Sectional use

On Jan 28, 8:45 am, "Jay Honeck" wrote:
And then the bad guys will head to the area of a major airport, turn
on the GPS jammer, and kill a few thousand people in an hour without
anyone even knowing they were there.
That's an interesting (if appalling) topic. I wonder why no one (to
my knowledge) has ever taken out an ILS transmitter -- or, worse,
jammed it to cause false readings -- in an effort to do the same
thing?

Didn't they do the changed-ILS crash-thing in "Die Hard 2" ? Once
our side figured it out, they had all other airplanes circle forever,
running out of fuel. This was, of course, silly, since in real life
they'd send everyone to another airport (duh).

There have been cases, even recently, of civilians using voice freqs,
pretending to be ATC. Never seems to work, though.

Someone mentioned cross-checks to prevent running into trouble if a
GPS was jammed. Yet others say they depend on it and don't pay
attention to other navigation instruments.

On a related topic, the hot news this week was the Army calling for
new comm inventions. Apparently in Iraq the US Army has upped its
constant jamming to prevent remotely-detonated IEDs, to the point that
our own units cannot communicate with each other.

Kev

BDS writes:

Same holds true for airborne GPS in my opinion. Jamming the signals - not
too effective if earth-based (GPS are line-of-sight transmissions that
cannot penetrate objects). Creating a false signal to "fool" an airborne
receiver - not practical or economically feasible.

The military has already done it. That's why we no longer have SA.

Doubtful - you don't follow an ILS signal blindly. There are cross checks
you can (and should) make along the way.

What happens after ILS is deemed old-fashioned and is replaced by GPS?

--
Transpose mxsmanic and gmail to reach me by e-mail.

On 28 Jan 2007 05:45:44 -0800, "Jay Honeck"
wrote:


That's an interesting (if appalling) topic. I wonder why no one (to
my knowledge) has ever taken out an ILS transmitter -- or, worse,
jammed it to cause false readings -- in an effort to do the same
thing?


It has been done in the movies. Die Hard #2.

Kev writes:

Apparently in Iraq the US Army has upped its
constant jamming to prevent remotely-detonated IEDs, to the point that
our own units cannot communicate with each other.

That's one reason why I prefer wires wherever practical. No Wi-Fi for
me. And I feel quite uneasy about remote-controlled aircraft,
especially aircraft carrying weapons.

--
Transpose mxsmanic and gmail to reach me by e-mail.

needed. Actually, I was quite surprise to see your statements "What's
a "sectional"?

Um, that's what's called a "tongue-in-cheek" statement, in my neck of
the woods...

;-)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

You're right, I was thinking of Miegs. I lov3ed landing there and
walking to conventions at McCormick (did I get that right?) place.

You got it right.

One of our fondest flying memories is taking the kids into Meigs
Field, not long after they re-opened the airspace after 9/11. We had
to catch a cab, cuz they weren't allowing ANYONE off the peninsula
(they even wanded my little girl) without being searched, and no
pedestrians, period.

We went to Ed Debevic's (a restaurant where the wait-staff jumps on
your table and sings, while having fun insulting you...) for lunch,
and just enjoyed the hell out of our freedom to fly.

I remember thinking, at the time, "I wonder how much longer this can
last...?"
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Jay Honeck writes:

I remember thinking, at the time, "I wonder how much longer this can
last...?"

The day may come when all general aviation is just a memory. I think
the only reason it survives is that most of the population isn't
really aware of its existence. If they knew about it, they'd want to
close it down.

--
Transpose mxsmanic and gmail to reach me by e-mail.

Mxsmanic wrote:

And then the bad guys will head to the area of a major airport, turn
on the GPS jammer, and kill a few thousand people in an hour without
anyone even knowing they were there.



Do whatever you want to a GPS signal any time, anywhere. Not one person
would die as a result.

Jay Honeck wrote:
And then the bad guys will head to the area of a major airport, turn
on the GPS jammer, and kill a few thousand people in an hour without
anyone even knowing they were there.

That's an interesting (if appalling) topic. I wonder why no one (to
my knowledge) has ever taken out an ILS transmitter -- or, worse,
jammed it to cause false readings -- in an effort to do the same
thing?

If you think about what this would do at, for example, Chicago's
O'Hare International, with planes landing at better than one per
minute, the results could be truly appalling.

Right. A plane crashes after going hopelessly off course and nobody
else does anything. We all just sit and watch and go "huh, that's odd."
Get real. Can't happen.

On Jan 28, 10:56 pm, Newps wrote:
Right. A plane crashes after going hopelessly off course and nobody
else does anything. We all just sit and watch and go "huh, that's odd."
Get real. Can't happen.

Except, of course, that's exactly what happened on 9/11 with the first
tower crash.

Kev