the City Class is retained through the entire class, its four main subclasses and its several different variants. However, what is quite different is the different paint schemes that are used with the class. From the basic dark gray hull color that serves as the main colors for the entire Air Fleet to a dark blue hull color that is used by the ships under the direct control of the Imperial Guard. Then each of the eight main Air Groups of the Air Fleet sport a distinct secondary hull color from a yellow color showing ships operating under the control of the First Air Group to a dark green that serves as the secondary color of the Eighth Air Group. Meanwhile the Imperial Guard sports a darker yellow, almost gold, as its secondary color, and if a City Class ship ship would be under the control of one of the smaller Royal Guard formations this may a dark purple color as a secondary color. Though currently no ship of the class serve under the control of any of the small Royal Guard units that protect the various sub-branches of the overall larger Imperial Family.

Design Overview[]

The City Class Air Destroyer was the first production type of the Fourth Generation Airship design family which was a vast change in direction in airship design. Mainly due to the newly introduced Float System, which replaced the older lighter-than-air way of keeping airships aloft, and moving away from the older blimp-look of airship hull design which greatly remained similar in looks to those First Generation Airships of the First Great War under a century before the introduction of the City Class. This was mainly thanks in part to keeping with the lighter-than-air methods of keeping airships floating in the air needed such an overall blimp-like hull design to actually function. Therefore, with the introduction of the Float System a whole new hull design could be introduced that allow airships to move away from this overall dated design which could include things like dedicated armor panels across its entire hull and a much larger design overall. Hence, designers working for the Douglas Airship Yards in the Duchy of Texas would looked towards future ship designs of the Britannian Royal Navy for much needed inspiration for a new standard looking hull design for the new airships.

A second new technology that would be included in the new fourth generation airship design is a whole new weapon, the hyper-velocity cannon. A technology that long been in development by the Empire and its different research organizations. The City Class Air Destroyer would be the first ever combat platform to carry this new weapon. Overall, the air destroyer would sport five of these weapons placed all around its hull in dedicated turrets that have somewhere around ninety degrees of rotation. Each one fully capable of leveling a couple of small buildings and anything inside of them with just one shot. Combined with the standard Royal Air Force normal airship weapons of dedicated lightweight missile launchers and carrying their own combat VTOL escort craft made an interesting overall combat platform. The latter idea made the City Class a dedicated pocket carrier and allowed it to carry a single squadron of Air Force Combat VTOLs, like the AV-10 Viper, to escort itself while in combat. Something that was carried over from the last Third Generation Airship Design of the Air Force, the Maxson Class Air Escort, though the City Class does not sport the ability of the Maxson to carry a short battalion of deployable combat troops.

The result of this new technology and the overall new standardized design scheme would be the new City Class Air Destroyer which Douglas would start producing in large numbers just in time for 98th Emperor Charles I's brutal expansion policy which would see many of these brand new airships in battles many theaters of war across the planet. However, it would during these battles that more then a few different downsides of the design would become known to the Britannian Royal Air Force. The first of which would be the large batteries the served as the power source for the new fourth generation airship design would cut down the operational range of the City Class drastically. This was a combination of things including the new Float System being quite a power hog, and only a small amount of the ship's tonnage being able to be set aside for the batteries. The second major downside of the new airships would be that they were quite slower then even a typical turbine-powered aircraft. All of which mainly prevented the City Class ships, and its variants, from being used during many of the more distance combat theaters during the 98th Emperor's expansion policy. This included the brief Second Pacific War which had the Empire invading the Japanese islands though a couple of the far larger Duchy Class Air Battleships, thanks to their larger batteries, were able to take part in the final moments of the war. Afterwards, the newly renamed Area 11 and its Garrison Forces would only sport a handful of airships under their control thanks in part to these downsides.

