Siva Class VII Destroyer

«Last Updated on November 8, 2023 »


Class design by Franz Joseph

The Siva class on single engine destroyer was the first real attempt by Star Fleet designers to redesign and incorporate newly discovered requirements from practical reports concerning the Saladin class, it’s close cousin. Like the Saladin, the Siva used the FWC power plant to provide excellent speed and good maneuverability as well as sufficient secondary power to make the Siva a more potent combatant than it’s older cousin. However, the internal arrangement of the Siva was significantly different from the Saladin, prompting Star Fleet to issue construction contracts as a new class of ship.

The Siva saw the redesign of the science labs to more internal spaces on Deck 5, while officer quarters were moved to decks 2 and 3. To help ensure the greatest possible survivability or the ship, additional cross-over and Jeffrie’s Tubes were installed on deck 6 and 7, allowing crews to reroute power and other vital systems at multiple junctions. Warp field control rooms were also moved closer to main engineering. However, it was the main laser weapon support system that were redesigned to give the ship better fighting prowess. The original battery supply, which supplemented the main laser weapons, was moved inward of the laser system, rather than beside the weapons as in the Saladin and Cochise. While this meant that catastrophic damage to the appropriate deck had the potential to damage or knock out multiple batteries simultaneously, it also meant that the batteries, power transfer systems and other weapon-subsystems were better protected during initial salvos. And unexpected bonus was soon discovered, however. The relocated science labs could now tap into the battery system to supplement various equipment during research operation, reducing the drag on the main power subsystem. This provided a marginal but appreciable increase in full combat readiness during red-alert situations.

The Mk I was fielded with the FL-1 main beam weapons which supported to powerful and effective FAC-1. This gave the Mk I’s surprising combat potential, which would soon come to bear during the Four-Years War. Like it’s sister ships, all 10 Siva destroyer saw widespread action during the war, with each ship seeing extensive damage by wars end. Like it’s sister ships, crew casualties were high among these vessels, yet the ships could easily be repaired and brought back into the fight making the design resilient and popular with fleet planners.

The Mk II was quickly fielded as the war dragged on in an attempt to create a more capable combat platform to counter the effectiveness of the numerous Klingon vessels encountered during the conflict. However, upgrades to the existing Mk I’s were slower than anticipated.

After the war, the ease of repair and ease of upgrade made the Siva a candidate for renovation to improved specs. Designers replaced the main beam weapon with the FH-4 and replaced the FAC-2 with the more efficient FP-2. While the FP-2 did not have the overall impact of the FAC-2, it’s ability to function at warp speed made the FP-2 far more desirable. The FP-2 also required less maintenance and space, allowing for additional torpedo casings to be brought on board.

In 2263, as relations with the Klingons once again deteriorated, the decision was made to include the Siva in the modernization program of the 2260’s. With improvements to batter design and the re-engineering of several internal spaces, the powerful FH-5 was installed, as was the bulkier but more powerful FP-1. A significantly more powerful shield system was also installed, giving the Siva excellent survivability during combat. The main power system was upgraded to the FWC-2 which produced greater secondary power and had excellent maneuverability. Several Siva’s saw action during the short lived Organian conflict, faring well during combat.

The Siva class would go on to serve well until their eventual retirement in 2272. Of the 10 Siva’s fielded, 6 were converted so Siva II’s and 2 were converted to Jenghiz class destroyers.

Construction Data:
Model Number — Mk I MK II Mk III Mk IV
Ship Class — VII VII VII VII
Date Entering Service — 2243 2253 2256 2263
Number Constructed — 10 Refit Refit Refit
Hull Data:
Superstructure Points — 12 16 18 18
Damage Chart — C C C C
Length — 241.9 m 241.9 m 241.9 m 241.9 m
Width — 127.1 m 127.1 m 127.1 m 127.1 m
Height — 59.9 m 59.9 m 59.9 m 59.9 m
Weight — 85,170 mt 92,730 mt 93,725 mt 94,835 mt
Cargo Units — 190 SCU 190 SCU 190 SCU 190 SCU
Cargo Capacity — 9,500 mt 9,500 mt 9,500 mt 9,500 mt
Landing Capacity — None None None None
Equipment Date:
Control Computer Type — M-1 M-1 M-2 M-2
Standard 6-person — 2 2 2 2
Emergency 22-person — 1 1 1 1
Cargo — 2 2 2 2
Other Data:
Crew — 195 195 195 195
Passengers — 10 10 10 10
Shuttlecraft — 2 2 2 2
Engines And Power Data:
Total Power Units Available — 16 18 20 26
Movement Point Ratio — 3/1 3/1 3/1 2/1
Warp Engine Type — FWC-1 FWC-1 FWC-1 FWC-2
Number — 1 1 1 1
Power Units Available — 14 14 14 20
Stress Charts — N/L N/L N/L M/K
Max Safe Cruising Speed — Warp 8 Warp 8 Warp 8 Warp 7
Emergency Speed — Warp 10 Warp 10 Warp 10 Warp 9
Impulse Engine Type — FIB-1 FIB-2 FIB-3 FIC-3
Power Units Available — 2 4 6 6
Weapons And Firing Data:
Beam Weapon Type — FL-1 FL-3 FH-4 FH-5
Number — 6 6 6 6
Firing Arcs — 2 f/p, 2 f, 2 f/s 2 f/p, 2 f, 2 f/s 2 f/p, 2 f, 2 f/s 2 f/p, 2 f, 2 f/s
Firing Chart — D G Q R
Maximum Power — 2 2 3 4
Damage Modifiers:
+3 (-) (-) (-) (-)
+2 (-) (-) (1-8) (1-8)
+1 (-) (1-4) (9-14) (9-16)
Torpedo Weapon Type — FAC-1 FAC-2 FP-2 FP-1
Number — 2 2 2 2
Firing Arcs — 2 f 2 f 2 f 2 f
Firing Chart — F G H L
Power to Arm — 3 4 1 1
Damage — 8 10 6 10
Shield Data:
Deflector Shield Type — FSA FSE FSF FSK
Shield Point Ratio — 1/1 1/1 1/2 1/2
Maximum Shield Power — 6 9 10 16
Combat Efficiency:
D — 33.2 44.4 58.7 84.7
WDF — 6.4 9 19.6 28.6