Moderadores: Lepanto, poliorcetes, Edu, Orel
El fondo de la cuestión es la incapacidad para considerar que a medio plazo nos podemos llegar a enzarzar con el vecino del sur.
Orel escribió:El EFA tiene sendos lanzadores BOL 150 de SaabTech, cada uno capaz de llevar 160 paquetes de chaff (320 en total). Aparte lleva sendos lanzadores de bengalas de Elettronica Aster SpA, cada uno capaz para 16 bengalas (32 en total).
¿Alguien sabe si el dato de las bengalas es correcto? ¿Se piensa incrementar la capacidad al respecto?
15:37 GMT, May 27, 2010 EADS Defence & Security (DS) has invested in an extension to its Microwave Factory (MWF) in Ulm and has thus increased its high-tech capacity for specialised high-performance electronics, e.g. next generation radars, to reach a leading level worldwide.
In this context, Defence Electronics, an integrated activity of DS, has invested 1.5 million euros to extend its skills and capacity for the production of high-frequency modules under clean-room conditions. From the beginning of this year the Microwave Factory now has about 2,000 square metres of clean-room space available. Approximately 200 employees are working here on the development and production of high-frequency and microwave modules which are intended, in particular, for the self-protection system of the European Eurofighter combat aircraft or for the TerraSAR-X satellite radar.
...Si viene un cachondo y se ríe porque cazas con 30 años de antigí¼edad vuelan con AESA y el Tifón no, pues a tragar. Y si te dicen que el avión llega tarde en el tiempo, pues a tragar porque también es verdad. El Tifón, pese a todos, pese a la propia industria, se defiende él solito con sus virtudes que son muchas. Lo que no se puede es negar las evidencias, porque así parece que hay algo que esconder, y frente a todas esas verdades que nos dicen hay otra verdad superior, y es que el Tifón actual, con sus carencias y retrasos, le da sopa con ondas a esos cazas que ya vuelan con AESA y un montón de guirnaldas más. La diferencia es que uno necesita de esas guirnaldas para poder mantenerse sobre los escenarios, mientras que el otro puede prescindir de momento de ellas, por superior cualidad operativa.
31/05/2010 (Infodefensa.com) Madrid
El secretario de Estado de Defensa (SEDEF), Constantino Méndez, afirmó que hay que prepararse para "nuevas reducciones" del presupuesto de Defensa.
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- ¿España tiene la necesidad de la segunda fase de la Tranche lll del Eurofighter? Si se va a contratar, ¿cuántas aeronaves?
- A lo largo de 2008 y 2009 ya hubo que negociar la realización de la Tranche III del Eurofighter, en medio de diferencias de criterio entre los países. Se optó por dividirla en dos fases. Estamos realizando la Tranche III A, que supone para España la construcción de 20 nuevos aviones. Haremos un análisis sobre la conveniencia de abordar la fase B, que prevé 14 aviones más. Realizaremos un informe final en tal sentido que servirá de base para las negociaciones con nuestros socios y la industria. Los expertos ponen de manifiesto que la capacidad necesaria está garantizada con los aviones ya comprometidos por lo que debemos considerar si abordar o no la nueva Tranche. (tenemos 73 contratados).
En todo caso los socios estamos volcándonos en la incorporación de nuevas mejoras de los sistemas del avión cara a la exportación de este modelo que es uno de los mejores cazas del mundo y que satisface plenamente los requisitos de capacidad establecidos por el Ejército del Aire. Quiero recordar que Eurofighter ha sido y sigue siendo un gran programa: el mayor proyecto aeronáutico militar de Europa, un gran ejemplo de cooperación entre países e industrias, un gran motor de los avances en la tecnología y un auténtico laboratorio para el aprendizaje de nuestra industria y nuestros técnicos, así como un proyecto generador de empleo de alto valor añadido.
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Forista A: al mismo tiempo se completan estos cuando ingleses e italianos han dicho que ni se molestan en modernizar los ya entregados no es que chirrie, es que canta por soleares.
Forista B: Que acabariamos con dos lotes lo llevo yo diciendo mucho tiempo. Los T1 y T2 se llevaran al estandar del T2.. pero dudo que antes de MLU se equiparen a T3... mas si las mejoras gordas tipo CFT o AESA se incorporan (si se desecha todo y solo es mejor DASS y software y casco y pijadas...puede)
TAYUN: Eso desde luego no es lo que oficialmente está previsto a día de hoy. Será en una u otra versión, con más o menos complementos, pero todos homogenizados en las respectivas fuerzas, cada una como considere oportuno.
Forista B: Las previsiones eran 87....
quiero decir que todo cambia y, hoy por hoy, como el T3 incorpore AESA, EJ2xx o FCT el EdA no va a poder permitirse meter en factoria los 53 flamantes tifon T1-2 para incorporar eso.
TAYUN: Sí, y 87 homogenizados. Esas siguen siendo las cuentas a día de hoy.
The second and more likely potential replacement, announced by Germany's Bodenseewerk Geratechnik (BGT) in June 2001, is termed PIMAWS, or Passive Infra-red Missile Approach Warning System. PIMAWS began development in 1997 as an advanced technology demonstrator jointly funded by the German Ministry of Defence and BGT, the project is due to complete in 2003.
