Star Trek Intelligence - The best source for Star Trek starships and technology information - Last update: 12.31.2022
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From:
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As requested, selected starship and technology intelligence reports transferred from the Central Records Archive located at Starfleet Intelligence headquarters. Per regulations all information in this document is considered classified and is not to be shared with individuals without prior clearance.

You may now use this PADD to review intelligence information obtained from the major powers of the galaxy translated into standard Federation English for your convenience. To review, click the button at the top of your PADD. Further database structure and usage information can be found in the database guide.

Please select the starship intelligence report of your choice. It should be noted that because of the nature of intelligence gathering, only a limited amount of information may have been obtained due to an increase in security or the reassignment or untimely death of one or more undercover agents. However Star Fleet Intelligence is committed to gather the most complete intelligence possible, no matter the cost.

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Category:
Length:
Width:
Height:
Mass:
Explorer
511.25 meters
195.64 meters
88.76 meters
2,350,000 metric tons
Commisioned:
Phasers:
Cruising Speed:
Max Speed:
2284
Type VIII-IX
Warp 6
Warp 8.6-9.4 (12h)
Notes: The Excelsior class was originally designed as a test bed for Starfleet's first experimental transwarp drive. Having been sabotaged before the engines' first transwarp test and having failed in all subsequent attempts, the Excelsior prototype was refitted with a conventional warp drive. As full production started on the Excelsior class, the ship became the mainstay of the fleet in the late 23rd and early 24th centuries, replacing the older Constitution class as the flagship class. The Excelsior class remained in service well into the late 24th century, more then 100 years after if was first launched. A program of continuous enhancements to the ships systems, and being the personal flagship of choice for many admirals, kept the class relevant for its entire life time. The Excelsior class has two major refit variants, the Enterprise-B type and the Lakota type. The Enterprise-B type, commissioned in the late 23rd century, has upgraded sensor and science systems. The Lakota type, commissioned in 2372 right before the outbreak of the Dominion war, brought the weapon and defensive systems up to standard with the Defiant and Sovereign classes.
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Impulse engines are the main form of sub-light propulsion on board Federation starships. Impulse drive is mainly used within solar systems or areas of space where warp drive is no available. Normal operation of the impulse engines will propel a Federation starship at up to speeds of 0.25c. Depending on the size and number of impulse engines available, ships such as the Galaxy class, can obtain emergency speeds up to 0.75c when required from the impulse engines. The impulse engine reactors are also the main source of power for the ships EPS power systems.

Onboard Federation starships there is normally one main impulse drive mounted on the rear of the secondary hull. This drive is used for the primary propulsion of the ship during standard operation. On larger Federation starships there may secondary impulse engines mounted on the primary hull to provide additional propulsion for the ship.

The impulse engines are composed of four main parts. The first part of the engine is one or more fusion reaction chambers. These reaction chambers are supplied deuterium from the ships primary storage tanks; here it undergoes a fusion reaction producing high energy plasma. The plasma is directed out of the chamber into the accelerator/generator stage. During times when the impulse engines are not being used to propel the ship the output of the reaction chamber are directed into the ships EPS system. When being used to propel the ship the plasma is accelerated and passed into the driver coil assembly. The driver coils are similar to those found in the ship Â’s warp engines; these coils have the effect of reducing the ships apparent mass allowing the reaction to drive the ship. After leaving the driver coils the plasma is sent though the vector exhaust ports, driving the ship forward.

Prolonged use of the impulse engines are not recommended due to th e effects of special relativity, especially at speeds higher than 0.25c.