GRAVITY X duo User manual

1
USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
X duo_ EN B tandem glider
MANUAL
EN REV.V01 – 2020
Copyright by:
GRAVITY airsports & more GmbH
Hütte 45
6345 Kössen / Austria
tel. [phone]
mail. [e-mail]
web. www.gravityparagliders.eu
photos copyright and photo & visual credits
GRAVITY airsports & more GmbH

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
1 THE PRODUCT_.......................................................................................................................... 7
1.1 GRAVITY Xduo_ high performance ................................................................................. 7
1.2 Pilot Profile ..............................................................................................................................9
1.3 Nature and environmentally friendly behaviour ........................................................ 10
1.4 Use............................................................................................................................................ 10
1.5 Signboard............................................................................................................................... 10
2 POSSIBLE USE_..........................................................................................................................11
2.1 Motorised operations ...........................................................................................................11
2.2 E-climbing assistance/ E-ascent aid................................................................................11
2.3 Towing winches......................................................................................................................11
3 THE DEFAULT SETTINGS_ ....................................................................................................12
4 SECURITY PRECAUTIONS_ ...................................................................................................13
5 DEVICE DESCRIPTION_ ......................................................................................................... 14
5.1 Short description ................................................................................................................. 14
5.2 Technical Data Xduo_ .........................................................................................................15
5.3 Innovations on our Product_ ............................................................................................16
5.4 Colours and Design_............................................................................................................17
5.5 Risers ........................................................................................................................................18
6 GENERAL INFORMATION FOR TANDEM FLIGHTS_....................................................22
6.1 Dealing with the passenger..........................................................................................22
6.2 Equipment .........................................................................................................................22
6.3 Airfield ................................................................................................................................22
6.4 Briefing of the passenger..............................................................................................23
6.5 Flight Check ......................................................................................................................24
6.6 Hang Point Check............................................................................................................24
6.7 Pilot/ Passenger Configuration...................................................................................25
6.8 Behind Each Other ..........................................................................................................25
6.9 Juxtaposition ....................................................................................................................25
6.10 Inflating the Paraglider..................................................................................................25
7 TRANSPORTATION and STORAGE_ .................................................................................27
8 THE FLIGHT_ .............................................................................................................................27
8.1 Start/ Take-Off.................................................................................................................27
8.2 Turning................................................................................................................................27
8.3 thermal / turbulence ......................................................................................................28
8.4 Landing...............................................................................................................................28

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
8.5 Extreme Flight Maneuvers............................................................................................28
8.6 Wingover............................................................................................................................29
8.7 Frontal Collapse...............................................................................................................29
8.8 Deep stall ...........................................................................................................................29
8.9 Full Stall............................................................................................................................. 30
8.10 Collapse ............................................................................................................................. 30
9 Rapid descent .......................................................................................................................... 30
9.1 „Big Ears“ .......................................................................................................................... 30
9.2 B-Stall...................................................................................................................................31
9.3 Emergency piloting/ control.............................................................................................31
10 REPAIRS_ ................................................................................................................................31
11 MAINTENANCE and CLEANING_.........................................................................................31
11.1 Packing....................................................................................................................................32
11.2 Recycle....................................................................................................................................33
12 FLYING ACCESSORIES_ ........................................................................................................33
12.1 Xfusion _ guard, performance and quality - in a petite pack............................33
13 PRESUMTION OF RISK_ ................................................................................................... 34
14 LIABILITY DISCLAIMER_ ...................................................................................................35
15 SAFETY ADVICE and LIABILITY_...................................................................................35
16 LIABILITY EXEMPTION and WAIVER_ .........................................................................36
17 MAINTENANCE MANUAL_ ...................................................................................................37
17.1 Subject to inspection and inspection intervals ..........................................................37
17.2 Who is authorized to check? ...........................................................................................37
17.3 Rescue inspection equipment..........................................................................................37
17.4 Holes and cracks ..................................................................................................................37
17.5 Abrasion and expansions ..................................................................................................38
17.6 Tear resistance control ......................................................................................................38
17.7 Canopy porosity measurements .....................................................................................38
17.8 Connecting parts .................................................................................................................39
17.9 Lines.........................................................................................................................................39
17.10 Tensile strength values and tear resistance............................................................39
17.11 Checking line lengths and fixings.............................................................................. 40
17.12 Line length measurements: ......................................................................................... 40
17.13 Stitch/ Sewing control of trimming and settings................................................. 40
17.14 Miscellaneous.................................................................................................................... 41

