UP HERE Northeast autumn has arrived its time think putting away equipment another season have tendency keep charging bat teries hopes little good weath er realistically would well forget So what should done instead wishful thinking First remove equipment various aircraft field kits clean Soap water go long way prefer dish detergent like Lux can use whatever works Things avoid lacquer thinner caus tic cleaners like Fantastic similar preparations will attack plastic cases servos cloud meter faces otherwise spoil day event have already clouded meter face high-nitro fuel some thing use soft rag toothpaste lit tle water can work wonders toward restoring like-new appearance Wood al cohol poisonous works well removing sticky scum castor oil gets everything Wood alcohol methanol basic ingredient model airplane fuel Remove back transmitter blow out dust has accu mulated vacuum cleaner useful task providing type has hose can connected blow - as well suck Make sure hose free loose dust inside insure transmitter gets cleaner rather dirtier replacing transmitter back cover note replace loose screws coarse-threaded sheet-metal screws used may necessary use next larger size get snug fit Any time change original screw part equipment especially attentive length because dont want create short circuits checking screws look also little rubber feet Needed replacements can usually found electronic parts store con tact dealers service department point good idea assem ble loose servo trays screws groinmets spare servos other parts place Clean inspect necessary place parts system includ ing charger sturdy box can used long-term storage system own Now assemble flight pack complete system workbench time turn systems exercise servo moving slowly ex treme other several times control channel using various speeds stick motion Note responses fill out Table 1 right have filled some check marks further discussion Looking table see Elevator Gear Aux 1 Aux 3 channels show good performance Unplug servos Aileron Rudder Throttle Aux 2 positions set aside further consideration Move re maining good servos posi tions repeat test Log results before example aileron channel remains jumpy noisy may con clude servos removed rudder throttle Aux 2 posi tions need some attention addition have problem somewhere aileron system about what would ex pect see after seasons flying Lets try decide aileron trouble lies first easiest way find out locate someone has RC system frequency ask him try operate receiver using transmitter aileron channel now works correctly can assume transmitter fault likely cause dirt wear poten tiometer performs aileron func tion know what potentiometer replace damaging transmitter advice re place turn job over manufacturers service department case use exactly same part remove because potentiometers TABLE 1 Aileron Elevator Rudder Throttle Gear Aux 1 Aux2 Aux3 Slow Sticky Jumpy Noisy Good I TABLE 2 Aileron Elevator Rudder Throttle Gear Aux 1 Aux 2 Aux 3 Slow Sticky Jumpy Noisy Good I January 1977 11 1cImnic1LJert MVacuum cleaner can set blow useful dislodging accumulated dust sure cleaner systemand dust Check antenna inside outside Some units subject antenna wire breakage should keeper come loose twisted Radio Technique alike difference between correct part substitute can easily lot trouble replacement potentiometer doesnt cure trouble best bet Service Department noisy channel can caused transistor elec trically noisy must replaced cold solder joints defective resistors capacitors host other items probably equipped test Unless looking electronic education no way justify time expense finding trouble Its efficient give trouble experts Lets say trouble re ceiver/decoder Todays receivers tiny make much use integrated circuits about feasible home repair change crystal discussed earlier article crystal likely affect channel thats problem likely its defective component cold solder joint cant find something obvious like wire aileron line frac tured through its strands component makes aileron servo jump around touch other job service-man hate seem negative about service charge minor compared price rest system have placed orbit have receiver hand inspect single wire soft spots breaks place leave case place enter plug Another possible.cause jumpy per formance plugs have become en crusted dirt gummy old castor oil Wood alcohol rescue addi tion sometimes possible neces sary increase tension mates metal parts plug receptacle can done gently prying sharp needle pin Test assembling plugs Keep working until grip like new Sonofagun aileron channel isnt noisy Inspect antenna lost perfectly good airplane summer tenna fractured point exited receiver case Just before crash plane performed three axial rolls self flew nothing hap pened As hastened land aileron channel got twitchy everything stopped working crash totally unnecessary little preventative main tenance would have prevented next column will discuss servo re pairs meantime check expira tion date FCC license FCC will tell has expired nor will mail form renew have everything Fly ing Models magazine has made easy December issue contains neat little two-page spread prepared good friend Bob Aberle tells obtain license need RC flying Included article blank FCC 505 form can either tear out magazine copy Use need charge up preven tative maintenance also Earlier RIG Sportsman News Maga zine printed FCC license application FCC 505 AMA continues offer free FCC license applications individuals also clubsin num ber requested Similarly AMA providing FCC license applications manu facturer will put kits equip ment dealers distributors will provide applications customers Requests FCC license applications should sent direct AMA HQ 815 Fifteenth St NW Washington DC 20005 George Myers 70 Froehlich Farm Rd Hicksville NY 11801 January1977 13 Above Components assembled bench visually check servos per text Right Rubber feet X-mitter may lostreplaceable Sometimes make-do rubber foot kids toy can used photo Below Wiring connections should carefully checked de scribed text particularly receiver servos Procedure described should followed maintenance season over
Edition: Model Aviation - 1977/01
