Holy Cow! That's pretty interesting re: the red flags. And what the heck kind of Union Jack is that to fly on the QM2 anyway? With a red background? I don't think so.
![](http://www.royal.gov.uk/files/images/Monarchy5_D1_7_3_07.jpg)
Just a long shot, if you google "red flag" on images- there are some interesting results. One of which is a picture labelled "preflight".