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[[File:Constitution class refit, turbolift network.jpg|thumb|A map of the turbolift system aboard the refit {{ShipClass|Constitution}} {{USS|Enterprise|NCC-1701}}]]
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[[File:Constitution class refit, turbolift network.jpg|thumb|A map of the turbolift system aboard the refit {{class|Constitution}} {{USS|Enterprise|NCC-1701}}]]
 
[[File:Turbolift in motion.jpg|thumb|View of a turbolift from the outside]]
 
[[File:Turbolift in motion.jpg|thumb|View of a turbolift from the outside]]
Located on board most [[starship]]s and [[space station]]s, the '''turbolift''' provides both vertical and horizontal transportation for personnel through [[turboshaft]]s between key sections of a ship. In the [[2270s]], the turbolift's tactile interface was succeeded by voice command operation.
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Located on board most [[starship]]s and [[space station]]s, the '''turbolift''', or '''turbo-elevator''', provided both vertical and horizontal transportation for personnel through [[turboshaft]]s between key sections of a ship. In the [[2270s]], the turbolift's tactile interface was succeeded by voice command operation.
   
 
== Turbolift specifications ==
 
== Turbolift specifications ==
 
{{pna-cite}}
 
{{pna-cite}}
The turbolift personnel transport system is a network of inductively powered transport tubes allowing the volume of the ship to be traversed in a high-speed manner.
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The turbolift personnel transport system was a network of inductively powered transport tubes allowing the volume of the ship to be traversed in a high-speed manner.
   
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[[File:Turbolift access denied.jpg|thumb|Turbolift access denied]]
Many [[Starfleet]] turbolifts are comprised of a lightweight [[duranium]]-composite framework supporting a cylindrical personnel cab constructed from microfoamed duranium sheeting. Mounted longitudinally along the exterior of the cab are three linear induction motors that provides the motive force. [[Electromagnetic]] conduits located along the length of each [[turboshaft]] provide power to these motors, allowing accelerations up to ten [[meter]]s per second squared. {{incite}} To counter such high acceleration speeds, an inertial dampener is usually installed at the base of the cab to provide crew comfort, eliminating some (although not all) of the acceleration effects. In some Starfleet vessels, a plan of the ship is displayed along the back of the turbolift, allowing for directional assistance in the absence of computer access.
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Many [[Starfleet]] turbolifts were comprised of a lightweight [[duranium]]-composite framework supporting a cylindrical personnel cab constructed from microfoamed duranium sheeting. Mounted longitudinally along the exterior of the cab were three linear induction motors that provided the motive force. [[Electromagnetic]] conduits located along the length of each [[turboshaft]] provided power to these motors, allowing accelerations up to ten [[meter]]s per second squared. {{incite}} To counter such high acceleration speeds, an inertial dampener was usually installed at the base of the cab to provide crew comfort, eliminating some (although not all) of the acceleration effects. In some Starfleet vessels, a plan of the ship was displayed along the back of the turbolift, allowing for directional assistance in the absence of computer access. Turbolifts could also be locked down in the event of a security incident, blocking access to critical areas of the ship, such as the [[main bridge]]. ({{TNG|11001001}})
   
{{ShipClass|NX}} starships needed only a button to be pressed to specify which deck to travel to. ({{ENT|Cold Front}}) Incorporated in the design of {{ShipClass|Constitution}} turbolifts were small handles on the interior, allowing for transport without the use of voice commands. At some point, it became necessary to use ''both'' the handle and to submit a voice command on board ''Constitution''-class ships. ({{DS9|Trials and Tribble-ations}}) Later refits phased out any analog interfaces and featured auditory receivers allowing passengers to use voice commands to direct the turbolift. Upon receipt of the voice command, the command queries the network, allowing for computation of the most optimal route to the destination. Such routes factor in the presence of other turbolifts already in operation. The auditory receivers also automatically scan for [[voiceprint]] authentication, allowing for select personnel access to restricted areas. Turbolifts from the [[23rd century]] also featured communication panels to allow communication with other sections of the ship without the need for a [[communicator]]. ({{TOS|Elaan of Troyius}})
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{{class|NX}} starships needed only a button to be pressed to specify which deck to travel to. ({{ENT|Cold Front}}) Incorporated in the design of {{class|Constitution}} turbolifts were small handles on the interior, allowing for transport without the use of voice commands. At some point, it became necessary to use both the handle and to submit a voice command on board ''Constitution''-class ships. ({{DS9|Trials and Tribble-ations}}) Later refits phased out any analog interfaces and featured auditory receivers allowing passengers to use voice commands to direct the turbolift. Upon receipt of the voice command, the command queried the network, allowing for computation of the most optimal route to the destination. Such routes factored in the presence of other turbolifts already in operation. The auditory receivers also automatically scanned for [[voiceprint]] authentication, allowing for select personnel access to restricted areas. Turbolifts from the [[23rd century]] also featured communication panels to allow communication with other sections of the ship without the need for a [[communicator]]. ({{TOS|Elaan of Troyius}})
   
