Boeing has escalated a campaign to persuade the US Air Force to replace the Northrop Grumman E-8C joint surveillance target attack radar system (Joint STARS), warning that actual costs to modernise the 707-based surveillance fleet may exceed official estimates by up to five times.Boeing's analysis of the cost to upgrade the E-8C with an active electronically scanned array (AESA) sensor, new engines, wide-band communications, modern avionics and a self-protection system, ranges between $10-$15 billion, said Egan Greensteing, a Boeing senior manager for business development.
That number compares to a $2.9 billion estimate developed jointly by the USAF and Northrop, which includes a "radar technology refresh", a communication network upgrade, a self-defence suite and cheek radar arrays.
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