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If you damage a line:
AnylinethatisvisuallydamagedMUSTbereplaced.LinescanbeorderedfromyourlocalOzonedealer
ordirectlyfromourwebsitewww.yozone.com.Alternatively,useareputableparaglidingservicecentre
tomakethereplacementlines.
It is important that replacement lines are made from the correct materials and diameters. You should
checklengthsagainsttheircounterpartontheothersideofthewingtomakeensuresymmetry.Oncethe
linehasbeenreplaced,inateandcheckthegliderbeforeying.
Maintenance Checks
Yourwing,likeacar,shouldbe technicallycheckedtoensureproperairworthiness.Yourwingshould
beservicedbyaqualiedprofessionalforthersttimeafter24months,orafter100hours.However,if
youareafrequentyer(morethan100hrsperyear),thenwerecommendyouhavethewingserviced
annually.Thecheckershouldinformyouabouttheconditionofyourgliderandifsomepartswillneedto
becheckedorchangedbeforethenextnormalservicecheckperiod.
Thedimensionsofthelinestendtomoveduringtherstpartoftheirlife,itisthereforerecommendedto
haveaperformancetrimcheckaftertherst50hrsofuse.Toensurethecorrecttrim,thelinesshouldbe
measuredandadjustedtothepublishedvaluesasnecessary.LoopsintheClinesareinplacetomake
thisprocesseasier.
Duringthelifeofthewingthesailclothandthelinesdonotageinthesamewayoratthesamerate,it
ispossiblethatyoumayhavetochangepartorallofthelinesduringthewing’slife.Forthisreasonitis
importanttodoregularinspectionssothatyouknowtheexactconditionofallofthecomponentsofyour
glider.Werecommendthatinspectionsarecarriedoutbyaqualiedprofessional.
Youaloneareresponsibleforyouryingkitandyoursafetydependsonit.Takecareofyourequipment
andhaveitregularlyinspected.Changesinination/groundhandling/yingbehaviourindicatesthegliders
aging,ifyounoticeanychangesyoushouldhavethewingcheckedbeforeyingagain.Thesearethe
basicelementsofthecheckup:
Porosityis measuredwith aporositymeter,thetimetakenbyacertain volumeof airtogothrougha
certainsurfaceofthecloth.Thetimeinsecondsistheresult.Ameasurementisdoneinaseveralplaces
onthetopsurfacealongthespanofthegliderbehindtheleadingedge.
The tearing resistance of the cloth - A non-destructive test following the TS-108 standard which
speciesminimumtearstrengthforskydivingcanopiesshouldbemadeusingaBettsometer.(B.M.A.A.
ApprovedPatentNo.GB2270768CliveBettsSails)
Strength of the lines-Anupper,middleandlowerAline,alongwithalowerBandalowerC(andlower
D if applicable) line should be tested for strength. Each line is tested to breaking point and the value
recorded.Theminimumvalueis14Gforalllinescalculatedfromthemaximumcertiedyingweightof
theglider.Theaddedminimumstrengthforthemiddlelinesandforthetoplinesshouldbethesame.If
thebreakingstrengthistooclosetotheminimumvaluecalculated,theprofessionalshouldgiveaperiod
afterwhichyouwillhavetotestthestrengthofthelinesagain.
Lengths of the lines-Theoveralllength(riserlines+midlines+upperlines)hastobecheckedunder
5Kgsoftension.Thedifferencebetweenthemeasuredlengthandtheoriginallengthshouldnotexceed
+/-10mm.ThechangesthatcouldappearareaslightshrinkontheCorDsand/oraslightstretchonthe
A,B.Theconsequencesofthesechangescanincludeaslowertrimspeed,difcultinationetc.
Complianceofthetestsample’s suspension lines, brake lines and riserswerecheckedbythetesting
laboratoryafterthetestightswerecompleted.
Risers-Visualinspectionforsignsofwearorabrasion.Differencestomanuallengthsshouldnotexceed
+/-5mm.
Canopy check-Afullvisualcheckshouldbecarriedout:Allthecomponentsofthewing(stitching,ribs,
diagonals,lines,tabs,...)shouldbecheckedforsignsofdeterioration.
Finally,aighttesttoconrmthatthewingbehavesnormallyshouldbecarriedoutbyaprofessional.
Modifications
YourOzoneAlpina3wasdesignedandtrimmedtogivetheoptimumbalanceofperformance,handling
andsafety.Anymodicationmeansthegliderlosesitscerticationandwillalsoprobablybemoredifcult
toy.Forthesereasons,westronglyrecommendthatyoudonotmodifyyourgliderinanyway.
IMPORTANT
Take care of your
glider and make sure
you have it checked
and serviced according
to the schedule.