After retreiving a set of fragmentary STC print outs dealing with Gravity-based weapon systems, I threw my group a new ship upgrade, a new component and a new weapon system. Figured some of you might like the look of them as well. I haven't added SP, as these have been introduced into an existing game where the group can basically purchase them on the cheap from the local Forge World, given they, you know, recovered a bunch of STC fragments and their requested payment was the ability to get as many of these as needed.

Gravitic Accelerators
Ship Upgrade

The launch bays on this vessel have been retrofitted with gravitic launch tubes, allowing attack craft to be launched with incredible speed and reliability. Every point of power assigned to this upgrade (to a maximum of two) increases the speed of squadrons launched from one launch bay on the turn they are launched by 2. Any number of launch bays can be affected by this upgrade with the power being assigned at the start of the round. This extra speed does not count against the maximum range of a squadron.

Poor quality: Each point of power only increases speed by 1
Good quality: Up to three power can be spent to increase speed
Best quality: Up to five power can be spent to increase speed

Cargo Web
Supplemental Component
Power: 2
Space: 1

This component projects webs of gravitic force, allowing for the swift loading of cargo. Canny captains can use the shifting webs to slow or even stop small craft and incoming torpedoes. This component grants +25 on all Trade Achievements as well as a single re-roll each round on turret rolls.

Hecatonchire Missile Accelerator
Weapon system (Macrocannon)

Only recently rediscovered, the Hecatonchire Missile Accelerator system uses gravitic accelerators to literally hurl clusters of low yield plasma missiles at the enemies of the Imperium. While each individual missile may not have the stopping power of a standard Macrocannon shell, in the numbers fired they are deadly.

Power: 6
Space: 3
Strength: 7
Damage: 1d10 + 1
Crit: 5
Range: 6
Special:
Full Spread: Due to the sheer numbers of missiles fired, the Hecatonchire Missile Accelerator reduces all penalties accrued for Evasive Manoeuvrers by 2 degrees.
Independant Targetting System: The Hecatonchire's targetting system is poorly understood by the Priesthood of Mars, to say the least, and thus far it has not been able to be neatly patched into other ship systems. The Hecatonchire cannot be combined as part of a salvo.