START SANDING FROM HEREFailure properly prepare wing tips causes FOWt4 ~ unsightly covering job APP LY LIGHT FINGER PRESSURE HERE VIEW -. FOR THE MODEL builder emery board mLady uses file finger nails handy versatile tool case have introduced little sanders range length about four almost seven inches have fairly fine sandpaper glued both sides thin flat wood taper slightly long ones about wide Usual ly have two finenesses sandpaper Six package cost about 35 40 cents drug department stores may used sanding jobs especially flat surfaces have found work well making wingtips some scale models conform airfoil shape wing Warren D Shipp First cut off round portion emery board wide end Wrap two layers Scotch tape around end balsa wing tip should slightly larger required carved fairly close shape Place emery board wing tip shown drawing taped end resting last wing rib sand lead ing edge trailing edge stroke Start highest point airfoil sand gently forward starting again point sand rear making sure keep taped portion rib forefinger should slightly inboard wingtip other end CUT OFF END OF EMERY BOARD emery board grasped lightly other fingers taped end pressing lightly end rib guide emery board through pressure exerted fingers can sand tip shape conforms wing airfoil Scotch tape prevents damage rib during operation Constantly check work go too far new board sands balsa very quickly Some emery boards have con cave surface side convex sur face other result being stamped out large sheets Try find brand has minimum curvature sanding jobs convex surface best SEVERAL WRAPPINGS OF SCOTCH TAPE K TOP VIEW r-... ...., EMERY BOARD &-v- ij / / j