"Cub Driver" wrote in message
...
Strikes me this would also be the only fair way to compare a
motorcycle and a lightplane.

It is fair if all you care about is the risk to the pilot.

It is not fair if you care about whether passengers survive. Just because a
vehicle carries more passengers, that doesn't mean it's unfair to take that
into account when comparing safety.

For example, personally, I think it's very relevant that an airline jet
might be carrying 100-300 passengers (depending on type) when it crashes.
They crash a lot less often, but when they do, they kill a lot more people
at once. That's not a fact you can just ignore, IMHO. (Of course, even
with this characteristic is taken into account, airliners are still way
safer than little planes).

Pete