While most [[starship]] turbolifts were enclosed, some turbolifts remained open when at rest, in the style of an elevator built in the early-to-mid-[[20th century]]. The [[Cardassian]]s built such a turbolift on [[Terok Nor]] when it was in operation, and it was still in use by Starfleet on the renamed [[Deep Space 9]]. Once this turbolift became activated, it became enclosed as a precautionary measure. These turbolifts' positioning mechanisms were powered by multi-phase alternating current. In ships and stations that contain turbolift doors that remain closed while not in use, the doors will often be unresponsive in low or no power situations.
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While most [[starship]] turbolifts were enclosed, some turbolifts remained open when at rest, in the style of an elevator built in the early-to-mid-[[20th century]]. The [[Cardassian]]s built such a turbolift on [[Terok Nor]] when it was in operation, and it was still in use by Starfleet on the renamed [[Deep Space 9]]. Once this turbolift was activated, it became enclosed as a precautionary measure. These turbolifts' positioning mechanisms were powered by multi-phase alternating current. In ships and stations that contained turbolift doors that remained closed while not in use, the doors were often unresponsive in low or no power situations.
   
[[File:Turbolift Door forced open.jpg|thumb|With ''Voyager'' at low power, Janeway is forced to open the turbolift doors by hand.]]
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[[File:Turbolift Door forced open.jpg|thumb|With ''Voyager'' at low power, Janeway is forced to open the turbolift doors by hand]]
 
In a {{class|Galaxy}} starship, turbolifts were regulated by the [[turbolift control]] and an average of ten turbolift cars were in service at any one time. Some peak usage times, such as change-of-shift, could call for a doubling of the turbolift cars with only a 22% decrease in efficiency. The reason this was possible was that the turboshaft network was designed with the specific purpose of allowing multi-access loops and thus permitting a flexible route for each turbolift car. {{incite}}
 
In a {{ShipClass|Galaxy}} starship, turbolifts are regulated by [[turbolift control]] and an average of ten turbolift cars are in service at any one time. Some peak usage times, such as change-of-shift, can call for a doubling of the turbolift cars with only a 22% decrease in efficiency. The reason this is possible is because the turboshaft network is designed with the specific purpose of allowing multi-access loops and thus permitting a flexible route for each turbolift car. {{incite}}
 
   
 
When battle stations are ordered, all turbolift cars may be subjected to deactivation pending the authorization of the [[Captain|commanding officer]]. In such cases, personnel are still free to move about the ship via a network of vertical ladders and [[Jefferies tube]]s.
 
When battle stations are ordered, all turbolift cars may be subjected to deactivation pending the authorization of the [[Captain|commanding officer]]. In such cases, personnel are still free to move about the ship via a network of vertical ladders and [[Jefferies tube]]s.
   
While docked at a [[Starbase]], the turboelevator network is connected to the network of the adjacent Starbase, allowing for easy passage without the use of an umbilical dock. This is accomplished through a connection point located at the upper terminus of turboshaft two, leading from the main bridge. When linked, turbolifts cars may travel freely between the ship and areas of the Starbase. (''[[Star Trek: The Next Generation Technical Manual]]''; {{TOS|Where No Man Has Gone Before}}; [[Star Trek films#The Original Series|Original Series films]]; ''[[Star Trek: The Next Generation]]'')
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While docked at a [[starbase]], the turboelevator network was connected to the network of the adjacent starbase, allowing for easy passage without the use of an umbilical dock. This was accomplished through a connection point located at the upper terminus of turboshaft two, leading from the main bridge. When linked, turbolifts cars could travel freely between the ship and areas of the starbase. (''[[Star Trek: The Next Generation Technical Manual]]''; {{TOS|Where No Man Has Gone Before}}; [[Star Trek films#The Original Series|Original Series films]]; ''[[Star Trek: The Next Generation]]'')
   
{{bginfo|This may be contradictory to what is seen in {{TNG|11001001}}. There we saw an umbilical attached to the midsection of the ''Enterprise'' with personnel traversing it, but did not see the [[Nautical terms|bow]] of the ship, thus not revealing the aforementioned turboelevator network connection to the starbase.|Most of the information is taken from ''[[Star Trek: The Next Generation Technical Manual]]'' and may not be [[canon]], although a large part of this literature is considered canon. Also, there is not enough evidence from any series to prove these facts as not canon.}}
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{{bginfo|This may be contradictory to what was seen in {{e|11001001}}. In that episode, an umbilical was attached to the midsection of the ''Enterprise'' with personnel traversing it, but the [[Nautical terms|bow]] of the ship could not be seen, and thus the aforementioned turboelevator network connection to the starbase was not revealed.|Most of the information is taken from ''[[Star Trek: The Next Generation Technical Manual]]'' and may not be [[canon]], although a large part of this literature is considered canon. Also, there is not enough evidence from any series to prove these facts as not canon.}}
   
 
<gallery>
 
<gallery>
 
File:Enterprise turbolift, Sleeping dogs.jpg|The interior of a [[22nd century]] turbolift
 
File:Enterprise turbolift, Sleeping dogs.jpg|The interior of a [[22nd century]] turbolift
File:Turbolift, Elaan of Troyius.jpg|The interior of a [[23rd century]] turbolift
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File:Turbolift, Constitution class.jpg|The interior of a {{class|Constitution}} turbolift in 2268
File:Kelvin type turbolift.jpg|The interior of a {{ShipType|Kelvin}} turbolift in [[2233]] of an [[alternate reality]]
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File:Kelvin type turbolift.jpg|The interior of a {{type|Kelvin}} turbolift in [[2233]]
 
File:USS Enterprise (alternate universe) turbolift.jpg|The interior of a turbolift in [[2258]] of the [[alternate reality]]
 
File:USS Enterprise (alternate universe) turbolift.jpg|The interior of a turbolift in [[2258]] of the [[alternate reality]]
 
File:Emergency turbolift, 2364.jpg|The [[emergency turbolift]] to the [[battle bridge]] on a ''Galaxy''-class starship.
 
