"Wayne.B" wrote in message
...
On Mon, 11 Aug 2003 22:01:11 GMT, "Rural Knight"
wrote:
believe me, once you
get used to "checking your six", it becomes second nature and
saves a lot of grief.
========================================
Just curious, what does "checking your six" mean, and where does the
expression come from?

It's an expression related to combat (and other things) and
means to check behind you. Think of the face of a clock -
twelve would be high or in front (depending on plane), six
below or behind (depending on plane), etc.

It's a way to orient yourself in free space.

Later,

Tom