Radio Control Giant Scale Bob Beckman CABLE CONTROLS have inquir ies about hows whys cable control systems couldnt possibly cover whole subject column Ill try outline basics First lets take look advantages disadvantages involved primary advan tage high strength low weight pushrod system depends rigidity rod direction control surface deflection almost pushrod material available need rigidity pushing dictates larger massive piece would need ed handle force involved pulling deflect surface second advantage flexibility cable system can take almost path desire pushrod must have clear straight path servo control surfaces Next set up properly cable system helps isolate servo some con trol surface forces Another point models control cables scalelike pushrods important advantage just plain like working Out course few thorns bed roses people biggest thorn have never done dont know start hope column will blunt Next need materials fittings havent used before Ill cover go along greatest potential disadvantage some thing has happened yet either because Im very careful very lucky both Once cable system installed structure completed almost impossible rerun cable cable should break much likely should lose control end let slither back out reach real trouble Keep point mind plan implement installation Lets get some specifics First what use get first stop will sporting goods store What after some nylon-covered stranded steel fishing leader comes different sizes iden tified weight leader can support like use 30-lb-test leader Lighter 20-lb-test stuff would probably adequate purposes prefer working slightly larger material 20-lb leader does make beautiful non-stretchable trammel line Along leader want get supply proper size ferrules crimp ing tool Next going need bellcranks con trol horns cable pulleys can make yourself have right materials tools its cheaper easier get CB Associates Bob Siegelkoff 54 Model Aviation Action Bob Seigelkoffs AgCat sprays swath dust mixture baby powder flour field Morgan Hill CA fifth servo operates dust-hopper flapper CB Associates Inc makes tine line cable pulleys control horns belicrank Rug ged practical Giant Scale accessories make easy implement cable-control systems Heres secure ends cables belicrank control horn column has details Bobs Stinson Voyager used pulieys run servo installation Bobs rudder cables down side Piper Tomahawk modeis Trim adjust- fuselage elevator cables ments easily made whole opposite side Note pulleys mounting plate can lifted out mounted horizontally Final adjustment maintenance work system will take slack cables CB long-time Giant Scale enthusiast started using cable systems long time ago Since business making RC ac cessories designs makes what wants own models makes avail able rest us cant get local hobby shop still have local hobby shop look CB ads Model Aviation High Flight Now have line materials need can start planning installa tion can follow normal procedures mounting servos two differ ences First must use bellcranks make transition cables Second will have freedom locating servos because dont have worry about straight shot servo control surface pushrod Some months pictures show two different approaches mounting bellcranks common objective both cases mount bellcranks firmly can take static strain cables same time close enough servos can driven short pushrods Stinson Voyager Tomahwak models used A-in plywood plates mount both servos bellcranks necessary servo can removed simply after disconnecting pushrod bellcrank bellcranks secured 6-32 screws blind nuts bottom plate whole plate can removed leaving bellcranks hanging ends cables Bob Siegelkoff took other approach Grumman AgCat mounted bellcranks single horizontal axle Simple very neat model cables run directly through open fuselage needed run cables through pulleys down sides fuselage vertically-oriented bellcranks would have awkward Lets assume reason another cant simply run cables directly control surfaces Now will need appreciate CBs cable pulleys unit consists turned aluminum pulley molded glass-filled nylon mount combi nation designed cable captured between pulley fitting cable cannot slip off also can used singly stacked together form multiple pulleys Voyager used single pulleys direct rudder elevator cables sides fuselage double units lead cable pairs back tail solution problem mounting pulleys bolt Continued page 155 Phil used twin Zenoah G-28 engines jberglaSS Engine owlingS Available Edward Lloyd Mollywood Ave and 94602 415482-3206lOam-IpmPSTlpm-4pmEST WHEN YOU FORGETOUR UNITS REMEMBER Wet Cell & Gelled Cell Batteries Completely automatic operation Connect forget Pays itself eries last two three times longer Two models fit size batteries REGULAR MODEL$3995 field kit smallPlus $2 S & H electric boat batteriesSpecify 6 12 24V HEAVY DUTY MODEL$4995 sport winch large boat andPlus $2 505 & H electric power charging baneriesSpecify 6 1 2V CaRa Products PO Box 221 Canton SD 57013 605-987-5924 SASE o nomao Oeae qu e ed Balsa Spruce Plywood Kit Mfg match current prices now paying quality Open Public 40-60% Discounts RC System NiCd Batteries chargers need age Cycler prevent memory Tester Ito find bad cells Quick Charger 2 4 hours Trickle Charger safe levell Field Fast Charger bof 6 Rn Ta Portable Charger input 1 20V 1 2V Multiple Charger up 3 Tx 5 Ru Completely Automatic STANDARD MODEL*179 Fitu4 6VRuand96VtxpacksPlusS5S&H Others available write call OneSpeed Dremel Tool Full variable-speed operation Retains on-off switch inside case Model 270 280 only Plus St sass H Special MonthAMA CLUBS J/6x 3 x 36.. 