Page Numbers: 11, 13
UP HERE Northeast autumn has arrived its time think putting away equipment another season have tendency keep charging bat teries hopes little good weath er realistically would well forget So what should done instead wishful thinking First remove equipment various aircraft field kits clean Soap water go long way prefer dish detergent like Lux can use whatever works Things avoid lacquer thinner caus tic cleaners like Fantastic similar preparations will attack plastic cases servos cloud meter faces otherwise spoil day event have already clouded meter face high-nitro fuel some thing use soft rag toothpaste lit tle water can work wonders toward restoring like-new appearance Wood al cohol poisonous works well removing sticky scum castor oil gets everything Wood alcohol methanol basic ingredient model airplane fuel Remove back transmitter blow out dust has accu mulated vacuum cleaner useful task providing type has hose can connected blow - as well suck Make sure hose free loose dust inside insure transmitter gets cleaner rather dirtier replacing transmitter back cover note replace loose screws coarse-threaded sheet-metal screws used may necessary use next larger size get snug fit Any time change original screw part equipment especially attentive length because dont want create short circuits checking screws look also little rubber feet Needed replacements can usually found electronic parts store con tact dealers service department point good idea assem ble loose servo trays screws groinmets spare servos other parts place Clean inspect necessary place parts system includ ing charger sturdy box can used long-term storage system own Now assemble flight pack complete system workbench time turn systems exercise servo moving slowly ex treme other several times control channel using various speeds stick motion Note responses fill out Table 1 right have filled some check marks further discussion Looking table see Elevator Gear Aux 1 Aux 3 channels show good performance Unplug servos Aileron Rudder Throttle Aux 2 positions set aside further consideration Move re maining good servos posi tions repeat test Log results before example aileron channel remains jumpy noisy may con clude servos removed rudder throttle Aux 2 posi tions need some attention addition have problem somewhere aileron system about what would ex pect see after seasons flying Lets try decide aileron trouble lies first easiest way find out locate someone has RC system frequency ask him try operate receiver using transmitter aileron channel now works correctly can assume transmitter fault likely cause dirt wear poten tiometer performs aileron func tion know what potentiometer replace damaging transmitter advice re place turn job over manufacturers service department case use exactly same part remove because potentiometers TABLE 1 Aileron Elevator Rudder Throttle Gear Aux 1 Aux2 Aux3 Slow Sticky Jumpy Noisy Good I TABLE 2 Aileron Elevator Rudder Throttle Gear Aux 1 Aux 2 Aux 3 Slow Sticky Jumpy Noisy Good I January 1977 11 1cImnic1LJert MVacuum cleaner can set blow useful dislodging accumulated dust sure cleaner systemand dust Check antenna inside outside Some units subject antenna wire breakage should keeper come loose twisted Radio Technique alike difference between correct part substitute can easily lot trouble replacement potentiometer doesnt cure trouble best bet Service Department noisy channel can caused transistor elec trically noisy must replaced cold solder joints defective resistors capacitors host other items probably equipped test Unless looking electronic education no way justify time expense finding trouble Its efficient give trouble experts Lets say trouble re ceiver/decoder Todays receivers tiny make much use integrated circuits about feasible home repair change crystal discussed earlier article crystal likely affect channel thats problem likely its defective component cold solder joint cant find something obvious like wire aileron line frac tured through its strands component makes aileron servo jump around touch other job service-man hate seem negative about service charge minor compared price rest system have placed orbit have receiver hand inspect single wire soft spots breaks place leave case place enter plug Another possible.cause jumpy per formance plugs have become en crusted dirt gummy old castor oil Wood alcohol rescue addi tion sometimes possible neces sary increase tension mates metal parts plug receptacle can done gently prying sharp needle pin Test assembling plugs Keep working until grip like new Sonofagun aileron channel isnt noisy Inspect antenna lost perfectly good airplane summer tenna fractured point exited receiver case Just before crash plane performed three axial rolls self flew nothing hap pened As hastened land aileron channel got twitchy everything stopped working crash totally unnecessary little preventative main tenance would have prevented next column will discuss servo re pairs meantime check expira tion date FCC license FCC will tell has expired nor will mail form renew have everything Fly ing Models magazine has made easy December issue contains neat little two-page spread prepared good friend Bob Aberle tells obtain license need RC flying Included article blank FCC 505 form can either tear out magazine copy Use need charge up preven tative maintenance also Earlier RIG Sportsman News Maga zine printed FCC license application FCC 505 AMA continues offer free FCC license applications individuals also clubsin num ber requested Similarly AMA providing FCC license applications manu facturer will put kits equip ment dealers distributors will provide applications customers Requests FCC license applications should sent direct AMA HQ 815 Fifteenth St NW Washington DC 20005 George Myers 70 Froehlich Farm Rd Hicksville NY 11801 January1977 13 Above Components assembled bench visually check servos per text Right Rubber feet X-mitter may lostreplaceable Sometimes make-do rubber foot kids toy can used photo Below Wiring connections should carefully checked de scribed text particularly receiver servos Procedure described should followed maintenance season over