Search
Cookie Usage Statistics Colour Key Sudden Death Monthly Poll Caption Comp eMail Author Shops
Ships Fleets Weaponry Species People Timelines Calculators Photo Galleries
Stations Design Lineage Size Charts Battles Science / Tech Temporal Styling Maps / Politics
Articles Reviews Lists Recreation Search Site Guide What's New Forum
8472 Ships
Bioship Planetbuster
Bajoran Ships
Assault Ship Fighter Emissary Kendra Pagh Prophet Solar Sail Additional
Borg Ships
Cube Probe Sphere Tactical Cube Transwarp Prototype Yacht
Cardassian Ships
Dreadnought Freighter Galor Hideki Keldon
Dominion Ships
Breen Frigate Attack Ship Battlecruiser Battleship Dreadnought Karemma Ship
Federation Ships
Air Tram Akira Ambassador Antares Argo Centaur Challenger Cheyenne Class F Shuttle Constellation Constitution Constitution Daedalus Danube Defender Defiant Delta Flyer Endgame Nova Endgame Shuttle Excelsior Federation Class Raider Scout Trainer Freedom Gage Galaxy Galaxy Yacht Griffin Hermes Holo Ship Intrepid Kelvin Luna Miranda Nebula New Orleans Niagara Norway Nova Oberth Olympic Orbital Shuttle Peregrine Polaris Prometheus Ptolemy Raven Refit Galaxy Rigel Saber Saladin Shelley Sovereign Sovereign Yacht Soyuz Springfield Steamrunner Sydney Travel Pod Trident Type 3 Shuttle Type 6 Shuttle Type 7 Shuttle Type 8 Shuttle Type 9 Shuttle Type 10 Shuttle Type 11 Shuttle Type 15 Shuttle Type 18 Shuttle Warp Sled Wells Work Bee Yeager Additional
Ferengi Ships
D'Kora Additional
Human Ships
Ares Conestoga DY-100 Intrepid J Class Neptune NX Class NX Test Ship Saturn V SS Enterprise The Phoenix Type 0 Shuttle USS Enterprise Valiant Y Class Additional
Kazon Ships
Raider Predator Additional
Klingon Ships
B'rel D'tai D-5 D-7 Early Bird of Prey K'pak K'T'Inga Bird of Prey Cargo Ship Tanker Negh'var Raptor Regency Voodieh Vor'cha Additional
Romulan Ships
D'Deridex Early Bird of Prey Narada Norexan Bird of Prey D7 Science ship Scout Shuttle Scimitar Scorpion Additional
Son'a Ships
Battleship Collector Destroyer Additional
Suliban Ships
Cell Ship Module Ship Salvage Ship Additional
Talarian Ships
Observation Ship War Ship Additional
Vulcan Ships
D'Kyr Sh'Raan Suurok Vahklas Lander Additional
Xindi Ships
Aquatic Cruiser Arboreal Ship Insectoid Assault Ship Insectoid Fighter Insectoid Warship Primate Ship Primate Shuttle Reptilian Warship Additional
Miscellaneous Ships
Dauntless Doomsday Machine Kumari class Angosian Ship Cravic Ship Yonada Hirogen Ship Husnock Ship Krenim Patrol Krenim Timeship Krenim Warship Malon Ship Mawasi Cruiser Eymorg Ship Nihydron Ship Pralor Ship Promellian Battlecruiser Tarellian Ship Early Tholian Ship V'Ger Whale Probe Varro Ship Zahl Ship Additional

Tractor Beams

NotesImages
Universe : Prime Timeline
Name : Tractor Beams1

One requirement for all Starfleet vessels is the ability to manipulate objects in space. Typically this will involve towing other vessels or holding sensor probes in place, but modifying the course of asteroids or space debris is also an option.

To accomplish this, Starfleet vessels are equipped with one or more tractor beam emitters.2
These employ superimposed subspace/graviton force beams which focuses interference patterns on a remote object. This results in significant spatial stress being imposed on the object; by controlling the focal point and interference patterns of the beam it is possible to use this stress pattern to place either a repelling or attracting force on the object.

Power for the tractor beam emitters is provided by variable phase graviton polarity sources feeding sub-cochrane subspace field amplifiers. Phase accuracy of less than 2.7 arc-seconds per millisecond is required for precise control of a tractor beam. Use of a tractor beam can involve placing significant stress on both emitter and target, and vessels with low structural strength can be damaged by a tractor beam. Because of the potential damage to a vessel using a tractor beam, all Starfleet tractor emitters are attached directly to the skeletal frame, and are protected by the structural integrity field system of the craft.3


All Starfleet vessels are equipped with at least one tractor beam emitter, generally placed so it can tow an object which is situated behind and below. Vessels of Runabout size or above are fitted with more than one emitter - large starships having enough to ensure all-round coverage.

Colour key

Canon source Backstage source Novel source DITL speculation

References

# Series Season Source Comment
1 TOS 1 Tomorrow is Yesterday
2 Generic canonical information
3 Star Trek The Next Generation Technical Manual Page 89-90
Series : TOS Season 1 (Disc 5)
Episode : Tomorrow is Yesterday
Source : Generic canonical information
Book : Star Trek The Next Generation Technical Manual
Comment : Page 89-90


© Graham & Ian Kennedy Page views : 17,288 Last updated : 1 Jan 1970