Originally Posted by
skirtinstorms
As far as I remember (which is not much) not doing forward slips with flaps extended in a Cessna is a recommendation, not a prohibition. I think the wording in the POH was something like, "Forward slips with flaps fully extended not recommended."
You are correct. I had this same converastion with my instructor today during my pre-solo brief. Here is what I came up with. The direct verbage from page 4-48 of the 172S PIM is "
Steep slips with flap settings greater than 20* can cause a slight tendency for the elevator to oscillate under certain combinations of airspeed, sideslip angle and center of gravity loadings." Here is another quote from page 4-49 of the same PIM, "
If flap settings of greater than 20* are used in sideslips with full ruddder deflection some elevator oscillation may be felt at normal approach speeds. However, this does not affect control of the airplane." I beleive it is that last sentance that makes it a recommentation not to perform them as to a prohibation.
Brian