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Temp Page - Lunar Rover Class Light Cruiser (Enterprise Era)

Posted Oct. 20, 2021, 11:28 a.m. by Fleet Captain Fleet Captain James Sinclair (Engineering Director) (James Sinclair)

Lunar Rover-Class
Category: Cruiser
Variant: Light
Designer: Robert Archer
Mark I
Draft 1
Date: 02/10/2021

History And Mission Overview

In 2120, Earth Starfleet was abuzz with ship building and expansion ideas. The NX class which would eventually use Earth’s first Warp-5 engine was top of the list for designs. Equally daunting though, were other systems to accompany this bleeding edge spaceframe. By 2145 however, Earth had barely passed Warp 3 in speed and so stop gap variant projects began to spring up. One such project which was envisioned to be used as a test bed for the use of other projects was code named ‘Lunar Rover’. This design, due in part to its ability to easily swap out testing components, was at the time as large as the later envisioned NX-Class. By 2148, the four Lunar Rover Rover class light cruisers were put into service, SS Lunar Rover I, SS Lunar Rover II, SS Lunar Rover III and SS Lunar Rover IV.

These four ships would encompass a mixed suite of lighter armaments, moderate hull polarization systems, robust sensor systems and a strong power plant for its time. As well as the ability to be outfitted with internal or external equipment or rooms for further testing. During the Xindi crisis of 2154 they were hastily upgraded to more modern equipment packages across the board from experiences with the NW and NX program developments and missions.

Mission Profiles

The Lunar Rover class light cruisers are suited to the following mission profiles:

1-3 year tours and exploration missions
Planetary surveys
Testbed framework for new technologies, room outfittings, and functions

Structure And Construction

The Lunar Rover class spans seven decks. Decks B through F cover the entire ship’s length and width, while deck A covers only the center and aft lines and deck G covers the center and forward lines respectively. The ship is shaped along the forward end like a wide angular triangle shaped saucer. This section is then connected to a broad angular square shaped hull section, which then tapers off at the aft most end to a half sphere. In essence it is shaped much like an arrow head with a shaft but the ‘fletching’ replaced by a tubular end cap. Projecting upward on two L shaped pylons off the middle hull section are the ship’s two warp nacelles.

The Lunar Rover class is constructed of tempered titanium steel along its whole frame. The ship has a double layered hull, fused with nickel-steel molded in between. Average hull thickness for each layer is 2.0 centimeters. As a secondary layer of protection 2.0 centimeters of detachable titanium steel plates were layered along the hull.

The Lunar Rover class is capable of making atmospheric entry and flight on up to two times Earth standard gravity, though is not capable of landing. Deceleration from orbit to atmospheric flight takes one minute thirty seconds and a return to orbit around two minutes.

Science And Remote Sensing Systems

The Lunar Rover class mounts a moderately robust sensor system which has a low resolution range of 4.5 light years and a high resolution range of 2.0 light years. During the emergency refit of 2154, secondary sensor palettes were installed which extended the range of the system to 4.8 light years and 2.2 light years respectively.

The ship’s deflector dish is positioned under the middle of the triangular saucer by a circular shaped inset on the forward end of deck G.

Computer Systems

The Lunar Rover class contains a single, three deck isograted computer core. It is mounted on decks D through F along the ship’s central line from the bridge. A hard line connection of sub-processors, connects the science and engineering stations directly into the core for increased response and retrieval times. Any other stations though require data chips run by hand to the requested place in question from the central computer core.

Warp Propulsion Systems

The warp core for the Lunar Rover class was originally based on a variation of the Warp-3 and NW Warp-4 core systems. The core and coil systems, while not quite as fast as the NW project, did produce a higher stable power output and endurance time. The core can output 95 Cochranes, with a cruising speed of TOS-Warp 3.2, a maximum sustainable speed of TOS-Warp 3.8, a maximum velocity speed of TOS-Warp 3.9 for 12 hours and an emergency speed of TOS-Warp 4 for 3 hours.

