Atair Canopies Troll DW User manual

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Troll DW Canopy User Manual
Page 1 Atair Canopies
Canopy User Manual
Version 1.0 – May 2005

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Troll DW Canopy User Manual
Page 2 Atair Canopies
Disclaimer:
The following information must be read and understood before any use of this
equipment.
The user knows the risks of skydiving and BASE jumping and accepts that:
Skydiving and BASE jumping cause deaths and serious injuries. Many of these deaths
and injuries can be attributed to equipment malfunctions. Skydiving and BASE
jumping equipment can fail, even if the user takes all possible precautions.
Failure to open the main or reserve parachute (or to follow emergency procedures) at
a safe altitude, and/or equipment failures can result in severe injury or death.
It is the user‘s responsibility to:
•Receive proper training before any use of all skydiving and BASE equipment.
•Be extremely careful and cautious.
•Read and understand all owner’s and operations manuals for all skydiving and
BASE equipment.
•Check all skydiving and BASE equipment and replace any defective or worn
component prior to use.
•Review emergency procedures before each use of this and all skydiving and BASE
equipment.
•Check equipment warnings - do not exceed equipment limitations.
•Never violate the training and experience requirements for the specific equipment
in use.
Because of the unavoidable dangers involved in the use of this and all parachute
equipment, Atair (including, but not limited to, all owners, officers, staff and
employees) makes no warranties of any kind, expressed or implied. It is sold with all
faults and without any warranty of fitness for any purpose. By using this equipment or
allowing it to be used by others, owner/buyer waives any liability of Atair for personal
injuries, death or damages from such use. Any promises or representations inconsistent
with, or in addition to this statement of warranty are not authorized by Atair and shall
be not binding.
Skydiving and BASE jumping are high-risk activities which may cause or result in serious
injury or death.

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Troll DW Canopy User Manual
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Sections: Pages:
1. How to use this manual 6
2. Introducing Atair 7
3. Features of your Troll DW canopy 8 - 9
4. Recommended sizing & wing loading 10
5. Setting up your Troll DW canopy 11
6. Recommended drills for first flight 12
7. Packing your Troll DW Canopy 13 - 14
7.1: Packing with the Tail Gate, slider off 15 - 16
7.2: Packing with the slider 17 - 18
7.3: Packing continued 18 - 20
7.4: Packing tips for comfortable openings 20 - 21
8. Toggle assembly 22
9. Inspecting and maintaining your equipment 23 – 24
Appendix A: Contact Info

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Troll DW Canopy User Manual
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Dear Valued Customer,
We’d like to thank you for purchasing a new Atair Canopy.
We’re confident you’ll be pleased with it in every way and that
you’ll enjoy how it opens, flies and lands.
We ask you and your rigger to carefully inspect your new
canopy to completely familiarise yourself with its features and
the quality workmanship. Should you find anything that does not
seem right or if you have any questions please don’t hesitate to
contact us: [email protected]
Thank you again for selecting an Atair canopy. With proper care
it should last many years and hundreds of jumps.
Blue Skies!
Stane Krajnc
The Atair Canopies Team

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Troll DW Canopy User Manual
Page 5 Atair Canopies
In memory of Dwain Weston. Jan 31st 1973 - October 5th 2003
Dwain Weston, changed the face of modern BASE jumping. He took the sport to a
new level, leaving it much richer than when he found it. Dwain is remembered for his
incredible aerial skills but his contribution, achievements and passion for BASE jumping
will live on in all of us.
Photo by: Yuri
Dwain was the first to spot the potential of the original prototype Troll canopy during
the Petronas tower event in Malaysia, he approached Atair and asked to try the
canopy. Dwain performed many jumps with the canopy from various objects and
provided Atair with invaluable input on how to improve the canopy.
Dwain spent much time with Stane, the owner of Atair, discussing the optimum
characteristics of BASE canopies and the desired features he would like to see in future
canopies. These discussions were instrumental in the design of the Troll DW canopy.

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Troll DW Canopy User Manual
Page 6 Atair Canopies
Section 1: How to use this manual
We know you are excited to receive your new canopy and will most likely be packing
it now as you read this manual.
But please take time to read this manual completely, regardless of your experience
level!
You will learn about:
How to assemble, pack and safely use your :
The great new features of your :
How to get the most out of your :
How to take care of your :
W A R N I N G
ATAIR TROLL DW CANOPY - USER MANUAL
This manual is not a course of instruction on how to make a parachute jump, nor does
it contain regulations that govern sport parachuting and related activities.

