Photon Torpedoes
幻游百科,影视科幻的百科全书
Photon Torpedoes
武器介紹： photon torpedo (光雷)
聯邦星艦所使用的戰術性武器。光雷裝有少量的物質與反物質，並用磁罐束縛住正反物質。是以曲速發射的導向飛彈。
當船艦處於曲速狀態時，光雷是一般選用的武器，因為它並不會因為光速而受限。光雷的彈頭可以移除，成為探測用的高速小飛彈、傳送小物品、甚至當作太空中的棺材。銀河級星艦能夠在一個發射管中同時發射 10 枚光雷，每枚光雷瞄準不同的目標。銀河級星艦一般裝載 275 枚光雷。
技術手冊之 光雷篇
光子魚雷 PHOTON TORPEDOES
光炮在曲速時，是幾乎沒有戰術價值的。當大量種族都對當地星際衝突相當敏感，其中甚至有些被視為具威脅性時，一個具曲速能力的防禦武器被證實是必要的。初步核子飛彈是21世紀中期第一個被研發出來的，是碎片清除設備，獨立的檢測火箭，和防禦反制科技的副產品。
核融合爆炸物持續發展直到22世紀後半，成為更輕，更快的兵器。後來再發展第一枚真正的光子魚雷時，測量物質∕反物質（M∕A）爆炸變因的可靠技術一直困擾著星聯的工程師，特別是在推進技術更臻成熟時。表面上看來，問題似乎很容易解決，尤其經過一些早期M∕A引擎的悲慘爆炸。問題的本身隱藏在光雷彈頭的安定性，當多數曲速引擎都是因反物質儲藏槽的外洩而毀壞在相對高速下，看來實際上的例子穩定率仍然相當低。
2215年，兩種型式的光雷同時開始研發。第一種是簡單的1：1M∕A碰撞器構成六塊冷凍重氫，被碳—碳碟支撐著。由微融合啟動器啟動而成六個相等的磁力空穴，還有反重氫懸浮體，當重氫塊滑入空槽，能量便被牽引在這磁力場中，然後再突然釋放。如此穩定性以一個防衛武器來說被認為是可以接受的。而被放在所有星聯的大型星際艦艇上。當光雷可以在發射後模糊的滑行，他的最大射程由於容納立場的先天穩定性極限而只有750000公里。
多功能支持引擎並不是真正的曲速引擎，因為它的物理體積太小，只有最小的M∕A 反應器的1∕12。相當是一個微小的M∕A能源電池，足以維持支撐線圈並作出一個力場，來保持從曲速船艦發射時的速度。這個電池是20公分直徑，50公分長的圓筒，可以在射程內支持一個狹窄的曲速力場，但完全不可能加上比原來還多的途徑力場。最大巡航速度遵行下面的方程式Ｖmax＝Ｖ1＋0.75Ｖ1∕Ｃ，Ｖ1表發射速度。其他飛行模式也影響射出情況。假如以低推進動力時發射，線圈將加速至3∕4倍光速以上的亞光速。若以高次光速下發射，光雷仍不可能進入曲速，但會保持在高相對速度。如果必要，最大射程可已藉減低爆炸威力來達成，也就是支持引擎將使用部分引爆反應物。
一但經由光學資料網和可中途改變的子空間連結下達彈道指示時，光雷的鎖定及導引系統將傳達給支撐器來規劃最合適的飛行路徑至目標物。
實際的發射程序是在兩具發射管中，前方的在連接脊上的第25層甲板，後方的則在曲速引擎支撐翼上方的第35層甲板。發射管在四具光雷裝填器的尾端，也就是一次可以替四枚光雷注入燃料並放入發射管。每具裝填器可同時放入一枚光雷至發射管來齊射。前後兩具發射器，長30公尺，由規格化的tritanium和sarium farnide製成。它上面帶有磁性力場感應線圈和供應支撐器最初動力的發射輔助氣體發電機。發射後，將由急速殺菌器清除表面殘留物，發射器也會被重置以等待新的光雷裝填。在事件中假設光雷以充填待命，而星艦取消紅色警戒的話，光雷彈頭燃料將會退出並被送回儲藏庫，發射管能源也會關閉。
兩具發射器最多均可充填10枚光雷並同時發射。這種情況下，所有的光雷均可由一枚推動而緊連著射出發射管直到約150公尺處。到達分散點時，各自的控制程式將接管飛行鎖定控制系統。這表示同時可對多目標發動攻擊。
製造曲速防禦武器的科技同時也等於製造了先進的曲速遙測火箭。在275枚制式光雷中有1∕4可加裝檢測儀，訊號處理器，測距系統來射向附近目標。典型應用包括星系研究，和戰略性偵查。
The basic photon torpedo design was developed by Star Fleet in 2271. Variable amounts of matter and antimatter are broken into many thousand minute packets, effectively increasing the annihilation surface are by three orders of magnitude, from the original design, developed in 2215. The two components are bot held in suspension by powerful magnetic field sustainers in the casing at the time of torpedo warhead loading. They are held in two separate regions of the casing, however, until just after torpedo launch, as a safety measure. The suspended component packets are mixed, though they still do not come into direct contact with one another because of the fields surrounding each packet. At a signal from the onboard detonation circuitry, the fields collapse and drive the materials together, resulting in the characteristic release of energy. While the maximum payload in a standard photon torpedo is only about 1.5 kilograms, the released energy per unit time is actually greater than calculated for a Galaxy class antimatter pod rupture. The multimode sustainer engine is not a true warp engine due to it's small physical size. Rather, it is a miniature M/A fuel cell, which powers the sustainer coils to grab and hold a hand-off field from the launcher tube, to continue at warp if launched during warp flight by the starship. The cell, a cylinder 20 cm in diameter and 50 cm in length, is limited to a narrow warp field frequency range and cannot add more than a slight amount of power to the original hand-off field. The maxium crusing velocity will follow the formula Vmax=VI+0.75VI/c, where VI is the launch velocity. Other flight modes are triggered according to initial launch conditions. If launched during low-impulse flight, the coils will drive the torpedo up to a 75% higher sublight velocity. If launched at high sublight, the sustainer will not cross the threshold into warp, but will continue to drive the torpedo at high relativistic velocities. If required, the maximum effective range can be extended, but with a loss of detonation yield, as the sustainer engine draws reactants from the M/A tanks. The basic external configuration of the photon torpedo carried onboard Deep Space 9 and its attached starships has changed little from 2271 to 2375. The body is an elongated eliptical tube fabricated from gamma-expanded duranium and a plasma-bonded tritanium outer skin. The current casing measures 2.1 by 0.76 by 0.45 meters and masses 186.7 kilograms dry weight, slightly less than the previous design. Penetrations by phaser cutter are still provided for warhead reactant loading, hardline ODN connections, and propulsion-system exhaust grills. The standard internal components include deuterium and antideuterium supply tanks, central combiner tank, and their respective magnetic suspension components; target acquisition, guidance, and detonation assemblies; and warp sustainer engine. The hafnium-titanide supply and combiner tank shells have an increased capacity of 5 percent, resulting in a slightly higher explosive yield, now rated at 18.5 isotons. Reduced optronics component complexity had driven the tankage increase. The warp sustainer engine benefits somewhat from the increased tankage in the form of increased range, to an upper limit of 4,050,000 kilometers, depending on maneuveraving capability balanced against sustained power flight time. This is only applicable to firings from starships at warp. In launches from Deep Space 9, the initial velocity remains at high sublight, and will never reach warp 1.