During the emergency refit during the Xindi crisis the coils and injector assembly were upgraded to increase the speeds and power output capable from the original design. The refitted core could produce 110 Cochranes, with a cruising speed of TOS-Warp 3.5, a maximum sustainable speed of TOS-Warp 4.0, a maximum velocity speed of TOS-Warp 5.0 for 12 hours and an emergency speed of TOS-Warp 5.1 for 3 hours.

This core feeds the ship’s two nacelles and is mounted horizontally on the middle sections of decks E and F. The ship’s ejection systems drop the core and matter/antimatter pods out the bottom of the ship by an emergency swing door assembly in the engine room.

Impulse Propulsion Systems

The Lunar Rover class mounts two impulse engines mounted on the joining nacelle pylon structures. The engines can propel the ship to maximum sublight speed of .16c in 75 seconds and a full stop in 90 seconds.

Tactical Systems

Hull Polarization System

The hull polarization system for the Lunar Rover class has a maximum dissipation rate of 3.3 x 10^4 kilowatts and improves the hull rating to over 130%. This system makes use of the same original system found on the Bonaventure class frigate project. Like other systems it too was upgraded in the emergency refit with the Xindi crisis increasing hull integrity to 150% and a maximum dissipation rate of 3.8 x 10^4 kilowatts.

Plasma / Phase Cannon Systems

The Lunar Rover class mounts 3 of the latest Type-1 plasma cannons exact coverage is as follows:

2 plasma cannons mounted forward, 1 to port, 1 to starboard each with a 180 degree coverage and 90 degree angling capability.
1 plasma cannon mounted aft on the rearmost end of the hull with a full 180 degree coverage and angling capability.

During the refit these plasma cannons were upgraded to the latest phase cannons, positioned in the same layout and number.

The plasma cannons have a maximum effective range of 10 kilometers and a maximum output of .5 megawatts. During the refit this output and range was upgraded to .6 megawatts and 35,000km.

Torpedo Systems

The Lunar Rover class mounts 2 Mark-1 spatial torpedo launchers, their exact coverage is as follows:

1 spatial launcher forward and aft on deck D.

The launchers can fire a single probe or torpedo once every 10 seconds. The spatial torpedoes have a maximum range of 50,000 km. The ship as a general load out carries 60 casings, divided into 30 torpedoes and 30 scientific probes. However, mission needs could alter this load out as needed. During the refit in the Xindi crisis the spatial launchers were replaced with photonic launchers increasing the range to 75,000km, and keeping the same standard casing load out.

Command And Support Systems

Bridge

The bridge of the Lunar Rover class is located on deck A, arranged in a 3/4th circle. Stationed in the center on a 4 inch raised platform is the CO’s chair. To port of the CO are the tactical and engineer stations with an attached aux station behind them. To starboard of the CO are the science and communication stations. Forward of the CO is the helm station and behind the CO are two auxiliary consoles setup for mission specific needs, testing or personnel. Forward of the helm station is the view screen, and to the port side of the view screen is a turbolift. While there is no designated position for the XO it is assumed they will be covering as a department head at another station.

Briefing Area

Behind the two auxiliary stations on the bridge, on deck A, is a step down mission briefing table with six chairs around a console based display table. More chairs can be brought in if needed for briefing the senior staff or others on the mission or situation at hand.

Ready Room

Starboard of the forward turbolift on the bridge, on deck A, is the CO’s ready room. This room has a console, work area, and fold down couch and chair, with a small area set aside for personal effects on two shelves.

Brig

The Lunar Rover class’ two cell brig is located on deck D port side. They are each spacious enough to hold up to 8 people collectively without trouble. Each door contains triple bolted hard locks that require outside access to open.

Armory

The Lunar Rover class’ armory is located on the central areas of deck D and E. This two deck room contains manual fire control and loading of the ship’s torpedoes and probes, and maintenance areas for the ship’s small arms. This room also contains weapon lockers with 5 phase rifles and 15 phase pistols.

