Niviuk Hook 5 - 2.5.2 Changing the Riser Cords; 2.6 Inspection and Wing Inflation on the Ground; 2.7 Adjusting the Brakes

8
2.5.2 CHANGING THE RISER CORDS.
In spite of the speed system having pulleys with bearings to reduce
friction to a minimum, the frequency with which the speed-bar is used
causes the cord to wear and you may need to replace them.
In all Niviuk gliders the speed system cords on the risers are completely
removable and easily replaceable. You can use the Brummel hooks, not
use them, remove them, use another type of connector, etc. It is even
possible to x the speed-bar cords directly to the speed system on
the risers. This last option makes the connection / disconnection more
laborious, but means the cord has maximum travel without obstructions
or restrictions which is very useful for some models of harnesses.
2.6 INSPECTION AND WING INFLATION ON THE GROUND
After your gear has been thoroughly checked and the weather conditions
deemed favourable for ying, inate your HOOK 5 as many times as
necessary to familiarise yourself with its behaviour. Inating the HOOK 5
is easy and should not require a great deal of physical effort. Inate the
wing with a little pressure from the body using the harness. This may be
assisted by using the A-lines. Do not pull on them; just accompany the
natural rising movement of the wing. Once the wing is inated to the
overhead position, appropriate control with the brakes will be sufcient to
hold it there.
2.7 ADJUSTING THE BRAKES
The length of the main brake lines are adjusted at the factory and conform
to the length stipulated during certication. However, they can be
changed to suit your ying style. It is advisable to y with the original
setting for a period of time to get used to the actual behaviour of the
HOOK 5. In case it is necessary to modify the brake length, loosen the
knot, slide the line through the brake handle to the desired point and
re-tighten the knot rmly. Only qualied personnel should carry out this
adjustment. You must ensure that the modication does not affect the
trailing edge and slow the glider down without pilot input. Both brake lines
should be symmetrical and the same length. We recommend using a clove
hitch or bowline knot.
When changing the brake length, it is necessary to check that they do
not engage when the speed-bar is used. When we accelerate, the glider
rotates over the C-riser and the trailing edge elevates. It is important
to check that the brake is adjusted to take into consideration this extra
distance during acceleration. With this prole deformation there is a risk of
generating turbulence and causing a frontal or asymmetric collapse.