File:Emergency turbolift, 2364.jpg|The [[emergency turbolift]] to the [[battle bridge]] on a ''Galaxy''-class starship.
File:Turbolift, We'll Always Have Paris.jpg|The interior of a [[24th century]] turbolift aboard a ''Galaxy''-class starship
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File:Turbolift interior, 2364.jpg|The interior of a [[24th century]] turbolift aboard a ''Galaxy''-class starship
File:Ops turbolift.jpg|An exposed turbolift car on [[starbase]] [[Deep Space Nine]]
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File:Ops turbolift.jpg|An exposed turbolift car on [[starbase]] [[Deep Space 9]]
 
File:Intrepid class turbolift.jpg|The interior of a 24th century turbolift aboard an ''Intrepid''-class starship
 
File:Intrepid class turbolift.jpg|The interior of a 24th century turbolift aboard an ''Intrepid''-class starship
 
File:Uss voyager turbolift controlpanel.jpg|The control panel of the turbolift aboard the {{USS|Voyager}}
 
File:Uss voyager turbolift controlpanel.jpg|The control panel of the turbolift aboard the {{USS|Voyager}}
 
 
</gallery>
 
</gallery>
   
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{{bginfo|This may be a joke taken from a well-known ''Star Trek: The Original Series'' blooper which shows the turbolift opening only partially.}}
 
{{bginfo|This may be a joke taken from a well-known ''Star Trek: The Original Series'' blooper which shows the turbolift opening only partially.}}
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[[File:Lwaxana and Odo in turbolift 2369.jpg|thumb|Lwaxana Troi and Odo inside a turbolift in 2369]]
 
[[File:Lwaxana and Odo in turbolift 2369.jpg|thumb|Lwaxana Troi and Odo inside a turbolift in 2369]]
 
In [[2365]], when the {{USS|Enterprise|NCC-1701-D|-D}} scanned the logs from the {{USS|Yamato}}, they contracted a [[computer virus]], which severely affected all critical systems aboard the ship. One of these systems were the turbolifts, and a malfunction resulting in highly increased acceleration rates and tremendous direction shifts, injuring [[Lieutenant]] [[Geordi La Forge]] inside, practically throwing him onto the bridge. ({{TNG|Contagion}})
 
In [[2365]], when the {{USS|Enterprise|NCC-1701-D|-D}} scanned the logs from the {{USS|Yamato}}, they contracted a [[computer virus]], which severely affected all critical systems aboard the ship. One of these systems were the turbolifts, and a malfunction resulting in highly increased acceleration rates and tremendous direction shifts, injuring [[Lieutenant]] [[Geordi La Forge]] inside, practically throwing him onto the bridge. ({{TNG|Contagion}})
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Also in 2368, a collection of [[quantum filament]]s collided with the ''Enterprise''-D, disabling power to many of the main systems, including [[life support]], main engines, and [[computer]] control. At this time, Picard and some children were in a turbolift, and Picard decided to climb the emergency shaft in case the unstable turbolift fell in the shaft. Using a makeshift rope made from optical cable, Picard and the children escaped the doomed turbolift and climbed to the upper decks. ({{TNG|Disaster}})
 
Also in 2368, a collection of [[quantum filament]]s collided with the ''Enterprise''-D, disabling power to many of the main systems, including [[life support]], main engines, and [[computer]] control. At this time, Picard and some children were in a turbolift, and Picard decided to climb the emergency shaft in case the unstable turbolift fell in the shaft. Using a makeshift rope made from optical cable, Picard and the children escaped the doomed turbolift and climbed to the upper decks. ({{TNG|Disaster}})
   
In [[2369]] [[Constable]] [[Odo]] and [[Ambassador]] [[Lwaxana Troi]] were trapped in a turbolift for several [[hour]]s after an [[alien]] [[probe]], later called "[[Pup]]" by [[Miles O'Brien]], damaged several of the station's systems. [[Kira Nerys]] informed Odo not to shape-shift his way out through the [[turboshaft]], as Cardassian turbolifts have exposed [[multi-phase alternating current]] running through the [[positioning mechanism]]. ({{DS9|The Forsaken}})
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In [[2369]] [[Constable]] [[Odo]] and [[Ambassador]] [[Lwaxana Troi]] were trapped in a turbolift for several [[hour]]s after an [[alien]] [[probe]], later called "[[Pup]]" by [[Miles O'Brien]], damaged several of the station's systems. [[Kira Nerys]] informed Odo not to shape-shift his way out through the [[turboshaft]], as [[Cardassian]] turbolifts have exposed [[multi-phase alternating current]] running through the [[positioning mechanism]]. ({{DS9|The Forsaken}})
   
