jazbar ::
A što je to sporno sa Tranšom 1?
Izgleda da je u pitanju radar i druga avionika koja ne može lako da se upgraduje (barem ne bez velike love) . Mada opet , za Peru i Južnu Ameriku bi bio sasvim dobar kad bi malo spustili cenu jer za te pare mogu da kupe dobar ruski ili kineski nov avion sa AESA radarom . Citiram šta je neki lik napisao na drugom forumu :
Citat:
1. Most of the proprietary computing hardware (e.g. in the radar, weapons, ecm and flight systems) is exchanged with AltiTec PowerPC Systems
2. To utilize all those computing power, all sensor software routines (radar, IRST, ECM etc.) have been improved and partly rewritten (higher resultion SAR, MTI, AESA-modes and improved functionality. Further more the flight software has been updated and more weapons integrated integrated. Tranche 2/3 also offers more sensor fusion functions and other gimmicks.
3. The Captor-C radar in the tranche 1 aircraft's cannot be upgraded to the tranche 3's CAPTOR-E radar, meaning, it needs to be replaced entirely (however tranche's 2 CAPTOR-D can be upgraded to CAPTOR-E).
4. Due to system's inter-dependencies, you also have to replace couple of support systems
5. Upgrading being complex anyway, T1-toT3 became even more expensive and risky, which means of lots of additional man power and time is required, making the efforts even more expensive - rendering it finally to expensive.
This exercise might easily cost 20-30 m EUR per plane and 2 years off-time (the R2 upgrade from Block 1/2 to Block 5 alone took at least 10 months depending on the original Block). So upgrading the 55 RAF planes alone, runs easily into the 1.5 b EUR range.
For comparison: German Air Force's upgrade of 85 Tornadoes from ASSTA 1 to ASSTA 2 had a price tag of 1.2 b EUR (update of display systems, self-defense suite, weapons integration and MIDS preparation excluding MIDS integration and MIDS terminals). This all being relatively simple compared to a T1-to-T3 upgrade, because the basic underlying systems remain the same ...
This in mind, GAF was very happy to hand-over some of their T1s to Austria in exchange for new-built T2s and reduce their T1 single seaters to a squadron-equivalent
airliners.net/aviation-forums/military/read.main/130355/
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