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Size Comp

Galaxy Yacht


Universe : Prime Timeline
Affiliation : Federation
Class Name : Galaxy Yacht
Type : Multipurpose / diplomatic courier and transport1
Unit Run : One per Galaxy class starship.2
Commissioned : In step with Galaxy class starships
Dimensions : Length : 25.6 m3
Beam : 44.4 m
Height : 9.28 m
Decks : 2
Mass : 951 metric tons
Crew : 31
Armament : None
Defence Systems : Standard shield system, total capacity 13,500 TeraJoules
Light Duranium/Tritanium Single hull.
Low level Structural Integrity Field
Impulse only : Max Impulse Speed : 0.651 x c
Atmospheric Cruise (Mach) : 61
Atmospheric Max (Mach) : 201
Strength Indices :
(Galaxy class = 1,000)
Beam Firepower : -
Torpedo Firepower : -
Weapon Range and Accuracy : -
Shield Strength : 5
Hull Armour : 3.13
Speed : -
Combat Manoeuvrability : 17,500
Overall Strength Index : 27
Diplomatic Capability : 1
Expected Hull Life : 100
Refit Cycle : Minor : 1 year
Standard : 1 years
Major : 20 years


The Galaxy class Yacht is essentially a large shuttle with accommodations suitable for diplomatic personnel on short duration interplanetary missions. It is unarmed, although there are defensive shields. The yacht is docked to the underside of the saucer section of the galaxy class, with access via a large roof hatch. The ship can cruise at relativistic speed, although Starfleet practice is to limit all non-critical missions to no more than 0.25 c in order to minimize time dilation effects.

The standard crew is 2 persons, with a third carried to provide care for the guests. The ship has a single deck layout, although the central area is raised in order to provide space for the impulse engine and supporting spaces beneath. It is capable of atmospheric operation and landings.

In practice, the yacht is not often used. Insystem operations are of such duration that Captains have generally preferred to use shuttles for these kinds of roles.4

Yellow text = Canon source Green text = Backstage source Cyan text = Novel White text = DITL speculation


# Series Season Source Comment
2 Visible on the shooting model
3 Speculative Approximation.
4 Star Trek The Next Generation Technical Manual Page 164
Source : Visible on the shooting model
Source : Speculative
Comment : Approximation.
Book : Star Trek The Next Generation Technical Manual
Comment : Page 164


The Galaxy class Captain's Yacht is one of those things that we never got to see on screen. All information on it comes from the TNG Tech Manual. However, the Tech Manual's sizes are way off when you compare them to scale diagrams of the ship as seen on the bottom of the saucer section and to the images of the ship on screen. I have gone with my own calculations for the sizes, but left other specifications unaltered.
Copyright Graham Kennedy Page views : 26,127 Last updated : 5 Apr 2013