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{{bginfo|The turbolift malfunction in "The Forsaken" was an attempt to save finances. "''I figured putting two people in an elevator has got to save money somewhere,''" explained [[Michael Piller]]. (''[[Captains' Logs Supplemental - The Unauthorized Guide to the New Trek Voyages]]'', p. 54)}}
In [[2372]], the [[Cardassian]] [[terrorism|terrorist]] group the [[True Way]] sabotaged one of Deep Space 9's turbolifts, as part of a scheme to assassinate [[Bajoran]] [[First Minister]] [[Shakaar Edon]]. ({{DS9|Crossfire}})
 
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In [[2372]], the Cardassian [[terrorism|terrorist]] group the [[True Way]] [[sabotage]]d one of Deep Space 9's turbolifts, as part of a scheme to assassinate [[Bajoran]] [[First Minister]] [[Shakaar Edon]]. ({{DS9|Crossfire}})
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{{bginfo|During the development of "Crossfire", the idea of a turbolift falling was thought up by the DS9 writers. The falling turbolift replaced a sequence involving an explosion and a fireball. (''[[Star Trek: Deep Space Nine Companion]]'', pp. 305 & 304)}}
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{{pna-incomplete}}
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{{DS9|Trials and Tribble-ations}}
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{{DS9|Honor Among Thieves}}
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{{DS9|Extreme Measures}}
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{{DS9|The Dogs of War}}
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== See also ==
  +
* [[Elevator]]
  +
* [[Express lift]]
 
* [[Turbolift log]]
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* [[Turbolift record]]
   
 
== Background information ==
 
== Background information ==
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[[Garfield Reeves-Stevens]] explains how, for "Where No Man Has Gone Before", the effect of a turbolift moving between decks in a single shot was achieved; "''It's just a really clever, simple trick, where they just put up a wall, I guess a 'wild' wall, in front of the bridge, and actually shot the turbolift on the bridge. And as soon as the turbolift doors close, then they started the light beams going up the side, just rolled away the wild wall and then when the turbolift doors open, they're there.''" (''[[Starfleet Access]]'' for "Where No Man Has Gone Before", [[TOS Season 1 Blu-ray]] special features)
 
[[Garfield Reeves-Stevens]] explains how, for "Where No Man Has Gone Before", the effect of a turbolift moving between decks in a single shot was achieved; "''It's just a really clever, simple trick, where they just put up a wall, I guess a 'wild' wall, in front of the bridge, and actually shot the turbolift on the bridge. And as soon as the turbolift doors close, then they started the light beams going up the side, just rolled away the wild wall and then when the turbolift doors open, they're there.''" (''[[Starfleet Access]]'' for "Where No Man Has Gone Before", [[TOS Season 1 Blu-ray]] special features)
   
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For usage on ''[[Star Trek: The Original Series]]'', the turbolift was created as a movable unit. "''The whole turbolift module could be moved to another [[corridor]] location,''" [[Robert Justman]] remarked. ({{STTM|1|17|13}})
The presence of only one turbolift accessible from the bridge of the ''Enterprise'' in TOS came under some scrutiny, sometimes being criticized because, if that single turbolift was out of use for whatever reason, it could (and occasionally did) trap the bridge officers on the bridge. ([[text commentary]], ''[[Star Trek: The Motion Picture (The Director's Edition)]]'') [[Gene Roddenberry]] once admitted, "''The one elevator to the bridge ''was'' a mistake, and no emergency exit in sight. Yes, we would correct that [if we were ever to do ''Star Trek'' again].''" (''[[The World of Star Trek]]'', 3rd ed., p. 39) Indeed, in an effort to remedy the situation, two turbolifts were later included in the ''Enterprise'' bridge of ''[[Star Trek: The Animated Series]]'' and the ship's refit configuration, as originally seen in {{film|1}}. ([[text commentary]], ''[[Star Trek: The Motion Picture (The Director's Edition)]]'') The addition of the second turbolift in ''The Animated Series'', an element that was also later planned for inclusion in the ultimately abandoned series ''[[Star Trek: Phase II]]'', was specifically made in response to viewers asking what would happen in the case of a lift break-down. (''[[Star Trek Phase II: The Lost Series]]'', p. 20) The existence of the double turbolifts was represented on schematics of the ''Phase II Enterprise'', akin to a pair of "'Mickey Mouse' ears" atop the vessel's saucer section. ("A New ''Enterprise''", ''Star Trek Phase II: The Lost Series'' central images)
 
   
 
