NKClearNavManual•Version0.5•July3,2008
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optimizingyourglideangle.However,manymoreexperiencedgliderpilotsconsiderittobelesssafe
thanleavingtheMacCreadynumberatasettingthatmatchestheactualsoaringliftconditions.The
reasonisthatataMacCreadysettingofzeroyouareattheraggededgeofmakingithome.Youhave
nomarginforerror(orsink).Youcan’tslowdownanyadditionalamounttostretchyourglideor
speeduptogetthroughsink.WiththeMacCreadysettomatchtheday’ssoaringconditionstheflight
computerwillrecommendthatyouhavemorealtitudebeforestartingyourfinalglidewhichwillallow
youtoslowdowntostretchyourglideinthefutureifnecessaryorspeedupinsinkandstillhave
enoughextraaltitudetomakeithome.Inaddition,youwillarrivehomemorequickly.
TotalEnergyFinalGlide
TheClearNavusesafeaturecalled“TotalEnergyFinalGlide”totakeairspeedintoaccountwhen
calculatingglidealtitudes.WhenyourspeedincreasesthenumberintheFinalGlidewindowwill
decreasebecauselessaltitudeisrequiredtomakeittoyourdestination–becauseyoucanpullupand
gainsomealtitudeatanytime.WhenyourspeeddecreasesthenumberintheFinalGlidewindowwill
increasebecausemorealtitudeisrequiredtomakeittoyourdestination–becauseyouhavelessextra
energytoconvertintoaltitude.