Niviuk HOOK 4 P Series User manual

USER
MANUAL
HOOK 4 P

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NIVIUK GLIDERS & AIR GAMES SL C/ DEL TER 6, NAVE D 17165 LA CELLERA DE TER - GIRONA - SPAIN
TEL. [phone] FAX [phone]
[email protected] www.niviuk.com
HOOK 4 P
Adventurous progress
WELCOME
We want to welcome you to our team and thank you for your condence in
our glider product line.
We would like to share the Niviuk R&D team’s commitment, passion
and emotions, which resulted in the creation of the new HOOK 4 P. Our
company is proud of this new carefully designed glider, bringing maximum
pleasure during a pilot’s progression.
Versatile and multifunctional, in a lightweight version. Designed for those
with an adventurous nature, who want to decide when, how and where
they want to progress. You are free to choose your starting point and
progression route.
We are condent that you will enjoy ying this wing and will soon
understand the meaning of our motto: ‘The importance of small details’.
This is the user manual. We recommend you read it before your rst ight
with the wing.
The NIVIUK Team.
USER MANUAL
NIVIUK GLIDERS HOOK 4 P
This manual includes all the necessary information pertaining to the
HOOK 4 P’s characteristics, but it cannot be viewed as an instructional
handbook and does not offer the instruction required to pilot this type of
wing. Training can only be obtained at a certied paragliding school.
Please review and read the comprehensive content of the HOOK 4 P
manual.
Misuse of this equipment could lead to severe injuries or death.

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SUMMARY
WELCOME 2
USER MANUAL 2
1. CHARACTERISTICS 4
1.1 WHO IS IT DESIGNED FOR? 4
1.2 CERTIFICATION 4
1.3 IN-FLIGHT BEHAVIOUR 4
1.4 ASSEMBLY, MATERIALS 4
1.5 ELEMENTS, COMPONENTS 6
2. UNPACKING AND ASSEMBLY 6
2.1 CHOOSING THE RIGHT LOCATION 6
2.2 PROCEDURE 6
2.3 HARNESS ASSEMBLY 6
2.4 TYPE OF HARNESS 7
2.5 SPEED SYSTEM ASSEMBLY 7
2.6 INSPECTION AND WING
INFLATION ON THE GROUND 9
2.7 ADJUSTING THE BRAKE LINES
AND TOGGLES 9
3. THE FIRST FLIGHT 9
3.1 CHOOSE THE RIGHT PLACE 9
3.2 PREPARATION 9
3.3 FLIGHT PLAN 9
3.4 PRE-FLIGHT CHECK LIST 9
3.5 WING INFLATION, CONTROL
AND TAKE-OFF 9
3.6 LANDING 10
3.7 FOLDING INSTRUCTIONS 10
4. IN FLIGHT 10
4.1 FLYING IN TURBULENCE 10
4.2 POSSIBLE CONFIGURATIONS 10
4.3 USING THE ACCELERATOR 12
4.4 FLYING WITHOUT BRAKE LINES 12
4.5 LINE KNOT(S) IN FLIGHT 12
5. LOSING ALTITUDE 12
5.1 EARS 12
5.2 B-LINE STALL 13
5.3 SPIRAL DIVE 13
6. SPECIAL CONSIDERATIONS 13
6.1 TOWING 13
6.2 ACROBATIC FLIGHT 14
7. FOLDING INSTRUCTIONS 14
8. CARE AND MAINTENANCE 14
8.1 MAINTENANCE 14
8.2 STORAGE 14
8.3 CHECKS AND INSPECTIONS 14
8.4 REPAIRS 15
9. SAFETY AND RESPONSIBILITY 15
10. GUARANTEE 15
11. TECHNICAL DATA 16
11.1 TECHNICAL DATA 16
11.2 MATERIALS DESCRIPTION 17
11.3 RISERS LAYOUT 18
11.4 LINE PLAN 19
1.5 LENGTHS HOOK 4 P 21 20
11.6 LENGTHS HOOK 4 P 23 20
11.7 LENGTHS HOOK 4 P 25 21
11.8 LENGTHS HOOK 4 P 27 21
11.9 CERTIFICATION SPECIMEN TEST 22

