The GA-TL1 Longsword-class Interceptor is the main single ship of the United Stellar Republic, and is a mainstay starfighter, filling a variety of roles simultaneously. Described as both a fighter and an interceptor, the Longsword is intended to engage enemy fighters, dropships, and intrusion vehicles that are en route to attack SRSC capital ships. The Longsword has been seen performing a variety of roles, making for an extremely versatile craft, and is relatively inexpensive to produce.

The Longsword's main weapons are 110mm rotary cannons, as well as 120mm ventral guns, for dog-fighting fighters in space and are great for strafing ground targets when the need arises. This versatile fighter can be armed with an assortment of secondary weapons systems including ASGM-10 Missiles, bombs, Moray space mines, Scorpion missiles, and can even heft a single Shiva-class Nuclear Missile.

The Longsword utilizes two main fusion engines which are discernible on the exterior of the craft. Their precise nature is not known, but they are able to function in space and they are strong enough to reach Earth's escape velocity. They are fueled by conventional fuel. There are multiple RCS points for maneuvering. Like all other engines, the Longsword's engine will begin to overheat if pushed beyond the regular usage of the craft.

The D77-TC Pelican is mainly used for the rapid insertion and extraction of ground troops. They may deliver vehicles and vital equipment to the battlefield when required. The D77-TC has been in service for over fifty years, and is the primary tactical support aircraft of the SRSC. The Pelican is a multi-role aircraft; it is fully capable of atmospheric flight and can land almost anywhere without difficulty.

The Pelican is also capable of limited spaceflight, which the SRSC uses as a primary method of delivering troops to the surface from orbit. Standard armament consists of one Class III externally powered projectile weapon at the bow of the craft, and one Class I gas-operated projectile weapon mounted at the rear, in the extended crew area. More heavily armed variants do exist, with multiple and more powerful weapons.

It is equipped with a complement of point-defense guns, Archer missile pods, and a lengthened Magnetic Accelerator Cannon for additional support. It lacks a vehicular deployment bay, but it's heavier armament can handle enemy fighters and larger vessels. When fielded in larger numbers, Strident-class frigates can screen a formation, engaging engaging frigates and destroyers while allowing more powerful SRSC destroyers and cruisers to focus fire on larger enemy cruisers and carriers.

At 1192 meters long, Marathon-class heavy cruisers are approximately three times the length of a SRSC frigate. They are equipped with thick layers of Titanium-A armor, and are able to sustain far greater damage than any SRSC frigate or destroyer. Due to their size, durability and firepower (2 MACs as well as dozens of oversized Archer Missile pods), these massive vessels primarily serve as flagships for SRSC fleets.

The Phoenix-class is 2.5 km long, making it one of the largest known SRSC ships in the organization's naval history.

The Phoenix-class colony ships were designed to transport thousands of colonists from Earth, or one of the other Inner Colonies, as well as terraforming equipment to alter the existing atmosphere and/or biosphere to become compatible with human habitation. Once the terraforming is completed, the colonists settle the planet. On at least one instance, a colony ship was decommissioned to aid in the development of a colony.

The Phoenix-class colony ship, has been modified into warships such as with the SRSC Warm Winter. This new variant is designated as a Phoenix-class carrier. The refitted ships carry vehicles, troops, and supplies as support for ground forces. It also carries the resources necessary to build bases.

Once converted, a Phoenix-class colony ship can become an extremely effective troop transport and orbital support ship, carrying about 6000 SRSC Marines, significant amount of vital supplies and equipment, and, if equipped with a Magnetic Accelerator Cannon during conversion, is able to attack ground targets from orbit in support of ground operations. It can also use Pelican and Albatross dropships and Pods to deploy ground forces and establish bases of operation. It is even able to participate in atmosphere to a degree. However, despite the conversion of the Phoenix-class from a colony transport ship to a warship, it is still underpowered as far as most warships go.The Magnetic Accelerator Cannon can fire multiple times consecutively, but each round is less powerful than the cannons used by other SRSC warships.

The largest warship built by humanity to date, the Titan-class Dreadnought is nothing short of an apocalyptic war machine, designed to sunder whole enemy fleets in a single exchange. Generally regarded as better equipped, more popular with crews, and more reliable, these ships would go on to become one of the most important vessels of the SRSC.