At 23:52 02 February 2015, HGXC wrote:
On Monday, February 2, 2015 at 3:00:05 PM UTC-5, Don Johnstone wrote:
At 15:26 01 February 2015, wrote:
Hi folks, I'm in the process of installing new connecting rods in my
Ventus=3D
B would like to know what everyone is using if any for the slide lube
wher=3D
e those connecting rods like to ride. The material that the slide is
mad=
e
o=3D
ut of seems to be impervious to wear so that's good but the rods are
wearin=3D
g is there any thing you have found that will not collect dust and
still
gi=3D
ve good wear resistance?

CH
=20
If Schempp Hirth thought that the rods needed a lubricate I am sure
they
would have mentioned it in the service manual or instructions for
replaci=
ng
the rods. I do not believe that they forgot and it is perfectly clear
tha=
t
they intended that the rods should be as they originally assembled
them,
lubricant free. Does that give you a clue at all on what should be
used?

I own a Ventus and I have mine lubed at the annual, I have the openings
in
=
the wing like Dick Johnson suggested. If Schempp Hirth didn't want this
to
=
be lubed then they would have used a different bushing when they made the
g=
lider. All gliders have short comings. The glider has been flown over 30
ye=
ars and like all popular gliders over time, pilots find ways of
addressing
=
imperfections and every glider has some.

Dennis

Why is it that some glider pilots feel they know better that the qualified
engineers and designers who design and build the machines they fly. Maybe
using an unapproved lubricant on material that you do not know the
composition of, which might be damaged is unwise but drilling a hole in the
structure to do it, that is stupidity of the highest order, such is life I
suppose. I doubt that the "opening" made was properly sealed to unsure that
moisture could not damage the GRP structure which is hygroscopic, my
advice. Do NOT purchase a glider owned by these people.
It is true pilots have a long history of finding incorrect ways of
addressing imperfections, proves the old maxim I suppose, if flying was
difficult engineers would do it.