Originally Posted by
Rozy1
That is not my diagram. Prove your point with documentation.
I am not arguing that in both you don’t cross control the same way. They do serve two different purposes and are semantically different, otherwise there wouldn’t be two different names. If you can’t understand this I don’t know what to say.
Deliberately deceptive? Seriously?
Maybe the FAA’s diagram is better:
No, it isn't. It is just as hilariously deliberately deceptive as your previous diagram. In order to induce an artificial difference between the two supposedly different slips the FAA diagram omits the crosswind in the second picture and therefore has the aircraft flying an entirely different heading before slipping.
The FAA's fig 9-13
must have a crosswind from the left. That is the only way that the aircraft can be flying into the relative wind, ie direction of flight through the air, and still be tracking down the runway. In co-ordinated flight the aircraft heading would be directly into the relative wind, the pilot then feeds in some right rudder and left wing down and the heading is now aligned with the track over the ground. Fig 9-14 deliberately omits any crosswind, in order to track down the runway the aircraft is flying down the runway. If the crosswind implicit in fig 9-13 was added to fig 9-14 then to track down the runway the aircraft would have to fly slightly into wind to compensate for the crosswind, in other words the airflow/relative wind would come from the left of the runway, as in fig 9-13. When the pilot adds some right rudder and left wing down to 'forward' slip fig 9-14 would look identical to fig 9-13.
To put it bluntly, the difference between the two images in the FAA handbook is not that the aircraft is flying two distinct, different manoeuvres but that one image includes the effect of a crosswind, the other image does not. That's it. They are only semantically different because someone chooses to make them so, it reminds me of the asinine distinction between gliders and sailplanes that some US glider pilots like to make. If you want to carry on making the distinction, help yourself, but don't come on to an international forum and start lecturing people "that's not a sideslip, that's a forward slip" and expect not to be laughed at.