trivia: highest glide ratio

I recorded 174/1 under a long cloud street in Moriarty.

At 19:12 04 August 2006, Sam 303a wrote:
I recorded a glide ratio of 54 in a PW5 going from
Midland to Lubbock. Had
one hell of a tailwind. Don't ask what it was going
_to_ Midland, I'm sure
it was about as small a positive number as you can
have.

wrote in message
roups.com...
Here's a trivia question for you all. I've tried googling
for it, but
nothing has turned up.

What airframe (commercial or experimental) had the
highest recorded
glide ratio, and what was it?

Ratios of 50:1 are common in modern gliders, of course,
but what's the
very best anyone has managed, presumably using some
wildly experimental
airframe?

Johan Larson