On 3 May 2007 08:25:08 -0700, Jack Linthicum
wrote:

On May 3, 10:55 am, "TMOliver" wrote:
"Daryl Hunt" wrote ...


A quick and logical explanation for the death of the P-38, P-4 and P-5
was the birth of the U-2. Hardly likely that two such systems,
especially with the U-2's superior altitude performance, would co-
exist.

If you double the altitude you have to double the size of the lens[s]
to maintain the same resolution in the image. Low is more detailed.

Casady