Does anyone know why BA flights turn off their SBS about 50 miles from destination? I spot at Alicante airport where I can see the landing A/c about 2-3 minutes from touchdown. The daily BA flight from LGW switches off it's SBS before it clears the mountains and only by dead reckoning from arrival time can I ever see it. I have noticed that Air Nostrum (a BA subsidiary) also does the same. Of the many airlines from all over Europe and N Africa that operate to/from Alicante, these are the only "secret" aircraft. Note; Flybe do the same at Exeter.