posted on May, 4 2014 @ 05:23 PM
originally posted by: markel
This flight really go to Groom instead TTR? Look the purple colour line, anyway; what's the difference between red dashed line and purple's? All
flights that target Groom Lake, once they enter into the military restricted airspace, such tracking or monitoring is not included in
FlightAware?,ie;flight tracking lines never target to Groom Lake?. regards from spain.
I don't see a red dashed line. Note you need to look at the archived image, not the link to the current flightaware website.
To get any tracking at all, the aircraft has to file for IFR (instrument flight rules). Aircraft such as the Beech Janets often file VFR (visual
flight rules) and do not show up on the internet flight tracking websites.
Now looking at your link, there is a blue dashed line and a solid green line (not primary color green, but greenish). What flightaware attempts to do
is create a dashed line that represents the flight plan. The solid line is the actual flight, to the degree of accuracy given by the FAA feed.
In your link, you can see the plane veering to the south. That is, the plane is not following the flight plan. That is because the plane is not going
to the Tonopah Test Range. Rather it is going to Groom Lake.
Janet aircraft generally treat the TTR, which uses ICAO code TNX, and Groom Lake (which has no ICAO code) as the same location when they file flight
plans. They can't file a flight plan to a place that doesn't exist.
The airspace around the NTTR (Nevada Test and Training Range, which contains the TTR) is under Nellis control. In fact, you literally do contant
"Nellis control". So if the pilot lies on the flight plan, it isn't a big deal since somehow Nellis control is informed regarding the real
destination of the aircraft.
Occasionally there are flights between Groom Lake and the TTR. They will show up as flights between TNX and TNX, which is what they call a "round
robin". Sometimes they will call Groom Lake TKM. There is no TKM ICAO code in the United States.
More on TNX and TKM
On occasion, the FAA screws up and the flight tracking will go directly to Groom Lake.