Name: Mars class
Type: Heavy cruiser
Affiliation: Sign HavenArmedForces People's Republic of Haven
Date Introduced: * Mars-A - 1896 PD
* Mars-B - 1905 PD
Preceded By: Sword class
Mass: * Mars-A - 451,750 tons
* Mars-B - 477,250 tons
Length: 607 m
Beam: 73 m
Draught: 61 m
Acceleration: * Mars-A, Mars-B, Proselyte - 501 G
* 630 G[1]
Crew: * Mars-A - 1086
* Mars-B - 1193
Power: * Mars-A - 2 x Goshawk-2 Fusion Reactors
* Mars-B - 2 x Goshawk-3 Fusion Reactors
Armament: 28M, 6G, 12L, 32CM, 32PD

Mars class was the name of at least four similar heavy cruiser designs used by the People's Navy, namely Mars-A (the original Mars class), Mars-B, Mars-C and Mars-D. (JIR2, SI1, CS2)

Class DesignEdit

Meant to carry a new, more efficient compensator that it did not receive in the end, the Mars-class had a lot of excess power in its wedge. This let it tow missile pods without losing as much acceleration as other cruisers.

Compared to the Sword class, it only sported two-thirds of its telemetry capacity, had less magazine space and was twenty gravities slower. In exchange for these sacrifices, the Mars-class had superior electronic warfare capabilities and nearly twice the broadside armaments. (HH7)

There have been three production runs of this class so far. The Mars-A and Mars-B were powered by the Goshawk-3 fusion reactor, but the Mars-C carried the Goshawk-4 and the earlier built ships were steadily updated, because the Goshawk-3 had some serious design flaws: its failsafes were prone to spontaneous failure, resulting in the loss of two ships while in parking orbit and most likely even more that simply vanished while in transit. (SI1)

4 of these ships were renamed the Proselyte class and used by the Grayson Space Navy. (Companion)

Known ShipsEdit





Uncertain classEdit


  1. As of the start of the Second Havenite-Manticoran War.

Havenite Starship Classes
Astra (CLAC) | Aviary | Bastogne | Brilliance | Champion | Charles Wade Pope | Chevalier | Conqueror | Desforge | DuQuesne | Durandal | Frigate | Fouchart | Haven | Hempstead | Lion | Mars | Nouveau Paris | Roughneck | Sovereign of Space | Sultan | Sword | Temeraire | Tiger | Tonnerre | Triumphant | Trojan | Warlord | Warrior
Non-Warships Astra | Longstop | Trumbull
Small Craft Cimeterre | Foudre | Fracteur | Mercure | Ouragan | Program 13 | Razzia | Transall

Grayson Starship Classes
Ararat | Argonaut | Austin Grayson | Benjamin the Great | Convert | Covington | David | Faith | Glory | Hill | Honor Harrington | Jacob | Jason Alvarez | Joseph | Joshua | Katana | Manticore's Gift | Matthias | Neophyte | Protector Adrian | Raoul Courvosier | Raoul Courvosier II | Steadholder Denevski | Zion
Torch Starship Classes
John Brown | Mars-D | Nat Turner
Mars-class heavy cruisers
People's Navy
PNS Mars | PNS Loki | PNS Marduk | PNS Nurghal | PNS Odin | PNS Thor | PNS Tyr | PNS Anhur | PNS Ares | PNS De Conde | PNS Hachiman | PNS Huan-Ti | PNS Ishtar | PNS Rienzi | PNS Tanit | PNS Krashnark | PNS Morrigan | PNS Nuada | PNS Yama
Grayson Space Navy GSNS Ares | GSNS Huan-Ti | GSNS Ishtar | GSNS Krashnark
People's Navy in Exile PNES Chao Kung Ming
Royal Torch Navy TNS Spartacus

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