BOAC,
the charts we had so far
http://www.pprune.org/rumours-news/4...ml#post5765521
The new ones
Foto - portal TVN24.pl
or
http://slimak.onet.pl/_m/TVN/tvn24/smolensk_.pdf
The eastern runway threshold coordinates are exactly the same on both charts.
I gather the 'NDB' used is truck mounted so could easily be in a different position
AFAIK it's not a truck mounted system but a fixed one.
What is ARRAKIS talking about please, and please remember it would not matter on a non-precision approach
Agree 100% on that, but can someone tell exactly what kind of approach they were flying?
Now a part of the interviw with the Yak-40 crew member, that landed at XUBS some 90 minutes before the crash.
Przedruki karty otrzymaliśmy z ambasady. Byliśmy przygotowani, mieliśmy współrzędne środka lotniska, które dodatkowo można było wprowadzić do GPS-a. Stąd dysponowaliśmy dosyć dokładną odległością. Ale GPS wyprowadzał nas w lewo, a radiolatarnie w prawo. No więc lecieliśmy wypadkową. Gdy zobaczyliśmy światła APM-ów, tak jak mówiłem, trzeba było „dogiąć” w prawo.
We did get copies of the charts from the embassy. We were prepared, we had the coordinates of the center of the airfield (the word he uses, but I think he meant the center of the runway). So we had a quite precise distance. But the GPS was bringing us to the left and NDBs to the right. 'So, we were flying the average/resultant. When we saw the APM spotlights (from the transcript we know they were 200 m from the threshold) we had to "go" right.
smolensk-progi.jpg | arrakis | Fotki, Zdj?cia, Obrazki Fotosik.pl
Smolensk runway and both thresholds coordinates from the charts. The "virtual" runway center is located slightly to the right of the real runway, not to the left.
Now what kind of approach was flying the Yak's crew? An "average" beteween NDB and GPS
Have the 101 crew done the same, relying to much on their FMS system (UNS-1D) instead to stick to the NDBs and their DH?
Arrakis