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Cheyenne Class Starfleet Starship
Expected Duration: 80 years
Time Between Resupply: 1 years
Time Between Refit: 5 years
Enlisted Crew: 250
Maximum (Evacuation) Capacity: 800
Cruising Velocity: Warp 7.0
Maximum Velocity: Warp 9.0
Emergency Velocity: Warp 9.6 (for 12 hours)
Length: 394 metres
Width: 250 metres
Height: 134 metres
Delta Flyer Runabout: 1
Type 5 Shuttle: 2
Type 9 Shuttle: 2
Type 15 Pod: 2
Type 10 Phaser Array: 6
Structural Integrity Field
Burst Fire Torpedo Launcher: 2
Photon Torpedoes: 200
Quantum Torpedoes: 80
The Cheyenne class was designed as a successor to the problem-ridden Constellation class. Starfleet's experiment with a four nacelle configuration had failed to achieve the expected results with the Constellation class and engineers believed they had worked out the kinks and were ready to try again.
For the Cheyenne class a lot of the technology designed for the Galaxy family was included, the saucer section is the same as for the Galaxy, only scaled-down in size. As such, the Cheyenne only mounts four type IX phaser arrays, one emitter class lower than the Galaxy due to the size and power requirements of the system, but has the same torpedo firepower, with one forward and one aft facing burst fire launcher.
This gives the Cheyenne a surprising punch for her size in long-range engagements, however as the enemy closes to a range where torpedoes become ineffective the Cheyenne class is easily out-gunned. In fleet engagements the Cheyenne class needs to be supported by other craft, therefore.
Early field tests with the nacelle configuration proved indeed that the engineers had overcome the inherent problems in the Constellation class, however it also showed that the power consumption rate of the drive configuration at greater speeds was much higher than with a two nacelle configuration, causing Starfleet to re-design the warp engines completely.
With the four nacelles in place it was decided to only run two of them at a time, which allowed the Cheyenne longer duration of emergency velocity as one pair of nacelles could cool down while the other took over. Getting a bad cost-use ratio out of the design Starfleet decided to abandon the four nacelle configuration entirely.
Class production continued at a moderate pace, the ship itself was a solid design and a capable destroyer. 47 ships were built in total and the class remains in service. One was lost against the Borg, nine against the Dominion.
Cheyenne class vessels can be found primarily in core areas of the Federation and often assist in the defence of outposts, starbases and colonies.
||dorsal tractor emitter, warp core jettison hatch, communications array
||shuttle maintenance, aft dorsal phaser array
||shuttle bay, engineering lab 1, docking port
||deuterium storage, auxiliary engineering, cargo bays 1 & 2
||environmental controls, lateral sensor array, hydroponics
||gymnasium, shuttle maintenance bay
||bridge, Skipper's ready room, observation lounge, matter reactant injectors
||Skipper's quarters, XO's quarters, senior officers' quarters, main computer core (level 1)
||crew lounge, reception hall, junior officers' quarters, primary sensor array, VIP quarters, holodeck 1, transporter room 1, main computer core (level 2), aft torpedo launcher, torpedo storage
||fusion reactor 1, impulse assembly, (upper), upper engineering, sickbay, holodeck 2, civilian quarters, power distribution centre, transporter room 2, main computer core (level 3)
||fusion reactor 2, impulse assembly (lower), main engineering, VIP quarters, holodecks 3&4, cargo bays 3&4
||crew quarters civilian quarters, auxiliary deflector controls, SIF generators, transporter room 3
||crew quarters, civilian quarters, mess hall, security office, brig, forward torpedo launcher, torpedo storage
||antimatter reactant injectors, warp core maintenance bay, engineering lab 2, arboretum
||science labs 1-3, Chief Science Officer's office
||main deflector array, science labs 4 & 5, cargo bay 5
||antimatter storage, antimatter ejection system, secondary sensor array, docking port
||stellar cartography & astrometrics, industrial replicators, firing range
||aft ventral phaser array, cargo bay 6
||ventral tractor beam emitter, waste management