"Why does the [?] ADD[?] probe have a flipping dayglo background?"
Might be to show the RVSM protected airflow area?
Might be just to show that there's something sticking out?
Might be because RJ's have that as a mandated Placard? (I don't think the original 146-100/200/300's did)
Last edited by Rigga; 27th Jan 2013 at 21:07.