[OT] altimeter calibration?

[lord_verminaard at yahoo.com (Brendan Doyle)]

Asked my girl, she's ex-Air Force... She said they were probably doing an exercise.  The pilots spend a lot of time in the air not really going anywhere.  Probably practicing formation flying or something of the sort.  C-130's are pretty big though so they are probably not messing around when they are that low.

Brendan

----- Original Message ----
From: Spewey <spewey@xxxxxxxxxxx>
To: scirocco-l@xxxxxxxxxxxx
Sent: Saturday, September 15, 2007 3:25:43 PM
Subject: [OT] altimeter calibration?

Hey military/airplane people,

I've got a question for you:  once when I was out sailing on a weekday
on Lake Pepin, two Minnesota National Guard C-130s flew repeatedly up
and down the lake at about 1000 ft.  Big birds low down wing to wing.

The lake is about 23 miles long and 3 miles wide, actually a wide spot
in the Mississippi River, probably the biggest open water for a hundred
miles.  It was an awesome sight but I presume it was not done for
jollies since they kept going back and forth.

Someone said that maybe they were calibrating their altimeters by flying
over a flat surface but I wondered how that would make sense if the
river level changes.  Is that what they were doing?


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