For more info about this case one can try
both have extended info on this Yukon case.
From what I understand the UFO was up to 2 to 3 km in diameter
or about 1.2 miles to 2 miles in diameter which is quite a bit larger
than what is quoted here.
And the extremely large sizes quoted by viewers in the Yukon case
is not the first witnessed by observers. As far back as the mid 80's
cylinderal ufo's with the length of 5 to 7km or (up to 35,000 feet long)
have been proposed.
In one case which I am trying to re-locate, a video was
made of an extremely large cylinderal UFO of up to 5km, (25,000+ feet)
long at an estimated 150,000 feet up AND there was a radar return
recorded along with the sighting which was analyzed and using common
trig functions, an estimate of a length of 5km+ was made.
I actually remember watching the video itself and an accompanying report
in what I believe to be around 1995/96 but I can't remember right now
the actual source of the video or the written report.
But I will see if I can do some Google searches to find it....
[edit on 2009/8/2 by StargateSG7]