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GOV.UC // Alteran Maritime Technologies 'Vigilant Veil' System

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Technology Profile

Alteran Maritime Technologies 'Vigilant Veil'

Ministry of

- Overview
- Design and Development
- Variants
- Technical Specifications
- Operators
- Images


The Vigilant Veil is a comprehensive defense system developed by Great Alteraís Alteran Maritime Technologies, designed to protect naval vessels and strategic points within the Western Isles. This multi-layered system comprises three distinct components: Excalibur, Durandal, and Tyrfang, each addressing different aspects of maritime and aerial defense. Named after mythical and legendary weapons from Alteran folklore, their names symbolise their power, majesty and mystic - due to their high-tech nature.

Excalibur is a laser-based defense system, that serves as the primary defense against high-speed aerial threats, including missiles and drones. Utilizing concentrated beams of light, Excalibur can neutralize targets with pinpoint accuracy. Its rapid deployment capability and infinite ammunition, powered by the shipís reactors, make it an essential component of the Vigilant Veil.

Durandal is a missile-based defense system that employs Trident missiles; a missile that deploys three submunition missiles to maximize hit-change and destructive nature. It is designed to intercept a variety of threats ranging from incoming aircraft to fast-approaching boats and cruise missiles. Durandalís versatility lies in its modular warheads, which can be customized to counter specific threats, and its ability to launch a coordinated attack from multiple points, creating a formidable defense network.

Tyrfang, the final and newest element of the Vigilant Veil, is a microwave-based system that disrupts the guidance systems of incoming guided missiles and drones. By emitting powerful electromagnetic pulses, Tyrfang can effectively disable enemy electronics without revealing its position, thanks to its silent operation. This system is not only deployable on naval vessels but also adaptable for ground installations, offering a scalable solution to Alteraís defense needs in an age of increased drone utilisation.

The Vigilant Veil system is primarily deployed on Alteran ships to safeguard against various threats encountered at sea. However, its modular design allows for adaptation to mobile ground units and fixed defense points, providing comprehensive coverage. The systemís integration of laser, missile, and microwave technologies showcases Alteran Maritime Technologiesí innovative approach to defense, ensuring that Altera remains protected in the volatile geopolitical landscape of The Western Isles.

Design and Development


The Excalibur systemís inception within Great Alteraís Alteran Maritime Technologies was driven by the need for a robust, laser-based defense mechanism for naval vessels. Drawing parallels from long-standing developments in laser technologies, the concept was to create a system that could offer precise, rapid-response defense against a variety of threats. The initial design phase focused on developing a laser capable of delivering high-energy pulses with pinpoint accuracy, ensuring the destruction of incoming projectiles before they could pose a threat to Alteran assets.

The research and development phase involved extensive testing of laser technologies and the integration of advanced targeting algorithms, using current and in-development detection systems. The goal was to create a system that could autonomously detect, track, and neutralize threats in real-time. This phase saw significant breakthroughs in adaptive optics and beam control, allowing Excalibur to maintain focus on fast-moving targets across different environmental conditions.

Following successful lab tests, the Excalibur system entered the prototyping stage. Scale models were constructed to simulate naval scenarios, and rigorous field trials were conducted. These trials tested the systemís resilience against simulated missile attacks, drone swarms, and other potential threats. Feedback from these trials was crucial in refining the systemís capabilities and ensuring its reliability in combat situations.

With successful trials underway, the Excalibur system was greenlit for deployment on Alteran ships from 2025 - with plans for ongoing deployment trials to continuously edit and improve the system. The first vessel to be outfitted with Excalibur will be a Type-30 Admiration class frigate, where it is hoped it will demonstrate its effectiveness in live exerciss and lead to further iterations of the system. These planned improvements include enhanced power efficiency, reduced cooldown times, and the integration of AI elements to further improve threat assessment and engagement strategies.


The Altera Durandal systemís journey began in the early 1980s when Alteran Maritime Technologies recognized the need for an advanced missile-based defense system. The design phase aimed to create a versatile missile capable of defending against a wide array of threats, including incoming missiles, boats, and cruise missiles. The system was named after the legendary sword Durandal, symbolizing its strength and reliability.