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1. CHARACTERISTICS
1.1 WHO IS IT DESIGNED FOR?
The HOOK 4 P is the lightweight version of our progression wing,
the Hook 4. With up to 1.4 kg less weight, this new model is ideal for
explorers who after making their debut in the world of paragliding decide
to continue progressing with each ight, as well as for more experienced
adventurers who prefer an intermediate, very safe wing.
With the new HOOK 4 P you too can discover and enjoy hike & y or
vol-biv adventures. A wing with an extremely reduced weight and volume
so that from now on you can choose when, where and how to advance.
1.2 CERTIFICATION
The HOOK 4 P’s load test, conducted by the Air-Turquoise testing centre
in Switzerland, exceeded 8 G of force.
1.3 IN-FLIGHT BEHAIVOR
Niviuk developed the HOOK 4 P by adopting very specic guidelines: the
objective was to seek utmost performance while minimising gear weight
and volume for easy transportation, simple and relaxed ying, and above
all, maintain a very high level of wing safety.
With progressive, predictable and efcient handling the HOOK 4 P
effectively reads the air mass, seeking out and coring thermals with
efciency and ease. The HOOK 4 P remains agile, light and predictable in
all conditions of ight and behaves impeccably during turbulence.
The HOOK 4 P was designed with the latest innovations in materials
and technologies, and that aspect provides the glider with a better
performance in all phases of ight.
If you already are a Niviuk pilot, the HOOK 4 P will surprise you. If this is
the rst time you pilot a Niviuk glider, just enjoy it!
1.4 ASSEMBLY, MATERIALS
The HOOK 4 P has all the technological innovations used on other Niviuk
gliders. Furthermore, it is full of small details like the SLE, RAM, DRS,
TNT, IKS and 3 line prole which are destined to enhance the pilot’s
comfort and to improve the performance of the wing.
SLE.- The use of the SLE (Structured Leading Edge) allows reinforcement
of the leading edge, preventing any deformation in turbulence. The
airow is also vastly improved over the entire leading edge of the glider.
RAM.- The RAM Air Intake technology presents an internal positioning
of the air intakes to provide optimal and constant internal pressure while
improving laminar air ow on the undersurface. As a result, a signicant
turbulent air buffering takes place at the leading edge for better
consistency across the speed range, and hence increasing performance
with maximum safety.
DRS.-The trailing edge has been reinforced with small ribs that make this
part atter in order to spread the pressure out evenly. It means better
air-ow and less drag on this important part of the glider. The addition
of these ribs gives exceptional handling (better and more efcient when
turning) and more control and precision.
TNT.- A revolutionary technique using Nitinol, developed to build the
internal structure of the glider, brings a more uniform prole, and hence
reduces the overall wing weight to gain efciency in ight. The Nitinol
provides the highest level of protection against deformation, heat or
breaks. Using this technological advance, the glider is able to maintain its
original features for a longer period of time.
3LT.- Its powerful prole, a detailed internal architectural structure, and

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the use of high-tech strength materials make it possible to obtain a
signicant reduction of the combined line lengths, hence reducing the
amount of parasitic drag and the weight of the glider for better efciency.
IKS.- The IKS (Interlock System) is an ultra-lightweight, high strength
connecting system that aims to complement the light product range
and replace the current systems based on the use of the maillons and/
or carabiners. This new system is based on a secure connection using a
simple Dyneema loop provided with a xing and locking system, ensuring
the complete efciency and safety of the connection, and allowing the
equipment to be ready at all times, either with or without load.
The IKS1000 is designed and dimensioned as a connection system
between the risers and the lines. It has a breaking load of 1055 kg, which
greatly exceeds that of the classic 3mm (550 kg) maillon, but with a much
less weight. This feature makes it a key element in the entire range of
P-Series (lightweight) wings, which are delivered with this technology as
standard.
Being 25 times lighter (0.2 g), this IKS model has a load bearing braking
point of 1055 kg compared to the 800 kg of the classic maillon.
Please note: the IKS1000 kg system was not designed nor certied
to connect the risers to the harness and/or a rescue parachute to the
harness. For that specic function, Niviuk developed the IKS3000. For
more information visit niviuk.com
1. Locate the elastic sleeve’s inner small diameter tube.
2. Push the IKS line through it.
3. Push now the IKS line through the lines and the riser. The reinforced
end with the black tab should be located on the side of the riser.
4. Push the upper looped end downward through the elastic sleeve (not
the small diameter tube) and then through the reinforced loop end where
the black tab is located.
5. Continue with the procedure in a counter-clockwise motion by pushing
the looped end through the riser.
6. Push the looped end rst upward through the elastic sleeve (not the
small diameter tube) and through the lines again following the same
pattern.
7. Push the looped end downward through the elastic sleeve (not the
small diameter tube) rst, and then through the loop with the reinforced
end (black tab) once more.
8. Push the reinforced end loop (black tab) through the looped end to
secure them together.
9. Pull tight to secure the knot and connection.