The presence of only one turbolift accessible from the bridge of the ''Enterprise'' in TOS came under some scrutiny, sometimes being criticized because, if that single turbolift was out of use for whatever reason, it could (and occasionally did) trap the bridge officers on the bridge. ([[text commentary]], ''[[Star Trek: The Motion Picture (The Director's Edition)]]'') [[Gene Roddenberry]] once admitted, "''The one elevator to the bridge ''was'' a mistake, and no emergency exit in sight. Yes, we would correct that [if we were ever to do ''Star Trek'' again].''" (''[[The World of Star Trek]]'', 3rd ed., p. 39) Indeed, in an effort to remedy the situation, two turbolifts were later included in the ''Enterprise'' bridge of ''[[Star Trek: The Animated Series]]'' and the ship's refit configuration, as originally seen in {{film|1}}. ([[text commentary]], ''[[Star Trek: The Motion Picture (The Director's Edition)]]'') The addition of the second turbolift in ''The Animated Series'', an element that was also later planned for inclusion in the ultimately abandoned series ''[[Star Trek: Phase II]]'', was specifically made in response to viewers asking what would happen in the case of a lift break-down. (''[[Star Trek Phase II: The Lost Series]]'', p. 20) The existence of the double turbolifts was represented on schematics of the ''Phase II Enterprise'', akin to a pair of "'Mickey Mouse' ears" atop the vessel's saucer section. ("A New ''Enterprise''", ''Star Trek Phase II: The Lost Series'' central images)
Although the turbolift doors were easily operated by a member of the production crew using a pulley (similar to common drapery pulleys), there were occasional accidents. In ''The Motion Picture'', the victims of such incidents included [[William Shatner]] and [[Majel Barrett-Roddenberry|Majel Barrett]], both of whom were caught between doors that were closing too quickly. At times, the doors were also extraneously noisy. (''[[The Making of Star Trek: The Motion Picture]]'', pp. 160-161 & 183)
 
   
In ''The Motion Picture'', part of the ''Enterprise''{{'}}s turbolift was meant to indicate the lift's movement through the ship. Production designer [[Harold Michelson]] explained, "''One thing we did with the elevators was put in a plan of the whole ship and when you press a button a light would move.''" (''[[Star Trek: The Magazine Volume 2, Issue 8]]'', p. 98) This light, a small white dot, represented the turbolift itself, providing a guide to the lift's position. According to [[Daren Dochterman]], the diagram was of the ''Enterprise''{{'}}s ultimately unrealized configuration from ''[[Star Trek: Phase II]]''. ([[audio commentary]], [[Star Trek: The Motion Picture (Blu-ray)|''Star Trek: The Motion Picture'' (Blu-ray)]])
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In ''The Motion Picture'', part of the ''Enterprise''{{'}}s turbolift was meant to indicate the lift's movement through the ship. Production Designer [[Harold Michelson]] explained, "''One thing we did with the elevators was put in a plan of the whole ship and when you press a button a light would move.''" (''[[Star Trek: The Magazine Volume 2, Issue 8]]'', p. 98) This light, a small white dot, represented the turbolift itself, providing a guide to the lift's position. According to [[Daren Dochterman]], the diagram was of the ''Enterprise''{{'}}s ultimately unrealized configuration from ''Star Trek: Phase II''. ([[audio commentary]], [[Star Trek: The Motion Picture (Blu-ray)|''Star Trek: The Motion Picture'' (Blu-ray)]])
   
 
Another schematic of the ''Enterprise'' was incorporated into the back wall of the turbolift aboard the {{USS|Reliant}} in {{film|2}}, presumably because the set of the ''Enterprise'' bridge doubled as that of the ''Reliant''. ([[text commentary]], ''[[Star Trek II: The Wrath of Khan (The Director's Edition)]]'' [[DVD]])
 
Another schematic of the ''Enterprise'' was incorporated into the back wall of the turbolift aboard the {{USS|Reliant}} in {{film|2}}, presumably because the set of the ''Enterprise'' bridge doubled as that of the ''Reliant''. ([[text commentary]], ''[[Star Trek II: The Wrath of Khan (The Director's Edition)]]'' [[DVD]])
   
 
The fact that Gene Roddenberry liked the concept of having discussions in the turbolifts of the ''Galaxy''-class ''Enterprise'' influenced the designers of the ship, who at first considered having an on-bridge transporter for TNG, to ultimately discard that idea. (''[[Starlog (magazine)|Starlog]]'' issue #125, p. 46)
Destroying the ''Enterprise'' bridge for {{film|3}} proved difficult because of the turbolift doors on the set, as they had been made from fiberglass. "''And you don't blow up fiberglass with people nearby,''" noted special effects supervisor [[Bob Dawson]]. He solved this issue by reconstructing the doors with balsa wood. Dawson also fitted the explosives required for the destruction behind the doors. (''[[The Making of the Trek Films]]'', 3rd ed., p. 56; ''[[Trek: The Unauthorized Story of the Movies]]'', p. 97)
 
   
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Similarly, although a monorail was initially considered for transportation within [[Deep Space 9]], the turbolifts were again opted for. "''We had the concept of the turbolifts kinda tying together the whole station,''" said Concept Artist [[Ricardo Delgado]]. (''Deep Space Nine: A Bold Beginning'', [[DS9 Season 1 DVD]] special features) Owing to television's need for speedy plot advancement, a way of maneuvering characters to and from the [[operations center]] (or "Ops") quickly was required, which was why a turbolift was incorporated into the set designed for Ops. (''[[Star Trek - Where No One Has Gone Before]]'', paperback ed., p. 168)
The fact that [[Gene Roddenberry]] liked the concept of having discussions in the turbolifts of the ''Galaxy''-class ''Enterprise'' influenced the designers of the ship, who at first considered having an on-bridge transporter for TNG, to ultimately discard that idea. (''[[Starlog (magazine)|Starlog]]'' issue #125, p. 46)
 