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
18 IMPORTANT -> carried out inspections ....................................................................... 41
SERVUS
There are those very special and rare scenes and encounters in time, when we indulge in the
present, feeling the now and simply pure joy. The GRAVITY team has devoted its efforts, work
and vision entirely to and around the pleasures and enjoyment to the art of flying. Not only
do we all live the spirit and mind-set of safety and freedom every day, we also want to share
it with as many people and like-minded airheads as possible! GRAVITY develops innovative
products for paragliding and offers a full-service range with the great desire to make our
products accessible to as many enthusiasts and sportsmen out there.
WE PROCLAIM
-> Secured and lasting enjoyment!
GRAVITY strives for the highest level of passive safety, with inspiring, performing and
convincing products that make you truly happy. Our products deliver reliably, supporting
and aiding the pilot even in more challenging conditions.
It’s simple that the fun factor increases significantly by reducing risk. Designing and
manufacturing products, applying high, latest technological standards, originality with long-
lasting quality.
AMBITIOUS DESTINATION
-> Exceeding what is already great!
“Innovation is a trusted, strong driver and successful progress the best vessel!” With this we
are aiming to improve, grow and develop personally and our devices every day. Evolving
and advancing on certain thoughts and ideas about the current state of a product, how to
improve safety and protection, including sustainability with fresh, out of the box angles and
approaches. We are proud of our work, savour uncompromising quality and love our sport.
The products are crafted and tested with utmost care, in order to create and maintain long
lasting quality.
THE HEART OF TRADE
-> man-kind
Managing the team responsibly and with care, treating our surroundings and nature with
respect comes just as natural to us as how we communicate with each individual customer
and pilot. The GRAVITY team and family keeps an authentic and plain management style.
Evident, direct structures enable active, empowered interactions and makes us dynamic and
flexible. We wish you many countless, lasting, impressive explorations and moments with your
GRAVITY product.
Stefan Berger

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
owner & sales

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
PAY ATTENTION_
This operating manual is an important part of the aircraft. Please study and revise it well and
in detail, due to the fact that there is a legal OBLIGATION to deal with the air sports device
and its special features prior commissioning it. The manual is intended to make the use
of the
GRAVITY Xduo
as safe and easy as possible.

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
1 THE PRODUCT_
1.1 GRAVITY Xduo_ high performance
A new era of tandem flight has begun. We managed to take the agile solo handling to the two
-seater class with our Xduo for the very first time! High turn propensity while using low control
pressure are making this glider a very efficient and fun working tool for every tandem pilot.
The double seater reacts precisely and without any delay already with little steering impulses.
With the handling being almost effortless, the pilot may even happen to forget that he is
currently flying a tandem. The shark nose is delivering high performance as well as stability
during all kinds of conditions and situations.
The Xduo is successful combination of high performance with highest safety standards. A
long-lasting glider, using enduring, high-quality materials while emphasising air pleasure. The
advanced two-seater is available in two configurations as GT or Pro version. Thereby the GT
is aimed at ambitioned tandem pilots and the PRO version is aimed at professionals.
Illustration 01_ GRAVITY Xduo
During the planning and development phase, much emphasis was put into creating
outstanding take-off features. Even at zero-wind the Xduo fills itself, fast and effortless and
rises over the pilot in a controlled manner. The low take off speed and a surprisingly short
start run are offering a stress free take-off even with demanding passengers. But also during
the landing the outstanding slow-flight features convince combined with the high
performance potential of the wing for very good flair characteristics, making even the landing
a simple experience for the passenger and the pilot. Low-weight of the canopy with high
durability – that is what the smart material mix in combination with high quality processing of

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
the new Xduo promises. The top materials Dokdo 30 and Dokdo 20 are providing a low weight
at high abrasion resistance.
For the
PRO version we used the specifically developed PX40
material, which is often and
successfully applied in the acro scene. The extreme resistance to abrasion and tearing was a
special topic and big matter when it comes to return on investment of professional tandem
companies. The Xduo is covering a high weight range for a start weight from 140 kg up to
230 kg for one and two seated flying. Both versions have the LTF/EN B certification.
Illustration 02_ GRAVITY Xduo
Chief designer Ernst Strobl equips the Xduo with various constructive innovations. The PPN
and the shark nose are providing a higher profile fidelity alongside the cell opening. Elaborate
calculations of the ballooning in combination with the optimized pre-tensioning of the wing
are ensuring the perfect flow around the profile. The High Pressure Crossport Design (HPCD)
provides an ideal cross aeration of the crossport and ensures a balanced internal pressure in
the whole wing. In the rear part of the wing Miniribs and the Break Gathering System (BGS)
are providing an efficient force transmission of the brakes. The riser is equipped with an
innovative trimmer system. The effective system prevents the warping of the profile, through
not only accelerating the D and C level, but also the B level is being changed in relation to the
angle of attack. Through that the form of the profile is being maintained, which leads to better
gliding. On the D-riser a special clamping device is mounted, which allows the pilot to fixate
the brake lines in any position. Therefore, even in turbulent conditions, you can take care of
the passenger. A separated A-riser offers an easy way for doing Big Ears.