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Troll DW Canopy User Manual
Page 7 Atair Canopies
Section 2: Introducing Atair
www.AtairCanopies.com or www.BaseTroll.com
Atair was founded in 1992 by Stane Krajnc and his wife Magdalena in Slovenia. With a
strong background in paragliding design, Atair was formed to supply the paragliding
industry with reserve canopies. With a strong passion for both paragliding and
skydiving, Atair naturally dedicated their resources to developing new technological
advances in Skydiving and BASE canopies. To date Atair has manufactured over
12,000 rounds and several thousand skydiving and BASE canopies.
In the past, Atair canopies have been sold through private labelling (Alpha, Ace,
Viper, Impulse, Space, etc.). Now all of the Atair products are available directly from
Atair.
Stane Krajnc, the owner of Atair, has been involved in air sports for the past 30 years. In
1973 Stane designed, constructed and flew his own hang glider. He has now
accumulated over thousands of hours on hang gliders & paragliders, 700 skydives and
over 300 BASE jumps.
Atair does not only make canopies for skydiving and BASE jumping, recent special
projects have included:
•Specialised large canopies for cargo applications,
•Drag chute for speed ski world record,
•Special low glide ratio canopy for a cave BASE jump.

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Troll DW Canopy User Manual
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Section 3: Features of your Troll DW Canopy
Atair is proud to introduce the Troll DW canopy.
The Troll DW is a low aspect ratio 7-cell canopy that is constructed of the highest
quality materials and is heavily reinforced in crucial high load areas such as bridle and
line attachment points. This enables it to withstand the heavy demands of BASE-
jumping. The Troll’s unique aerofoil has a specially shaped upper surface that creates
uniform skin tension and prevents deformation. This makes for a more efficient wing
with less drag.
Mission of the Troll DW Canopy
A Canopy that has:
•Good on-heading performance
•Consistent deployment altitude and inflation time
•Excellent openings (slider up and down)
•An excellent speed range, superior glide in full flight whilst stable and
controllable in steep deep brake flight
•Good flare power from full flight and also from deep brakes
•Performs flat turns efficiently without diving.
Features of Troll DW
•New wing design with thicker airfoil section with improved performance at low
air speed. The airfoil provides more lift at low air speed giving better
performance when conducting deep brake approaches.
•Increased material tension on the leading edge, thanks to specially shaped top
skin, further reducing drag and improving performance.
•Triple cross-porting allows excellent pressurization in both slider-up and slider-
down configurations.
•Load-bearing seams have chord-wise reinforcing at the line attachment points
and the lower surface has span–wise reinforcement in all high stress areas.
•The Mono Directional Valve technology (or MDV) system has been redesigned,
incorporating a fifth air in-take in the center, the surface area of the vents is the
same with each vent made smaller. This redesigned version of the MDV has
even better inflation characteristics in terms of symmetrical inflation and inflation
times.

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Troll DW Canopy User Manual
Page 9 Atair Canopies
MDV Technology
The MDV from Atair is unique in that it is a zero-p tubular shaped funnel that is about 6"
long. They are attached to mesh inlets on ribs 2, 3, 4, 5 & 6.
This design allows the air to flow in during pressurization and also during deep brake
decent, but the valve closes when air is rushing in from the nose or when you have
back pressure coming from the tail. The Troll in its standard form is already a very stable
canopy. The MDV Troll offers more stability by increasing the range in which you can
fly in deep brakes before you actually reach the stall point. The canopy has a great
flare in both its standard form and with the MDV technology.
The MDV inlets have increased the speed in which the canopy pressurizes slider up as
well as slider down. Obviously, the true benefits to having inlets are for slider down
jumps. When the canopy is jumped in the slider down configuration it offers single
stage pressurization and slider up it opens a little faster than the standard Troll. If you
are going to do many terminal jumps at a given time, it is advisable to switch sliders to
a marquisette mesh (small hole mesh slider). This helps take the edge off of the
opening without compromising consistency. Sail sliders have been known to cause
opening/heading inconsistencies on BASE jumps and we don't advise their usage.
MDV technology offers superior pressurization, giving the jumper control over the
canopy immediately. Control = Confidence!
Standard with each Troll:
* Integrated Primary-Stow tail pocket for safer low-speed deployments
* Standard and custom deep brake settings
* High visibility "contrasting" steering lines
* Mesh Slider choice of large hole mesh / small hole mesh (Sail Slider available
upon request. Advised for skydiving only)
* Tail Gate Reefing Device (BR)
* Optional black lines available.

