Hélicoptères de combats

Rappel du premier message :

aah ok je comprend sinon je crois que les turques en opté pour le Mil-mi28 russe aussi non ??

Super-Cobra se retire de la competition indienne de 22 helicos pour 600M$,problemes d´integrations des sensors..

Citation :

DATE:06/08/09
SOURCE:Flight International
Bell withdraws AH-1Z from India's attack helicopter contest
By Stephen Trimble

Bell Helicopter confirms that it has withdrawn from an opportunity to offer the AH-1Z Super Cobra for a $600 million tender for attack helicopters in India.

"Although Bell did consider offering its AH-1Z, we will be declining the opportunity to participate in the [request for proposal] process because the AH-1Z has not yet completed its operational evaluation process with the US Navy," the company says.

The AH-1Z entered operational evaluation testing last year, but it was halted less than halfway through due to technical problems with its integrated helmet targeting systems and other sensors. The Super Cobra is still due to enter operation service for the US Marine Corps in fiscal year 2011.

Bell's decision to drop out of the Indian competition leaves at least four likely contenders, the AgustaWestland AW149, Boeing AH-64D Apache Longbow, Eurocopter Tiger and Mil Mi-28.

The Indian air force plans to sign a contract for 22 helicopters in 2011 and complete deliveries by 2014.

tenez ça! je savais pas que Agusta avait son propre APACHE

APACHE AH-MK1

The Apache AH-Mk.1 has been developed from the US AH-64D Apache, and built by AgustaWestland under licence from Boeing for the British Army. Battle proven and effective on current operations the Apache AH Mk.1 is equipped with two RTM322 engines giving unique ‘hot and high’ capability. The ability to classify and prioritise ground and air targets, a 30mm accurate chin mounted machine gun and ability to carry the latest in weapon technology make Apache suited to precision attack, air escort, reconnaissance, anti-armour and deep operations. Self protection is assured by an integrated Defensive Aids Suite (DAS).


http://www.agustawestland.com/sites/default/files/brochures_new_product/ApachePocketbook.pdf

Alloudi a écrit:

Citation :

Caractéristiques de l'appareil

Le coût unitaire d'un tel hélicoptère est de 32 millions d'euros (deux fois plus qu'un NH90). En 2007, l'hélicoptère Tigre commence seulement son expérimentation opérationnelle dans l'aviation légère de l'armée de terre française. À ce titre, ses capacités sont moins connues du grand public que celles d'hélicoptères concurrents (AH-64 Apache, Mi-28…) mais l’hélicoptère franco-allemand Tigre est un engin aux performances proches : pesant 6 tonnes, équipé d'un rotor quadripale de 13 mètres de diamètre et motorisé par deux turbines MTR 390 de 1285 ch de puissance chacune au décollage. Grâce à une cellule entièrement en matériaux composites, l'ensemble de la structure est allégé et s'en trouve plus maniable, avec une suppression des criques métalliques et un renforcement de la résistance en cas de crash au sol.
L'excellente manœuvrabilité (qui lui permet de faire un looping), conséquence de sa cellule en composite, lui permet notamment de se déplacer agilement à travers les différents théâtres d'opération, notamment les montagnes. Il est le seul hélicoptère de combat navalisé, hormis la version britannique de l'Apache AH-64D qui fut adaptée à grands frais.

Le Tigre atteint la vitesse de 280 km/h pour une autonomie exceptionnelle de 800 km, sans réservoirs de convoyage supplémentaires.
De par sa conception récente, il ne nécessite qu'une faible maintenance pouvant être effectuée directement sur le théâtre des opérations avec une équipe de 4 ou 5 personnes, quatre ou cinq fois moins importante que pour les hélicoptères concurrents. Comme sur la plupart des hélicoptères de combat, pilote et tireur sont placés l'un derrière l'autre, ce qui permet de réduire la largeur de l'appareil et donc sa vulnérabilité aux tirs frontaux ennemis. Le tireur est placé à l'arrière de l'appareil. Aussi, pour améliorer sa visibilité, son siège est légèrement surélevé par rapport à celui du pilote.

Les versions appui-protection (HAP, HAD, HAR) sont équipées d'un viseur placé sur le toit du poste de pilotage. La version allemande UHT (Unterstützungshubschrauber Tiger) plus spécialisée dans le rôle antichar, le viseur est monté au-dessus du rotor principal. Sur cette version, le canon est installé dans une nacelle accrochée sous une ailette.

