Based on ancient STC technology, the jump pack is affixed to a warrior in power armour, drawing energy from the suit’s own power pack to augment its high speed motors. Intake vents on the top of the pack greedily suck in air to feed the jets, while the turbine blades expel a long plume of vapour. Even with the aid of the power armour’s energy coils the jump pack has its own fuel supply, such is the power required to send a fully armed and armoured seven-foot tall warrior into the sky.

跳躍背包是基于古老的STC技術(shù)制成的，它被附著在動力甲上，從動力背包中抽取能量以提升其高速馬達(dá)（的推力）。位于背包頂端的進(jìn)氣口會貪婪地吸入空氣，供噴氣機使用，同時渦輪葉片會噴出一道蒸汽長柱。盡管有動力甲能量線圈提供協(xié)助，但跳躍背包也有自己的能量供應(yīng)——這便是將一名全副武裝的七英尺高戰(zhàn)士送入空中所需的能量。

A jump pack is usually good for a dozen or so ‘jumps’ before it must be refuelled or discarded. This is usually enough to get a Space Marine into the fray, or allow him to descend from the sky, striking deep behind enemy lines. An empty jump pack can be a liability, and even with his prodigious strength a Space Marine can find it impedes his ability in combat. For this reason, the jump pack commonly incorporates a quick-release mechanism on the battle-brother’s chest plate. Keyed to his specific power armour gauntlet, it is a lock that can be opened with a touch, allowing him to shrug free of the pack in moments.

在必須重新加注燃料或被解綁擺脫之前，跳躍背包通常能進(jìn)行12次左右的“跳躍”。這通常就足以將一名星際戰(zhàn)士送入激戰(zhàn)，或允許其從空中降落，對敵軍戰(zhàn)線后方進(jìn)行深入打擊。耗盡燃料的跳躍背包則是一件累贅，哪怕是擁有驚人力量的星際戰(zhàn)士們，也會發(fā)現(xiàn)這件累贅妨礙了自己戰(zhàn)斗能力。因此，跳躍背包上通常也被整合了一個位于戰(zhàn)斗修士胸甲上的快速解脫裝置。該裝置與動力甲的某只手鎧相連，星際戰(zhàn)士輕輕一碰便能解開束縛帶，片刻之內(nèi)便甩掉跳躍背包。

Though jump packs are an ancient technology that has served the Adeptus Astartes for millennia, the Space Marine Chapters limit their use to specialist formations within each company. In battle, these Assault Marines are ideal for striking at the flanks of the enemy or hitting behind their lines. Many heretics and foul xenos have met their end at the hands of jump pack equipped Space Marines, their final moments watching transfixed as armoured warriors descend from the sky on shimmering vapour trails.

雖然跳躍背包是一項服務(wù)了阿斯塔特修會數(shù)千年的古老科技，但星際戰(zhàn)士戰(zhàn)團(tuán)僅限各個連隊中的專門編隊使用它。在戰(zhàn)斗中，這些突擊戰(zhàn)士是進(jìn)攻敵軍側(cè)翼或襲擊后方的理想選擇。很多異端分子和惡爛的異形就是死于裝備了跳躍背包的星際戰(zhàn)士之手——在生命中的最后時刻，它們目瞪口呆地看著裝甲戰(zhàn)士拖著閃閃發(fā)光的蒸汽尾跡從天而降。

Jump packs are also used to make high altitude battlefield insertions, where Assault Marines will leap from Stormraven Gunships or other Space Marine aircraft, their packs slowing their fall at the last moment. Space Marines can also use their packs to leave battle in the same way, leaping up straight into the air and into hovering transports or even grabbing onto the side of a Landspeeder or Stormraven as it screams across the battlefield. In this way, a Space Marine with a jump pack can throw himself out into space in the upper atmosphere of a world, guide himself down through swirling clouds and enemy fire to come crashing to ground near a high priority target. Then, once he has destroyed his target with either a well-placed melta-charge or several blows of his chainsword, he can leap once more into the sky, vanishing into the fog of war before the enemy has even reacted to his arrival.

跳躍背包也適用于戰(zhàn)場高空插入行動，在此類情況中，突擊戰(zhàn)士們從風(fēng)暴鴉炮艇或其他星際戰(zhàn)士飛行器中一躍而下，跳躍背包會在最后時刻減緩其降落速度。星際戰(zhàn)士也能利用跳躍背包，用同樣的方式脫離戰(zhàn)斗——垂直向上跳入空中，進(jìn)入懸浮著的運輸機內(nèi)，甚至是在蘭德速攻艇或風(fēng)暴鴉從戰(zhàn)場上呼嘯而過時抓住其側(cè)面。憑此方法，裝備了跳包的星際戰(zhàn)士也能把自己拋到星球上層大氣之外的太空中，引導(dǎo)自身穿過漩渦云層和敵人的火力，在某個高優(yōu)先級目標(biāo)附近落地。在用恰當(dāng)放置的熱熔炸彈或鏈鋸劍的數(shù)次劈砍消滅目標(biāo)之后，他就能再次躍入空中，在敵人對其到來做出反應(yīng)之前，便消失在戰(zhàn)爭迷霧中。

Many Space Marine commanders personally favour the use of a jump pack, especially those that seek out personal combat with the foe. A jump pack allows such a hero to leap across the battlefield far faster than he could run, ensuring he is always in the thick of battle. Nowhere is safe from the Space Marine hero, and he can use his pack to leap up onto battlements, over massed enemy formations and past formidable trench-works with equal ease. If the hero can see his foe then he can reach them, and with a roared challenge can charge upon wings of smoke and fire.

很多星際戰(zhàn)士指揮官自身也偏好使用跳躍背包，尤其是尋求親自上陣殺敵的那些。裝備了跳躍背包后，這些英雄能以遠(yuǎn)快于奔跑的速度躍過整片戰(zhàn)場，確保自己總是位于戰(zhàn)況激烈處。在這些星際戰(zhàn)士英雄們面前，敵人沒有可供安全躲藏之地，而且前者們還能用跳躍背包飛到戰(zhàn)場上方，無論是躲開密集的敵軍編隊，還是穿過可怖的塹壕工事，都同樣輕松。如果看到了自己的敵人，英雄們就會趕到其身旁，他們會怒吼著發(fā)出挑戰(zhàn)，張開煙霧和烈火組成的雙翼猛沖上去。

Jump packs are a symbol of the might of the Adeptus Astartes, and many are ornately crafted with intricate gilt-work or even unfurled wings. The sight of scores of power armoured giants arcing over a battle is an awe inspiring sight, enhanced by the image of glowing wings and billowing clouds of fire upon which the warriors seem to walk. An enemy witnessing such a grand and terrible vision can be left with no doubt he faces the Angels of Death.

跳躍背包是阿斯塔特修會強悍力量的一種象征，其中很多都被華美地鍍金加工過，甚至帶有展開的翅膀狀飾品。數(shù)十名身披動力甲的巨人從戰(zhàn)場上方沿弧線飛躍，這是一副令人敬畏的景象；而戰(zhàn)士們張開發(fā)光的翅膀，似乎行走于滾燙火云之上的場景，更是加深了這種印象。當(dāng)一名敵人目睹如此壯觀且恐怖的場景時，毫無疑問，他將要面對的就是死亡天使。