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Troll DW Canopy User Manual
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Section 4: Recommended Sizing & Wing loading
The Troll DW is available in five precisely scaled sizes: (Note – Atair measures surface
area by measuring the span x chord of the bottom skin. Stane Krajnc, the designer of
the Troll, feels that this measurement best represents a flying canopy).
* 205 ft.2 = PIA spec 219
* 225 ft.2 = PIA spec 240
* 245 ft.2 = PIA spec 260
* 265 ft.2 = PIA spec 282
* 285 ft.2 = PIA spec 301
* 305 ft.2 = PIA spec 322
Model Troll
205
Troll
225
Troll
245
Troll
265
Troll
285
Troll
305
Number of Cells 7 7 7 7 7 7
Surface area ft2205
225
245 265
285
305
Span ft. 21.522.523.524.625.626.2
Chord ft. 10.210.711.211.712.112.5
Aspect Ratio 2.1 2.1 2.1 2.1 2.1 2.1
Pack Volume in3465
492
534 580
638
698
Canopy Weight (lbs.) 7.1 8.4 9 9.6 10.211.2
Average Body Weight lbs 114
135
157 180
202
225
Average Body Weight kg
51 61 71 82 92 102

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Section 5: Setting Up Your Troll DW Canopy
List of Components
•Canopy and lines
•Tail Gate (BR) and rubber bands 1 1/4“ by 1 3/16“ (3.2 cm by 0.5cm)
•#5 Stainless Steel Links
•Rubber Slider Bumpers
•Slider
Attaching to risers, checking continuity
Line & Riser Continuity
Left Rear Left Front Right Front Right Rear
Remember that each connector link has to show continuity from the lines to the
canopy. Check each one for proper assembly.
Each of the links will have four cascading lines. The two control lines each cascade
into five.
Once you have orientated the lines properly on the #5 links, inspect them. Finger-
tighten all 4 connector links. Then apply a 1/8turn with a 9mm wrench. Do not over
tighten as this can strip or crack the link and cause it to fail. Slide the slider bumpers
(covers) over the links.

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Section 6: Recommended Drills for first flight
Atair strongly recommends you perform some skydives with your new canopy before
using it in the BASE environment.
To do this we recommend packing your Troll DW into a large skydiving container (as
used for student skydivers).
Perform a hop ‘n pop from a suitable legal altitude (with clearance from the
dropzone).
During the flight, try the following drills:
•Gradual flare to locate stall point
•Full flare to simulate landing
•Full stall and recovery by slowing and equally releasing brakes
•Flare from half brakes
•Flare from deep brakes
•Full toggle turns
•Elevation turns (in braked flight release one toggle slightly to turn)
•Half brake turns
•Deep brake turns
•Rear riser turns
•Front riser turns
•Check length of brake line between cats eye and toggle, are you getting a full
flare when you bring your hands to waist level?
•Sharp 180º turn using alternate rear risers (simulating 180º off heading drill)
Remember to pay attention to your altitude and position relative to the dropzone.
Atair also advises you to tune your brake settings by making subsequent skydives on
the canopy.
To make adjustments to the brake settings, mark the stall point on the brake lines at
the level of the guide ring using a marker pen. Consult an experienced rigger when
adjusting the position of the deep brake and normal brake setting position.
If the length of brake line between the brake setting and toggle is too long take a
wrap of line around your hand and estimate how much the toggle attachment point
should be shortened ; again consult an experienced rigger when adjusting the
position of the toggle attachment.

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Section 7: Packing your Troll DW Canopy
Before you begin this section, please read the entire manual. If there is any element
that you don’t understand, please contact us or a qualified rigger to help you with the
assembly.
Ensure that you have correctly assembled the canopy onto the risers (see section 5)
and that you have proper line continuity. Be certain to secure the container so that it
does not move during the packing process. Make sure that the risers are even and
remain even at all times.
The first packing method to be described is without slider or slider down. Make certain
that the control lines go directly from the toggle to the outside of the canopy without
passing through anything. Make sure the toggles are attached to the control line
correctly (see section 8).
If the container you are using does not have a slider retainer you must use a suitable
material to fix the slider in place, consult your local rigger if you have any doubts. The
other alternative is to completely remove the slider by releasing each connector link in
turn using a spanner: this is time consuming and there is a risk of re-connecting the lines
in the incorrect manner.
Figure 1a Figure 1b
Figure1a: To start of the pack job you should perform a PRO (Proper Ram-Air
Orientation) pack job. Flake the canopy in a traditional pro pack manner. Before you
bring the tail around, count the three nose cells on one side and bring the tail around
behind them. In other words do not cocoon the tail around the nose. Leave the nose
cells exposed.