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10. Check the entire assembly
The HOOK 4 P’s line set is made from Edelrid Aramid. The Aramid
lines are not sheathed, thus directly exposed to potential abrasions.
Consequently and in accordance with the EN certication recommended
guidelines, lines must be inspected by a professional certied servicing
centre every hundred ( 100 ) hours. These high performance materials
require particular attention before each ight.
The fabric used to manufacture the glider is light, resistant and durable
and will not experience colour loss.
From Olivier Nef’s computer to fabric cutting, the operation is a zero
6 tolerance process. An automated computer laser-cutting robotic
arm creates each of the many sections needed to complete the wing
assembly. This program also paints the guideline markers and numbers
on each individual fabric piece.
The lines are semi-automatically cut to length and all the sewing is
completed under the supervision of our specialists. The jigsaw puzzle
assembly is made easier using this method and optimises the operation
while making the quality control more efcient.
All Niviuk gliders go through an extremely thorough and efcient nal
inspection. Every line is checked and measured once the nal assembly
is concluded. Each wing is then individually inated for the last visual
inspection.
Each glider is packaged following specic maintenance instructions as
recommended by the fabric manufacturer.
Niviuk gliders are made of premium materials. Information about the
various materials used to manufacture the wing can be reviewed on the
nal pages of this manual.
1.5 ELEMENTS, COMPONENTS
The HOOK 4 P is delivered with a small fabric repair kit, including self-
adhesive ripstop matching the wing’s colour scheme, a compression
strap to pack the wing into a small volume, a bag with straps, the
speed-bar and the new Inner Bag.
2. UNPACKING AND ASSEMBLY
2.1 CHOOSING THE RIGHT LOCATION
We recommend unpacking and assembling the wing on a training hill or
a at clear area without too much wind and free of obstacles. Meeting
these conditions will help with the necessary steps required to check and
inate the HOOK 4 P. We recommend that a qualied instructor is present
to supervise the entire procedure.
We recommend that an instructor or a Niviuk dealer supervises the
entire procedure, as only they can resolve any doubts in a safe and
professional way.
2.2 PROCEDURE
Take the paraglider out of the rucksack, open and unfold it on the ground
with the lines positioned on the undersurface facing the sky. Lay out the
wing in a crescent shape with the cells openings pointing into wind, as if
you were to inate it.
Check the condition of the fabric and the lines for abnormalities. Identify,
and if necessary disentangle the A, A’, B and C lines, the brake lines and
the corresponding risers. Make sure that there are no knots.
2.3 HARNESS ASSEMBLY
Correctly connect the risers to the harness’ carabiners. The risers and 6
lines should not have any twists and be sorted in the right order. Check

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that the harness buckles are fully locked and secured in place.
2.4 TYPE OF HARNESS
The HOOK 4 P has passed the EN B certication using an EN1651:1999
type harness.
Small = 44 cm
Medium = 45 cm
Large = 46 cm
Incorrect chest strap adjustments can affect glider/harness behaviour
and thus glider handling. Too wide a distance between the carabiners will
provide greater feedback from the wing, but less glider stability. Too narrow
a distance will not bring as much feedback, in addition to increasing the
risk of experiencing a riser twist during a collapse.
We recommend referring to the harness’ instruction manual and the
certication test report outlining the chest strap length adjustments used
during these tests.
2.5 SPEED-BAR
The speed-bar is a means of temporary acceleration by changing the
ow over the prole.
The speed system comes pre-installed on the risers and is not
modiable as it conforms to the measurements and limits stipulated in its
certication.
The HOOK 4 P includes a speed system with a maximum travel of 13 cm.
The speed system is engaged when the pilot pushes the speed-bar - not
included as standard with this glider model - with their feet. The pilot
must install and adjust the speed-bar and connect it to the risers (See
2.5.1: “Speed system assembly”).
The speed system uses an action/reaction system: released, the speed-
bar is set to neutral. When the bar is pushed using the feet, the wing
accelerates. The speed can be regulated by varying the pressure on the
bar. Once the pressure on the bar is released, the speed system returns
to the neutral setting.
The speed system is efcient, sensitive and precise. The pilot can use the
system whenever they want during the ight. In the neutral position, the
wing is ying at standard speed and glide. With full speed-bar, the glider
will y at maximum speed but the glide will be worse.
• Released speed-bar: the A, B, C, D risers are aligned.
• Full speed-bar: The difference between the A - C risers is 13 cm.
PLEASE NOTE!
The use of the speed system results in changes to the speed but also the
reactions of the wing. For more information, see the certication report.
2.5.1 Speed system assembly.
The speed-bar consists of the bar that the pilot pushes with their feet, as
well as the two cords that connect it to the speed system components
on the risers. Once the pilot has chosen the type of speed-bar they
prefer, they must install it. Some considerations:
• The pilot should use the type of speed-bar that they consider
appropriate, depending on the type of harness, preferences, etc.
• This accessory is removable to facilitate its connection and / or
disconnection to the risers as well as subsequent adjustment.
• It is important to follow the manufacturer’s instructions during the
speed-bar installation. The majority of harnesses have a speed system
pre-installed.
• The standard connection of the speed-bar to the speed system is via
Brummel hooks, where two slots in the hooks are interlocked, making

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their connection / disconnection easy. However, any safe connection
system can be used.
Graphic 1. Speed-bar connection using Brummel hooks.
Plume (P) models - please note
The P models were designed with the idea of saving weight across the
entire equipment. To achieve this, Niviuk decided to deliver the wings
without the classic Brummel hooks and opting for a kite-style knotting
system. This system offers the same efciency and safety as the classic
Brummel hooks, but with much less weight.
Graphic 2. Speed-bar connection using a kite-style knotting system
(without Brummel hooks).
1. We make a knot in the speed-bar cord and we pass this through the
cord connections on the risers.
2. Apply tension to both sides until the knots are located tightly in the
riser connections.
The system or procedure for connecting the kite knot is exactly the same
as the Brummel hooks and can be used in other systems or connection
elements.
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 pilots may need to replace them.
In all Niviuk gliders the speed system cords on the risers are completely
removable and replaceable. The pilot can use the Brummel hooks, not
use them, remove them, use another type of hook, 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.

