Sanding or Waxing - PIK 20 Question

I take it from your question that your PIK-20 is not climbing well.

When I first began flying this type, I was disappointed with the climb until
I discovered top rudder. If your yaw string is out on the forward canopy and
while circling is in line with the longitudinal axis, you are in a slight
skid. There is some controversy about the magnitude of the skid and this
subject is covered very well by Richard Johnson in the October 2004 issue of
Soaring Magazine.

The climb performance of my PIK-20B improves a lot when I apply top rudder.
When the climb is optimum, the yaw string is displaced about 5-10 degrees
toward the outside of the turn. This seems to be a trait of most gliders
that I have flown but my PIK-20 seemed especially sensitive in this regard.

So before you begin sanding or polishing, you might try this first...if you
haven't already.

Paul
ZZ



"culverflyer" wrote in message
...
Sanding rather than waxing a PIK 20 Question
Has anyone have info on this I was told that when this persons PIK did not
clime well he would sand the wings with 400 grit .

Hello Paul et all,

I also aggree with this. However it appears to work under certain conditions
of lower bank perhaps. At higher bank turns I found no real big difference.
The one thing is assured with the "B" model is that it climbs really well in
small lift. This came also from a more experienced pilot who tried my "74".
Again, I would be quite relinquant to modify the profile of the wing with
sanding unless definite deformation near the spar.

Cheers

Marc
"74"

"P. Corbett" a écrit dans le message de news:
.. .
I take it from your question that your PIK-20 is not climbing well.

When I first began flying this type, I was disappointed with the climb
until I discovered top rudder. If your yaw string is out on the forward
canopy and while circling is in line with the longitudinal axis, you are
in a slight skid. There is some controversy about the magnitude of the
skid and this subject is covered very well by Richard Johnson in the
October 2004 issue of Soaring Magazine.

The climb performance of my PIK-20B improves a lot when I apply top
rudder. When the climb is optimum, the yaw string is displaced about 5-10
degrees toward the outside of the turn. This seems to be a trait of most
gliders that I have flown but my PIK-20 seemed especially sensitive in
this regard.

So before you begin sanding or polishing, you might try this first...if
you haven't already.

Paul
ZZ



"culverflyer" wrote in message
...
Sanding rather than waxing a PIK 20 Question
Has anyone have info on this I was told that when this persons PIK did
not
clime well he would sand the wings with 400 grit .