jijack wrote:

On 17 Dec 2006 14:04:43 -0800, miso@sushi.com wrote:

See top of page:
http://www.lazygranch.com/passur.htm

excellent work Miso ..........  I especially like all the flights to
the N.W.  and particularly that flight back east in W.V.A
that had the two loops.

great stuff .........

N470JF is used by the CIA. I am not familiar with West Virginia, but
did try to determine where the loops were centered. One was near a dam
or water project of some sort, but I couldn't nail down what it was
doing.

Certain airports are known for flying loops (round robbin). BFI in
particular.
http://flightaware.com/live/flight/BOE614
http://flightaware.com/live/flight/BOE303
http://flightaware.com/live/flight/BOE444
http://flightaware.com/live/flight/BOE901/history/20061215/1913Z/KBFI/KBFI
http://flightaware.com/live/flight/BOE103/history/20061214/1928Z/KBFI/KBFI

The ER-2 at Edwards AFB does longer loops:
http://flightaware.com/live/flight/NASA806

N94AR is one of the twin otters based out of North Las Vegas that does
government work:
http://flightaware.com/live/flight/N94AR/history/20060824/1017Z/KVPS/KVPS