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2.6 INSPECTION AND WING INFLATION ON THE GROUND
Once all the gear is checked and deemed safe to use, inate the
HOOK 4 P and ground handle it as much as possible to become familiar
with the wing’s behaviour. The HOOK 4 P inates easily and smoothly. An
excess of energy is not necessary and the wing will inate with minimum
pressure on the harness when you move forward. 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 the 12 o’clock position,
simply apply the correct pressure on the brake lines and the HOOK 4 P
will sit over your head.
2.7 ADJUSTING THE BRAKE LINES AND TOGGLES
The lower brake line length is pre-adjusted at the factory and identical
to the ones used during the glider certication procedure. However, that
length can be modied to the pilot’s personal preference. We nevertheless
recommend keeping the default factory settings as is, and adapt yourself
to the HOOK 4 P’s behaviour instead.
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. We must check that
the brake is adjusted to take into consideration this extra length during
acceleration.
3. THE FIRST FLIGHT
3.1 CHOOSE THE RIGHT PLACE
The rst ights with the HOOK 4 P should be made in low wind speeds,
on a training hill or obstacle free area. We recommend that a qualied
instructor is present and supervising the entire procedure.
3.2 PREPARATION
Repeat the procedures detailed in chapter 2 UNPACKING AND
ASSEMBLY to prepare your equipment.
3.3 FLIGHT PLAN
Planning a ight before taking off to avoid possible problems later is
always a good idea.
3.4 PRE-FLIGHT CHECK LIST
Once ready, but before taking off, conduct another equipment inspection.
Conduct a thorough visual check of your gear with the wing fully open, the
lines untangled and properly laid out on the ground to ensure that all is in
working order. Be certain the weather conditions are suited for your ying
skill level.
3.5 WING INFLATION, CONTROL AND TAKE-OFF
Smoothly and progressively inate the wing (see chapter 2.6
INSPECTION AND WING INFLATION ON THE GROUND). The HOOK 4 P
comes up easily, without excessive energy and does not overy the pilot.
It is a straight forward exercise leaving enough time for the pilot to decide
whether to run and take off or not.
Whenever the wind speed permits, we recommend using a reverse
launch technique more, as it is more conducive to carrying out a better
visual check of the wing. The HOOK 4 P is especially easy to control
during reversed inations in windier conditions. However, wind speeds up
to 25 to 30 km/h are considered strong and extra consideration should
be given as whether or not to y.
Setting up the wing on the ground before take-off is especially important.
Choose an appropriate location facing the wind. Position the paraglider
in a crescent conguration to facilitate ination. A clean wing layout will

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ensure a trouble free take-off.
3.6 LANDING
The HOOK 4 P lands excellently, it transforms the wing speed into lift at
the pilot’s demand, allowing an enormous margin of error. You will not
have to wrap the brake lines around your hand to get greater braking
efciency.
4. IN FLIGHT
4.1 FLYING IN TURBULENCE
The HOOK 4 P has an excellent prole design made to withstand various
weather conditions, hence enabling the pilot to take advantage of its
stability for greater piloting efciency. It behaves impeccably in passive
ight mode, thus offering a high level of safety in turbulent conditions.
Nonetheless, the pilot always has to y according to the prevailing
weather conditions, and the pilot is the ultimate safety factor.
We recommend that the pilot to anticipate every move, understands the
air mass and ies actively to make appropriate corrections with the right
input amount. Over-steering is dangerous, all actions must be undertaken
in a timely manner, amplitude and duration. The ultimate piloting goal
is to keep the speed of the glider going. AIR SPEED = SAFETY. Do not
hesitate to ask questions and get advice from qualify certied personnel
if in doubt.
4.2 POSSIBLE CONFIGURATIONS
To become familiar with manoeuvres described below, we recommend
practising within the environment of a competent training company
Asymmetric collapse
In spite of the HOOK 4 P’s prole stability, strong turbulent air may cause
the wing to collapse asymmetrically if the pilot was unable to predict
the glider’s reactions in specic circumstances. When the wing is about
to experience an asymmetric collapse, the brake lines will slacken and
transmit a tension loss affecting the harness stability. To prevent the
collapse from happening, pull the toggle corresponding to the affected
side of the wing. It will increase the incidence of the wing (angle of attack).
If the collapse does happen, the HOOK 4 P will not react violently, the
turning tendency is gradual and easily controlled. Weight-shift toward
the ying and opposite side of the collapse to keep the wing ying
straight while applying a light brake pressure to that side if necessary,
to slow it down. The collapsed side of the wing should then recover and
reopen by itself. If it does not, then pull the brake toggle on the collapsed
side decisively and quickly all the way down before bringing it back up
immediately. You may have to repeat this pumping action to provoke the
re-opening of the deated glider side. Do not over-brake or slow down
the ying side of the wing (the causes the risk of a stall for having too high
an angle of attack). Once the collapsed side is open, re-centre your body
under the wing to regain the default ying speed.
Frontal collapse
In normal ying conditions and due to the HOOK 4 P design,
asymmetrical collapses are unlikely to take place. The wing’s prole has
great buffering abilities when dealing with extreme incidence changes.
A frontal collapse may occur in strong turbulent conditions, entering
or exiting powerful thermals or when lacking experience using the
accelerator/speed-bar with untimely inadequate input. Frontal collapses
usually re-inate without the glider turning, but a symmetrically applied
quick braking action with a quick deep pump will accelerate the re-
ination if necessary. Release the brake lines immediately to return to
default glider air speed.
Negative spin
A negative spin does not conform to the HOOK 4 P’s normal ight
behaviour. Certain circumstances however, may provoke this conguration

