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Originally Posted by TarJak
There is a concern that someone would be able to get to the Nav system from the onboard passenger network and Boeing is looking at how they would use a combination of hardware and software to create a one way network connection to allow selected Nav data to be made available to passengers.
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The cruise ship I worked on had a completly separate system for the position and weather shown on the staterooms TV... We had to update the silly thing by hand, except for GPS data. Entering the courses in the thing took longer than programming the actual nav. computers. I loved it when broadcast called in the middle of departure manoeuvers to order us to correct some erroneous info right away, and threatened to call the captain on us when we got curt.
I suppose they'll ressort to a simillar system; although since the navigation team of an aircraft has less deadtime on their hand, they'll probably spring for the external sensors, or connect it to a shoreside database for routes, wx info, cocktail of the day and such.