Block one tests were conducted overnight Friday into Saturday morning, and covered the dry-run of the B1 “flight”.
The second block, covering an additional B-1 flight plus tests of the General Electric-developed Common Core System (CCS), was formerly set for yesterday but is now scheduled to be underway as I write this on the afternoon of May 30. Testing on the CCS, which supports nearly 100 applications on the 787, is thought to be focused on calibrating the “time stamp” function which will be used to help co-ordinate system events during testing. Chief CCS functions include navigation, displays, flight management, health management, crew alerting and maintenance.
Block three, set for overnight and into the early hours of May 31, covers propulsion and electrical system tests.
Block four, covering gauntlet tests of further electrical systems as well as the hydraulics, avionics and environmental control systems, is set for tomorrow morning.
A fifth block, currently scheduled to run through until late Sunday night, will cover further CCS tests as well as flight control system runs.
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