Originally Posted by
john_tullamarine
Couple of thoughts ..
(a) one significant risk is loss of horizontal tail surface forces resulting in a nose down pitch .. might not be a good idea coming over the fence if one is slipping aggressively. ie probably a good idea to heed the OEM's warnings and/or know one's aircraft's characteristics in some detail...
I found (thanks to friend Ozzie Ozborne) an early 172 manual which cautions against this - but I'm sure it never bothered me much. There are light planes which I've slipped down to about 20' before recovery, but probably not a 172 with full flaps.
Also Ozzy found a caution against
prolonged slips/skips in the 182 when fuel selector is on "both" because of unporting and drawing air into the fuel line. This might apply to many aircraft I guess.