MACO Squad Area

Though not a normal carried and operated function, the Lunar Rover class was provided with the means to carry a single squad of 8 MACO personnel (1 officer, 7 non-coms) for high risk/security or other special needs functions. As such, this area is set up on deck D to port down the hall from the ship’s armory; this area carries special supplies and storage for the MACO’s 8 weapons and armor suits, as well as training equipment.

Engine Room

The Lunar Rover class’ engine room is located in the outer middle areas of deck D, and the middle inner areas of decks E and F. This three deck room contains the ship’s horizontally mounted warp core, with ejection systems on the bottom of deck F dropping the core out of the ship in an emergency via a hanger-like set of drop doors. Fourteen consoles here show readouts on all power feeds and current ship status. A small square shaped room located on the port side of the engine room on deck F, is reserved for the personal use of the ship’s chief engineer. A maintenance room for repairs and engineering related experiments to the ship’s systems is located opposite the engine room on F deck.

Science Labs

Meant to utilize a full suite of labs for testing and exploration, the Lunar Rover class contains two general purpose labs on the middle sections of deck D, while stellar cartography, astrometrics, and an arboretum are found on the aft quarters of deck D. The Chief science officer’s office is located within the first general science lab.

Utility Systems

Docking Airlocks

There are two universal docking airlocks on the Lunar Rover class. Both are on the aft end of A deck with one to port and one to starboard. Each has a retractable gantry, and may be configured to attach to a variety of hatch sizes and configurations.

Cargo Bays

Located on decks E and F at the very aft end of the hull are the Lunar Rover class’ two large open, two-deck cargo bays. An exterior access door within the bays allows loading of needed supplies at dry-dock.

Magnetic Grappling System

The Lunar Rover class is equipped with two dual grappling launchers. These launchers are located in a recessed bay within the ship’s outer hull on the aft end of deck A and G. Each magnetic grappler and its tether are rated for a maximum target object weight of 15 metric tons, with a tether range of 1.5km.

Transporter Systems

On deck B to port is the Lunar Rover class’ six person transporter pad. It has a total effective range of 3,000km. After transport members are immediately connected into the ship’s decontamination bays nearby by a sealed airlock hallway.

Turbolift Systems

The Lunar Rover class’ standard turbolift system spans all central areas of each deck, with a service bay located near the engine room on deck F.

Unassigned Work / Storage / Experiment Areas

This large empty sectioned bay area situated on decks B through C is devoid of any assigned use by default, for Lunar Rover class’ crew. With a layover at a dock yard however, this area can be converted into a variety of work or special storage areas for mission needs ahead. Typically this area is used for various internal, or on hull testing of new systems or rooms from other projects.

Crew Support Systems

Sickbay

The Lunar Rover class’ sickbay is located on deck B to starboard; it houses 3 examination beds, 1 patient scanner, 2 surgery areas, 2 morgue bays capable of holding 3 bodies each, 2 storage bays, 2 work consoles, a biological lab, and 2 decontamination chambers.

Lounge / Galley

Located together on deck G forward port is the Lunar Rover class’ lounge and galley. The lounge holds 12 tables of varying chair amounts to accommodate off duty personnel. The galley holds a full service kitchen and two storage areas for the kitchen staff’s sole use.

Gym

Located across from the lounge on deck G forward starboard is the Lunar Rover class’ gym. This open area can accommodate a variety of bikes, training mats, and other various means of working out and training for the ship’s crew.

Senior Officer’s Quarters

The senior officer’s quarters are located on the forward half of deck C. They each hold a Queen sized bed, desk, and bathroom.

MACO Command Officer Quarters

A single MACO officer’s quarters setup like the senior officer quarters is arranged near the MACO area on deck D.

Junior Officer’s Quarters

The JO quarters are smaller than the senior officer’s quarters. Each has a single twin sized bed with a work area and bathroom. These quarters are located in clusters on decks C, E and F.

Non-commissioned Officer’s Quarters

The Non-com quarters are sized the same as the JO quarters except they are shared by two non-coms each. Each has a single twin sized bunk bed with a work area and bathroom. These quarters are located in clusters on decks C, E and F.