   
  +
Showing turbolifts enter and leave a room was something Production Designer [[Herman Zimmerman]] "always wanted to do." He was able to achieve this goal on ''[[Star Trek: Deep Space Nine]]'', with the turbolift in Deep Space 9's operations center. "''We only had a certain amount of space under the stage that we could work with so one of the criteria for raising a platform was to gain an extra few feet to operate these elevator mechanisms,''" he commented. "''We do see the actors come up out of the stage floor and that proves to be very effective. On other sets that isn't possible so we just see the elevator doors open as we do in ''The Next Generation." (''[[Cinefantastique]]'', Vol. 23, No. 6, p. 29)
== See also ==
 
  +
* [[Turbolift record]]
 
  +
In a scene conceived for the film {{film|8}} but not included in the movie's final version, [[Captain]] [[Jean-Luc Picard]] and [[Lily Sloane]] were to have discovered &ndash; due to [[Borg]] invaders having increased the humidity aboard the {{USS|Enterprise|NCC-1701-E|-E}} &ndash; a mini-[[thunderstorm]] atop a turbolift shaft. The inspiration for this scene came from co-writer [[Ronald D. Moore]] reading about how [[National Aeronautics and Space Administration|NASA]]'s Vertical Assembly Building is so massive that it has its own weather systems, but budget constraints trimmed the scene from the film's script. (''[[Star Trek: The Next Generation Companion]]'', 3rd ed., p. 332)
   
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For {{DS9|Trials and Tribble-ations}}, a 23rd-century turbolift had to be recreated and built as a set by the DS9 art department. The lighting of the turbolift matched that of the turbolifts from TOS, rather than those in TNG. "''We actually put a roller belt with holes in it, and put a stationary light behind it, and literally hand cracked the roller,''" stated [[Herman Zimmerman]]. "''Of course now we do it with a computer chip and a lot of light bulbs that go on and off sequentially that change the floors. But I think the effects department got a kick out of doing it the old way.''" (''[[Cinefantastique]]'', Vol. 29, Nos. 6/7, pp. 76 & 78)
   
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For {{film|12}}, sets for five turbolifts were built on [[Sony Stage 15]]. One such set was connected to each of two separate corridors, with another on the bridge, another in the [[sickbay|medical bay]] and another in the [[lobby]]. [http://www.harryottodesign.com/uploads/3/1/9/9/3199514/9117407_orig.jpg]
   
 
[[de:Turbolift]]
 
[[de:Turbolift]]

Revision as of 16:00, 22 August 2015

AT: "xx"

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File:Constitution class refit, turbolift network.jpg

A map of the turbolift system aboard the refit Constitution-class USS Enterprise

Turbolift in motion

View of a turbolift from the outside

Located on board most starships and space stations, the turbolift, or turbo-elevator, provided both vertical and horizontal transportation for personnel through turboshafts between key sections of a ship. In the 2270s, the turbolift's tactile interface was succeeded by voice command operation.

Turbolift specifications

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The turbolift personnel transport system was a network of inductively powered transport tubes allowing the volume of the ship to be traversed in a high-speed manner.

Turbolift access denied

Turbolift access denied

Many Starfleet turbolifts were comprised of a lightweight duranium-composite framework supporting a cylindrical personnel cab constructed from microfoamed duranium sheeting. Mounted longitudinally along the exterior of the cab were three linear induction motors that provided the motive force. Electromagnetic conduits located along the length of each turboshaft provided power to these motors, allowing accelerations up to ten meters per second squared. (citation needededit) To counter such high acceleration speeds, an inertial dampener was usually installed at the base of the cab to provide crew comfort, eliminating some (although not all) of the acceleration effects. In some Starfleet vessels, a plan of the ship was displayed along the back of the turbolift, allowing for directional assistance in the absence of computer access. Turbolifts could also be locked down in the event of a security incident, blocking access to critical areas of the ship, such as the main bridge. (TNG: "11001001")

NX-class starships needed only a button to be pressed to specify which deck to travel to. (ENT: "Cold Front") Incorporated in the design of Constitution-class turbolifts were small handles on the interior, allowing for transport without the use of voice commands. At some point, it became necessary to use both the handle and to submit a voice command on board Constitution-class ships. (DS9: "Trials and Tribble-ations") Later refits phased out any analog interfaces and featured auditory receivers allowing passengers to use voice commands to direct the turbolift. Upon receipt of the voice command, the command queried the network, allowing for computation of the most optimal route to the destination. Such routes factored in the presence of other turbolifts already in operation. The auditory receivers also automatically scanned for voiceprint authentication, allowing for select personnel access to restricted areas. Turbolifts from the 23rd century also featured communication panels to allow communication with other sections of the ship without the need for a communicator. (TOS: "Elaan of Troyius")

While most starship turbolifts were enclosed, some turbolifts remained open when at rest, in the style of an elevator built in the early-to-mid-20th century. The Cardassians built such a turbolift on Terok Nor when it was in operation, and it was still in use by Starfleet on the renamed Deep Space 9. Once this turbolift was activated, it became enclosed as a precautionary measure. These turbolifts' positioning mechanisms were powered by multi-phase alternating current. In ships and stations that contained turbolift doors that remained closed while not in use, the doors were often unresponsive in low or no power situations.

