Java
150
Owner`s Manual
VB. Maintenance
Due to the design of the Java VB., its operation should be smooth and much easier
than other hang gliders.
To keep it this way, make sure that the ropes not twisted and clean. Remove grit or
dirt from the upright casting and replace the ropes if they show signs of wear. It is
also important to keep the tension strop of the glider untwisted.
VB. Set-up
The VB. on your glider should be factory set. However the ropes do stretch a little
and you may need to adjust or change a rope in time.
Please refer to the appendix for diagrams of the VB.
The white retaining cord (2) limits the travel of the rear triple pulley block (3). If this
is too long the block will come out of the keel pocket with the VB. in the released
position. When pulling the tension on this block might then get caught on re-entry to
the sail and limit use of the VB.
The cross tube VB. rope (6) should be tight with the VB. in the fully released
position. To check this there should be a little bit of slack in the tension strop (7)
(static side) with the VB. in the released position. To alter this re-tie the knot
attaching this rope to the triple pulley block (3).
ALWAYS USE A BOWLINE
KNOT
.
When VB. tension is pulled on the tension strop (7) will become progressively more
slack. The side wires on the glider will become tighter. When the two blocks (1) and
(3) meet the VB. is full on and the side rigging should be just tight.
NEVER ALTER YOUR VB. IN SUCH A WAY AS TO INCREASE THE
MAXIMUM TENSION OR REDUCE THE MINIMUM TENSION.
TUNING INSTRUCTIONS
Trim speed - The trim speed is adjustable by moving the base of the king post and
thus hang point. Forward movement will speed the glider up, whilst rearward
movement will slow it down. See section on changing hang position (page 19).
A turn in the Java is unusual. If your glider previously flew straight then the most
likely explanation is that you have bent a leading edge. If a turn is detected first
check the battens. Check them against each other (making sure that they are the same
on both sides) and then against the profile. Next check that the batten elastic tension
is the same on both sides of the glider. If there is still a turn check that the leading
edges are straight and undamaged.
A slight turn may be tuned out using the tip adjusters:
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