In 2854, the Flight IIA models began to deploy as the first wave of Flight II were found to have a blind spot. In 2817, the Flight II models were released, in which replaced a radar emplacement with an additional turret and redesigned the internal deck layout in response to readiness reports from gun crews operating in the field. As a result of the incident, the Navy requested Aegis to implement major sensor changes in the Flight II models. In 2782, UEES Tiburo, a Flight I Hammerhead was involved in a collision while undergoing refuel/rearm operations.

Luckily for Aegis, the military had not negotiated an exclusive license on the Hammerhead design, which allowed them to adapt the spacecraft for civilian use in a variety of roles without governmental oversight in an attempt to remain solvent. As the new government sought to distance themselves from Aegis' warships in an attempt to rebrand their military and sought contracts from other manufacturers like RSI and the new Anvil Aerospace. Īfter the fall of the Messers in 2792, the Hammerhead was considered by many to have been the 'official' ships of the Messers, Aegis not only found themselves publicly disgraced but many called for them to be charged for their role in the fascist regimes war crimes. The Navy was pleased with the Hammerhead's proven combat capability and its new role in fleet operations, UEE doubled their initial hull order with Aegis and six months later signed an additional expansion that requested permanent production.

After six months of space trials proved uneventful, an additional five Flight I hulls were approved and allocated to the Fifth Fleet to serve as a proof-of-concept for newly developed carrier warfare doctrine. In, the first production and Flight I model of Hammerhead, UEES Hammerhead was transferred to the UEE Navy. Aegis had built a fast warship nimble enough to properly support a battle group while remaining inexpensive enough to be constructed in large numbers. The result of the prototype program was a highly successful new spacecraft design. Structural development lasted eighteen months, followed by three years of construction on the first of six test-bed articles. Six initial prototypes were built by Aegis, with two of these prototypes being delivered to the UEE Navy for evaluation. Aegis Dynamics was tasked with developing this new warship, then identified as PROJECT MONITOR and began ground-up development that November. In March 2765, High Command issued a request for proposal (RFP) seeking a dedicated anti-fighter platform that could serve as both a key element of the standard fleet screen and as a cost-effective patrol ship to replace the aging Guine-class.

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