MACO Non-commissioned Officer’s quarters

Seven MACO non-com quarters setup like the regular crew non-com quarters are arranged in a half ring on the port side of deck D near the MACO area. The sole difference is they are single bunk rather than dual-bunk.

Auxiliary Spacecraft Systems

The Lunar Rover class’ launch bay is located along the aft end of the hull on decks F and G. The bay holds two Type-1 shuttle pods with the required storage, retrieval, and maintenance areas for both pods plus the space and ability to bring aboard 1 extra pod sized object should the need arise.

Technical Specifications
Dimensions and Structure

Length
220 meters

Beam (Width)
130 meters

Height
33 meters

Decks
7

Crew Complement

Officers and Crew
55

MACO Personnel
8

Maximum Evacuation Limit
110

Computer Systems

Core
1x Isograted computer core

Warp Systems

Power Plant
One 95 / 110 cochrane M/ARA cores feeding two nacelles

Cruising Velocity
TOS Warp 3.2 / 3.5

Maximum Sustainable Velocity
TOS Warp 3.8 / 4.0

Maximum Velocity
TOS Warp 3.9 / 5.0 (12 hours)

Emergency Velocity
TOS Warp 4 / 5.1 (3 hours)

Impulse Systems

Full Impulse
.16c

Acceleration
75 seconds

Deceleration
90 seconds

Defensive Systems

Maximum Increase in Hull Integrity
130% / 150%

Polarization Field Maximum Energy Dissipation Rate
3.3x10^4 / 3.8x10^4 kilowatts

Offensive Systems

Torpedoes

Torpedo Tubes
2x Mark-1 spatial / photonic torpedo launchers

Standard Payload (total)
30x spatial / photonic torpedoes
30x probes

Plasma / Phase Energy Beams
3x Type-1 plasma / phase cannons

Deck Layout

Deck A
Bridge
Briefing area
Ready Room
Docking Ring 1 / 2
Grappler Arm 1

Deck B
Transporter Room
Unassigned Work / Storage / Experiment Area
Sickbay
CMO’s Office

Deck C
Unassigned Work / Storage / Experiment Area
Captain’s Quarters
Department Head Quarters
Junior Officer Quarters
Non-Com Quarters

Deck D
Brig 1 / 2
Upper Armory
CAO’s Office
MACO CO Office / Quarters
MACO Non-Com Quarters
MACO Squad Area
Upper Engine Room
Upper Warp Core
Upper Matter/Antimatter Pods
Upper Computer Core
CSO’s Office
General Science Lab 1 / 2
Stellar Cartography
Astrometrics Lab
Arboretum
Torpedo / Probe Launchers (forward/aft)

Deck E
Engine Room
Warp Core
Matter/Antimatter Pods
Computer Core
Computer Core Library Access Room
Lower Armory
Upper Impulse Engine
Upper Cargo Bay 1 / 2
Junior Officer Quarters
Non-Com Quarters

Deck F
Lower Engine Room
Lower Warp Core
Lower Matter/Antimatter Pods
Lower Computer Core
Lower Impulse Engine
Maintenance Room
Upper Launch Bay
Turbolift Service Area
Junior Officer Quarters
Non-Com Quarters

Deck G
Main Deflector
Deflector Control Room
Grappler Arm 2
Lounge / Galley
Gym
Lower Launch Bay

Ships Of The Class

SS Lunar Rover I
SS Lunar Rover II
SS Lunar Rover III
SS Lunar Rover IV

Conclusion

Lunar Rover class ships, though only having four ever constructed by 2148, proved their worth in an era of testing and expansion in Earth’s earliest days of warp spaceflight. While they never gained the fame of the NX class, nor the production run of the Bonaventure, Intrepid and other early classes. They filled a need for the time they were used in testing and service which would see all ship’s through to the end of the 2170s before finally being retired as museum ships in an awards ceremony around Luna.


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