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 Canon Facts  Backstage Info  Speculation
Type
Light Cruiser
Unit Run
USS Steamrunner
NCC 52136 USS Appalachia
USS Hiroshima
plus 237 others since 2342. 80 have been lost during the Sector 001 battle and the Dominion war, 160 remain in service.
Commissioned
2342 - 2363
Dimensions
Length : 244 m
Beam : 160 m 
Height : 40 m 
Decks : 9
Mass
375,000 tons
Crew
185
Armament
6 x Type VIII phaser arrays, total output 13,000 TeraWatts 
2 x Pulse fire photon torpedo tubes + 75 torpedoes
2 x Standard photon torpedo tubes + 80 torpedoes
Defence Systems
Shield system, total capacity 891,000 TeraJoules
Standard Duranium/Tritanium double hull plus 4.8 cm High Density armour.
Standard level Structural Integrity Field
Warp Speeds
(TNG Scale)
Normal Cruise : Warp Factor 6 
Maximum Cruise : Warp Factor 8.8 
Maximum Rated : Warp Factor 9.5
Strength Indices
(Galaxy class = 1,000)
Beam Firepower : 260
Torpedo Firepower : 750
Weapon Range and Accuracy : 465 
Shield Strength : 330
Hull Armour : 580
Speed : 940
Combat Manoeuvrability : 9,000
Overall Strength Index
515
Grade 3
Expected Hull Life
48 years
Refit Cycle
Minor : 2 years 
Standard : 8 years 
Major : 24 years

Notes : During the late 2340's Starfleet became increasingly worried about the average age of the ships in the fleet. Although vessels such as the Miranda and Excelsior class were performing adequately as mid sized cruisers and destroyers, these designs dated back between 50 and 100 years and were lagging behind the latest technology despite frequent refits. Rapid expansion of the Federation was also putting a great strain on both the exploratory and defence capacities of Starfleet, and although the Nebula class was under development Starfleet was predicting that it would be unable to meet all of its commitments by 2365.

The Steamrunner design was fielded in the early 40s along with the Saber as part of a major fleet wide programme of modernization. Essentially the Steamrunner's serve a similar function to the modern day Intrepid class - a smaller, faster counterpart to the cruiser class ships which would be deployed in large numbers to augment the more capable designs. The first of the class was launched in 2342, and series production began after a six month flight test programme.

The Steamrunner introduced several innovations into Starfleet; she was the first to be equipped with an isolinear computer system rather than the duotronic system then in use. Her hull form was also rather unusual in appearance; the angular profile of the primary hull was claimed to be an inherently stronger shape than the traditional circular/elliptical shape, allowing a reduction in the thickness of the structural beams which decreased the overall vessel mass by some 12%. This made for greater acceleration at both impulse and warp. However, some flaws have surfaced in the design; Steamrunner class ships which engaged in extended periods of high warp speed found some cracking in the structural members of the primary hull. Several fixes were tried to correct this problem; Starfleet finally found that a combination of a modified Structural Integrity Field system and slight changes to the Warp drive itself eliminated the harmonic vibrations which were causing the problem. Those vessels already damaged had to have some of their main hull support structure replaced, a task which set construction of the class back some time.

Although the Steamrunner is relatively limited in its capabilities to perform scientific and exploratory functions compared to a larger ship, its real difficulties lie in the diplomatic area. Like the Intrepid class which is now replacing it, the Steamrunner is capable of holding only limited diplomatic venues. Despite this the Steamrunner's have proved their worth in diplomacy, helping to settle many matters in sparsely populated areas where Starfleets "big guns" rarely make an appearance.

Today the Steamrunner is beginning to take a more back seat as the Intrepid class becomes more common. The last few years have seen many units of this class moving from the outer territories to the core of the Federation. Thirty six of the class were recently been rebuilt as border patrol craft. This involves a reduction in Shuttle craft Facilities by approximately 50% in favour of a larger load of photon torpedoes and a refit to the shield generators. Serving with the Typhon Sector Fleet, these ships were heavily involved with the Borg attack of 2373 where they suffered severe casualties. More recently Steamrunner class ships have been serving as scouts during the war with the Dominion. Losses here have also been significant.
 


Last updated : 24th October 1999.
This page is Copyright Graham Kennedy 1998.

Star Trek et al is Copyright Paramount Pictures 1996/97.
No Copyright  infringement is intended and this page is for personal use only.
All  of the above classes of star ships and all of the
named ships are copyright Paramount 1996/97.