The T-Type is a heavy command module that uses an advanced version of Nephelium gravity tech called the PGR (projected gravity ribbon). The PGR is a wide, flat beam of concentrated Nephelium gravity waves, and the device that fires it is always rotating, creating a ribbon-like appearance. This beam points artificial gravity at its target, using the same technology as U-Type’s drop tubes but external to the ship. When Nephelium torpedoes are fired into the PGR beam, the beam’s target overrides the guidance system, and the artificial gravity massively boosts the torpedoes’ acceleration toward the target. The PGR device runs all along the center of the long section of the T, with the beam firing from the top of the intersection where the top bar section of the T meets the long section. The rest of the top bar of the T is bank after bank of torpedo tubes, and when the PGR is firing at a target, the gunners in the T-Type fire all the torpedoes into the beam, which both focuses them at a small target on an enemy ship and accelerates them to do far more damage. Craft used by Divers, the U-Type’s fighter pilots who are trained and equipped to handle extreme g-forces, can also hitch rides on the PGR beam, allowing for devastating dive bombing runs by Divers who were skilled and fearless enough to pull away at the very last moment. All the successful missions to capture or destroy Feron Hives used these T-Type/U-Type joint strikes to supplement the main line of Venture-class battleships. Most famously, a group of T-Types and U-Types singlehandedly took out the weapon segment of the Fourth Fleet’s Hive, the Warmaster, in the Battle of Horseshoe Nebula. The horseshoe became a symbol of pride among Isan veterans, with many getting horseshoe shoulder tattoos.

The T-Type is the Isan’s largest command module. Its long section measures 700 yards, with a diameter of 100 yards. Each “bar” at the top of the T measures 200 yards, also with a 100-yard radius. Gravity is centered through the central axis of the long section, meaning that the decks further “down” are at either tip of the bar section, and “up” always points to the housing of the PGR device, whose housing and particle accelerator runs along the central axis for the entire length of the section. The T-Type has two main couplings, one at each tip of the bar section. The T-Type’s main engineering is at the back of the long section, and, like the I-Type and the U-Type, it can retract the mini-exhaust ports at that end to mount a D-Type to increase its engine power or provide more energy for the PGR. The T-Type also has two satellite engineering crews near the tip of each end of the bar section, with engines connected to more banks of mini-exhaust ports pointed toward the rear, allowing both secondary engines to fire in unison to increase acceleration while the PGR is offline. When firing the PGR, these engines are needed to help power it. D-Types can also be connected behind these engines, and with three D-Types, the ship gets a massive speed boost while the PGR is offline and far more power for the PGR, increasing its range from close to close-medium. The front or top of the T’s bar, the direction pointing the same way as the PGR, has row after row of torpedo tubes. These Nephelium torpedoes are the same as the ones used in other Isan modules and function normally without the PGR, but their main purpose is to fire volley after volley as rapidly as possible into the PGR beam to tear through whatever’s down range, no matter how heavy its armor. This section of the ship is dotted with point-defense cannons, but it eschews full-size turrets in favor of relying on torpedoes for heavy firepower. The outer hull of the long section has a few batteries of light turrets in addition to many point-defense cannons, but it can’t use heavy turrets because they’d draw too much energy. If admirals commanding a T-Type need heavy turrets, they attach O-Types or rely on escorts from other Isan capital ships.

The T-Type module is a glass cannon designed to deliver critical damage to even the largest, most heavily armored enemy ships, whether Feron-built or captured from the Malleon. While the Malleon railgun can do more damage faster, it needs to line up its shots perfectly. A T-Type only needs to get in range to force an enemy ship to flee from the PGR or suffer massive hull damage. Because the T-Type needs to divert significant power away from its engines, enemies have a chance to run, but only if they react quickly. (If the T-Type has multiple D-Types attached, it can fire the PGR while moving, eliminating this weakness.) In terms of histagal doctrine, commanders can use a basic configuration with no D-Types and small O- and X-Type stacks attach and rely on support craft to protect the slow-moving, lightly armored T-Type. This works well in conjunction with ships built around the balanced U-Type, especially because the U-Type’s “Diver” fighter pilots can hitch a ride on the PGR beam to accelerate into lightning-fast dive-bomber runs. But with D-Types attached and larger stacks attached to its couplings, ships built around the T-Type become much faster and better able to defend themselves, leaving them less reliant on other capital ships for support. Some admirals have designed even more exotic configurations, such as putting I-Types at the couplings meant for D-Types, then putting the D-Types at the end of those. Swiss Army Knife designs like this allow creative admirals to field ship configurations that the enemy can’t anticipate or counter effectively because they don’t even know what to make of them.