"BTIZ"

wrote:Like I said.. I've seen a few.. had to alter course a couple of times..
but
nothing really close. At least the ones I saw.

I was about 50 miles behind a scud-running Stearman, who was inbound to Iron
Mountain at 400 AGL. He called out that a 'black shape' just passed below him.
He didn't see it coming or going. Always wanted to ask: how low do you go?
Thx,
VL