Cub Driver wrote:

The usual method for comparing the safety of automobiles is *drivers*
killed per million miles driven.

Which may be one reason it took years for passenger airbags to become common.

Strikes me this would also be the only fair way to compare a
motorcycle and a lightplane.

I disagree. A fatal accident is a fatal accident, even if the fatality is a
passenger. Personally, I would be more interested in the number of fatal accidents
per 1,000 hours, or similar stats. The general public would probably be most
interested in the number of fatalities (both passenger and crew) per 1,000 hours, or
perhaps the number of trips per fatality.

George Patterson
None of us is as dumb as all of us.