Portable Frequency Pin Board Easy build unit adds flexibility flightline operations K U Jim Faassen local Soaring club uses public field serves other purposes days flying Thus-it necessary leave no permanent structures field requirement sparked interest frequency pin carrier easily portable As result interest pin carrier depicted pictures plans accompanying article developed serviceable has attractive appearance can carried easily person materials used its construction readily available can constructed few hours As noted plans base unit made wood Fir plywood may used board will attractive made veneered plywood veneered material has neater edge surface affords better finished look unit shown pictures made cherry veneered plywood upper lower pm holder dowel supports made solid cherry center pin holder dowel support made veneered plywood other materials required one-inch dowels legs five three-foot lengths 5A6 dowel pin holders set pin numbers can generated paper hand computer flexible clear plastic tubing slip over pin holder dowels small pieces hardwood making pin holder dowel supports leg sockets flagpole bracket wood screws some satin exterior varnish hardwood leg sockets pin holder supports should match veneer board best appearance board supported three legs two side legs stow upside down sockets use slipped out sockets reversed reinserted center leg carried separate piece slip fit flagpole bracket mounted upside down back board flagpole bracket also serves carrying handle access lathe leg dowels turned down socket end provide shoulder stop bear against leg sockets As alternative 48 Model Aviation right Rear view board legs folded storage Legs stored upside down removelreverse use Far right Flagpole bracket mounted upside down rear surface board Center leg slip fit bracket Right Wood leg sockets pin holder supports should match board veneer best appearance leg stops could made installing cross pins appropriate points one-inch dowels boring leg sockets take full dowel diameter slots board reduce wind load bit functional part unit although serve secondary purpose reducing weight slightly board designed channel tags 2/s x 1/s mounted spring-loaded clothespins Paper labels channel numbers spaced 13A-inch centers cemented pin holder dowels dowel has clear plastic tube protect channel numbers concerned about sensitivity clear plastic tubing UV light two years since board built has problem tubing must remain transparent channel numbers pin dowels legible tubing used soft flexible PVC type available hardware stores size selected provided close slip fit pin holder dowels recognition chance vinyl tubing might need replaced upper lower dowel supports fastened board screws dowels glued sockets Use flathead screws countersunk holes entering board back Glue used tack center support pin dowels place stick channel numbers dowels 3M 77 works adhere paper numbers dowels Glue pin holder dowels plastic tubes sockets least end prevents twisting dowels frequency pins clipped supports side legs fastened back board screws glue case screws enter board front club has found board serviceable practicable although required infrequently has used modifications Faassen 2 Tenby Chase Dr NewarkDE 19711 See drawing page 51 May1997 49 Top Slots cut board decrease wind resistance lighten unit slightly
Edition: Model Aviation - 1997/05
Page Numbers: 48, 49
Edition: Model Aviation - 1997/05
Page Numbers: 48, 49
Portable Frequency Pin Board Easy build unit adds flexibility flightline operations K U Jim Faassen local Soaring club uses public field serves other purposes days flying Thus-it necessary leave no permanent structures field requirement sparked interest frequency pin carrier easily portable As result interest pin carrier depicted pictures plans accompanying article developed serviceable has attractive appearance can carried easily person materials used its construction readily available can constructed few hours As noted plans base unit made wood Fir plywood may used board will attractive made veneered plywood veneered material has neater edge surface affords better finished look unit shown pictures made cherry veneered plywood upper lower pm holder dowel supports made solid cherry center pin holder dowel support made veneered plywood other materials required one-inch dowels legs five three-foot lengths 5A6 dowel pin holders set pin numbers can generated paper hand computer flexible clear plastic tubing slip over pin holder dowels small pieces hardwood making pin holder dowel supports leg sockets flagpole bracket wood screws some satin exterior varnish hardwood leg sockets pin holder supports should match veneer board best appearance board supported three legs two side legs stow upside down sockets use slipped out sockets reversed reinserted center leg carried separate piece slip fit flagpole bracket mounted upside down back board flagpole bracket also serves carrying handle access lathe leg dowels turned down socket end provide shoulder stop bear against leg sockets As alternative 48 Model Aviation right Rear view board legs folded storage Legs stored upside down removelreverse use Far right Flagpole bracket mounted upside down rear surface board Center leg slip fit bracket Right Wood leg sockets pin holder supports should match board veneer best appearance leg stops could made installing cross pins appropriate points one-inch dowels boring leg sockets take full dowel diameter slots board reduce wind load bit functional part unit although serve secondary purpose reducing weight slightly board designed channel tags 2/s x 1/s mounted spring-loaded clothespins Paper labels channel numbers spaced 13A-inch centers cemented pin holder dowels dowel has clear plastic tube protect channel numbers concerned about sensitivity clear plastic tubing UV light two years since board built has problem tubing must remain transparent channel numbers pin dowels legible tubing used soft flexible PVC type available hardware stores size selected provided close slip fit pin holder dowels recognition chance vinyl tubing might need replaced upper lower dowel supports fastened board screws dowels glued sockets Use flathead screws countersunk holes entering board back Glue used tack center support pin dowels place stick channel numbers dowels 3M 77 works adhere paper numbers dowels Glue pin holder dowels plastic tubes sockets least end prevents twisting dowels frequency pins clipped supports side legs fastened back board screws glue case screws enter board front club has found board serviceable practicable although required infrequently has used modifications Faassen 2 Tenby Chase Dr NewarkDE 19711 See drawing page 51 May1997 49 Top Slots cut board decrease wind resistance lighten unit slightly
