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5 mars 2015 4 05 /03 /mars /2015 07:20
AGM-86 ALCM - photo USAF

AGM-86 ALCM - photo USAF


3 Mar 2015 By: Stephen Trimble - FG


Washington DC - The US Air Force will consider a supersonic engine among three propulsion options now under review for the long range standoff (LRSO) missile, according to an acquisition notice released on 26 February.

The LRSO is expected to replace the Boeing AGM-86 air launched cruise missile, a subsonic weapon powered by a Williams F107 turbofan engine.

The USAF is considering two subsonic engine options – a derivative of an existing engine with 5% greater fuel efficiency and an advanced engine offering up to 20% better fuel efficiency, according to the request for information released by the LRSO branch of the Air Force Life Cycle Management Center.

A third option under review is a supersonic engine that would be sized comparably to “existing small core expendable engines”, the acquisition document says.


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29 janvier 2015 4 29 /01 /janvier /2015 08:20
L’USAF étudie un nouveau missile pour son prochain bombardier (LRS-B)

L’équipe du laboratoire de Sandia assemble un modèle 3D du futur LRSO en mars 2014 (source Sandia National Laboratories)


29 janvier 2015 Info-Aviation


Le général en charge des forces nucléaires Stephen Wilson a confié aux journalistes que l’US Air Force travaille sur un missile de croisière LRSO (Long-Range Standoff) pour armer la future flotte de bombardiers américains LRS-B (Long-Range Strike Bomber).


« Nous aurons besoin d’un missile qui peut pénétrer les défenses aériennes les plus sophistiquées. », a déclaré le général Stephen Wilson. Il a ajouté qu’une variante conventionnelle du LRSO serait construite après qu’une version à tête nucléaire soit d’abord développée. Le général a expliqué que l’US Air Force a terminé son analyse des solutions de remplacement (AoA) et attend déasormais la décision du Pentagone pour commencer l’acquisition. L’US Air Force a étudié « une variété d’options – avec des capacités différentes, et des vitesses différentes », a t-il ajouté. « Nous avons limité notre analyse aux technologies que nous maîtrisons actuellement. Mais je ne peux pas entrer dans les détails. »


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16 octobre 2013 3 16 /10 /octobre /2013 06:20
AGM-86B Air Launched Cruise Missile

AGM-86B Air Launched Cruise Missile

Oct. 15, 2013 by Jon Hemmerdinger – FG


Washington DC - The US Air Force (USAF) is moving forward with the development of a nuclear-capable long-range standoff (LRSO) missiles, announcing it is conducting market research to identity companies that could help build the weapons.


The government has invited interested industry members to attend an “industry day” on 31 October to provide feedback on the USAF’s LRSO acquisition strategy, according to a request for sources posted on FedBizOpps.gov.


With feedback from industry, the USAF is expected to craft an acquisition strategy, which it will then present to the Pentagon for approval.


LRSO weapons are classified “special access” by the government, meaning industry members must have top secret security clearance to be involved in the project.


The weapons, which will replace the USAF’s current air-launched cruise missiles (ALCM), will be able to penetrate and survive integrated air defence systems and “prosecute strategic targets in support of the Air Force's global attack capability and strategic deterrence core function”, according to the Pentagon’s budget justification documents.


The Boeing AGM-86 family of ALCMs have been operational since 1986. They are winged missiles powered by a Williams F107 turbofan engine. They are typically launched from Boeing B-52 aircraft and use GPS receivers to strike targets, according to the USAF’s website


After being launched, wings, tail surfaces and the engine inlet deploy from the weapon.


ALCMs can fly complex routes over terrain using a “terrain contour-matching guidance system,” says the USAF.


USAF budget justification documents show that more than $600 million was requested over the next five years to begin development of the LRSO missile.


The USAF documents describe the LRSO as being capable of penetrating into airspace protected by an integrated air defence system from a "significant" stand off range.

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