Notes:Enroute towards Morocco (Marrakech) out of Brussels, Belgium. The aircraft is a 737-400 registered TF-ELP (iceland) of Islandsflug "icebird airlines", photo taken on 29 december 2004 over Paris area towards the South.(around FL 280 I believe). Photo is showing 597 kts (max was at 598 but for just a few seconds) thanks to a strong 139 kts wind.