Apache Class X Heavy Destroyer

From Starship Size Comparison Chart & Vintage Starship II

Notes - circa 2287:

     Historically, Starfleet had only ever fielded one heavy Destroyer class, the Detroyat class of 2224. In 2243, Starfleet Tactical suggested the development of a new tactic for Destroyer operations, the use of leaders. New sensor technology, such as that fitted to the Constitution class offered massive range improvements, but it was felt that the sensor suite and associated systems were too large to be fitted to standard Destroyers. As a result the 10 Detroyat class ships were refitted with modern warp drives, and with the new sensor systems, it was also decided to order 26 vessels to supplement the Detroyats. The total of 36 Heavy Destroyers was felt to be sufficient to allocate one to each group of 6 standard destroyers operating along the Klingon and Romulan borders. The Heavy Destroyer would act as the command ship for the group, and also provide long range sensors.
     The design, later to be named Apache, started off as a modified Detroyat design. During the design process the class evolved, the saucer was modified to feature an elongated rear edge and the secondary hull was massively enlarged compared to that of the Detroyat. It was intended that the Apache would be allocated to Destroyer groups allocated to more remote areas, and as a result the secondary hull was enlarged to enable it to carry spares and supplies to support its assigned group.
     In service the Apache proved to be as dependable as its illustrious ancestor. Destroyer groups led by Apaches served with distinction throughout the Four Years War, and a group led by the USS Tartar was instrumental in the Attack of Convoy Y-16Z in 2253, the first significant Federation fleet victory of the war. So effective was the Leader concept, that a number of Cygnus class command couriers were rearmed and modified to act as Leaders to supplement the insufficient numbers of Detroyats and Apaches.
     Postwar the fortunes of the Apache, and the leaders in general waned. The progress in miniaturisation meant that conventional destroyers could now mount the long range sensors far more economically. As a result the Detroyats were reclassified as long range scouts and assigned to exploration duties, and the new leader class, the Derf, was modified to become a tender. The 18 surviving Apaches were retained in service, but were grouped together to form three heavy destroyer groups, which were assigned to the defence of Terra, Vulcan and Alpha Centauri. In 2258 the ships were rearmed with phasers and photon torpedoes.
     Heightened tensions leading up to the Organia conflict led to the Apaches being refitted again, and recalled to the Klingon Border. This time they served as sector command ships, supplementing the Perimeter Action Ships of the Kiaga and Agilis classes. The success of the ships in this role led to them being reclassified as Strike Cruisers (interim) in 2268, and they served in this capacity until the Belknap class entered full service.
     The Apaches were progressively retired to reserve from 2280 onwards as the Belknap class ships assumed their role.
     The Apache class was named by Admiral Wood, commander of Military Operations Command in commeration of his first command, the Mann class Cruiser USS Apache.


Construction Data:            
     Model-    Mk I    Mk II    Mk III
     Class-    X    X    X
     Class Commission Date-    2246    2257    2263
     Number Produced-    26    18 Refit    17 Refit
Hull Data:            
     Superstructure-    22    22    22
     Damage Chart-    C    C    C
          Length-    261 m    261 m    261 m
          Width-    141 m    141 m    141 m
          Height-    53 m    53 m    53 m
          Displacement-    142,685 mt    141,460 mt    141,595 mt
     Total SCU-    262 SCU    262 SCU    262 SCU
     Cargo Capacity-    13,100 mt    13,100 mt    13,100 mt
Equipment Data:            
     Computer Type-    M-2    M-3    M-3
          Standard 6-person-    2    2    2
          Emergency 22-person-    3    3    3
          Cargo-    2    2    2
Other Data:            
     Crew-    268    265    220
     Passengers-    40    40    40
     Shuttlecraft-    5    5    5
Engines and Power Data:            
     Total Power Available-    30    42    44
     Movement Point Ratio-    3/1    2/1    2/1
     Warp Engine Type-    FWD-1    FWD-2    FWD-2
          Number-    2    2    2
          Power-    12 ea.    18 ea.    18 ea.
          Stress Chart-    L/G    M/G    M/G
          Max Safe Cruising-    Warp 7    Warp 6    Warp 6
          Emergency Speed-    Warp 9    Warp 8    Warp 8
     Impulse Engine Type-    FIC-3    FIC-3    FIE-2
          Power Units-    6    6    8
Weapons and Firing Data:            
     Beam Weapon Type-    FL-5    FH-5    FH-8
          Number-    6    6    6
          Firing Arcs-    2 f/p, 2 f/s, 1 p/a, 1 s/a    2 f/p, 2 f/s, 1 p/a, 1 s/a    2 f/p, 2 f/s, 1 p/a, 1 s/a
          Firing Chart-    H    R    T
          Maximum Power-    2    4    5
          Damage Modifiers            
               +3    (-)    (-)    (-)
               +2    (1-4)    (1-8)    (1-10)
               +1    (5-7)    (9-16)    (11-18)
     Torpedo Type-    FAC-1    FP-2    FP-2
          Number-    1    2    2
          Firing Arcs-    1 f    2 f    2 f
          Firing Chart-    F    H    H
          Power To Arm-    1    2    2
          Damage-    8    6    6
Shield Data:            
     Shield Type-    FSE    FSG    FSH
          Shield Point Ratio-    1/1    1/1    1/2
          Maximum Shield-    8    10    12
Combat Efficiency:            
     D-    53.5    64.5    89.5
     WDF-    8.1    22.6    29.8