background image

 

29 

USER MANUAL  
GRAVITY Xduo 
EN REV.V01 - 2020 

being able to react calmly and correctly in such a case is to attend a safety training course 
(SIV)  where,  under  professional  guidance,  one  learns  to  master  extreme  flight  situations. 
Extreme manoeuvres should only be carried out in calm air and at a sufficient altitude and 
only  during  safety  training  under  professional  guidance  and  equipped  with  a  rescue  para-
chute. At this point the existing obligation to only fly equipped with a reserve parachute. The 
extreme flight patterns and flight situations that are described in this chapter can either be 
intentional, caused by turbulence or pilot error. Any pilot who is in turbulence or makes a mis-
take in the control of his paraglider, can get into these flight situations. All of the extreme 
flight  patterns  and  flight  conditions  described  here  are  dangerous  if  performed  without 
adequate  knowledge,  at  a  low  safety  level,  and  without  the  appropriate  instruction.  The 
incorrect  execution  of  the  flight  patterns  and  flight  conditions  described  here  can  be  life-
threatening. Under no circumstances may extreme manoeuvres be intentionally brought on 
with a passenger. 
 
 

8.6

 

Wingover 

 
To fly a wingover, the pilot flies alternating turns with increasing curve slope until the desired 
slope is reached. Collapsing normally only occurs with the Xduo at a very high curve slope. 
 

  

PAY ATTENTION_ 

An inclination of more than 60 degrees is considered aerobatics. 

 

8.7

 

Frontal Collapse 

 

 
A negative angle of attack - caused by turbulence or the reversing of the A-risers on both 
sides,  causes  a  frontal  collapse  of  the  leading  edge.  The  Xduo  usually  terminates  a  front 
collapse  quickly  and  independently.  Uniform  symmetrical  braking  on  both  sides  can  assist 
reopening. 
 
 

8.8

 

Deep stall 

 
The GRAVITY Xduo is not stall sensitive. If in a stall, caused by over-pulling on the brakes, the 
rear risers or a delayed B-stall exit, the release of the brakes or the rear risers, recovers the 
stall. Should the stall be caused by an extreme flight condition or configuration (i.e. take-off 
weight to low), a symmetric forward push on the A-riser or opening the trimmers recovers 
the stall. Flight exercises that intentionally approach the stall should only be performed with 
sufficient safety height. In no case the glider should be braked one-sidedly if one believes to 
be in deep stall. The canopy could turn negative! 
 
 
 

Summary of Contents for X duo

Page 1: ...dem glider MANUAL EN REV V01 2020 Copyright by GRAVITY airsports more GmbH H tte 45 6345 K ssen Austria tel 43 0 720 519 402 mail hello gravityparagliders eu web www gravityparagliders eu photos copyr...

Page 2: ...CRIPTION_ 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 w...

Page 3: ...F 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 Wh...

Page 4: ...y reducing risk Designing and manufacturing products applying high latest technological standards originality with long lasting quality AMBITIOUS DESTINATION Exceeding what is already great Innovation...

Page 5: ...5 USER MANUAL GRAVITY Xduo EN REV V01 2020 owner sales...

Page 6: ...tant 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...

Page 7: ...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...

Page 8: ...g 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 provide...

Page 9: ...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 an...

Page 10: ...140 230 KG 36 0 M2 4 1 NO NEIN 60 MM 150H 24 MON 150STD 24MON Yes JA YES JA Weight Gewicht 8 4KG Test flown by Eingeflogen von Periodic inspection Nachpr fung Repairs Reparaturen Date Datum Gravity P...

Page 11: ...tips that we urge every pilot to take into consideration If you are not operating at your usual winch get acquainted with the local procedures Every visitor on unfamiliar flying grounds needs to get...

Page 12: ...case the setup A B and C main lines should be changed before the wing has been flown in the original setup Please also note that adjusting the height of the suspension to the hang points on the harne...

Page 13: ...a crack or hole in the wing or line can be life threatening 11 Always make sure that the aircraft is in a proper flying condition and that the required inspections have been carried out regularly 12 B...

Page 14: ...MANUAL GRAVITY Xduo EN REV V01 2020 5 DEVICE DESCRIPTION_ 5 1 Short description A Top Sail B Risers C Stabilo D Riserbelt Illustration 06_ device description __ A TOPSAIL RISERS B __ __ A TOPSAIL __ C...

Page 15: ...15 USER MANUAL GRAVITY Xduo EN REV V01 2020 5 2 Technical Data Xduo_ Illustration 05_ technological table...

