this struck me, too, that in one case we don't compare airplanes to cars
because they cruise at 75% power, not 12%, but then someone talks about car
radiators freezing up.  apples, people, apples to apples!  :-)
Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)
> Cars in canada do use cardboard, but not, in my experience, because the
rads
> freeze, but because the cars stay warmer.