Stan Evil Thanks for the reply. Yes, you must be right.
I dug out an old edition of
Trevor Thom - Aeroplane Technical & from the illustrations, I think that what I was recalling in the Citabria, was probably a very old model of Turn Indicator. And, of course, if that is so, then it must have a rate gyro.
Right thats it, I am going to give up on trying to under the techie stuff, I just get back to flying
Mind you, I understand fully the workings of GPS
..... NO I am not going there!
