AviationBanter - View Single Post

**Steve Hix** · October 16th 07, 06:19 AM posted to rec.aviation.piloting,rec.aviation.homebuilt

In article .com,
wrote:

On Oct 15, 8:49 am, Bertie the Bunyip wrote:

The examiner wouldn't allow him to slip because he reckons they are
dangerous with the flaps out and that he should wiggle the ailerons back
and forth to lose height. He didn't even want him to slip clean.

Jesus wept.

This examiner had had a fright in a 172 (this was an archer anyway) and
did not alow anyone to slip with flaps out.
While I am firmly in the camp that says some cessnas can get a litle
fuzzy in pitch with full flaps, this is just stupidity incarnate.

Shoot. We do slips with full flaps all the time in 172s, have
done so for years, and never had a scare. I wonder if that "Avoid
Slips With Flaps Extended" applied to some earlier models? I'll have
to check the TCDS sometime.

It affected at least some 172s.

Back when dinosaurs still roamed the taxiways...well, around 1971, a
couple of the instructors who worked for the FBO for which I was a very
lowly minion were wondering why the sole 172 was placarded against slips
with full flaps. (We operated mostly Pipers, various Cherokees and a
Navajo, and this one slightly elderly 172, I don't recall which year it
was.)

So they went out one morning, got plenty of cushion between themselves
and the ground, set the 172 into a landing configuration with full
flaps, and slipped it.

It shook a bit and then went inverted on them. They recovered and came
back home.

It may have only done that in some specific CG configurations, but they
were satisfied, and didn't wonder any longer.

Didn't do it again, either.