[RCSE] two questions from the experts

[WE Johns]

I started thinking a bit about flying and I have two questions.

First, how far out do folks fly when at the raggedy edge of common 
sense....or beyond.  I personally have seen planes so far out you could not 
actually see the plane, simply the periodic flash of reflection off the 
leading edge reflection tape as the plane worked a very high, very far away 
thermal.  How far out is that?  500 yds?  1500 yds?  Anyone have hard 
numbers on how far out that might be?

I presume every group of fliers has one person like this, someone who like 
to get their moldie way up high and then dive down in a blistering, high 
speed pass.  The plane is moving at very high speed, air screaming as the 
plane slashes by.  How fast are planes like that going?  Anyone ever put a 
radar gun on one?  SWAGs welcome, hard numbers preferred.

Thanks,

Bill 

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