| Hang in
your harness with a friend nearby and move one of your hands
up to your hip and touch your harness with your arm nearly straight.
This is where you want to mount your jam cleat.
You'll
want to make sure that the angle you mount it on your harness
matches the angle of the line going up to your carabiner.
If it doesn't it will tend to torque and twist the jam cleat
when the line is under the load from your head.
Also make
sure to get a jam cleat that has the little bridge that holds
the line against the teeth of the cleat before allowing the
line to exit.
If the
cleat doesn't have this, the line will pop out of the cleat
the second it's loaded up.
This line
is also 4 mm but is softer so that the jam cleat can grab
it better than the stiffer perlon. Make sure this line is
non-stretch as well.
Below
you can read more of the details as they appeared in the Oz
Report.
"Davis:
I've
flown with a head "bungie" for about 8 years now
and can't imagine flying without it. Only it's not a bungy.
When I tried a true bungie I found that in order to get even
close to enough head support, the tension nearly strangled
me.
That's
when I came up with the idea to make an easily adjustable
in flight head support. So I mounted a black, hard plastic
jam cleat (from a sailing supplies store) on my hip oriented
lengthwise towards my caribiner, ran some small diameter perlon
through the jam cleat, up through the carabiner (or small
ring on the carabiner), then down to a baby biner at the other
end of the line.
From
my helmet I have a length of perlon of similar sized running
from one ear area to the other with a small pulley (or ring)
on it. On the pulley I have a weak link of kite string, two
actually, which then I clip to the baby biner and line that
runs from the jam cleat through my main carabiner on my harness.
I clip into this weak leak when I do my hang check.
The
system is really simple, inexpensive and provides a few things
that bungies or tensioners can't. With the jam cleat on my
hip I can adjust within half an inch of just where I want
my head to be totally supported. It's simply a matter of touching
my hip, grabbing the line coming out of the jam cleat, raising
my head a couple of inches, adjusting the line length then
resting my head again, all within just a few seconds. When
I'm on glide I can lower where my head rests, or raise the
setting if I want to fly a bit more head up if I'm thermalling
and looking at the clouds.
The
bridle and pulley (or even just a ring) on the back of my
helmet allows me to turn my head from side to side, nearly
180 degrees, and while my head is STILL fully supported. This
is particularly nice when thermalling, especially in the light
stuff, as I can set my head on it's side towards the direction
of my 360 and thermal like I have my head resting on a pillow.
This has a cascade effect as it allows me to totally relax
my neck, shoulders, back, etc. This leads to much more effective
thermalling in the light stuff as I am hanging like a true
sack of potatos in my harness.
The
weak link is a precaution in case I pound a landing, tumble
and break or for any other situation that I haven't thought
of where the line might get caught. By raising my head high
and coming down strongly, I can break the weak link. Now that
I have fine tuned the weak link strength, I can still break
it without too much trouble yet virtually never have it break
in flight. This continues to amaze me as I have had the device
under tension in some pretty radical air.
The
weak link reduces the hanging myself factor if any of the
line gets caught on something, like in a tumble, break and
deploy situation. I'm thinking of making a weak link on the
helmet line as well. I have even accidentally broken the weak
link in the air, when the link was too weak in the testing
phase, yet was able to replace it in a few minutes and have
my head support back again after only a short amount of time
of mild, unintensionally aerobatics (look ma, no hands!)
But
the best part of all is that I can be flying along with my
head fully supported, perhaps thermalling in that 0-50 up,
raise my head 3 inches and have no pulling tension on my head
at all what so ever... as if I had no head support device.
I can then look around then set my head back down for full
support again. The best of both worlds. Having a constant
pull on my head, like when I had a true bungie, drove me crazy.
The
downside for those of you who want to reduce drag to a minimum
is that you do have an extra line out there in the breeze
but other than that this device has dramatically increased
my flying stamina and enjoyment. After 4 consecutive days
and some 13+ hours of flying XC in the Owens, I was able to
fly 115 miles in 6 hours on the 5th day in large part because
I was able to rest my poor, weary head and shoulders on my
$2.50 of line and weak link.
Thought
this would be useful information to a lot of those weekend
warriors out there who suffer from neck and shoulder fatigue
while flying."
-
Andy Long
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