31 CAsk about AMA Club Discounts Price good until June 1 1986 minimum orders $10000 12020 Centralia Hawaiian Gardens CA 90716 1 Block East 605 between 91 & 405 Fwy213 8653220 June 1986 55 Phil Karafilis us Scale Complete Plans Set 3 Large Sheets esigfled TWO 12 CU FourStrokes Larger Beach D-18 s Set 00 $ 5O pu Sal Taibi Mike Taibi Quality e ice Mon Fri 8am -4pm PSI Stinson Voyagers transitional belicrank elevator control Installa tion would Improved upper cable run through another pul Icy too would rIght angles bell crank However worke6 OK way Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded shoit WHIP ANTENNA gives Thidden performance Less 7 ionit can mounted project front helicopter inside canopy virtually invisible RRAAA UGOEL PRODUCTS 23981 CRAFTSMAN RD218 VERNON ROAD CALABASAS CA 91302GREENVILLE PA 18125 818 992-0195 588-1321 stand Im truly sorry has stepped anyones toes such intent competitive fun everyoneunder simple first-time AMA guidance invite reaction realize lot detail left fill feel its basic thinking approach counts Local CDs should able run basics fill own blanks now encourage groups planning Elec tric meet consider offerings give tryyoull draw largest response possible because no outruled Please forward comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Query How readers would interest ed economy-quality reprints past MA Electric features columns make no promisesI need reaction first small pieces plywood epoxied fuselage cables will usually go directly horns rudder sometimes will have transit through another bellcrank pushrod elevator controls such cases keep mind cables pushrod should right angles bellcrank control surface neutral position same thing applies bellcrank pushrod servo end Voyager elevator system would efficient run upper cable through another single pulley located top bellcrank characteristic cable systems can tolerate misalignment rigid pushrod would doesnt pay take too much advantage fact Now weve got servos belleranks pulleys horns worked out its time think about linking together fishing leader bought fer rules crimping tool will come will quickly realize ferrules nothing short pieces brass tubing maybe nickelplated could make yourself Fine Thats exactly what did once feel right size tubing use purpose ferrule help make non-slipping loop end cable first slip ferrule onto cable Next feed cable through selected hole bellcrank control horn whatever Pull four six inches cable through feed end cable back through ferrule Push ferrule up close bellcrank leave large enough loop cable free movement Loop free end cable four six inches up over toward bellerank feed end back through ferrule again Check photo see what mean Now pull free end through tight can holding ferrule position near belicrank Crimp ferrule down cable crimping tool best crimp twice near end rather once middle Now clip off free end cable close ferrule now have ab solutely secure connection cable bellcrank Earlier mentioned putting cable through selected hole bellcrank select right hole Easy aid three simple rules first rule two cables always equal distances center bellcrank second rule spacing should equal both ends cable third rule cables should spaced far apart possible practice means cable runs bellcrank bellcrank go corresponding holes end spacing runs bellcranks control horns determined spacing horns final comment Dont overdo ten sion cables obviously have tight enough prevent slop control sur faces dont have sing like violin Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 prototype manageable subject Does have multi-bladed rotor head nose too short what about documentaton things should given plenty thought before sub ject chosen Documentation biggy dont have cant prove judges wonderful detailing didnt arrive via fantasyland So subject should have mini mum good three-view several quality col photographs showing surfaces pro totype good written description formation available libraries book stores businesses specialize docu mentation such Bob Bankas Scale Model ResearchContinued page 156 June 1986 155 Co Co 1 rn z 0 z 0 C 0 JJ 0 -D m I m 0 Q 0 -I CD C, 0 0 C 0 Cl 0 Co 01 0 N CD CO 0 Cii x 0 x N RC Helicopters/Jolly RC Giant Scale/Beckman Continued page 56 Continued page 55
Edition: Model Aviation - 1986/06
Page Numbers: 54, 55, 155