11
(such as trying to turn when ying at very low air speed whilst applying
a lot of brake, and applying even more toggle pressure on one side). It is
not easy to give any specic recommendation about this situation other
than quickly restoring the wing’s default air speed and angle of attack by
progressively reducing the tension on the brake lines. The normal wing
reaction will be to have a lateral surge on the re-accelerated side with a
rotation not greater than 360º before returning to default air speed and a
straight ightpath trajectory.
Parachutal stall
A parachutal stall takes place when the wing remains fully inated but
loses forward motion and then descends vertically at an accelerated
rate. Instability and a lack of pressure on the brake lines set in, although
the canopy would appear to be correctly inated. To regain normal air
speed, release brake line tension symmetrically and push forward on the
A-lines or weight-shift your body to any side WITHOUT PULLING ON THE
BRAKE LINES.
Deep stall
The possibility of the HOOK 4 P falling into this conguration during
normal ight is very unlikely. It could only happen if you are ying at a very
low air speed, whilst over-steering or entering dangerous manoeuvres in
turbulent air. To provoke a deep stall, the wing has to be slowed down to
its minimum air speed by symmetrically pulling the brake lines all the way
down until the stall point is reached and held there for a few seconds. The
glider will rst pitch rearward and then reposition itself overhead, rocking
slightly, depending on how the manoeuvre was done. When entering a
stall, remain clear minded and ease off the brake lines upon reaching the
half-way point during the downward pulling motion. The wing will then
surge violently forward and could reach a point below the horizontal line. It
is most important to maintain brake pressure until the glider has returned
to its default overhead ying location.
To resume normal ight conditions, progressively and symmetrically
release the brake line tension to regain air speed. When the wing reaches
the overhead position, the brakes must be fully released. The wing will
then surge forward to regain full air speed. Do not brake excessively as
the wing needs to accelerate to pull away from the stall conguration. If
you have to control a possible symmetrical front stall (frontal collapse),
briey pull both toggles down to bring the wing back up and release
them immediately while the glider is still in transition to reposition itself
overhead.
Cravat
A cravat may happen after an asymmetrical collapse, when the end
of the wing is trapped between the lines. Depending on the nature
of the tangle, this situation could rapidly cause the wing to spin. The
corrective manoeuvres to use are the same as those applied in case of
an asymmetrical collapse: control the turn/spin by applying tension on
the opposite brake and weight shift opposite to the turn. Then locate the
stabilo line trapped between the other lines. This line has a different colour
and belongs to the external lines of the C riser.
Pull on this line until it is taught, as it should help undo the cravat. If
ineffective, y down to the nearest possible landing spot, control the
trajectory with both weight shift and the use of the brake opposite to
the tangled side. Be cautious when attempting to undo a tangle while
ying near a mountainside or other paragliders; it may not be possible
to continue on the intended ight path and a subsequent collision could
happen as result.
Over-handling
Most ying problems are caused by wrong pilot input, which then
degenerates into a cascade of unwanted and unpredicted series of
incidents. The HOOK 4 P was designed to recover by itself in most cases.
Do no not try to over-correct it!
Generally speaking, the reactions of the wing, which follow too much
input, are due to the length of time the pilot continues to over–handle the
wing. You have to allow the glider to re-establish normal ying speed after
any type of incident.