Page 16: ...lows the trailing edge on a calculated shorter situation for positive influences the brake characteristic miniribs optimizing the wing profile alongside the trailing edge brake gathering system this s...

Page 17: ...at way we can maintain supply capability within the agreed lead times and can guarantee the price stability We are aiming at keeping basic calculations stable for sales and as well as within the produ...

Page 18: ...Pilot Assistant System to ensure positive identification at take off and during the flight with big ears The D riser is equipped with the EAR FIX CLIP The clamping device is elegantly covered with ne...

Page 19: ...19 USER MANUAL GRAVITY Xduo EN REV V01 2020 Illustration 11_ riserbelt...

Page 20: ...by the form of the profile stays intact which ensures clearly better gliding GRAVITY recommends to keep the trimmer closed during take off and landing All extreme flight attitudes e g collapses are oc...

Page 21: ...on loops for the passenger B C and the centre glider suspension D The pilot always hangs himself in loop A For smaller passengers use loop C and loop B is for heavier passengers It is essential to ens...

Page 22: ...s the passenger and the pilot must always brace themselves in the wind up phase preferably by grasping the T bar so as not to be knocked over 6 2 Equipment The clothing of the passenger should be adap...

Page 23: ...rtant that the start of a refusal by the passenger may under no circumstances be enforced It has also proved helpful to warn the passenger not to look down but rather focus attention on other aspects...

Page 24: ...ement from the A riser to the canopy Equally important is that the brake lines are completely unobstructed and cannot get stuck anywhere when starting If the risers are not twisted the brake lines run...

Page 25: ...art or help in take off by two well versed pilots can be the better choice At the behind each other starting method the passenger best holds onto the loop of the T bar i e short above the carabiners A...

Page 26: ...sarily overwhelmed Especially on longer flights it is recommended to stimulate the blood circulation of the legs of the pilot and passenger by movement before landing At sufficient altitude and before...

Page 27: ...g the glider With less or no wind use both A risers The glider is filled with a consistent even draft The arms are to be stretched in extension of the A lines As soon as the inflation slows down the c...

Page 28: ...opy does not lag behind the pilot and enter a dynamic stall This is prevented by giving in to the upwind region of the thermal something to speed up Conversely the paraglider must be braked when the s...

Page 29: ...nces may extreme manoeuvres be intentionally brought on with a passenger 8 6 Wingover To fly a wingover the pilot flies alternating turns with increasing curve slope until the desired slope is reached...

Page 30: ...tical and self reopening is quick and reliable Reopening can be assisted by vigorously braking or pumping the affected side while counter steering on the open side In case of large scale collapse the...

Page 31: ...on the B straps should be released evenly and quickly to finish If the Xduo gets into the deep stall due to too slow skipping of the B stall which is not normally the case see chapter Extreme flight...

Page 32: ...length of lines after overloading tree landings water landings etc and have them replaced if necessary d when noticing changes in flight behaviour all lines lengths must be checked e the brake stem li...

Page 33: ...at The very light cross canopy X was designed and built combining premium materials and the ultramodern technical enhancements providing all constructional advantages of the square reserve parachute w...

Page 34: ...ree to accept all known and unknown probable and unlikely risks of any kind of injury The dangers associated with practicing this sport can be reduced by internalising the warning and safety requireme...

Page 35: ...death or occupational disability all of the provisions of law listed here come into force and also bind the heirs closest relatives and next of kin estate and asset managers legal successors and legal...

Page 36: ...that you ensure that before you allow someone else to use your GRAVITY Xduo that any other users who will take over the product from you permanently or for a limited period of time have read as well a...

Page 37: ...nspection must be carried out according to the intervals specified above or at the latest after 150 flight hours Ground handling should be included in the number of flight hours PAY ATTENTION_ in the...

Page 38: ...st be sent to the manufacturer or an authorised dealership or competence centre 3 The specified values changes are to be noted in the inspection report 17 6 Tear resistance control To be carried out w...

Page 39: ...be clear and intact Measurement under a load of 5 kg The determined values are to be compared to the specifications from the DHV certificate form as a declaration of conformity Permitted deviations ca...

Page 40: ...rt of the regular data check The lines must be measured with a load corresponding to 5 kg in order to obtain comparable results You can find the corresponding line lengths in the aerial sports equipme...

Page 41: ...following pages attentively You inform yourself about the terms and conditions of a two year examination check manually and carried out by yourself 2 According to the new DHV regulation the customer g...

Page 42: ...horized personnel all warranty and guarantee is void 10 All maintenance work must be carried out in accordance to the maintenance information in the operating instructions manual and the special maint...

Reviews: