Crab, slips, and crossed controls

On Sep 22, 9:18*am, Stefan wrote:
Robert Moore schrieb:

A slip is a slip is a slip.
From The FAA H-8083-3a, *Airplane Flying Handbook

Ok, so in the USA there exist several different brands of slips.

In the rest of the world however, a slip is a slip is a slip. Which is
how airplanes see it, too, I suppose.

More countries than the USA see it as separate ideas. In
Canada we see things as forward or side-slipping:

http://www.tc.gc.ca/civilaviation/ge...artII/Ex15.htm
http://www.tc.gc.ca/civilaviation/ge...3723/ex15..htm

The airplane doesn't care which we are doing, and it feels no
difference in airflow. The difference is in the ground track relative
to aircraft heading, which makes all the difference to the pilot,
since he wants to meet the surface at a certain place and if he uses a
sideslip when there's no wind, he'll be in the rhubarb well off to the
side of the runway, the same place he'll end up if he uses a forward
slip when he's trying to correct for crosswind.
The Air Canada pilot was a sailplane pilot, too, familiar with
slipping, and had operated sailplanes out of Gimli so he knew the
place. If anyone else had been at the controls it might not have
turned out so pretty.
I don't know why so many pilots are afraid of slipping, and why
some aren't getting the training and testing. As you can see in the
links, Canada mandates and tests for it and we use it all the time,
even in 172Ms that make no fuss at all doing it with full flaps. 172s
have too little rudder authority to make a slip really useful, though,
and once we start the students in the Citabrias they find out what a
good slip really looks like. My Jodel with its all-flying rudder (no
fin) will slip so aggressively that it scares almost anyone, and this
in a little airplane with short wings that needs no flaps in the first
place because it descends so steeply with power off.
Canada also mandates the spin demo for private students (ours
get to perform the full entry and recovery) but it's not on the PPL
flight test; Commercial flight test candidates have to enter and
recover on command from the examiner. It's another technique too few
pilots are familiar with. We don't kill people doing it, either.

Dan