Turbolift Door forced open

With Voyager at low power, Janeway is forced to open the turbolift doors by hand

In a Galaxy-class starship, turbolifts were regulated by the turbolift control and an average of ten turbolift cars were in service at any one time. Some peak usage times, such as change-of-shift, could call for a doubling of the turbolift cars with only a 22% decrease in efficiency. The reason this was possible was that the turboshaft network was designed with the specific purpose of allowing multi-access loops and thus permitting a flexible route for each turbolift car. (citation needededit)

When battle stations are ordered, all turbolift cars may be subjected to deactivation pending the authorization of the commanding officer. In such cases, personnel are still free to move about the ship via a network of vertical ladders and Jefferies tubes.

While docked at a starbase, the turboelevator network was connected to the network of the adjacent starbase, allowing for easy passage without the use of an umbilical dock. This was accomplished through a connection point located at the upper terminus of turboshaft two, leading from the main bridge. When linked, turbolifts cars could travel freely between the ship and areas of the starbase. (Star Trek: The Next Generation Technical Manual; TOS: "Where No Man Has Gone Before"; Original Series films; Star Trek: The Next Generation)

This may be contradictory to what was seen in "11001001". In that episode, an umbilical was attached to the midsection of the Enterprise with personnel traversing it, but the bow of the ship could not be seen, and thus the aforementioned turboelevator network connection to the starbase was not revealed.
Most of the information is taken from Star Trek: The Next Generation Technical Manual and may not be canon, although a large part of this literature is considered canon. Also, there is not enough evidence from any series to prove these facts as not canon.

Turbolift incidents

In 2287, after the construction of the new USS Enterprise-A, many systems were still nonfunctional, including the warp drive. After shore leave, when Kirk entered the main bridge with Spock and McCoy, Kirk was annoyed by the turbolift only opening partially. (Star Trek V: The Final Frontier)

This may be a joke taken from a well-known Star Trek: The Original Series blooper which shows the turbolift opening only partially.
Lwaxana and Odo in turbolift 2369

Lwaxana Troi and Odo inside a turbolift in 2369

In 2365, when the USS Enterprise-D scanned the logs from the USS Yamato, they contracted a computer virus, which severely affected all critical systems aboard the ship. One of these systems were the turbolifts, and a malfunction resulting in highly increased acceleration rates and tremendous direction shifts, injuring Lieutenant Geordi La Forge inside, practically throwing him onto the bridge. (TNG: "Contagion")

In 2368, a metal parasite infested the Enterprise-D when it destroyed an asteroid about to collide with a planet. This parasite began to ingest the nitrium from all critical systems. One of these systems was the turbolifts, as the circuitry was being broken down as Captain Picard and Lieutenant Commander Data were still inside, although no incident seemed to occur. (TNG: "Cost of Living")

Also in 2368, a collection of quantum filaments collided with the Enterprise-D, disabling power to many of the main systems, including life support, main engines, and computer control. At this time, Picard and some children were in a turbolift, and Picard decided to climb the emergency shaft in case the unstable turbolift fell in the shaft. Using a makeshift rope made from optical cable, Picard and the children escaped the doomed turbolift and climbed to the upper decks. (TNG: "Disaster")

In 2369 Constable Odo and Ambassador Lwaxana Troi were trapped in a turbolift for several hours after an alien probe, later called "Pup" by Miles O'Brien, damaged several of the station's systems. Kira Nerys informed Odo not to shape-shift his way out through the turboshaft, as Cardassian turbolifts have exposed multi-phase alternating current running through the positioning mechanism. (DS9: "The Forsaken")

The turbolift malfunction in "The Forsaken" was an attempt to save finances. "I figured putting two people in an elevator has got to save money somewhere," explained Michael Piller. (Captains' Logs Supplemental - The Unauthorized Guide to the New Trek Voyages, p. 54)

In 2372, the Cardassian terrorist group the True Way sabotaged one of Deep Space 9's turbolifts, as part of a scheme to assassinate Bajoran First Minister Shakaar Edon. (DS9: "Crossfire")

During the development of "Crossfire", the idea of a turbolift falling was thought up by the DS9 writers. The falling turbolift replaced a sequence involving an explosion and a fireball. (Star Trek: Deep Space Nine Companion, pp. 305 & 304)
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DS9: "Trials and Tribble-ations" DS9: "Honor Among Thieves" DS9: "Extreme Measures" DS9: "The Dogs of War"

See also

Background information

In the script of TOS: "Where No Man Has Gone Before", this type of elevator is referred to as "a high-speed cab with many capabilities (to permit development in future episodes)." The script goes on to describe the effect of the turbolift in motion; "We will see flickering lights of the rapidly accelerating ship's elevator passing deck after deck."

