Originally Posted by
chevvron
Were you watching a radar display? Did you see the Heathrow inbound traffic descending to 3,000ft for the 09L ILS heading towards you?
Your altimeter may have been showing you 2,300ft, but the mode C on radar might have been as high as 2,500ft and still been within tolerance. A slight bit of turbulence and with no control input on your part, your Mode C is showing 2,600ft ie inside controlled airspace.
I was watching my altimeter. It was fine. It said 2,300ft. My SkyDemon said 2,300ft. The FR24 trace of my flight shows 2,300ft. QNH 1015. It was as calm as anything up there, my level was as stable as it gets and my flight record confirms that.
I appreciate what you say, but it was a case of Farnborough being Farnborough. She didn't ask me my altitude, which I believe would have been the appropriate call if I was activating CAIT.
I do not need warnings when I have 200ft at my disposal and am not bouncing around. That's not what I took their service for.
3rd Sep, 0840Z.