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Do the same on the other side, leaving the center cell to hang down in the middle.
Gently place the canopy on the ground, keeping tension on the lines. The neater you
place the canopy, the easier it will be to redress it once it’s on the ground. Find the
three nose cells on each side and tease them out gently. They should be resting neatly
on top of one another, resembling figure 1b above.
Figure 2
Figure 2: Pick a side to start redressing. From the bottom stabiliser, reach in between
the A and B lines and flake all of the fabric to the outside, keeping the lines orderly in
the center. From the next stabilizer, reach between the B and C lines, flaking all of the
fabric to the outside, keeping the lines orderly in the center. Now reach in between
the C and D lines, flaking all of the fabric to the outside, keeping the lines orderly in the
center.
Be certain to maintain tension on the lines by gently pulling the appropriate fabric
from the top of the canopy during this process. Next, be sure to clear the fabric
between the D lines and the control lines. This is done by placing your hand between
the D lines and the control lines and pulling away from the container. This will remove
the slack in the fabric between these two points. Repeat all of this on the other side
and redress by lifting the tail up so that the lines are exposed. From either side, you can
ensure that the fabric is all pulled away from the container and that the stabilizers are
clear of the lines as well. During this process, be sure to keep tension on the lines.
Ensure that the pack job is symmetrical by looking at the line attachment points on
each side and making certain they are even.

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To flake the tail, grasp the small portion of stabilizer between the D and tail on one side
and pull the fabric outward keeping the seam in the center and going straight up and
down. This should place the outer upper control line to the center. Continue by
stacking all of the seam to the tail in the center, pulling the fabric out and away from
the center. Use the seams as a guide. These will be half-cell folds. Continue all the way
across and include the center cell tail pocket. Remember, not every fold will
incorporate a control line. Do this on both sides until all seams are on top of one
another and in the center. Make certain that the canopy is completely symmetrical at
this time.
Section 7.1: Tail Gate Installation – SLIDER DOWN/OFF ONLY
(for packing with a slider, see next section)
Figure 3: Diagram showing lines included in Tail Gate
The Tale Gate (BR) reefing device is used to help reduce brake line malfunctions
during no slider jumps. The Tail Gate helps keep the lines in the center of the canopy;
the lines included in the Tail Gate are shown in the diagram above.
Refer to figures 3a and 3b. The slot for the Tail Gate is on one of the center C lines
approximately 4” down from the line attachment tab. Find this slot and place the Tail
Gate into it. When utilizing the Tail Gate, you should use a rubber band 1/4inches by 1
3/16 inch (3.2 cm by 0.5cm). Some people like to lark’s head the rubber band to the Tail
Gate. Using the lark’s head is not recommended for extreme low-speed deployments
as it could cause a hang up in release of the Tail Gate.

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Figure 3a Figure 3b
Ensure that there are no twists in the risers. Grasp the inner most line on both rear riser
links and then grasp the two lower control lines. Walk these four lines toward the
canopy. These four lines will cascade into 12* lines. These are the 12* lines that will be
placed into the Tail Gate. Make certain that there are no other lines caught up in
these 12* lines. Figure 3 represents the lines as viewed from the bottom surface of the
canopy. Be certain that only the lines that are encompassed in the ‘T’ are inside the
Tail Gate.
The C line that the Tail Gate is attached to MUST be inside the Tail Gate, so as not to
load the insert piece. Place all 12* lines into the Tail Gate. Close the Tail Gate with two
to three wraps of the rubber band, as shown in figure 3a and 3b. Check to be certain
that there are 12* lines in the Tail Gate and that the Tail Gate C line is inside the Tail
Gate. Go to section 7.3 to continue with the packing process.
*Note: The Troll DW comes standard with 4 brake lines, although can be ordered with 5
brake lines, in which case there will be 14 lines inside the Tail Gate.

