Java Comp 150
Owner’s Manual
The best place to check the profile of your battens is at home on a flat surface. (It is very difficult to do on
the hill with no flat surfaces and the wind blowing the paper profile away.)
The printed profile should be rolled out flat and a book placed at either end to hold it down.
The battens can then be compared to the profile:
Place green (right) number 1 batten against number 1 profile. Place the front end of the batten against the
profile and check that it matches the profile along its whole length.
If it does not match the profile see where it deviates and adjust the batten accordingly in that area. (See
below.) Continue this process until the batten matches the profile. Then do the same for red number 1
batten. Check that both number 1 battens are exactly the same shape. It is more important that the battens
are symmetrical than that they are a perfect copy of the profile. Asymmetrical battens could cause a turn in
your glider.
Then move onto batten number 2 and so on until you have checked all the battens. Do not forget to check
the compression strut and that the under surface battens are straight.
Nose batten
The nose batten profile should not be under-cambered but can be a little over-cambered. This is because
the cut of the sail will tend to flatten the batten if it is over-cambered. The objective with the nose batten is
to get the sail to fit tightly around the nose area.
Batten Profile
The batten profile is printed with the profile or shape that the battens should match. The profile is printed
with a photocopier so there may be a slight error in the length of the battens. (1-2%) Thus battens with
shape at each end should be aligned with the nearest end when checking the shape.
Move the batten to the profile as shown above
How to alter the shape of the batten
The objective is to get a smoothly curved batten but it is not quite as easy as it looks. It is very difficult to
bend the batten very close to its front end. Do not attempt to alter the profile over the first 3-5cm of the
batten. If your battens need profiling do the 6082 battens first as they are much softer.
To increase the curve in the batten hold the batten either side of where you want to increase the curve and
run the batten over your knee or leg exerting a gentle pressure. (It helps if you are wearing something
slippery.) Compare with the profile and repeat if necessary. Try to avoid point bends and make sure that
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Summary of Contents for JAVA COMP 150 Dacron
Page 27: ...Java Comp 150 Owner s Manual Appendix ASSEMBLY DRAWINGS NOSE ASSEMBLY 27...
Page 28: ...Java Comp 150 Owner s Manual 28...
Page 29: ...Java Comp 150 Owner s Manual CROSS TUBE LEADING EDGE JUNCTION 29...
Page 30: ...Java Comp 150 Owner s Manual 30...
Page 32: ...Java Comp 150 Owner s Manual VARIABLE BILLOW VB OR VARIABLE GEOMETRY VG 32...
Page 33: ...Java Comp 150 Owner s Manual Appendix CHECKING WASHOUT GLIDER MINIMUM REQUIREMENTS 33...