After the City Class was first introduced the Douglas Airship Yards would start to introduce more then one variant designs of the basic design of the larger class. Even with its different downfalls it was still a major step up in airship design that allowed it to be produced in large numbers. The first major variant introduced by Douglas would be the Yukon Class Medium Air Transport which was an unarmed cargo carrying version of the regular City Class Air Destroyer which looked similar to its more combat airship sister design just without the VTOL Catapult. Not to mention sporting much of its interior space now a series of large cargo spaces which allowed the Empire to transport a large amount of cargo across the entire length of the Empire. Far more then even the largest cargo aircraft could carry. Soon afterwards a more militarized version of the Yukon Class, the Yellowstone Class Combat Air Transport would be introduced by Douglas to be used by the Air Force to support its ever expanding Air Fleet. While it looked similar to the Yukon Class the Yellowstone retained a small hangar allowing it to use a couple of auxiliary craft to transport its cargo to other ships or bases. Not to mention sporting half of the City Class CIWS emplacements allowing it to defend itself when needed. Both of these cargo carrying variants of the main class really redefined the Empire's entire transport infrastructure almost overnight replacing Trains, cargo trucks, and large Cargo Aircraft. These cargo carrying airships remain mainly in service even today though with several different improvements to their basic design.

The final major variant design of the City Class would be quite an interesting change in airship design, mainly bringing back an earlier idea about airships. Mainly having them transporting people across long distances. Something that passenger aircraft mainly took over from early First and Second Generation Airships. With the overall new shift in airship design that was the Fourth Generation this idea came back in the minds of some of the Douglas Airship Yards designers. The result of this would be the new Superior Class Air Passenger Transport which can transport around three hundred passengers almost anywhere in the Empire in the matter of days in more comfort then either a passenger train or smaller turbine-powered passenger aircraft. Each ship of this class sported fifty distant sized passenger cabins each one able to hold six passengers in comfortable seats that can straightened out into dedicated beds for those overnight flights. All of which are serviced by twenty-four flight stewards and double that in assistant stewards providing not only basic drink services but meal services to the passengers. After the first ships of this class would be finished by Douglas, a couple more variants of the basic design would be further developed as more ideas were introduced. This would include the Huron Class Air VIP Transport which cut the passenger capacity vastly allowing it to carry sixty passengers in almost sinful comfort, more so then the more basic Superior Class accommodations. Some of these Huron Class would be custom-built by Douglas for the use of dedicated private transports for notable Noble Families. The second minor variant of this passenger transport version of the larger City Class would be the Erie Class Air Passenger Transports which double the number of passengers but tones down the comfort and are mainly in use for more shorter range flights. Though in some areas of the Empire these passenger transports are use in place of the more comfortable Superior Class ships for long distance travel. Overall, these passenger transports have brought the idea of traveling in the sky in airships.

Overall, the City Class Air Destroyer was a design ahead of its time and would allow the Royal Air Force to shine once more after nearly three decades of being downsized in favor of other branches of the Britannian Armed Forces. It also reintroduction the whole idea of the combat airship and would go on to prove the whole idea to the entire world. It also led into the introduction of the far superior fifth generation airship design which solved the majority of the issues with that of the Fourth Generation Airship Design. The City Class would even be refitted with the new tech and such of the Fifth Generation while a new similar-looking replacement design was in the process of being introduced by Douglas. It would be these refitted City Class ships that would become notable in the Second Great War between the Empire and the Europia United Armed Forces with these refitted ships easily crossing the Atlantic Ocean to take the fight to the Europe mainland itself.


