Mapping Boat 'Fly Away' during Mission - WHY?

Boat: 3-meter trimaran

Motor: 2.5hp Suzuki 4 stroke

Controller: PixHawk

Mapping Speed 14-19kph (4-5m/s)

Fly Away - 

a. During the North / South routes everything seems ok, except the wobbly course

b. When the East / West routes start, it immediately fails to do the short route from #52 to #54, but rather does a full west run to nowhere, then returns to #54, but then skips #56 and #58 and goes straight to #60, BUT NOW THE ROUTE IS IN THE WRONG DIRECTION!

c. Then rather than gpoing to #62, it heads off to #58, and then east to #62.  AT THIS POINT THE MISSION IS DESTROYED, and the costly craft is now LOST AND GOING NOWHERE!

HOW THE HELL DOES THIS HAPPEN?

Every time I go mapping something like this happens, this is not what we are looking for from an 'autonomous' ground control system.

If I am doing something wrong please let me know.

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Arduboat Mission.kml

plan2.png

Inanda 18May2017.waypoints

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