Thanks oggers and Ghengis.
I have no argument with either of you. I am very happy to inhabit the real world and do indeed feel welcome. Sometimes it’s interesting to inhabit the theoretical world for a while and then return, blinking and confused, into reality!
I found the reference on page 7 of ‘Handling the Big Jets’ in google books.
That must be where I read it. DP Davies thought it was worth mentioning. Perhaps he had read Swatton’s book or maybe Swatton cribbed it from him? Maybe it was taught on the ETPS course which DPD attended?
I shall ponder and wonder further on Sunday when I watch my ASI reading 300kts with a TAS of 490 and a Mach of 0.85, the TAT showing 35C warmer than the SAT!
Isn’t physics interesting? And isn’t an aircraft an ideal place from which to observe some of the ideas?
Last edited by eckhard; 23rd Mar 2018 at 17:10.
Reason: Reference to ‘Handling the Big Jets’ by DP Davies