System Features[]

Subclasses and Variants[]

Ships of the Line[]

City Class Air Destroyer - Angelus Subclass
Angelus Subclass - Production Block One
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
HMAS Angelus DA001 Decommissioned HMAS Dallas DA002 Decommissioned HMAS Leon DA003 Decommissioned
HMAS Ottawa DA004 Decommissioned HMAS Phoenix DA005 Decommissioned HMAS Monterey DA006 Decommissioned
HMAS Austin DA007 Decommissioned HMAS Colombus DA008 Disarmed Hull Sold HMAS Charlotte DA009 Decommissioned
HMAS Merida DA010 Decommissioned HMAS Seattle DA011 Decommissioned HMAS Detroit DA012 Decommissioned
HMAS Kingston DA013 Decommissioned HMAS Memphis DA014 Decommissioned HMAS Vancouver DA015 Decommissioned
HMAS Portland DA016 Disarmed Hull Sold HMAS Baltimore DA017 Decommissioned HMAS Brampton DA018 Decommissioned
HMAS Hamilton DA019 Decommissioned HMAS Chicago DA020 Disarmed Hull Sold HMAS Havana DA021 Decommissioned
HMAS Philadelphia DA022 Decommissioned HMAS Jasper DA023 Decommissioned HMAS Victoria DA024 Sold
HMAS Durango DA025 Decommissioned HMAS Richmond DA026 Decommissioned HMAS Calgary DA027 Decommissioned
HMAS Jacksonville DA028 Sold HMAS Denver DA029 Scrapping HMAS Boston DA030 Scrapping
HMAS Flagstaff DA031 Scrapping HMAS Reno DA032 Sold HMAS Jamestown DA033 Scrapping
HMAS Lousville DA034 Scrapping HMAS Boulder DA035 Scrapping HMAS Tucson DA036 Scrapping
HMAS Memphis DA037 Scrapping HMAS Raleigh DA038 Scrapping HMAS Brooks DA039 Scrapping
HMAS Bexar DA040 Destroyed HMAS Riverview DA041 Active HMAS Hesperia DA042 Active
HMAS Woodbridge DA043 Active HMAS Gander DA044 Active HMAS Concord DA045 Destroyed
Angelus Subclass - Production Block Two
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
HMAS Cold Lake DA046 Active HMAS Spruce Grove DA047 Active HMAS Newport News DA048 Active
HMAS New Bedford DA049 Active HMAS New Haven DA050 Destroyed HMAS West Hardford DA051 Active
HMAS Las Vegas DA052 Active HMAS Kansas City DA053 Destroyed HMAS Colorado Springs DA054 Active
HMAS Virginia Beach DA055 Destroyed HMAS New Orleans DA056 Active HMAS Santa Anna DA057 Active
HMAS Des Moines DA058 Active HMAS Little Rock DA059 Active HMAS Grand Forks DA060 Active
HMAS Huntington Beach DA061 Bombed/Destroyed HMAS Garden Grove DA062 Destroyed HMAS New London DA063 Active
HMAS Santa Rosa DA064 Active HMAS Penbroke Pines DA065 Active HMAS Grand Rapids DA066 Active
HMAS New Collins DA067 Active HMAS Coral Springs DA068 Active HMAS New Leon DA069 Active
HMAS High Mountain DA070 Destroyed HMAS Palm Bay DA071 Active HMAS High Point DA072 Destroyed
HMAS Costa Mesa DA073 Active HMAS Sandy Spring DA074 Active HMAS Daly City DA075 Destroyed
HMAS Spokane Valley DA076 Active HMAS New Biscay DA077 Active HMAS Red Deer DA078 Active
HMAS Green Bay DA079 Active HMAS Red Rock DA080 Active HMAS Jersey City DA081 Active
HMAS Sugar Land DA082 Active HMAS South Bend DA083 Active HMAS Long Beach DA084 Destroyed
HMAS Happy Valley DA085 Active HMAS Hot Waters DA086 Active HMAS Dawson Creek DA087 Active
HMAS Round Rock DA088 Destroyed HMAS New Cross DA089 Active HMAS Thousand Oaks DA090 Active