Radio Control Giant Scale Bob Beckman CABLE CONTROLS have inquir ies about hows whys cable control systems couldnt possibly cover whole subject column Ill try outline basics First lets take look advantages disadvantages involved primary advan tage high strength low weight pushrod system depends rigidity rod direction control surface deflection almost pushrod material available need rigidity pushing dictates larger massive piece would need ed handle force involved pulling deflect surface second advantage flexibility cable system can take almost path desire pushrod must have clear straight path servo control surfaces Next set up properly cable system helps isolate servo some con trol surface forces Another point models control cables scalelike pushrods important advantage just plain like working Out course few thorns bed roses people biggest thorn have never done dont know start hope column will blunt Next need materials fittings havent used before Ill cover go along greatest potential disadvantage some thing has happened yet either because Im very careful very lucky both Once cable system installed structure completed almost impossible rerun cable cable should break much likely should lose control end let slither back out reach real trouble Keep point mind plan implement installation Lets get some specifics First what use get first stop will sporting goods store What after some nylon-covered stranded steel fishing leader comes different sizes iden tified weight leader can support like use 30-lb-test leader Lighter 20-lb-test stuff would probably adequate purposes prefer working slightly larger material 20-lb leader does make beautiful non-stretchable trammel line Along leader want get supply proper size ferrules crimp ing tool Next going need bellcranks con trol horns cable pulleys can make yourself have right materials tools its cheaper easier get CB Associates Bob Siegelkoff 54 Model Aviation Action Bob Seigelkoffs AgCat sprays swath dust mixture baby powder flour field Morgan Hill CA fifth servo operates dust-hopper flapper CB Associates Inc makes tine line cable pulleys control horns belicrank Rug ged practical Giant Scale accessories make easy implement cable-control systems Heres secure ends cables belicrank control horn column has details Bobs Stinson Voyager used pulieys run servo installation Bobs rudder cables down side Piper Tomahawk modeis Trim adjust- fuselage elevator cables ments easily made whole opposite side Note pulleys mounting plate can lifted out mounted horizontally Final adjustment maintenance work system will take slack cables CB long-time Giant Scale enthusiast started using cable systems long time ago Since business making RC ac cessories designs makes what wants own models makes avail able rest us cant get local hobby shop still have local hobby shop look CB ads Model Aviation High Flight Now have line materials need can start planning installa tion can follow normal procedures mounting servos two differ ences First must use bellcranks make transition cables Second will have freedom locating servos because dont have worry about straight shot servo control surface pushrod Some months pictures show two different approaches mounting bellcranks common objective both cases mount bellcranks firmly can take static strain cables same time close enough servos can driven short pushrods Stinson Voyager Tomahwak models used A-in plywood plates mount both servos bellcranks necessary servo can removed simply after disconnecting pushrod bellcrank bellcranks secured 6-32 screws blind nuts bottom plate whole plate can removed leaving bellcranks hanging ends cables Bob Siegelkoff took other approach Grumman AgCat mounted bellcranks single horizontal axle Simple very neat model cables run directly through open fuselage needed run cables through pulleys down sides fuselage vertically-oriented bellcranks would have awkward Lets assume reason another cant simply run cables directly control surfaces Now will need appreciate CBs cable pulleys unit consists turned aluminum pulley molded glass-filled nylon mount combi nation designed cable captured between pulley fitting cable cannot slip off also can used singly stacked together form multiple pulleys Voyager used single pulleys direct rudder elevator cables sides fuselage double units lead cable pairs back tail solution problem mounting pulleys bolt Continued page 155 Phil used twin Zenoah G-28 engines jberglaSS Engine owlingS Available Edward Lloyd Mollywood Ave and 94602 415482-3206lOam-IpmPSTlpm-4pmEST WHEN YOU FORGETOUR UNITS REMEMBER Wet Cell & Gelled Cell Batteries Completely automatic operation Connect forget Pays itself eries last two three times longer Two models fit size batteries REGULAR MODEL$3995 field kit smallPlus $2 S & H electric boat batteriesSpecify 6 12 24V HEAVY DUTY MODEL$4995 sport winch large boat andPlus $2 505 & H electric power charging baneriesSpecify 6 1 2V CaRa Products PO Box 221 Canton SD 57013 605-987-5924 SASE o nomao Oeae qu e ed Balsa Spruce Plywood Kit Mfg match current prices now paying quality Open Public 40-60% Discounts RC System NiCd Batteries chargers need age Cycler prevent memory Tester Ito find bad cells Quick Charger 2 4 hours Trickle Charger safe levell Field Fast Charger bof 6 Rn Ta Portable Charger input 1 20V 1 2V Multiple Charger up 3 Tx 5 Ru Completely Automatic STANDARD MODEL*179 Fitu4 6VRuand96VtxpacksPlusS5S&H Others available write call OneSpeed Dremel Tool Full variable-speed operation Retains on-off switch inside case Model 270 280 only Plus St sass H Special MonthAMA CLUBS J/6x 3 x 36.. 