H201 Libelle and wing dropping

Your friends are correct, you should open the airbrakes. You only need
them until you have passed the point where the tow plane started its
takeoff roll.

You have probably noted that you are consistently dropping the same
wing. It is a result of turbulence from the tow plane. Mark where the
tow plane began its takeoff roll and anticipate the turbulence as you
approach this point. Also, get the tail off the ground as soon as
possible to lower your angle of attack and enliven your ailerons.

Be sure to add a checklist item to your take off... to visually check
that the spoilers are not deployed after you break ground. You may
also want to keep a finger or two on the aft side of the spoiler
handle until you've gotten used to closing the spoilers and locking
them with each take off.

Hope this helps.

Chris OC

Not a bad idea to check that your ship is tracking
straight, I test flew a 20 that would head for the
corn field on every flight. Walking it back from my
second aborted takeoff, I noticed it wouldn't keep
going where I pointed it. Did some checking and found
the factory installed tail wheel was a good 10 degrees
off center line. Tail skids are often reinstalled incorrectly,
also.
JJ


At 22:48 15 October 2004, Bob Salvo wrote:
I wonder if you have the same problem I had with my
H301 35 years ago. Its
main wheel was not directly under the center line,
so when the wing runner
leveled the wing and then let go of it, one wing would
immediatley drop to
the ground. When this first happened, I thought one
wing was heavier than
the other; but this was not the case. A closer examination
revealed an
offset main wheel. The quick solution to this problem
was to tell the wing
runner to find the balance point instead of holding
the wings level. If
your main wheel is directly under the centerline, and
the wings don't
balance when held level, one wing is heavier than the
other; this can
happen if a repair was done to one of the wings.

'ruediger' wrote in message
. com...
Since 3 month I am proud owner of a H201B with 17m
wingspan and
'Speizklappen'. The glider I owned for 4 years, before
i bought the
Libelle was a Astir CS77. I like the handling of the
Libelle very
much, the only point I really have problems with,
is that the Libelle
loves to drop a wing at the beginning of aero tow.
Every take off that
a friend or me made with the glider was close to a
aborted take-off.
Other Libelle Pilots said, I should try to open the
air breaks for the
first 100m, but none of them owns a 17m version, which
has extra
weight on the outer side of the wing because of the
wingtip extension.

I am not used to this wing dropping by the ASTIR so
I hope I can get
some additionell advice here.