RIGHTEOUS INDIGNATION TECHNICAL
Deathwatch Gladius Frigate

Dimensions: 1.6 km long, 0.3 km abeam at fins approx.
Mass: 6 megatonnes approx.
Crew: 26,000 crew; approx.
Accel: 4.5 gravities max sustainable acceleration.
Assets: Thunderhawk Gunships, Deathwatch Land Speeders, Deathwatch Kill-Teams, Classified Inquisitorial assets

The Gladius Class Frigate is part of the Space Marine Fleet, fulfilling a role similar to that of the Sword Class Frigate in the Imperial Navy.

The ship is crewed mainly by chapter serfs, with only a few squads of 5-10 Space Marines onboard, commonly found on the bridge, in their cells, combat-pens, or at other command posts around the ship.

The Gladius is armed with a mid-sized weapons battery, much like the Sword class, but its engines are about twenty percent more powerful than the Sword. This enables the Gladius to take advantage of the enemy's movements, darting into holes left in the battle line, and using its weapons batteries to good effect. 
The ship is shielded as well as any other escort, but due to the nature of its role in combat, has an excellent turret array for its size, comparable to that of a standard Imperial Navy cruiser.

Its laser-based weapons batteries provide equivalent fire power to those of the less reliable plasma-based alternatives, and are able to fire to both sides, or forward with full strength. Its engines are powerful, yet simple enough to be maintained by an artificer with minimal training. They are regarded as reliable even in extreme conditions.

Being an escort, the Gladius is expected to come under fire, and so is designed with this in mind. Its bulkheads are thicker than would be expected, and the beams and supports that hold the ship together have redundant copies nearby, that will take the load if the primary beam or support fails. Due to this, the Gladius can take more punishment than would be expected for a ship of its diminutive size.

The Righteous Indignation has been heavily modified with many classified and experimental elements.