"David Megginson" wrote in message news:2QJRc.419


So he has a CPA, with SEL, MEL, and SES, as well as glider tow (!!!),

No rating is necessary to tow a gldier other than what is necessary to fly the
tow plane. I suspect the last item is private pilot privs in gliders, restricted
to aerotow only (which is what most people have in the US unless they go
out of their way to get a winch or ground launch).