Imperial Subclass - Imperial Guard Use Variant
Imperial Subclass - Production Bloc One (aka Prince Series)
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
IAS Prince Albert IGS01 Active IAS Prince William IGS02 Active IAS Princess Katherine IGS03 Destroyed
IAS Princess Zofia IGS04 Bombed/Scrapped IAS Prince Neils IGS05 Active IAS Prince Biaggo ISG06 Active
IAS Prince Richard IGS07 Active IAS Princess Leila IGS08 Active IAS Prince Basilio IGS09 Active
IAS Princess Sophia IGS10 Active IAS Prince August IGS11 Destroyed IAS Princess Marlene IGS12 Active
Imperial Subclass - Production Bloc Two (aka Emperor Series)
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
IAS Emperor Ricardo IGS13 Active IAS Emperor Aurelien IGS14 Heavily Damaged/Scrapped IAS Empress Claire IGS15 Active
IAS Emperor Alec IGS16 Active IAS Empress Guinevere IGS17 Active IAS Emperor Alexander IGS18 Active
IAS Empress Elizabeth IGS19 Damaged/Srapped IAS Emperor Theseus IGS20 Destroyed IAS Emperor Charles IGS21 Active
Imperial Subclass - Production Bloc Three (aka Consort Series)
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
IAS Consort Tomas IGS22 Active IAS Consort Louisa IGS23 Active IAS Consort Rene IGS24 Active
City Class Air Destroyer - Armstrong Subclass
Armstrong Subclass - Production Bloc One
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
HMAS Armstrong DA091 HMAS Duncan DA092 HMAS Greenwood DA093
HMAS Langford DA094 HMAS Nelson DA095 HMAS Terrace DA096
HMAS Parksville DA097 HMAS Merritt DA098 HMAS Mission DA099
HMAS Cranbrook DA100 HMAS Ashfordshire DA101 HMAS Chilliwack DA102
HMAS Brandon DA103 HMAS Mordin DA104 HMAS Winkler DA105
HMAS Dauphin DA106 HMAS Steinbach DA107 HMAS Selkirk DA108
HMAS Halifax DA109 HMAS Colchester DA110 HMAS Argyle DA111
HMAS Chester DA112 HMAS Barrington DA113 HMAS Digby DA114
HMAS Antigonish DA115 HMAS Bridgewater DA116 HMAS Clare DA117
HMAS Guysborough DA118 HMAS Kentville DA119 HMAS Lockeport DA120
HMAS Kenora DA121 HMAS Pembroke DA122 HMAS Sarnia DA123
HMAS Vaughan DA124 HMAS Welland DA125 HMAS Brant DA126
HMAS Rockland DA127 HMAS Belleville DA128 HMAS Waterloo DA129
Armstrong Subclass - Production Bloc Two
Ship's Name Pennant Number Status Ship's Name Pennant Number Status Ship's Name Pennant Number Status
HMAS Saint Katherine DA130 HMAS Saint Alice DA131 HMAS Saint Albert DA132
HMAS Saint Joseph DA133 HMAS Saint Nicholas DA134 HMAS Saint John DA135
HMAS Saint Peter DA136 HMAS Saint Roberts DA137 HMAS Saint Helena DA138
HMAS Saint Ferdinand DA139 HMAS Saint Monica DA140 HMAS Saint Lawrence DA141
HMAS Manaus DA142 HMAS Cali DA143 HMAS Valencia DA144
HMAS Rosario DA145 HMAS Mendoza DA146 HMAS Londrina DA147
HMAS Lima DA148 HMAS Santiago DA149 HMAS Belem DA150
HMAS Havana DA151 HMAS Carolina DA152 HMAS Kingston DA153
HMAS Willemstad DA154 HMAS Portmore DA155 HMAS Artemisa DA156
HMAS Bridgetown DA157 HMAS Kingstown DA158 HMAS Nassau DA159
HMAS Anchorage DA160 HMAS Fairbanks DA161 HMAS Dillingham DA162
HMAS Juneau DA163 HMAS Homer DA164 HMAS Seward DA165
Yukon Class Medium Air Transport
Yellowstone Class Combat Air Transport

Historical Overview[]

Image Gallery[]

Trivia and Notes[]