The system is intended for installation as Line-Replaceable Units in both of the wing-tip pods achieving full spherical coverage.
http://typhoon.starstreak.net/Eurofight ... pimaws.jpg
The detector portion of the system is a step-stare infra-red sensor operating in the 3-5µm frequency range allowing for both air to air and surface to air missile detection up to the post-burn-out phase. All the resulting data is fed into a custom designed image processing system utilising a Systolic Array Processor and DSP. Over 64 targets can be tracked simultaneously and through a built-in threat library they can also be determined. All the resulting data can be fed via a STANAG-1553B databus to the rest of the avionics, here one unit acts as the master the other the slave. This should allow the information to be fused with the other AIS sources. Although ground tests have been carried out and flight tests are scheduled for October 2001 no decisions have been reached by EADS or the partner nations as to whether PIMAWS will be integrated into Eurofighter.
http://typhoon.starstreak.net/Eurofighter/defences.html
PIMAWS as an IR device with high sensitivity and high signal processing capacity
is able to provide the pilot with additional information about thermal signatures in its
field of view and thus perform '' at least partially '' the functionality of an IRST.
The PIMAWS then performs as a forward looking IR camera,
which is pointable within the whole hemisphere of 360° by +- 90° (centre of image), so
off course it is also capable of looking aft of the aircraft. The image can be
transferred to the cockpit crew for display purposes (heads-up-display).
The initial basis for the PIMAWS development was a Draft NATO Staff Requirement for
passive missile warners, stating the following basic requirements:
· Detection range of up to 10,000 m in front aspect ahead of the flying carrier
· Maximum false alarm rate of 1 per 2 hours
· Detection probability of more than 95%
The requirement for post-burnout tracking was added by the German MoD.
The PIMAWS concept is characterized by the following major aspects:
· Monospectral zenith scanner in the medium IR wave band (3-5 micrometer)
· Optical step-and-stare system for realizing long integration times and thus long
detection ranges
· Total scan rate of 6Hz with large field of view of 360º x 105º per unit
· Real-time image processing algorithms
· Low false alarm rate
The hemisphere is scanned in tiles of approx. 30° x 30° for possible
targets. These surface areas are transferred through the double-Dove prism and a
subsequent lens to a Pechan prism. The image rotation caused by the azimuth rotation is
compensated by this Pechan prism. Thus, a de-rotated image is obtained on the detector.
Figure 3: Step-and-stare principle
Subsequently, the beam path is conducted via a path-folding mirror and the detector lens
to the detector. Through an appropriate optical element in the beam path, the image
blurring caused by the elevation scan is compensated by a movement in the opposite
direction during the integration time of the detector.
In order to achieve the sensitivity required for post-burnout tracking, no multispectral
optical design (two colours) has been implemented.
The optical system optimised for the spectral range from 3 to 5 micrometer thus achieves
maximum sensitivity. As detector, a 256 al cuadrado CMT of the German company AIM is used.
PIMAWS can be operated in the following modes of operation and is therefore a real dual
use equipment:
- Hemispherical missile approach warning system
- Ringmode missile approach warning system or surveillance device
- Imaging pointable forward looking infrared camera
One out of these three modes of operation can be chosen at a time.
Post-Burnout-Tracking capability
At the beginning of a flight, the signature of a surface-to-air missile is relatively intensive
in the boost and sustain phases. Then the signature, of course, breaks down – for both IR
and UV. Due to the aerodynamic heating, however, the missile’s IR signature will get
more intensive again as the missile continues its flight and approaches its target.
Owing to its system design, PIMAWS can re-detect post-burnout targets at a distance to
the flying carrier sufficient for triggering countermeasures and alarm in due time.
Dual Colour
PIMAWS is designed to collect as much as photons as possible to gain the largest
detection ranges. Therefore, the MWIR is not split into two or even more bands. Instead
of a physical false alarm reduction by comparing several bands PIMAWS gets an
excellent false alarm rate by the intelligent real-time image processing with only one
colour. As long as the gain of performance of a multi-colour system and the economical
availability of multiband detectors is not given, PIMAWS will stay with one colour.
Collision Avoidance
The collision avoidance capability of PIMAWS is a fully software based feature. But
a few pre-requisites have to be fulfilled:
...
All this prerequisites are fulfilled by PIMAWS.
PIMAWS Main Characteristics
Spectral range MWIR 3-5 micrometer
Field of regard (per unit) 360° x 105°
Scan rate (per unit) 6 to 36 Hz
Scan rate (per shipset) 11Hz
Detector 256 al cuadrado CMT
Sensor head dimensions 105 x 65 mm
Weight (1 LRU, per unit) 40 kg
As written above, UV-MAW are not able to detect post-burnout missiles. This
feature is to IR-MAW only. The actual trend in IR-missile warning goes into staring
system - one or more colours. For a spherical coverage at least 6 to 8 staring sensor heads
are required. PIMAWS only needs two for a real spherical coverage.
Summary
The technical highlights of the PIMAWS can be summarized as follows:
The PIMAWS achieves its long detection range in the MWIR with a 256 al cuadrado CMT-FPA
through the implemented step-and-stare system. A sufficient false-alarm rate is achieved
when utilizing only one colour. The post-burnout-tracking capability is realized by
bridging the time from signature breakdown to subsequent re-acquisition in memory
mode. Prerequisite is the ability, to have the very high sensitivity to detect post-burnout
missiles.
The high system accuracy will allow direct control of future DIRCM systems and of
flares. The standard interfaces Mil-Std 1553 Bus and RS 422 enable the retrofit for a
variety of carriers. The high scan rate of about 11Hz per shipset with a field of view of
360° x 105° allows full spherical coverage with only two units per carrier, this keeping
installation and overall costs low.
With PIMAWS, the next generation of IR-MAW with post-burnout-tracking capability
for direct control of countermeasures for jets and transporters is on the advance.
El MAW tiene ¿dos o tres? antenas: para la zona frontal ¿en las raíces de ambas alas? (aquí necesito que me despejéis la duda).
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