DARPA Launches Ekranoplan Liberty Lifter Program for Strategic Lift

Among the most important American successes of the Second World War in the industrial field, it is common to refer to combat aircraft such as the P-51 Mustang or the F-6F Hellcat, to the Sherman tank or to the aircraft carriers of the Wasp class. However, the material which undoubtedly played the most decisive role in defeating Nazi Germany and Imperial Japan was the Liberty Ship, a model of cargo ship 135 meters long and 10.000 tons displacement, produced in 2,710 copies, and which transported the entire American and allied war effort to Africa, Europe and…

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The Pentagon relies more than ever on DARPA for its hypersonic programs

If, in the 90s, 2000s and 2010s, the United States had research programs in the hypersonic field, such as X-51 Waverider, the subject was considered of less importance by the Pentagon, and only benefited from limited credits and especially no application program to follow. But when in March 2018, Vladimir Putin announced the entry into service of the airborne hypersonic missile Kinzhal, yet far from representing a remarkable scientific breakthrough in the field, things changed radically in Washington, and the development of hypersonic systems very quickly became a strategic issues for the American armed forces. The entry into service of the Chinese DF-17, the upcoming arrival…

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The United States announces the end of the tests of its anti-satellite systems

On November 15, 2021, Russia destroying the Kosmos-1408 satellite using an anti-satellite missile, causing nearly 1500 pieces of debris to be released into a busy orbit, including by the International Space Station. Since the 60s, no less than a dozen successful tests have been carried out by the United States, the Soviet Union / Russia, China and India in this field, creating more than 6500 pieces of space debris of which 4500 are still in orbit, threatening both civil and military satellite constellations. For Kamala Harris, the American vice-president, it was now necessary to put an end to this escalation, including,…

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The Pentagon's Pele Transportable Nuclear Reactor program takes off

Every day, the Pentagon consumes 50 million liters of fuel for its armed forces, and this figure could more than double in the event of a major engagement. In addition to the exorbitant costs that such consumption represents even for an oil-producing country like the United States, and the increasingly problematic impact for the some 100 million kg of CO2 released into the atmosphere every day, this dependence also constitutes a permanent logistical headache for the American forces deployed outside the territory, even though the War in Ukraine has demonstrated the immense vulnerability of the logistical chains in the face of modern weapons systems and infantry...

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DARPA has successfully tested a second model of hypersonic cruise missile

When in March 2018, Vladimir Putin announced that the Kinzhal hypersonic airborne ballistic missile would soon enter service, all Western armed forces understood that this new technology would quickly become an operational imperative, and that in this area, they had left it to the Russia, but also to China, which the following year presented its own DF17 hypersonic missile, a far too large advance. If the Europeans, as usual, reacted with the speed of a sea cucumber, the Japanese, Australians, South Koreans and especially the United States reacted with speed and determination, quickly implementing programs aimed at acquiring as many quickly of this type of armament. Mon…

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DARPA succeeds in-flight recovery of X-61A Gremlins drone

Air-dropped drones offer many advantages from an operational point of view, in particular that of being able to be deployed at long distances thanks to a carrier aircraft, and of having to use their own fuel only once dropped, so as not to having to consume it only once above or near the objective. The autonomy in flight of the drones is thus considerably increased, reinforcing their operational efficiency. But this approach suffers from a significant weak point, since once released, the chances of being able to recover the drone once its mission is over are all the more slim as it intervenes far from the allied bases.…

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US Air Force invests in production of aviation fuel from atmospheric CO2

If the new Joint All-Domain Command and Control doctrine put forward by the American armed forces provides numerous responses to the multiplication of threats, it also induces, as we have discussed on numerous occasions, a notable complexification of the supply chain for forces deployed in smaller and more dispersed units. In this area, two particularly important problems have emerged, particularly during the Afghanistan campaign which, in a way, foreshadowed the logistical constraints which the American forces will be confronted with, namely drinking water and fuel, representing between them more 50% of the mass transported daily for…

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DARPA's HAWC hypersonic cruise missile successfully completed its maiden flight

In the field of hypersonic weapons, 3 main families of propulsion face each other: hypersonic gliders which are operated by ballistic missiles before being dropped at very high altitude and high speed, and which manage to maintain their hypersonic speed taking advantage of gravity; ballistic or semi-ballistic missiles using rocket engine type propulsion which simultaneously carry fuel and oxidizer to produce thrust; and so-called aerobic systems employing a new type of engine, the Scramjet, which, like a jet engine, uses atmospheric oxygen as an oxidizer to produce thrust. Of course, this last…

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BAe will develop Active Aerodynamic Flow Control for DARPA

From the Wright Flyer, which first flew an airplane at Kitty Hawk in 1903, to the very recent F-35 and Su-57, all aircraft today are directed and controlled using control surfaces. aerodynamics, which alter the flow and direction of airflow to create or degrade lift and the resulting forces. While technology and the understanding of aerodynamics have evolved considerably over the past 118 years, the use of these control surfaces continues to complicate the design and maintenance of aircraft, and offer few possibilities to adapt to new needs...

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