Bob,

<<<While that's a good "rule of thumb", you need to remember that those
who make up rules for airlines are not rocket scientists.  In fact,
they are not even high-school physisists or mathematicians, because
they think volume is Length PLUS Width PLUS Height.>>>

    You're right, , ,it is a good "Rule of Thumb"!!   It also describes
a bag that is 45 Linear inches.

<<<BUT, any silly rule usinging LINEAR inches for baggage size (.......)
is bound to be subject to special "patches" to cater to other items that
do NOT fit those specs.>>>

    Rules is Rules!! <G> I do fly on domestic and foreign carriers so
I'm generally bound by those who enforce those rules. I try not to
wander far from them! <G>

Alfred Kirkland
Dahlonega, GA.