Suivre ce blog
Editer l'article Administration Créer mon blog
6 avril 2012 5 06 /04 /avril /2012 17:00


Sikorsky UH-60 photo USAF


April 6, 2012 by Dave Majumdar - FG


Nashville - The US Army is working on increasing the safety of its rotary-wing aircraft in degraded visual environments.


An army study recently concluded "the greatest threat to our aircraft was what we call degraded visual environments," says Col Anthony Potts, the army's aviation systems project manager.


A helicopter on its terminal approach might kick-up a cloud of dust and debris, known as a "brown out", which causes pilots to lose their visual reference to the Earth's surface, and could lead to a crash if the helicopter snags an object.


Potts says the army is working on a number of technological solutions to the problem--the most promising being a 94GHz millimetre wave radar system.


"There is a lot of debate about whether that is the right solution or not," Potts says. "I can tell you there are other solutions out there."


Those solutions include laser-based Light Detection and Ranging (LIDAR), long-wave infrared cameras, and synthetic vision using precise geographic data-bases, among others.


"What we found was that the millimetre wave radar actually had the best capability to penetrate those heavy dust obscurants," Potts says.


The radar essentially creates synthetic imagery in front of the aircraft in real-time which alerts pilots to the presence of obstacles.


But having the right cockpit symbology also is important, Potts says. Newer versions of the Boeing AH-64D and CH-47F, for example, already have such cuing systems, and therefore do not need this type of augmentation as much as other aircraft.


The Sikorsky UH-60L, an older model Blackhawk, has the greatest need for such a pilot aid.


Part of the solution might also be adding a detailed database of the terrain to augment the system, Potts says.


Rockwell Collins was demonstrating a version of such a system on a UH-60 simulator at an Army Aviation Association of America (AAAA) forum in Nashville,Tennessee. The company says its technology is already being used on business jets and it will soon to integrating its system with radar.


Potts was seen visiting the Rockwell Collins simulator at AAAA.


Over the next five years, the army plans to spend $226 million on a solution to the degraded visual environment problem. In the next 18 to 24 months the service will write up an operational needs statement and buy five prototype 94GHz radar systems from Science and Engineering Services and Sierra Nevada Corp. If the system proves to be successful, the service has the option of buying more for limited user trials.


At the same time, the army is working on preparing a formal developmental programme which it hopes to start in the fourth quarter of 2012, Potts says.


The operational needs statement and prototypes will help inform the developmental program as will input from the army's elite special operations forces and the Defense Advanced Projects Research Agency (DARPA).


"We found a great partnership with those guys," Potts say.


The idea is to build a "backbone" architecture that can accommodate almost any sensor or a combination of sensors. "So when we get to a programme, we're not tiedto a specific material solution," Potts says.

Partager cet article

Published by RP Defense - dans North America
commenter cet article



  • : RP Defense
  • RP Defense
  • : Web review defence industry - Revue du web industrie de défense - company information - news in France, Europe and elsewhere ...
  • Contact


Articles Récents

  • Armor: Where The Hummer Still Gets Respect
    photo US DoD July 28, 2015: by Strategy Page The U.S. Army ordered its last HMMWV (humvee or "hummer") vehicles in 2011. But foreign customers are still avid customers. In June 2014 Afghanistan, Iraq, Kenya, Lebanon, Ukraine and Tunisia together ordered...
  • Exposition sur l'ordre de la Libération dans la cour d'honneur des Invalides, à Paris
    27/07/2015 Sources : SGA/DMPA Cette exposition est proposée du 27 juillet au 4 octobre 2015 par le musée de l'Armée en partenariat avec le musée de l'ordre de la Libération et le ministère de la défense (SGA/DMPA). Lire l’article
  • Colloque, Premières attaques chimiques, 1915 - 1918
    24/07/2015 par DCSSA Mercredi 23 septembre 2015 à l'Ecole du Val-de-Grâce Colloque organisé par l’Institut de Recherche Biomédicale des Armées sous la haute autorité du Directeur central du Service de santé des armées, en association avec l’Institut des...
  • Surface Forces: Poland Forced To Downgrade
    ORP SLAZAK - Gdynia Navy Shipyard photo Jan Szurgot July 28, 2015: by Adam Szczepanik - Strategy Page Good news and bad news for the Polish Navy. On July 2nd the first and most likely only ship of the Slazak class offshore patrol vessels (OPV) was launched...
  • Des mortiers tombent du ciel
    Photos : Ritchie Sedeyn – 10/07/2015 Johan Lievens – Le 8 juillet, des canonniers du Bataillon d’Artillerie de Brasschaat ont effectué le saut de leur vie. Ils ont été parachutés d’un C-130 au-dessus du terrain d’Elsenborn avec deux mortiers...
  • Déploiement d'instructeurs belges à Kinshasa
    photo 20/07/2015 Sarah Delafortrie, Christophe Springael – Sur proposition du ministre de la Défense Steven Vandeput, le Conseil des ministres a marqué son accord sur le déploiement de trois instructeurs belges durant une période de trois...
  • Prolongation de l’engagement du détachement belge déployé à Bagdad
    photo 20/07/2015 Sarah Delafortrie, Christophe Springael - Sur proposition du ministre de la Défense Steven Vandeput, le Conseil des ministres a marqué son accord sur la prolongation de l'engagement du détachement d'entraînement de quelque...
  • Bilan de l'opération Desert Falcon
    Photo 20/07/2015 Johan Lievens – Durant les neuf mois de l’opération Desert Falcon (ODF), les six F-16 belges ont effectué 163 attaques lors des 796 vols au-dessus de l’Irak. La contribution belge s’élevait à 5,5% de la coalition internationale...
  • Colloque " Soldat augmenté " - Juin 2015 (video)
    source Centre de Recherche des écoles de Saint-Cyr Coëtquidan Le pôle Action globale et forces terrestres du Centre de Recherche des écoles de Saint-Cyr Coëtquidan a organisé, le lundi 8 juin 2015 à l’École Militaire à Paris, un colloque introductif intitulé...
  • Entreprendre et réussir : Histoire du 19e régiment du génie
    photo Armée de Terre 26/07/2015 Armée de Terre Le 19e régiment du génie ouvre ses archives avec son prochain livre «Entreprendre et réussir». L’objectif ? Nous faire découvrir la richesse de son histoire, de 1876 à nos jours. Après avoir participé à la...