I remember on a certain British Oldie Aircraft the cabin sometimes traveled at a velocity faster than that of the entire aircraft, so two KIAS Readings were required.
Sorry, Skylark, I'm sure I'm being dense
![Bad teeth](images/smilies/badteeth.gif)
really, apologies!! But how is this possible (what have I missed!?!
![Confused](images/smilies/confused.gif)
) and more importantly, how much did the readings differ on average?
Sounds a bit fishy!! Like a ghost-plane or..... oh ok, I'll get me coat.
Andy