New trainer from SZD Bielsko

"Andreas Maurer" wrote in message
...
On 22 Jun 2007 13:28:04 GMT, Al Eddie
wrote:

non-recoverable spin

Define.

And before you do, read the accident reports...!

In Germany there were at least wo spin-related accidents during winch
launches, in both cases instructors on board. Iirc no survivors.



Bye
Andreas

Unfortunately, instructors differ quite a bit in their spin knowledge. I
recall spin training instruction for my CFI. (Actually I already knew about
spins from gliders.) I announced to my right seat instructor that we would
do three turns and recover within 10 degrees of the entry heading. (That's
the WWII Instructor Pilot standard.)

I picked a road intersection that would give a good ground reference and
spun the C-150 to the right starting on a north heading. (I already knew
this particular C-150 would continue 3/4 turn after anti-spin controls were
applied.) As we passed north on the first turn, I heard my instructor
mumbling to himself - he was counting what he thought were turns reaching
'three' as we pass north for the first time. As north came up again he
reached 'six' - his voice increasing in pitch. I applied anti-spin controls
on an east heading and the C-150 stopped auto-rotation on a north heading
precisely three turns after entry as my instructor spoke 'nine'. I had a
hard time convincing him we did only three turns.

Spins are a good example of perception vs reality problems. People read and
hear hangar talk about spins and develop "spin phobia". This fear degrades
their performance. Apparently, instructors are no exception.

I rode with one very senior ATP who had been taking aerobatic instruction in
a Citabria. We intended two turns in a L-23 but as we went around for the
third time, I had to point out that the Blanik requires forward stick to
achieve a recovery. This pilot expected the glider to recover with only
opposite rudder.

So, don't assume that a glider has bad spin behavior just because they've
been spun in by instructors.

Bill Daniels

On Fri, 22 Jun 2007 09:05:05 -0600, "Bill Daniels"
bildan@comcast-dot-net wrote:

So, don't assume that a glider has bad spin behavior just because they've
been spun in by instructors.

Given the fact that other gliders did not spin in during a winch
launch with an instructor in board, odds are that these accidents were
not completely the pilot's fault, don't you agree?



Bye
Andreas

On 22 Jun, 16:43, Andreas Maurer wrote:
On Fri, 22 Jun 2007 09:05:05 -0600, "Bill Daniels"

bildan@comcast-dot-net wrote:
So, don't assume that a glider has bad spin behavior just because they've
been spun in by instructors.

Given the fact that other gliders did not spin in during a winch
launch with an instructor in board, odds are that these accidents were
not completely the pilot's fault, don't you agree?

The Puchacz is not, alas, the only glider to have spun in off a winch
launch.

Mind you, I recall a site check at a Large UK Club in a winch launched
Puchacz. At the top of the launch the instructor kept telling me to
pull back more, even when pre-stall buffet could be felt. And that was
only two weeks after an AEI flight had spun in off the winch, fatally
for the pupil.

My conclusion: some instructors shouldn't be flying, and some clubs
shouldn't be operating.

Ian