Enviado: Qua Mar 21, 2007 11:17 pm
Só o Gripen que nao deve estar gostando, afinal é papo de gente Grande!!!!!
Einsamkeit escreveu:Só o Gripen que nao deve estar gostando, afinal é papo de gente Grande!!!!!
zela escreveu:Rafale com CFT:
Patton escreveu:Ja' li muito sobre o Rafale e infelizmente parece que esse aviao e' apenas um "Hornet" Frances.
old escreveu:Patton escreveu:Ja' li muito sobre o Rafale e infelizmente parece que esse aviao e' apenas um "Hornet" Frances.
Los Franceses han pagado muy caro su desarrollo independiente. El Rafale, aunque equivalente es inferior al Thyphoon. Despues de leer multitud de informes y paginas queda evidente.
Tienen problemas financieros y quiza el mas grave sean las ventas al exterior para financiar el programa. Cualquier comprador pide contraprestaciones industriales y el Rafale no las ofrece. Tratan desesperadamente de colocar sus aviones a paises como Marruecos o Libia.
Tambien esta el problema de los repuestos y arsenales. Armamento frances muy caro y que dejaria al posible comprador a merced de los intereses Franceses..
Ja' li muito sobre o Rafale e infelizmente parece que esse aviao e' apenas um "Hornet" Frances.
Así, el precio conocido del Rafale es más que dudoso (pues es un producto no terminado y con dificultades de desarrollo).
Por su parte, el EFA si tiene más apoyo financiero y su desarrollo avanza más confiadamente, pero eso no quita que sea un avión CARISIMO y no muy imaginativo...
En esas condiciones, una vión tipo F-15 modernizado tiene muchas más ventajas, tal como lo ha demostrado el resultado comercial.
Degan escreveu:Siendo el Rafale un avión con más potencial que el EFA, con más alcance y capacidad de carga....se quedó muy atras en su desarrollo, llegando al punto de ser dudoso su futuro comercial.
Así, el precio conocido del Rafale es más que dudoso (pues es un producto no terminado y con dificultades de desarrollo).
Por su parte, el EFA si tiene más apoyo financiero y su desarrollo avanza más confiadamente, pero eso no quita que sea un avión CARISIMO y no muy imaginativo...
En esas condiciones, una vión tipo F-15 modernizado tiene muchas más ventajas, tal como lo ha demostrado el resultado comercial.
Modern fighter radars
Military Technologies – July 2006 – Stefan Nitschke
The advent of AESA Technologies
The Link 16 Datalink, GPS-guided precision weapons and modern radars are the latest advances incorporated into fourth-generation fighters. The next step is the replacement of mechanically scanned antennas by AESA radars. Examples of fighter radars with ESA antenna are the Thales RBE2 and the Russian SBI-16 ZASLON, Phazotron ZHUK Ph and NIIP N-011M BARS. The enabling technology for AESA is the Gallium Arsenide Microwave Monolithic Integrated Circuit (GaAs MMIC) or microwave circuit on a single chip. The phase shifters are replaced by T/R modules, thus eliminating the central transmitter and receiver. These technologies have become mass industrial products over the past two decades. The upcoming RfP for the Indian Air Force's multi-role fighter programme could dictate a requirement for all contenders to be equipped with AESA radar. This would eliminate all European contenders and would leave the F8A-18E/F (AN/APG-79) and the F-16E/F or F-16C/D Block 50/52+ (AN/APG-80) to face the single rival bid of the MiG-35 with EL/M-2052 radar.
In 1993, the GTDAR consortium of BAE Systems, Thales and EADS began working on the Airborne Multi-mode Solid-state Active array Radar (AMSAR) programme, which aims to demonstrate the capabilities of AESA radars for combat aircraft. AMSAR is planned to offer a 50% range increase over the CAPTOR and the capability to track up to 20 airborne targets simultaneously. In addition Thales has been working on an updated version of the RBE2, dubbed RBE2-AA, that would use an AESA array in place of the current ESA model. This variant is scheduled to enter service with the french Air Force after 2012 as part of the RAFALE F4 configuration.
From Demonstrator to Product
In April 2002, the Euroradar consortium started developing an AESA radar designated “CAESAR“ (CAPTOR Active Electronically Scanned Array Radar). The companies pooled their expertise and funding in order to demonstrate that the path from a mechanically scanned CAPTOR to an electronically scanned CAPTOR derivative could be readily accomplished in a fast, low risk programme.
The design focus was that, on the one hand, CAESAR should be fully adapted to the installation environment of the Eurofighter Typhoon platform and, on the other hand, should keep essential components of the existing CAPTOR radar in view of constant system evolution. To achieve this, CAESAR uses the Receiver and Processor of the CAPTOR and, in addition, has a new power supply adapted to the AESA, an ACU (Antenna Control Unit) and the actual AESA antenna.
In a period of slightly more than three years, the new LRIs (Line Replaceable Items) have been developed, tested and integrated into the overall system. There followed the installation in the BAC 1-11 trials aircraft and the ground testing of the system.
February through April 2006 the practical test took place: CAESAR completed its maiden flight on board the trials aircraft flying over the South-West of the UK.
During the following flight campaign lasting five weeks and involving seven individual flights, CAESAR spent more than 20 hours in the air without registering any failures.
After completion of the flight tests, an enormous quantity of data is undergoing evaluation.
The initial analysis shows that CAESAR by far exceeded expectations.
For the remainder of 2006, a further test series is planned with the BAC 1-11 and also several flights on board the Eurofighter Typhoon – this event is being eagerly awaited, and not only by the radar development team.
This success of CAESAR has paved the way for using an AESA radar in the Eurofighter Typhoon. Euroradar has laid the foundations for further evolution of the CAPTOR, through the productionisation of CAESAR, which will give front-line pilots radar capability which will match all future requirements and threats
old escreveu:Por ultimo recordar que las pruebas del Rafale se iniciaron el 1986 y las del Efa en 1994 y aun asi y todo el EFA ya adelanto al Rafale.