TT21 operation with no ICAO address

On 12/9/2010 8:18 AM, Westbender wrote:
On Dec 9, 8:50 am, wrote:
On Dec 9, 7:02 am, wrote:

It seems
to indicate either paranoia or illegal activity. Is there some other
reason to be concerned about that?

Aren't those two reasons sufficient? No others that I know of.

Andy

Is this a common concern among sailplane pilots? I'm just trying to
understand the thought process behind someone wanting to fly
"anonomously" with a Mode S transponder. I don't think sailplanes
would be much good for smuggling or terrorism. The only reasonable
intent I can think of is that people don't want to be identified when
wandering into airspace they shouldn't be in. What am I missing?

If you wander into airspace you shouldn't be in, broadcasting your
position with Mode C, would you be left alone? In R or P airspace, I'm
pretty sure someone comes looking for you, but how about A, B, C, and D?

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email me)
- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm
http://tinyurl.com/yb3xywl
- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what
you need to know tinyurl.com/yfs7tnz