Always been curious - why do the Navy salute with their hand flat and the Army and FAF with their hand vertical?
When I was taught at BRNC, we were told it was due to Queen Victorias dismay at the dirty state of Jolly Jacks hands, due to the tar and pitch from the rigging, so salutes were palm down from then on. Same with the loyal toast, the Navy stays sitting, because Charles 1st stood up for his toast, banged his head and was not amused.