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
1.2 Pilot Profile
We designed and built the Xduo from scratch, placing much value into first class handling,
which is clearly noticeable through the low control pressure. The double seater reacts
precisely and promptly, already to the smallest control pulses and is therefore easily steered
into curves and manoeuvred in general. It may occur that you forget you are flying a tandem
at all. In terms of performance, the Xduo makes up for its surface area having a double effect.
Working very efficiently in thermal lift and reliably transforms it into height and when in
turbulent air, the glider stands solidly with precise feedback and a direct flight feeling.
Illustration 03_ GRAVITY Xduo
The shark nose is providing high stability and an extended inflow area. We doubled passive
safety as it is a priority when flying with passengers. The canopy reactions are moderate and
very damped accordingly, creating the sense of calm and composure in every situation.

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USER MANUAL
GRAVITY Xduo
EN REV.V01 - 2020
1.3 Nature and environmentally friendly behaviour
We ask you to perform our sport in a manner, that impacts nature and environment with
minimum intensity or as little as possible. Please do not walk off-track paths, don`t leave any
waste, don’t make noise uselessly and respect the sensitive biological habitat in the mountains
or any nature surroundings. Especially at take-off areas maximum care for nature is necessary.
1.4 Use
The Xduo was built for single-seat use only. The Xduo is a light air sports device, with an
unladen weight of less than 120 kg in the paraglider division. The training-ready Xduo glider
is an ideal wing and companion for beginners as well as advanced pilots. a wide range of
pilots. The Xduo is sample inspected and certified according to LTF/EN B norm. The approval
of the product was carried out and conducted according to current legal requirements and
specifications:
• Inspection guidelines: LTF 91/09 & EN 926-1:2006, 926-2:2013
Accredited testing centre: EAPR GmbH, Marktstr. 11, 87730 Bad Grönenbach, Germany
1.5 Signboard
The essential and relevant product data is positioned on each product by default and in
accordance to the admission office. In the case of the entire GRAVITY paraglider range these
are visibly placed are the centre of the canopy.
Illustration 04_ Signboard
WARNING! Read and understand the owner’s manual
of this paraglider before operation.
LTF 91/09 & EN 926-1:2006, 926-2:2013
EAPR GmbH, Marktstr. 11, D-87730 Bad Grönenbach
Paraglider:
Gleitschirm:
Conformity:
Geprüft von:
Te s t S t a n da r d :
Prüfrichtlinie:
Te s t C e n t er :
Prüfstelle:
Serial No.:
Werk Nr.:
Date:
Datum:
Prod. Dat.
Prod. Dat.
Xduo
LTF / E N - B
1
14 0 - 2 3 0 K G
36,0 M2
4+1
NO / NEIN
60 MM
–
15 0 H 2 4 M O N. / 150STD 24MON.
Yes / J A
YES / JA Weigh t:
Gewicht: 8,4KG
Test-flown by / Eingeflogen von :
Periodic inspection / Nachprüfung:
Repairs / Reparaturen: Date / Datum:
Gravity-Paragliders GmbH Hütte 45 | A 6345 KÖSSEN [email protected]
CONTACT
Te s t R e f e r e n c e - N o :
Musterprüf-Nr.:
Te s t R e f e r e n c e - N o :
Musterprüf-Nr.:
Class:
Klasse:
Number of seats:
Anzahl Sitze:
       
Startgewicht:
            
Startgewicht Motor:
Projected Area:
Projizierte Fläche:
Number of risers:
Anzahl Traggurte:

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
         
max.way of accelaration:
Beschleunigerweg:
Suitable for schooling:
Schulungstauglichkeit:
Perio dic ins pection after:
Regelmässig Nachprüfung nach:
Towing:
Windenschlepp:
gravity-paragliders.eu
Paragliding and Paramotoring is a hazardous activity that can and sometimes does result in severe injury or death. The designer, manufacturer,
distributor, wholesaler, instructor and retailer cannot and will not guarantee your safety when using this equipment nor accept responsibility

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understand the correct and safe use of this equipment, to use it only for the purpose for which it is designed, and to practice all proper safety
procedures before and during use. Paragliding and Paramotoring require careful and constant care. Over time, solar radiation, dirt, dust,
grease, water, wind, stress, and other wear will degrade the materials, performance, and safety of the equipment, there by increasing the
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