12
4.3 USING THE ACCELERATOR
The HOOK 4 P prole was designed for stable ight throughout its entire
speed range. It is useful to accelerate when ying in strong winds or in
extreme sink. When accelerating the wing, the prole becomes more
sensitive to turbulence and closer to a possible frontal collapse. If a loss
in internal wing pressure is felt, tension on the accelerator should be
reduced to a minimum and a slight pull on the brake lines is recommended
to increase the wing’s incidence angle. Remember to re-establish the air
speed after correcting the incidence.
It is NOT recommended to accelerate near obstacles or in very turbulent
conditions. If necessary, constantly adjust the movements and pressure
on the speed-bar whilst doing the same to the brake lines. This balance is
considered to be ‘active piloting’.
The HOOK 4 P risers have been designed without any adjustable,
removable or variable device to prevent and incorrect use of the speed
system.
4.4 FLYING WITHOUT BRAKE LINES
If, for any reason at all, the HOOK 4 P’s brake lines become disabled in
ight, piloting the wing with the ‘C’ risers and weight shifting will become
necessary. The C-lines can be used to steer the glider easily because
they are not under much tension, however you will need to be careful and
not handle them too heavily to cause a stall or negative turn. The wing
must be own at full speed during the landing approach, and the C-risers
will have to be pulled symmetrically all the way down shortly before
contact with the ground. This braking method is not as effective as using
the brake lines, and hence the wing will land with a higher ground speed.
4.5 LINE KNOT(S) IN FLIGHT
The best way to avoid knots and tangles is to thoroughly inspect the lines
as part of a systematic pre-ight check. If a knot is spotted during the
running phase, immediately abort the launching sequence and stop.
If inadvertently taking off with a knotted line, the glider drift will need to
be compensated by weight-shifting to the opposite side of the wing and
applying a slight brake pull to that side. Gently pull the brake line to see
if the knot can be undone or try to locate the problem line. Try pulling it
to see if the knot can be undone. Beware of trying to clear a knotted line
or untangle a line in ight. Do not pull too hard on the brake handles for
there will be an increased risk of stalling the wing or enter a negative turn.
Before trying to remove a knot, make sure there are no pilots ying
nearby, and never try these attempts close to obstacles. If the knot is
too tight and cannot be undone, carefully and safely y to the nearest
landing zone.
5. LOSING ALTITUDE
Knowledge of different descent techniques could become vital in certain
situations. The most adequate descent method will depend on the
particular situation.
It is well advised to learn the particularities of these manoeuvres under
the supervision of a knowledgeable certied instructor.
5.1 EARS
Big ears is a moderate descent technique, able to increase the sink rate
to –3 or –4 m/s, and reduce the ground speed down to 3 to 5 km/h.
Effective piloting then becomes limited. The angle of attack and load will
also increase due to the smaller surface area of the wing. Pushing on the
accelerator/speed-bar will partially restore the wing’s horizontal speed
and angle of attack.
To activate the ‘Big ears’ manoeuvre take the 2A3 line on each A’-riser
and simultaneously, smoothly pull them outward and downward. The

13
wingtips will fold in. Let go of the risers to reinate them automatically.
If they do not, gently pump them open asymmetrically and sequentially
using the brakes, without altering the angle of attack, especially when
ying near obstacles or ying in turbulent air.
5.2 B-LINE STALL
When carrying out this manoeuvre, the wing stops ying, loses all
horizontal speed and the pilot is no longer in control of the paraglider.
The airow over the prole is interrupted and the wing enters a situation
similar to parachuting.
To carry out this manoeuvre you have to take the B below the maillons
and symmetrically pull both of them down (approx. 20-30 cm) and then
hold this position. The initial phase is quite physical (a lot of resistance)
which means that you will have to pull strongly until the prole of
the wing is deformed, when this happens the required force will be
signicantly reduced. To maintain this manoeuvre you must continue to
hold the B risers in the pulled down position. The wing will then deform,
its horizontal speed will drop to 0 km/h; vertical descending speed
increases to –6 to –8 m/s, depending on the weather conditions and how
the manoeuvre is performed.
To exit the manoeuvre, simultaneously release both risers. The wing will
then slightly surge forward and automatically return to normal ight. It
is better to let go of the lines quickly rather than slowly. This is an easy
descent technique to do but remember that the wing will stop ying, will
lose all forward horizontal speed, and its reactions will change quite a bit
when compared to a normal ight conguration.
5.3 SPIRAL DIVE
This is a more effective way to rapidly lose altitude. Beware that the
wing will experience and be subjected to a tremendous amount of
descending and rotating speed (G-force), which can cause a loss
of orientation and consciousness (blackout). This manoeuvre must
therefore be done gradually to increase one’s capacity to resist the
g-force exerted on the body. With practise, a pilot will fully appreciate
and understand it. Only practise this manoeuvre at high altitude and with
enough ground clearance.
To start the manoeuvre, rst weight shift and pull the brake toggle
located on the inner side of the turn. The intensity of the turn can be
controlled by braking slightly on the outer brake toggle. A paraglider
ying at its maximum rotating speed can reach –20 m/s, or the
equivalency of a 70 km/h vertical descent, and will stabilise in a spiral
dive from 15 m/s onwards. Good enough reasons to familiarise yourself
with the manoeuvre and understand how to exit it.
To exit this manoeuvre, the inner brake toggle (down side of the turn)
must progressively be relaxed while momentarily applying tension to the
outer brake toggle opposite to the turn. The pilot must also weight shift
and lean towards the opposite side of the turn at the same time.
When exiting the spiral, the glider will briey experience an asymmetrical
acceleration and dive, depending on how the manoeuvre was carried
out.
Practise these movements at sufcient altitude and with moderation.
6. SPECIAL CONSIDERATIONS
6.1 TOWING
The HOOK 4 P is suitable for towing. Only a qualied tow operator
should be in charge of operating a certied paragliding winch. On
the tow, the wing should be inated the same way used during a hill/
mountain ight take-off.

