Hi everyone. I downloaded the Boeing Technology Demonstrator livery and I like the looks of it but noticed something that's a bit odd. There is a black line attached to the top of the tail with a 90 degree bend downwards and a small red triangle at the tip. I'm just wondering if it's supposed to be there or if it's a fault in the program. I suspect the latter. Has anyone else noticed this?

It is a part of the flight test package, measures ambient air pressure (and maybe temperature) - it has to be on a string and away from the airplane not to be affected by the plane itself.

Good to know. Thanks for the information.