) wrote:

In the context it is used, and for my level of flying experience, yes they
are interchangeable. I do not know more about the danger of this than
Cessna, so I would prefer to trust what they say. You level of experience
is certainly different that mine, so your decision may be different than
mine.

Sorry, Mike, I was just having some fun with an urban legend, not trying
to come across as some "long in tooth" experienced aviator. I am afraid
I have a long way to go for that title.

As a former owner of a late model Cessna 172, I can tell you that the
"Avoid slips with full flaps" is a Cessna recommendation based the
possibility of some oscillation in the yoke, which can be disconcerting
to a pilot not expecting it. (This is a paraphrase of the POH). This
recommendation has nothing to do with the possibility of a resulting
tail-plane stall and nose-over into the ground, which is where the fear
of avoiding slips with full flaps may have originated.

Is there an older model C172 where re-directed airflow actually can
negatively affect the horizontal stabilizer? I don't definitively know
as I certainly do not know the characteristics of a lot of small
aircraft. However, I don't recall reading about a specific example in
this newsgroup the many times this topic surfaced in the past.

I have slipped with full flaps while practicing emergency descents in
the C172SP and have experienced this oscillation of the yoke; it moves
in and out about a 1/2 or so in either direction and was pretty docile.

--
Peter