Any idea what was changed in the revised ESR from 1994?
Sorry for the late reply. I have no exact view of all changes, or when they occured (some were already introduced around 1990, others followed later).
From what I have gathered and I'm not entirely sure on the correctness of all of them:
- Reduction of scatter factor for the fatigue spectrum from 5 to 3
- Ultimate structural load factor from 1.5 times the operational design load limit to 1.4
- Reduction of weight and space budget for national fit items and DASS (incl. deletion of fin tip mounted 3rd DASS pod)
- Deletion of maintenance datalink requirement
- Deletion of IR signature reduction measures for EJ200
- Relaxion of nuclear hardening requirements
- Reduction of the use of fibre optical data busses (use of standard STANAG 3838/MIL STD 1553 instead)
- Reduction in radar specifications (it has been suggested that the number of simultaneous tracks was reduced, but had no real effect as radar was already too advanced, possibly also with hintsight of Germany using another solution in shape of APG-65)
- Deletion of AG requirements for Germany incl. abandonement of plans to integrate AGM-65B Maverick and AGM-88 HARM in use on German F-4F and Tornados)
The list is not necessarily complete as outlined above.