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Section 7.2: Packing with a Slider
DO NOT USE A TAIL GATE WHEN PACKING WITH A SLIDER. Ensure proper line continuity
and be certain that the control lines go from the outside of the canopy through the
slider grommet of the rear riser on its corresponding side. Then take the control line
through the guide ring on the corresponding riser. Refer to section 8 to ensure proper
control line routing and toggle assembly.
Figure 4a Figure 4b
Follow the previous packing instructions up through figure 2. For slider placement,
ensure proper line continuity, keeping the left and right separation with the front slider
grommets closest to the canopy. The slider tape should be facing upward. Pull the
slider so that the front grommets rest against the bottom of the stabilizers at the B line
slider stops on both the left and right hand side. Gently lift the tape between the two
rear grommets of the slider and pull up until the grommets are resting against the
bottom of the stabilizers at the C line slider stops on both the left and right side.
The slider tape and fabric between the front and rear grommets should be placed
between the B and C fold of the canopy. Be certain that this is done to the left and
right side. This is basically quartering the slider. We don’t stow our sliders. Go to section
7.3 to continue with your pack job.

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Section 7.3: Packing Continued
Figure 5
For packing with a slider refer to section 7.2 and then return to this section.
Figure 5: Make certain that all the lines are to the center and that the canopy is
symmetrical with the left side of the canopy to the left of the center and the right side
of the canopy to the ride side of the center. There should be a nice channel down the
center of the canopy. Locate the center cell Tail pocket and bring it down to the
edge of the stabilizers. Grasp the tail fabric on each side and above it. While kneeling
on the Tail Pocket, bring the bottom outer portion of one side of the tail back and
expose the stacks of canopy. Fold the outside edge of the first two stacks inward
towards the canopy. This should be done in one long fold. We don’t utilize clamps, but
if you like to use them, this is when you would want to secure this fold. Repeat this on
the other side. Next, fold the outside edge of the bottom stack inward towards the
canopy using the same technique as on the first two stacks. This fold should be
beneath the fold of the first two stacks. Do the same on the other side.
Whilst kneeling on the canopy at the Tail Pocket, run your forearm at a 90˚angle up
the canopy from the Tail Pocket. Let your arm rest about half way up the canopy
while you use the other hand to tuck small portions of the tail around the entire
canopy. Having your arm across the width of the canopy helps ensure that you don’t
pull any lines away from the center of the canopy whilst wrapping/tucking the tail.
Make the finished width of the fold even with the edges of the Tail Pocket. Do not
cover the nose. Work the air out and count the nose cells on each side, making sure
that you count three on the left and three on the right.

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The center cell is underneath and will be accounted for when placing the canopy in
the container. Lightly tuck these cells under the pack job, your canopy should now
resemble Figure 5.
Figure 6a & 6b: Primary Stow
Figure 6: Once you have cocooned the canopy and made it the width of the Tail
Pocket, release the tension from the container. Sit on the canopy facing the
container. Open the Velcro closures on the Tail Pocket. Using the rubber band located
between the Tail Pocket and the canopy, grasp approximately 6” of line below the
rubber band. Place the bite of line in the rubber band and make a double stow, as
shown in Figure 6a, be certain not to over wrap the lines with the rubber band. Next,
tuck the primary stow between the canopy and the Tail Pocket, as shown in figure 6b.
Figure 7a & 7b: S-fold lines into Tail Pocket (Slider in “down” position)

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Figure 7and 7b: Bring 8” or so of line toward the Tail Pocket, creating an S-fold and lay
this bite in either upper corner of the Tail Pocket. Continue S-folding the lines back and
forth across the Tail Pocket. Each S-fold will slightly overlap the one before it. Stow the
lines to within 5” of the top of the risers. The lines MUST enter and exit between the two
Velcro tabs at the bottom center of the Tail Pocket. This helps ensure that the Velcro
does not actually need to open to complete line deployment. Close the Tail Pocket
by mating the Velcro to its coordinating piece. Start at the corners and work the
Velcro up the sides and across the bottom making certain no lines get caught in the
Velcro. Be sure to mate the Velcro exactly.
Refer to your container manual for instructions on how to pack the canopy into the
container to complete the pack job.
Section 7.4: Packing for comfortable openings
When jumping the Troll DW / MDV for terminal slider up jumps you can try to follow
adjustments to your pack job to help make the openings more comfortable:
1. The most significant factor that affects your openings is freefall speed. If you
deploy your canopy from a track you are much more likely to experience hard
openings. If possible, return to a box position before deploying to help dissipate
some of your horizontal speed prior to deploying (assuming the object offers
safe altitude to do so).
2. Check the suitability of your pilot chute for the delay / canopy size. An over
sized pilot chute can cause line dump and center cell stripping. If you have any
questions please contact us.
3. Rolling the nose is also an option on large terminal objects which allow
significant object separation.
Figure 1a Figure 1b