14
6.2 ACROBATIC FLIGHT
Although the HOOK 4 P was tested by expert acrobatic pilots in extreme
situations, it WAS NOT designed for acrobatic ight manoeuvres. DO
NOT USE THIS GLIDER for aerobatic manoeuvres. We dene aerobatic
ight as any form of piloting where the paraglider is placed in attitudes
that are not used in normal ight. To safely learn how to master aerobatic
manoeuvres, instruction must be undertaken at a certied school, under
the guidance of a qualied instructor and in a safe environment.
A complete wing and line inspection should be performed every six
months, including repairs if necessary, to guarantee the integrity of the
equipment. Extreme manoeuvres means you and your wing can be
exposed to centrifugal forces that can reach 4 to 5 G.
7. FOLDING INSTRUCTIONS
The HOOK 4 P has a complex leading and trailing edge manufactured
using a variety of different materials. A correct folding method is very
important to extend the useful life of your paraglider. It should be
concertina-packed, with the leading edge reinforcements at and the
Nitinol exible rods stacked up on top of each other. This method will
keep the prole in its original shape and protect the integrity of the wing
over time.
The wing should then be folded in three sections while taking care of not
to bend or twist the SLE. There is no need for compression during the
procedure; doing so may damage the fabric, including the risers and lines.
8. CARE AND MAINTENANCE
8.1 MAINTENANCE
Careful maintenance of your equipment will ensure continued top
performance.
The fabric and the lines should not be washed. If they become dirty,
clean them with a soft damp cloth.
If your wing is wet from contact with salt water, immerse it in fresh water
and dry it away from direct sunlight.
Direct sunlight may damage the wing’s materials and cause premature
aging. After landing, do not leave the wing exposed to the sun. Pack it
properly and stow it away in its backpack.
If ying in a sandy environment, and sand has accumulated inside the
wing, remove it before packing it away.
8.2 STORAGE
It is important for the wing to be correctly folded when stored. Keep it in
the in a cool, dry place away from solvents, fuels, oils and UV rays. Do
not leave the gear inside a car boot, as temperatures can reach up to
60ºC and damage it. Weight should not be laid on top of the equipment.
If the glider is stored with organic material, such as leaves, grass or
insects trapped inside the cells, the chemical reaction can cause
irreparable damage.
8.3 CHECKS AND INSPECTIONS
The HOOK 4 P must be periodically serviced. An inspection must be
scheduled every 100 ying hours or every twenty four months whichever
comes rst (EN/LTF normative).
Regular maintenance is the only way to guarantee the HOOK 4 P’s
integrity and keep it functioning as it should, while still conforming to the
certication criteria.

15
8.4 REPAIRS
If the wing is damaged, you can temporarily repair it by using the ripstop
material found in the repair kit, so long as no stitches are involved in the
tear, otherwise the damaged area must be repaired in a specialist repair
shop by qualied personnel. Do not attempt a home repair.
9. SAFETY AND RESPONSIBILITY
It is well known that paragliding is considered a high-risk sport, where
safety depends on the pilot.
Incorrect use of this equipment may cause severe injuries to the pilot, or
even death. Manufacturers and dealers cannot be held responsible for
your decisions or any act or accident that may result from participating in
this sport.
You must not use this equipment if you have not been properly trained
to use it. Do not take advice or accept any informal training from anyone
who is not properly qualied as a ight instructor or qualied coach.
10. GUARANTEE
The equipment and components are covered by a 2-year warranty
against any manufacturing defect. The warranty does not cover misuse
of the equipment.
DISCLAIMER:
Paragliding is an activity requiring concentration, specic knowledge and
sound judgment. Beware! Learn your skills under the supervision and
guidance of a certied school. Take out personal insurance and become
a licensed pilot. Be realistic when evaluating your knowledge in respect
to weather assessment before deciding whether or not to y. Niviuk’s
liability coverage is for its product line only. Niviuk cannot be held
responsible for your actions. Fly at your own risk!

