King’s College London
Liddell Hart Centre for Military Archives
Copyright: The texts of the detailed catalogues are the copyright of King’s College London and are made available for private research only.
MENAUL 5/5/1-642 Papers relating to military technology for defence, 1961-1985
MENAUL: 5/5/326 1977
“Hughes Aircraft Company press release photograph: artist’s impression of the “Flexar” system, flexible adaptive radar”
MENAUL: 5/5/480 1977 Sep
“Hughes Aircraft Company report: ‘Flexar. An adaptive radar for track-while-scan weapon control’.”
http://www.kcl.ac.uk/lhcma/cats/menaul/mn0505b.htm

L-X radar and the FLEXAR radar
http://www.ll.mit.edu/news/journal/pdf/vol12_no2/12_2detectcruisemissile.pdf

Flexar Mobile Hawk
http://sill-www.army.mil/famag/1981/SEP_OCT_1981/SEP_OCT_1981_PAGES_58_61.pdf

AEGIS is a system that was developped since the end of the WWII with SPG59 Typhoon, SPG32/32 SCANFAR and finally SPY-1 developped since 1969
http://www.strategypage.com/militaryforums/8-6796.aspx

SPG-59/Typhon
The first attempt at an operational phased-array system commenced in 1958 as a US Navy venture. The aim was to develop an extremely advanced surface-to-air (SAM) system called Typhon, which would offer significantly enhanced multitarget abilities than the existing family of Terrier, Thrtar, and Talos systems. These systems, while technological marvels in their own right, were never designed to handle the then-emerging threat of huge numbers of bombers and antiship missiles entering service with the Soviet Naval Aviation (AV-MF).
http://goliath.ecnext.com/coms2/summary_0199-2902315_ITM

Plenty on Typhon SPG59:
http://www.astronautix.com/lvs/typhonlr.htm
http://astronautix.com/lvs/typhonmr.htm
http://www.designation-systems.net/dusrm/m-50.html