This article is a part of the K21 Squared timeline.

Lockheed Martin F-125 Suppressor


Stealth Air Superiority Fighter


Lockheed Martin

First Flight

24 April 2101




Active service

Primary users

North American Strike Force
North African Aeronautical Defense Division
Australian Air Force (Planned)

Number built

1019 (still in production)



Developed From

F-110 Midnight
X-122 Freedom

The F-125 Suppressor is a line of twin-engined forward swept wing VTOL fighter aircraft designed and produced by Lockheed Martin for use as a stealth air-superiority fighter. They were designed to be a able to dominate the skies and suppress enemy aircraft movements. They have been built with survivability in mind and is capable of operating under extreme conditions.


It's oft joked that the F-125 was in production for so long that all of its flaws were ironed out, leaving it the pinnacle of fighter aircraft in the 22nd Century. Impartial observers have noted that it is over engineered in almost every aspect and that the astronomical costs of the fighter could be significantly reduced if the aircraft was stripped down considerably. After 10 years of development, the first X-122 finally took flight in April 2101 in the aftermath of the World Justice Uprising. The very same war they were being designed to operate in. Due to the flaws inherent in the X-122, the project was almost scrapped until it was decided that they had already poured too much funding into the design of the aircraft that decommissioning the project was just as economically nonviable.

After fifteen long years of rigorous testing, a variant suitable for mass production was finally completed in the form of the F-125 Suppressor. It was designed to achieve complete aerial dominance while providing the possibility of deploying both tactical and strategic nuclear weapons. Due to its established role as solely utilising nuclear weapons, aspects such as speed and robustness were major focuses for development. One of the main factors that drew out the time between first test flight and introduction was the lengths taken to EMP harden the entire aircraft so that it could remain airworthy after deploying a nuclear payload.

The second aspect that caused the designers a major headache was designing a jet aircraft that could feasibly manage hairpin turns, rapid ascents and enhanced supersonic speeds so that it could realistically escape a 100 megaton blast (as the North American Alliance Joint Military Forces did not want escort missions of nuclear bombers to be one way, in lieu of the gargantuan cost of these state-of-the-art aircraft). Eventually a highly maneuverable aircraft was developed that retained its VTOL capabilities and allowed for rapid deployment. It has been clocked at operating at close on 3500 km/h under a controlled testing environment and is expected to operate at speeds of 3000 km/h when deployed in the field. The range is highly variable based on fuel consumption of its hydrogen cells.

In order to increase the effectiveness of their stealth capabilites, each F-125 Suppressor is outfitted with a metascreen microwave invisibility cloak system that renders them nearly impossible to detect with the naked eye. Combined with the RADAR resistant materials that were used in the construction process of the main body of the aircraft, the F-125 is practically undetectable by enemy forces. This lead to a few issues arising during the development phase when a F-110 Midnight collided with a F-125 Suppressor during a routine testing mission.


X-122 Freedom

Originally designed to fight against the PER and neutralize their air forces, it never saw active duty and was doomed to remain a prototype.

F-125 Suppressor

The typical armaments of a F-125 Suppressor is eight state-of-the-art AIM-30 Buzzard air-to-air missiles that each carry a 10 kiloton nuclear warhead and a single air launched cruise missile with a 100 kiloton payload. They have also had an advanced experimental laser array fitted in place of anti-aircraft cannons.

F-125A Suppressor Superior

A planned version of the aircraft ordered by Sector XII for use by the Imperial Australian Air Force. It has yet to see proper production due to payment issues. The entire plans have not been revealed as of yet, however it has been outlined as being an air superiority attack fighter armed with conventional weapons.

F-125B Suppressor Annihilator

Refitted version of the F-125 to operate as a stealth bomber. Outfitted to carry a 50 megaton nuclear bomb. All other weapons systems have been removed and instead the range of the vehicle has been dramatically lengthened due to the addition of four wing mounted external drop tanks. Conservative estimates place its maximum range at 5000 km when operating at peak efficiency.

F-125T Suppressor Trainer

A twin-seat variant of the F-125 designed for teaching purposes. It is capable of being armed with eight AIM-30 Buzzard air-to-air missiles outfitted with dummy warheads for training purposes. The Trainer is not outfitted with a laser system and instead still uses the old conventional cannon that the X-122 was designed to utilise.


X-138 Lightning III

A proposed next generation fighter that would incorporate a compact fusion reactor as a fuel source.

Military Operators

North American Strike Force

The NASF are known to currently operate 750 of these aircraft. Of these, at least one third of them are known to be in active service around the Middle East, operating from Israeli airbases.

North African Aeronautical Defence Division

Due to the surplus funds that Calypso Industries had in the aftermath of the World Justice Uprising, they decided to purchase 250 F-125 Suppressors while they were still in development. Part of the agreement gave them five X-122s straight away as an incentive. It has been hypothesised that the F-125 may have never been completed without the generous funding of the Upper African Zone.

Australian Air Force

Plans are still in development for the Imperial Australian Air Force to purchase these aircraft as a means of offsetting the stealth related flaws that the AAC 52 Drongo suffers from. However, a combination of fears of backdoor systems being installed by the American designers and various monetary issues have lead to them currently only having three F-125s in their possession, and none of the F-125As they desire.

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