16
11. TECHNICAL DATA
11.1 TECHNICAL DATA
HOOK 4 P 21 23 25 27
CELLS NUMBER 52 52 52 52
CLOSED 8 8 8 8
BOX 23 23 23 23
FLAT AREA m221 23 25 27
SPAN m 10,65 11,15 11,62 12,08
ASPECT RATIO 5,4 5,4 5,4 5,4
PROJECTED AREA m217,85 19,55 21,25 22,95
SPAN m 8,45 8,84 9,22 9,58
ASPECT RATIO 4 4 4 4
FLATTENING % 15 15 15 15
CORD MAXIMUM m 2,47 2,58 2,69 2,8
MINIMUM m 0,49 0,52 0,54 0,56
AVERAGE m 1,97 2,06 2,14 2,23
LINES TOTAL METERS m 208 218 227 236
HEIGHT m 6,5 6,8 7,09 7,36
NUMBER 180 180 180 180
MAIN 2+1/3/2 2+1/3/2 2+1/3/2 2+1/3/2
RISERS NUMBER 3 A+A'/B/C A+A'/B/C A+A'/B/C A+A'/B/C
TRIMS NO NO NO NO
ACCELERATOR m/m 135 135 135 135
TOTAL WEIGHT MINIMUM kg 55 65 80 95
IN FLIGHT MAXIMUM kg 70 85 100 115
GLIDER WEIGHT kg 3 3,25 3,6 3,85
CERTIFICATION EN/LTF B B B B

17
11.2 MATERIALS DESCRIPTION
CANOPY FABRIC CODE SUPPLIER
UPPER SURFACE FOR LEADING EDGE 9017 E25 PORCHER IND (FRANCE)
UPPER SURFACE FOR THE REST 70000 E3H PORCHER IND (FRANCE)
BOTTOM SURFACE 70000 E3H PORCHER IND (FRANCE)
RIBS 70000 E91 PORCHER IND (FRANCE)
DIAGONALS 70000 E91 PORCHER IND (FRANCE)
LOOPS LKI - 10 KOLON IND. (KOREA)
REINFORCEMENT LOOPS SOFT DACRON D-P (GERMANY)
TRAILING EDGE REINFORCEMENT DACRON D-P (GERMANY)
RIB REINFORCEMENT LTN-0.8 STICK SPORTWARE CO. (CHINA)
THREAD SERAFIL 60 AMAN (GERMANY)
SUSPENSION LINES FABRIC CODE SUPPLIER
UPPER CASCADES DC - 040 LIROS GMHB (GERMANY)
UPPER CASCADES DC - 060 LIROS GMHB (GERMANY)
MIDDLE CASCADES A-8000/U 090 EDELRID (GERMANY)
MIDDLE CASCADES A-8000/U 130 EDELRID (GERMANY)
MIDDLE CASCADES A-8000/U 230 EDELRID (GERMANY)
MAIN A-8000/U 280 EDELRID (GERMANY)
MAIN BREAK TNL - 280 TEIJIM LIMITED (JAPAN)
THREAD SERAFIL 60 AMAN (GERMANY)
RISERS FABRIC CODE SUPPLIER
MATERIAL 10148 LIROS GMHB (GERMANY)
COLOUR INDICATOR PAD TECNI SANGLES (FRANCE)
THREAD V138 COATS (UK)
PULLEYS RF25109 RONSTAN (AUSTRALIA)

18
11.3 RISERS LAYOUT

19
11.4 LINE PLAN

20
11.5 LENGTHS HOOK 4 P 21 11.6 LENGTHS HOOK 4 P 23
LINES HEIGHT m/m
A B C D br
1 6001 5913 6004 6103 6757
2 5940 5853 5918 6021 6441
3 5900 5815 5873 5972 6280
4 5919 5836 5917 6012 6165
5 5882 5851 5942 6027 6039
6 5843 5799 5867 5948 5999
7 5793 5719 5764 5837 6062
8 5808 5729 5789 5856 5881
9 5633 5640 5704 5810
10 5494 5608 5726 5800
11 5286 5273 5372
12 5184 5188 5246
RISERS LENGTH m/m
A B’ B C
470 470 470 470 STANDARD
340 360 380 470 ACCELERATED
LINES HEIGHT m/m
A B C D br
1 6305 6204 6307 6416 7131
2 6241 6142 6218 6330 6801
3 6201 6105 6171 6270 6634
4 6221 6127 6218 6312 6515
5 6186 6156 6255 6344 6383
6 6145 6101 6176 6262 6343
7 6093 6018 6069 6146 6409
8 6110 6029 6096 6165 6242
9 5932 5935 6012 6167
10 5786 5903 6035 6157
11 5571 5558 5662
12 5463 5468 5528
RISERS LENGTH m/m
A B’ B C
470 470 470 470 STANDARD
340 360 380 470 ACCELERATED