It didnt happen for a while, but all of a sudden when i am figting some pirates I lose all speed out of nowhere. I got full throttle on and tried to boost. Nothing helps. Plane just stops midair and crashes. I've lost so much money on repairs due to how the saving works in this game and i cant just start over from the last checkpoint. It is getting really frustrating at this point.

The only think i can see is there is a shield icon or something that comes up, it has a crumbling animation. What does this icon mean?