Une avionique ultra-moderne

Le Tigre dispose, de jour comme de nuit, d'une précision de destruction de cibles inégalée. Ses systèmes de visée calculent instantanément la trajectoire de la cible. À titre d'exemple, lorsque sa tourelle-canon tire une rafale de 10 obus de 30 mm, de jour ou de nuit, une cible mobile ou immobile, même distante de 1 km, n'a pratiquement aucune chance de survie. Ce type de conduite de tir n'existe sur aucun des hélicoptères en service jusqu'à présent (11/2007). Le Tigre doit largement sa légèreté à sa structure ultramoderne, constituée à 80 % de matériaux composites, essentiellement du Kevlar et des fibres de carbone. Sans être furtif, il renvoie une image radar et infrarouge minimale, grâce au design étudié des surfaces, aux peintures absorbantes utilisées et au système réducteur de signature thermique appliqué à l'échappement des turbines. Celles-ci sont par ailleurs séparées par une plaque blindée, afin d'éviter la perte des deux en cas d'impact direct sur l'une d'entre elles. L'avionique, tout aussi moderne, comprend les éléments suivants :

* Une paire de bus de transfert de données redondants ;
* Quatre écrans couleur multifonctions, deux pour le pilote et deux pour le tireur ;
* Des systèmes de navigation autonomes ;
* Un système de pilote automatique ;
* Un générateur de carte numériques;
* Des détecteurs d'alerte radar et laser.

Utilisateurs

Le Tigre sera utilisé par les pays suivant (nombre d'appareils en commande : ferme + option) :
* Allemagne Allemagne: 80 version UHT
* Australie Australie: 22 version ARH
* France France: 80 dont 40 HAP et 40 HAD
* Espagne Espagne: 24 version HAD
Le gouvernement Français pourrait considéré à l'annulation de 40 tigres sur les 80 deja commandés (variantes HAP & HAD), afin d'économiser près d'un milliard d'euros dans le budget de la défense. La commande des 40 tigres restant sera en intégralité portée sur la configuration polyvalente HAD. (Source : Helicopter International Avil 2007.) Il est également possible d'un éventuel commande à l'Algérie contre la lutte anti-terroriste, lors de la visite du Premier ministre Français, François Fillon le 21 et 22 juin 2008.
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Description

Rôle hélicoptère de combat
Équipage 2 (pilote + tireur)
Version UHT : version antichar avec viseur de mât et missiles HOT 2
HAP : version d'appui-protection de 68 roquettes de 68 mm, de 4 missiles Mistral et d'un canon de 30 mm
HAD : version appui-destruction équipée de l'armement du HAP et de missiles antichars
ARH : version reconnaissance développée pour l'Australie équipée d'un canon de 30 mm, de roquettes de 70 mm et de missiles Hellfire

Dimensions

Eurocopter Tigre type HAP
Longueur 15,80 m (hors tout, rotors tournant)
Longueur du fuselage 14,08 m
Hauteur 3,83 m (HAP/HAD);
5,20 m , viseur de mât compris (UHT)
Diamètre du rotor 13,00 m
Masses
À vide 3 060 kg
Maxi. carb. (réservoirs int.) 1 080 kg
Maxi. décollable 6 100 kg
Moteur
Motorisation 2 moteurs à turbine Rolls-Royce / Turboméca / MTU (MTU Aero Engines) MTR390
Puissance 873 kW

Performances

Vitesse maxi. 280 km/h
Rayon d'action pour combat (réservoirs internes) 800 km
Rayon de déplacement (avec réservoirs externes) 1 300 km
Plafond opérationnel 4 000 m
Taux de montée maxi. 10,7 m/s

Armement

Armement 1 canon GIAT 30 de 30 mm en tourelle (HAP/ARH/HAD)
1 x 12,7 mm ou 20 mm en nacelle (UHT)
Missiles 2 paniers de 22 roquettes de 68 mm
4 missiles air-air Mistral (HAP/HAD)
8 missiles anti-char Trigat-LR et/ou HOT et/ou AGM-114 Hellfire
Système de visée OSIRIS (Sagem)
LINK
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http://fr.wikipedia.org/wiki/Eurocopter_EC-665_Tigre
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Et pour finir : https://www.youtube.com/watch?v=HVEvdgaTPJA&feature=related

Northrop a écrit:

Oui je sais,mais je pensé au version MK-3..(modernisation sud-africaine) ou encore une fois le S-Cobra est meilleur.Et il est meme meilleur que certaines versions de l'apache ou T/A-129 (mangusta)..

je ne crois pas cher ami,le MK3 reste tout de meme un colosse visible et thermique,une belle cible meme pour un tireur de SA7 aveugle,la lourdeur est un inconveniant pour un helico de combat,la silhouette du cobra est fine et les moteurs ont un reducteur de signature IR en reduisant les gaz,c´etait dans l´upgrade des W/Z

