Light surface below wing edges is the AN/APQ-181 radar antenna
In 1991, the B-2 Industrial Team (including Hughes as a major subcontractor) was awarded the Collier Trophy in recognition of the "design, development, production, and flight testing of the B-2 aircraft, which has contributed significantly to America's enduring leadership in aerospace and the country's future national security."
In 2002, Raytheon was awarded a contract to develop a new, active electronically scanned array (AESA) version of the APQ-181. This upgrade will improve system reliability, and will also eliminate potential conflicts in frequency usage between the B-2 and commercial satellite systems that also use the J band.
In 2008 the Federal Communications Commission accidentally sold the APQ-181 frequency to a commercial user resulting in the need for installing new radar arrays at a cost of over $1 billion. All B-2 aircraft are expected to have the upgraded radar by 2010.[1]
^. military.com. Archived from the original on March 26, 2009.
External linksEdit
spacedaily.com article
October 16, 2023
weather, probability, intercept, phased, array, radar, system, designed, hughes, aircraft, raytheon, force, spirit, bomber, aircraft, system, developed, 1980s, entered, service, 1993, provides, number, precision, targeting, modes, also, supports, terrain, foll. The AN APQ 181 is an all weather low probability of intercept LPI phased array radar system designed by Hughes Aircraft now Raytheon for the U S Air Force B 2A Spirit bomber aircraft The system was developed in the mid 1980s and entered service in 1993 The APQ 181 provides a number of precision targeting modes and also supports terrain following radar and terrain avoidance The radar operates in the Ku band a subset of the J band The original design uses a TWT based transmitter with a 2 dimensional passive electronically scanned array PESA antenna Light surface below wing edges is the AN APQ 181 radar antennaIn 1991 the B 2 Industrial Team including Hughes as a major subcontractor was awarded the Collier Trophy in recognition of the design development production and flight testing of the B 2 aircraft which has contributed significantly to America s enduring leadership in aerospace and the country s future national security In 2002 Raytheon was awarded a contract to develop a new active electronically scanned array AESA version of the APQ 181 This upgrade will improve system reliability and will also eliminate potential conflicts in frequency usage between the B 2 and commercial satellite systems that also use the J band In 2008 the Federal Communications Commission accidentally sold the APQ 181 frequency to a commercial user resulting in the need for installing new radar arrays at a cost of over 1 billion All B 2 aircraft are expected to have the upgraded radar by 2010 1 See also EditList of radars Joint Electronics Type Designation System JETDS References Edit Bandwidth Demands Crowd Military Needs military com Archived from the original on March 26 2009 External links EditRaytheon product description spacedaily com article Retrieved from https en wikipedia org w index php title AN APQ 181 amp oldid 1103222295, wikipedia, wiki, book, books, library,
