brakeapplicationcancauseaspinorenteranover-the-nosespiral.
BGDglidersaredesignedandtestedtorecoverfromnormalspiralswithadescentrateinferiorto16m/s,
automaticallywithoutpilotinput.Ifthepilotincreasesthedescentrateofthespiraltoover16m/sorinitiateswhatis
knownasanover-the-nosespiral,theglidermayrequirepilotinputtorecover.Inthiscaseallthepilotneedstodois
toapplysomeoutsidebrakeandsteertheglideroutoftheturn.
Theover-the-nosespiralisaspecialtypeofspiraldivewherethegliderpointsalmostdirectlyattheground.Makinga
suddenbrakeapplicationduringthespiralentrysothattheglideryawsaroundentersthis,andthenoseoftheglider
endsuppointingattheground,afterthisthegliderpicksupspeedveryquickly.Thistechniqueisverysimilarto
SATentrytechnique,andliketheSATitisanaerobaticmanoeuvre,whichisoutsidethenormalsafeightenvelope.
Pleasedonotpracticethesemanoeuvresastheycanbedangerous.Careshouldbetakenwhenexitingfromany
spiraldive.Topulloutofasteepspiraldivereleasetheappliedbrakegradually,orapplyoppositebrakegradually.A
sharpreleaseofthebrakecancausetheglidertosurgeanddiveasthewingconvertsspeedtolift.Alwaysbeready
todampoutanypotentialdivewiththebrakes.Alsobereadytoencounterturbulencewhenyouexitfromaspiral
becauseyoumayythoughyourownwaketurbulence,whichcancauseacollapse..
CAUTION:
SPIRALDIVESCANCAUSELOSSOFORIENTATION(blackout)ANDSOMETIMEISNEEDEDTOEXITTHIS
MANOEUVRE.THISMANOEUVREMUSTBEEXITEDINTIMEANDWITHSUFFICIENTHEIGHT!
Speed System
TheADAMissoldwithacceleratorrisersandaspeedstirrupasstandardbutcanbeownwithoutthespeedstirrup
attached.Launchingandgeneralyingisnormallydonewithoutusingtheaccelerator.Theacceleratorbarshouldbe
usedwhenhigherspeedisimportant.A70kgpilotontheADAM–mediumsizeshouldbeabletoreachaspeedof
50km/husingtheacceleratorsystem.Glideangleisnotasgoodinthisformat,soitisnotnecessarilythebestway
toraceinthermicconditionsandthecanopyisslightlymoresusceptibletodeations.Usingthestirrupcanrequire
someeffortandthepilot´sbalanceintheharnesscanbeaffected.Itmaybenecessarytomakesomeadjustmentsto
4FlightCharacteristics