Extensive research into propulsion, guidance systems, and warhead technology marked the early stages of development. Prototypes were crafted, combining the agility of surface-to-air missiles with the destructive power of anti-ship missiles. The Durandal system was designed to be highly modular, allowing for quick adaptation to various threat profiles. Whilst AMT original began work on their own missile, deployment of the tri-munition Trident system was quickly seen as a superior system. Work quickly began to integrate the Trident missile system into the current Durandal development.

Throughout the late 1990s and early 2000s, the Durandal system underwent rigorous testing in controlled environments and simulated combat scenarios. These tests helped refine the missileís accuracy, speed, and payload delivery. Feedback from these trials was instrumental in enhancing the systemís targeting algorithms and engagement strategies.

By the mid-2000s, the Durandal system was ready for deployment. It was integrated into Alteraís naval fleet in the early 2000s, providing a robust layer of defense against potential attacks. The systemís effectiveness was proven in various naval exercises, leading to its adoption in mobile ground units and fixed defense points, further solidifying Alteraís defensive capabilities.


In the late 2000s, as drones began development and deployment across the Western Isles, Alteran Maritime Technologies recognized the need for an innovative defense system to counter the threat of small suicide and reconnaissance drones. Inspired by ancient legends, they embarked on the development of Tyrfangóa name evoking both vigilance and ferocity. Aware of the potential of high-energy frequencies that could disrupt electronics and transmission signals, Tyrfang was envisioned as a microwave-based shield capable of neutralizing guided threats without revealing its presence.

Alteran scientists and engineers collaborated to lay the theoretical groundwork. They studied electromagnetic pulse (EMP) phenomena, microwave propagation, and the vulnerabilities of modern missile guidance systems, finding it to be effective in neutralising control and transmission signals. The concept emerged: Tyrfang would emit focused microwave pulses, disrupting enemy electronics and rendering guided missiles and drones inert.

Working with Alteran Aerospace, an EMP microwave emitting system was developed; capable of emitting both pulses and beams of EMP inducing radiation. Rigorous testing followed: simulated missile guidance circuits, drone control systems, and even unsuspecting electronic gadgets. Tyrfangís silent operation was a key advantage, as it was quick to respond to 'pop-up' threats, as well as being considerable more effective than using small arms and current auton-cannon based systems.

By the early 2020s, Tyrfang was ready for integration with field-testing units. Both the Alteran Navy and Army became the first recipients, as the systemís scalability allowed for adaptation beyond ships. Ground-based installations, coastal defense points, and critical infrastructure sites could receive Tyrfang modules, as well as plans for a mobile self-contained trailer and container based unit.


Excalibur (2027 - )
Short-range Defence System
50KW Laser Defence System

Durandal (2005 - )
Short-range Defence System
Trident Missile Defence System

Tyrfang (2025 - )
Short-range Defence System
Radio Frequency Directed Energy Weapon

Technical Specifications

-.- m (Excalibur)
-.- m (Durandal)
-.- m (Tyrfang)

-.- m (Excalibur)
-.- m (Durandal)
-.- m (Tyrfang)

-.- m (Excalibur)
-.- m (Durandal)
-.- m (Tyrfang)

Weight (per eight-cell module)
6,500 kg (Excalibur)
3,750 kg (Durandal)
4,200 kg (Tyrfang)

Effective Range (per eight-cell module)
5.0 km (Excalibur)
9.0 km (Durandal)
2.0 km (Tyrfang)

Cost (per eight-cell module)
₠15.0 M UCE ($18.0 M IAD) (Excalibur)
₠10.0 M UCE ($12.0 M IAD) (Durandal)
₠12.0 M UCE ($16.8 M IAD) (Tyrfang)


Great Altera
United Commonwealths Army
United Commonwealths Navy


Vigilant Veil 'Excalibur'

Vigilant Veil 'Durandal'

Vigilant Veil 'Tyrfang'

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