Stupid transponder question, or, stumped by the wife

In military formation flying, only 1 plane has a transponder turned on.

"John Kirksey" wrote in message
news:_0YVe.24770$8h6.7135@trnddc09...
So we were watching "Seconds From Disaster" on NGC last night, which
happened to be on AA 77. When they mentioned that seconds after
gaining
control of the aircraft the hijackers turned off the transponder
(along with
a brief explanation of what the transponder does), my wife simply
says:

"That's stupid, why does something like that even have an on/off
switch?"

I honestly never thought about it and couldn't answer her question.
Does
anyone know?

Regards,

John K.

sfb wrote:

In military formation flying, only 1 plane has a transponder turned on.

Isn't this true with GA formation flying as well?

--
Peter
























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"Peter R." wrote in message
...

Isn't this true with GA formation flying as well?


Yes.

"Peter R." wrote in message
...
sfb wrote:

In military formation flying, only 1 plane has a transponder turned on.

Isn't this true with GA formation flying as well?

Yes, and ATC will let you know if more that one in the formation has their
transponder on.

--
Peter
























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