The serious testing of this aircraft will begin once the full-up maritime surveillance systems have been installed, and there will be very little on the web about how that goes, but initial envelope clearance has begun. This may seem like a yawner, since the 604 has been flying for years, but when they get to high AOA tests, I'm sure they will be on the edge of their seats. The large protuberances just ahead of the wing leading edge could generate some surprises when it comes to stall behavior. Not only that, any unexpected flow disruptions not only impact main-wing stall, but they ripple back to impact the longitudinal control surfaces used the break the stall as well. Stay tuned.
(Photo Credit: Aviation Week)
http://blogs.ottawacitizen.com/2014/03/05/field-aviation-completes-first-test-flight-of-boeings-maritime-surveillance-aircraft/
A more recent article says that so far the flying qualities remain good.
http://www.flightglobal.com/news/articles/field-aviation-achieves-first-flight-of-boeing-maritime-surveillance-396659/
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