Wing tie-down kit

On Aug 6, 10:25*am, raulb wrote:
I am sorryJJ. *I mis-read the posts. *I didn't realize you were
selling these things until after I posted. *I thought I was thumbing
my nose at someone else.

I've been using JJ's tie-down kit with my ASW27 successfully. The
ASW27 does not have otherwise any acceptable method for tie down which
I know off. JJ's tie downs can go over the aileron or flaps without
damaging them since the force is mostly all forward. I use them over
the aileron/flap juncture. They are small enough to be carried easily
in most gliders. I also carry JJ's wing tip detachable wheel, another
great JJ product, for aeroretrieves from dirt strips without wing
runner. Both kits can be carried easily in my 27 compartment.
I recently landed at Minden and used the tie downs without wing
stands. The wind was calm when I landed but started blowing at dawn
and was gusting over 30 when I arrived at the airport. It even blew
the wind sock away, but the tie downs held nicely with no harm to the
wings. JJ's tie down kit passed the test :-)

Both products are available from Williams Soaring Center:
http://store.williamssoaring.com/Mer...tegory_Code=SP

Ramy

On Sep 12, 2:13*pm, Ramy wrote:
On Aug 6, 10:25*am, raulb wrote:

I am sorryJJ. *I mis-read the posts. *I didn't realize you were
selling these things until after I posted. *I thought I was thumbing
my nose at someone else.

I've been using JJ's tie-down kit with my ASW27 successfully. The
ASW27 does not have otherwise any acceptable method for tie down which
I know off. JJ's tie downs can go over the aileron or flaps without
damaging them since the force is mostly all forward.

Ramy

I thread nylon webbing around the divebrake pivot on the -27 (the
steel tube that runs between the foreward and aft walls of the box
about 1.5 inches down inside the divebrake box itself - not the tube
that sticks up and holds the panels) then back down over the leading
edge of the wing to whatever I'm tying to - no fabrication required.
The same principle applies as for JJ's rig only more so since the
webbing comes straight up out of the box, makes a 90-degree turn to
follow the top surface of the wing to the leading edge and then
straight down to the ground. The force on the divebrake pivot would be
straight up if the tiedown comes under tension, but I think most of
the force would be tranmitted to the top surface of the wing from
surface fricton leaving the residual loads on the pivot relatively
low. I also put wingstands under both wings so I am not sinching the
dihedral out of my wings.

I'm told the factory doesn't recommend tying to the divebrakes, but I
suspect they were thinking about wrapping rope around the tubes that
stick up when the brakes are deployed - pulling on those would put a
lot of torque on the pivot.

JJ's design looks good (thanks JJ!) as long as they are ensured of
pulling the trailing edge forward along the chord - on a control
surface I'd worry that it might deflect upward
under tension and hurt something.

9B