Garfield Reeves-Stevens explains how, for "Where No Man Has Gone Before", the effect of a turbolift moving between decks in a single shot was achieved; "It's just a really clever, simple trick, where they just put up a wall, I guess a 'wild' wall, in front of the bridge, and actually shot the turbolift on the bridge. And as soon as the turbolift doors close, then they started the light beams going up the side, just rolled away the wild wall and then when the turbolift doors open, they're there." (Starfleet Access for "Where No Man Has Gone Before", TOS Season 1 Blu-ray special features)

For usage on Star Trek: The Original Series, the turbolift was created as a movable unit. "The whole turbolift module could be moved to another corridor location," Robert Justman remarked. (Star Trek: The Magazine Volume 1, Issue 17, p. 13)

The presence of only one turbolift accessible from the bridge of the Enterprise in TOS came under some scrutiny, sometimes being criticized because, if that single turbolift was out of use for whatever reason, it could (and occasionally did) trap the bridge officers on the bridge. (text commentary, Star Trek: The Motion Picture (The Director's Edition)) Gene Roddenberry once admitted, "The one elevator to the bridge was a mistake, and no emergency exit in sight. Yes, we would correct that [if we were ever to do Star Trek again]." (The World of Star Trek, 3rd ed., p. 39) Indeed, in an effort to remedy the situation, two turbolifts were later included in the Enterprise bridge of Star Trek: The Animated Series and the ship's refit configuration, as originally seen in Star Trek: The Motion Picture. (text commentary, Star Trek: The Motion Picture (The Director's Edition)) The addition of the second turbolift in The Animated Series, an element that was also later planned for inclusion in the ultimately abandoned series Star Trek: Phase II, was specifically made in response to viewers asking what would happen in the case of a lift break-down. (Star Trek Phase II: The Lost Series, p. 20) The existence of the double turbolifts was represented on schematics of the Phase II Enterprise, akin to a pair of "'Mickey Mouse' ears" atop the vessel's saucer section. ("A New Enterprise", Star Trek Phase II: The Lost Series central images)

In The Motion Picture, part of the Enterprise's turbolift was meant to indicate the lift's movement through the ship. Production Designer Harold Michelson explained, "One thing we did with the elevators was put in a plan of the whole ship and when you press a button a light would move." (Star Trek: The Magazine Volume 2, Issue 8, p. 98) This light, a small white dot, represented the turbolift itself, providing a guide to the lift's position. According to Daren Dochterman, the diagram was of the Enterprise's ultimately unrealized configuration from Star Trek: Phase II. (audio commentary, Star Trek: The Motion Picture (Blu-ray))

Another schematic of the Enterprise was incorporated into the back wall of the turbolift aboard the USS Reliant in Star Trek II: The Wrath of Khan, presumably because the set of the Enterprise bridge doubled as that of the Reliant. (text commentary, Star Trek II: The Wrath of Khan (The Director's Edition) DVD)

The fact that Gene Roddenberry liked the concept of having discussions in the turbolifts of the Galaxy-class Enterprise influenced the designers of the ship, who at first considered having an on-bridge transporter for TNG, to ultimately discard that idea. (Starlog issue #125, p. 46)

Similarly, although a monorail was initially considered for transportation within Deep Space 9, the turbolifts were again opted for. "We had the concept of the turbolifts kinda tying together the whole station," said Concept Artist Ricardo Delgado. (Deep Space Nine: A Bold Beginning, DS9 Season 1 DVD special features) Owing to television's need for speedy plot advancement, a way of maneuvering characters to and from the operations center (or "Ops") quickly was required, which was why a turbolift was incorporated into the set designed for Ops. (Star Trek - Where No One Has Gone Before, paperback ed., p. 168)

Showing turbolifts enter and leave a room was something Production Designer Herman Zimmerman "always wanted to do." He was able to achieve this goal on Star Trek: Deep Space Nine, with the turbolift in Deep Space 9's operations center. "We only had a certain amount of space under the stage that we could work with so one of the criteria for raising a platform was to gain an extra few feet to operate these elevator mechanisms," he commented. "We do see the actors come up out of the stage floor and that proves to be very effective. On other sets that isn't possible so we just see the elevator doors open as we do in The Next Generation." (Cinefantastique, Vol. 23, No. 6, p. 29)

In a scene conceived for the film Star Trek: First Contact but not included in the movie's final version, Captain Jean-Luc Picard and Lily Sloane were to have discovered – due to Borg invaders having increased the humidity aboard the USS Enterprise-E – a mini-thunderstorm atop a turbolift shaft. The inspiration for this scene came from co-writer Ronald D. Moore reading about how NASA's Vertical Assembly Building is so massive that it has its own weather systems, but budget constraints trimmed the scene from the film's script. (Star Trek: The Next Generation Companion, 3rd ed., p. 332)

For DS9: "Trials and Tribble-ations", a 23rd-century turbolift had to be recreated and built as a set by the DS9 art department. The lighting of the turbolift matched that of the turbolifts from TOS, rather than those in TNG. "We actually put a roller belt with holes in it, and put a stationary light behind it, and literally hand cracked the roller," stated Herman Zimmerman. "Of course now we do it with a computer chip and a lot of light bulbs that go on and off sequentially that change the floors. But I think the effects department got a kick out of doing it the old way." (Cinefantastique, Vol. 29, Nos. 6/7, pp. 76 & 78)

For Star Trek Into Darkness, sets for five turbolifts were built on Sony Stage 15. One such set was connected to each of two separate corridors, with another on the bridge, another in the medical bay and another in the lobby. [1]