And about the UAE demand to have a more powerful RBE2 radar, could it answer to some expectations for the Air force?
The Air Force is interested in having a RBE2 with an active antenna. It is now established with the powerful AESA antenna which will equip our tranche 4 Rafale. What the Emirians are calling for is much more complex. They want, in addition to the AESA, to have new functionalities on their Rafale, such as GMTT / GMTI (detection and tracking of moving ground target), interlacing between air/air and air/ground modes, etc.. Even if this is not for us an urgent need, the operational 'plus' obtained could nonetheless eventually interest us. However, the key Emirian demand is about the range of the RBE2. And, with the same antenna diameter, the only way to achieve the 10% range increase (compared with the Basic AESA F3 "roadmap") that wish to obtain the Emirians, is a big boost to the power of the radar.
But more power to the RBE2, could it be a risk to generate serious electromagnetic interference (EMI) with the SPECTRA receptors ?
There is indeed a very real EMI risk to treat. This is the case whenever we want to change aircraft emission systems. There are solutions, obviously, but this will require to reexamine SPECTRA. But the biggest problem we have identified is about electric generation, which could be insufficient. To increase the maximum range of a few nautical miles, we would have to deeply review the electrical generation system of the aircraft.
In short, to conceive what it could be a Rafale-9, that is to say a new aircraft moving away from the similarity you want with french Rafale. The Emirati experts participating in negotiations are well aware of the problem. But they are also used to have very high quality weapons systems. They want to avoid any regression with the Rafale, at least on the radar range, compared to the F-16 Block 60, the Rafale having also many other qualities. The Emirians don’t have AWACS and therefore want - it is a fundamental requirement - that the Rafale can see very far. Beyond the radar, they are showing fairly strong requirements into SPECTRA development with, for example, the expansion of some frequency bands, an increased sensitivity, adding functionalities; in short, they want we push up the current technologies. Of course, to improve the electronic warfare of our Rafale faster than originally planned could be an additional operational advantage for the Air force. However, our current approach is to consolidate the features implemented in SPECTRA, to make them more robust and make it easier for operators and programmers before wanting to go further into addition of new capabilities. The current SPECTRA is working well and even very good. In sum, what separates us, about Spectra, is a matter of timing and calendar […]. In a more general way, we share the same wishes about capabilities, but with very different maturities calendar sometimes. Budgetary constraints remain a dimensioning factor.