Updates On The Air Force AH-1Z And UH-1Y Aircraft

Citation :

This is the expert opinion of Lt. Colonel: "A major survivability upgrade to the AH-1Z/UH-1Y aircraft, currently in the latter stages of developmental flight test here, made its first flights this week at the Bell Helicopter XworX facility in Texas. The upgrade, consisting of an integrated engine exhaust management system that then turns the hot exhaust gases out and away from the aircraft's tail boom, quickly followed Monday's ground run accomplishment by expanding the flight envelope from hover to 120 knots Tuesday."

"The flight consisted of a six-minute hover," explained Marine Lt. Colonel David J. Anderson, the H-1 program's assistant program manager for Systems Engineering, "followed by an over-night teardown and inspection. Tuesday, after the Bell team put everything back together, we took it up to 120 knots." Bell's Advance Programs unit has been exploring ways to improve survivability of the Cobra for several years, developing a solution by managing the exhaust flow and integrating off-the-shelf components, then turning the exhaust away from the helicopter's tail boom."

"This is the culmination of over a year of design integration effort by a team of dedicated professionals," said Tom Mast, a Bell design engineer on the program. "Not only will it further decrease the helicopter's infrared signature, but engineers expect it will help with decreasing engine exhaust heat on AH-1Z and UH-1Y tail booms and reducing engine compartment temperatures. The upgraded T-700 engines require more advanced engine exhaust management than the older, less powerful ones. Finally, the system permits the engine to perform more efficiently, burning less fuel for the same amount of power."

"The upgrade, which will also be applied to currently fielded AH-1W Super Cobras, many of which are supporting Marine Corps operations in Iraq, Afghanistan and the Horn of Africa, is the first major engineering prototype effort for Bell's XworX to benefit the H-1 program."

"Flight testing of the turned exhaust modification on the AH-1W Super Cobra is scheduled to begin in October with fielding in March 2005. "Performance of the new turned exhaust over the past two days confirms what we hoped we would see," Anderson said. "Bell Advanced Programs and XworX are living up to our expectations they're cutting their teeth on the AH-1Z and so far, we like what we see."

"As originally configured, exhaust gases flowing over the tail boom made for a larger IR signature in both the AH-1W and the upgraded AH-1Z and UH-1Y. Because of greater heat coming out of the up-rated engines in the AH-1Z and UH-1Y, the exhaust heat also started affecting the structure of the tail boom itself. Advanced non-destructive inspection technology enabled NAVAIR engineers to understand the problems caused by the heating before they became safety of flight issues. "We developed this innovative modification to save lives and reduce support costs," said Kendall Goodman, Bell's engineering team leader."

"The XworX engineers, working with their 'navair' counterparts, fabricated and installed the parts for the turned exhaust modification. Complete flight test envelope expansion flights for both the AH-1Z and UH-1Y will continue at NAS Pax River. "We were going to do this all along to gain additional survivability," explained Marine Col. Doug Isleib, H-1 program manager here, "but we found that what works for IR signature reduction also works to lower tail boom temperatures - making turned exhaust the optimal solution to both concerns."

"The H-1 Upgrades Integrated Test Team here currently has achieved approximately 1,800 flight test hours with five aircraft (three AH-1Z and two UH-1Y test aircraft, of which all but one AH-1Z are production representative). The test aircraft have flown 222 knots, maneuvered from -0.4 to +3.5 g's, been well above the 10,000-foot altitude mark and recently completed their second operational assessment by Fleet pilots."

"The report from that assessment is pending. With the turned exhaust-equipped AH-1Z returned to a flight status, XWorX artisans are now turning their attention to performing the same modification on the 84 percent identical UH-1Y. Flight test on that Y-Model Huey will resume once the modification is completed."

Apache AH-64D - Hellfire Missile

Tout commentaire serait futile (Mise en ligne fin sept 2009)

2 possibles projets sud-coreens d´Helico de combat

Je trouve qu'ils ont bcp de projets dans les cartons...ils devraient ce concentré sur un ou deux programmes pour qu'ils arrivent au bout ...

Ka-52 à bord du Mistral

an ah 64d apache


uh 60 black hawk

Citation :

AH-64D Apache Block III Structures Test Aircraft Makes First Flight

Released on Friday, December 04, 2009



Boeing AH-64D Apache Block III Structures Test Aircraft Makes 1st Flight
MESA, Ariz., Dec. 4, 2009 -- The Boeing [NYSE: BA] AH-64D Apache Block III program has completed the first flight of its structures test aircraft. The test, conducted Nov. 23 in Mesa, demonstrated flight characteristics and handling maneuvers. Tests to continue to expand the helicopter's flight envelope are expected to continue for the next several weeks.

