PuttingontheCloth.
Wearenowreadytoputontheclothcoveringwhichholdstheairandmakesthemachinebuoyant.Thekindofmaterialemployedisofsmallaccountsolongasitislight,strong,andwind—proof,ornearlyso.Someaviatorsusewhatiscalledrubberizedsilk,otherspreferballooncloth.Ordinarymuslinofgoodquality,treatedwithacoatoflightvarnishafteritisinplace,willanswerallthepurposesoftheamateur.
Cuttheclothintostripsalittleover4feetinlength.
Asyouhave20feetinwidthtocover,andtheclothisoneyardwide,youwillneedsevenstripsforeachplane,soastoallowforlaps,etc.Thiswillgiveyoufourteenstrips.Gluetheendofeachstriparoundthefronthorizontalbeamsoftheplanes,anddraweachstripback,overtheribs,tackingtheedgestotheribsasyougoalong,withsmallcopperorbrasstacks.Indoingthiskeeptheclothsmoothandstretchedtight.Tacksshouldalsobeusedinadditiontotheglue,toholdtheclothtothehorizontalbeams.
Next,givetheclothacoatofvarnishontheclear,orupperside,andwhenthisisdryyourgliderwillbereadyforuse.