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JA 37:Pilot och system: transkript av ett vittnesseminarium vid Tekniska museet i Stockholm den 11 december 2007
KTH, School of Architecture and the Built Environment (ABE), Philosophy and History of Technology.
2008 (Swedish)Report (Other academic)
Abstract [en]

The witness seminar ”JA 37 – Pilot och system” was held at the National Museum of Science and Technology in Stockholm on 11 December 2007 and was led by professor Karl Johan Åström. Different aspects of the use of Information Technology in the development of real time control systems in the fighter version of Viggen (JA 37) were discussed and debated, with special emphasis on integration of the systems surrounding the pilot. The critical importance of close cooperation between development engineers and test pilots, primarily at the customer FMV and the main contractor Saab, at LM Ericsson and Svenska Radiobolaget, and test pilots at Saab and the Swedish Air Force was underlined. This also included the emerging use of mission and task analysis, system simulators and early flying experimentation and test beds. The basic arcitechture of the airborne system with a central computer to which most of the major sub-systems and equipment was connected was carried over from the Attack Viggen System (AJ 37) with its single digital computer. The total system functionality and capability was vastly improved due to the introduction of digital computers in all major subsystems, an inertial platform, built-in test and data recording systems for maintenance, mission performance feedback and training purposes. A major undertaking was the development of an integrated Electronic Display System with three major displays: a Head-up Display (SI), a Tactical Situation Display (TI), including an all electronically generated map function, and a Radar/ Target Display (MI). In particular the development of the Tactical Indicator (TI), made possible by new solid state technology, facilitated more autonomous fighter tactics than possible with previous radar based command and control system. The all important challenge for the JA 37 project was the development of the pulse dopper radar PS-46/A, a task carried out by LM Ericsson with support from Hughes Aircraft Company and guidance from FMV. Special attention was paid to the use of digital computers for highspeed signals processing. Moreover, the critical design choice of medium pulse repetition frequency was debated. Finally, software development tools and methodology were discussed.

Place, publisher, year, edition, pages
Stockholm: Filosofi och teknikhistoria , 2008. , 51 p.
Trita-HST, ISSN 1103-5277
Keyword [sv]
Försvarsforskning, försvarsindustri, militärhistoria, militärteknik, teknikhistoria, piloter, stridspiloter, militärväsen, kalla kriget, arméflyg, flygindustriFörsvarsforskning, försvarsindustri, militärhistoria, militärteknik, teknikhistoria, piloter, stridspiloter, militärväsen, kalla kriget, arméflyg, flygindustri
National Category
History of Technology
URN: urn:nbn:se:kth:diva-4656ISBN: 978-91-7178-877-1OAI: diva2:13266
Available from: 2008-10-28 Created: 2008-10-28 Last updated: 2012-03-20

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