Block III technologies being tested include the composite main rotor blade, composite horizontal stabilator, and -701D engines, which include an enhanced digital electronic control unit. The aircraft also features a split-torque face gear transmission that increases power throughput by more than 20 percent within the same physical operating space as the legacy transmission.

"This flight demonstration is another crucial step as the U.S. Army and Boeing work together to meet the objectives of the Apache Block III program," said Col. Shane Openshaw, Army Apache project manager. "The Apache Block III helicopter meets the Army's requirement to sustain the aircraft for its life cycle while providing superior capabilities to Army aviators, battlefield commanders and soldiers."

The program's avionics test aircraft, which made its first flight ahead of schedule in June 2008, completed the Army's Limited User Test according to schedule, in November, at the Yuma (Ariz.) Proving Ground.

"Meeting calendar objectives while integrating new capabilities confirms the maturity of the multiple technologies conceived, designed and developed by Boeing and our key partners for the Apache Block III helicopter," said Al Winn, Boeing Apache Programs vice president. "Our success highlights the value of cooperative development."

The Army and Boeing continue to work toward an anticipated Department of Defense acquisition process Milestone C decision in April 2010.

Deagel

Citation :

Montage of footage shot via the gun camera of US Marines AH-1W Super Cobras during the US invasion of Iraq in 2003. For an indication of which weapon is being fired, see the top-right of the display:
HF = HellFire AGM-114 (laser-guided)
TOW = BGM-71 TOW (wire-guided)
GUN = M197 20mm Cannon

PS : Il n'y a pas de musque dans la video, merci WMG !! Mais la video en elle Même est trop magnifique !!

Don't mess with the Hellfire

Une petite dernière pour la route ?



-- Photo en 800x1200 pixels --



Un vrai déluge de feu !

Jimmy Van Drunen

KA-52 cockpit :

Citation :

Fokker to provide Forward Avionics Bays for Boeing AH-64D Apache Block III helicopters

Papendrecht, 29 July 2010 – Fokker Aerostructures and Boeing Rotorcraft Systems have reached an agreement to develop and produce the Forward Avionics Bays for the AH-64D Apache Block III helicopters



The Forward Avionics Bays (FABs), mounted on both sides of the Apache helicopters, form the housings for the aircraft’s avionics systems. The Block III FAB is based on a new concept which is lighter and incorporates maintainability improvements. The development activities have already started at the Fokker facility in Hoogeveen (Netherlands). During the development phase the company is working closely together with Boeing Rotorcraft Systems in Mesa. Delivery of the first hardware is scheduled for 2011. Fokker will deliver 43 sets during the planned low rate initial production (LRIP) phase. The total program has a potential of 800 sets. This program provides highly qualified work for 70 specialists at Fokker in Hoogeveen.

This order confirms Fokker’s position as specialist for complex, lightweight aerostructures. Fokker and Boeing have been working together for 14 years in the Apache program and Fokker has now produced almost 900 FAB sets for the Apache AH64D Longbow in Hoogeveen. This new agreement extends the relationship to the newest Apache, the AH64D Block III, making it a milestone in the partnership between the two companies. The Apache helicopter will be used worldwide by numerous countries. The Netherlands has 29 helicopters, which have proven to be of great value in missions such as that in Afghanistan.

Hans Buthker, CEO of Fokker Aerostructures, said: “We are delighted with this new opportunity to grow further, create additional highly qualified employment in Hoogeveen and further extend the relationship with Boeing. We are proud that Boeing has again selected our company. There is an excellent partnership between our specialists and the Boeing team.
This new program will make a significant contribution to the further development of knowledge within our company.

Source: Fokker

Citation :

AH-1Z Cobra



Posted 8/7/2010
ATLANTIC OCEAN (Aug. 2, 2010) An AH-1Z Cobra helicopter assigned to Rotary Wing Aircraft Test Squadron (HX) 21, based in Patuxent River, Md., approaches the amphibious assault ship USS Wasp (LHD 1). This upgraded version of the Cobra is not yet available to the fleet. The helicopter features a larger engine and has two more blades than the Cobra's original two, giving it more power and maneuverability. Wasp is conducting test flight operations and was chosen as the platform to evaluate the limits and capabilities of newer models of aircraft. (U.S. Navy photo by Mass Communication Specialist 1st Class Rebekah Adler)