31 CAsk about AMA Club Discounts Price good until June 1 1986 minimum orders $10000 12020 Centralia Hawaiian Gardens CA 90716 1 Block East 605 between 91 & 405 Fwy213 8653220 June 1986 55 Phil Karafilis us Scale Complete Plans Set 3 Large Sheets esigfled TWO 12 CU FourStrokes Larger Beach D-18 s Set 00 $ 5O pu Sal Taibi Mike Taibi Quality e ice Mon Fri 8am -4pm PSI Stinson Voyagers transitional belicrank elevator control Installa tion would Improved upper cable run through another pul Icy too would rIght angles bell crank However worke6 OK way Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded shoit WHIP ANTENNA gives Thidden performance Less 7 ionit can mounted project front helicopter inside canopy virtually invisible RRAAA UGOEL PRODUCTS 23981 CRAFTSMAN RD218 VERNON ROAD CALABASAS CA 91302GREENVILLE PA 18125 818 992-0195 588-1321 stand Im truly sorry has stepped anyones toes such intent competitive fun everyoneunder simple first-time AMA guidance invite reaction realize lot detail left fill feel its basic thinking approach counts Local CDs should able run basics fill own blanks now encourage groups planning Elec tric meet consider offerings give tryyoull draw largest response possible because no outruled Please forward comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Query How readers would interest ed economy-quality reprints past MA Electric features columns make no promisesI need reaction first small pieces plywood epoxied fuselage cables will usually go directly horns rudder sometimes will have transit through another bellcrank pushrod elevator controls such cases keep mind cables pushrod should right angles bellcrank control surface neutral position same thing applies bellcrank pushrod servo end Voyager elevator system would efficient run upper cable through another single pulley located top bellcrank characteristic cable systems can tolerate misalignment rigid pushrod would doesnt pay take too much advantage fact Now weve got servos belleranks pulleys horns worked out its time think about linking together fishing leader bought fer rules crimping tool will come will quickly realize ferrules nothing short pieces brass tubing maybe nickelplated could make yourself Fine Thats exactly what did once feel right size tubing use purpose ferrule help make non-slipping loop end cable first slip ferrule onto cable Next feed cable through selected hole bellcrank control horn whatever Pull four six inches cable through feed end cable back through ferrule Push ferrule up close bellcrank leave large enough loop cable free movement Loop free end cable four six inches up over toward bellerank feed end back through ferrule again Check photo see what mean Now pull free end through tight can holding ferrule position near belicrank Crimp ferrule down cable crimping tool best crimp twice near end rather once middle Now clip off free end cable close ferrule now have ab solutely secure connection cable bellcrank Earlier mentioned putting cable through selected hole bellcrank select right hole Easy aid three simple rules first rule two cables always equal distances center bellcrank second rule spacing should equal both ends cable third rule cables should spaced far apart possible practice means cable runs bellcrank bellcrank go corresponding holes end spacing runs bellcranks control horns determined spacing horns final comment Dont overdo ten sion cables obviously have tight enough prevent slop control sur faces dont have sing like violin Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 prototype manageable subject Does have multi-bladed rotor head nose too short what about documentaton things should given plenty thought before sub ject chosen Documentation biggy dont have cant prove judges wonderful detailing didnt arrive via fantasyland So subject should have mini mum good three-view several quality col photographs showing surfaces pro totype good written description formation available libraries book stores businesses specialize docu mentation such Bob Bankas Scale Model ResearchContinued page 156 June 1986 155 Co Co 1 rn z 0 z 0 C 0 JJ 0 -D m I m 0 Q 0 -I CD C, 0 0 C 0 Cl 0 Co 01 0 N CD CO 0 Cii x 0 x N RC Helicopters/Jolly RC Giant Scale/Beckman Continued page 56 Continued page 55
Edition: Model Aviation - 1986/06
Page Numbers: 54, 55, 155
Radio Control Giant Scale Bob Beckman CABLE CONTROLS have inquir ies about hows whys cable control systems couldnt possibly cover whole subject column Ill try outline basics First lets take look advantages disadvantages involved primary advan tage high strength low weight pushrod system depends rigidity rod direction control surface deflection almost pushrod material available need rigidity pushing dictates larger massive piece would need ed handle force involved pulling deflect surface second advantage flexibility cable system can take almost path desire pushrod must have clear straight path servo control surfaces Next set up properly cable system helps isolate servo some con trol surface forces Another point models control cables scalelike pushrods important advantage just plain like working Out course few thorns bed roses people biggest thorn have never done dont know start hope column will blunt Next need materials fittings havent used before Ill cover go along greatest potential disadvantage some thing has happened yet either because Im very careful very lucky both Once cable system installed structure completed almost impossible rerun cable cable should break much likely should lose control end let slither back out reach real trouble Keep point mind plan implement installation Lets get some specifics First what use get first stop will sporting goods store What after some nylon-covered stranded steel fishing leader comes different sizes iden tified weight leader can support like use 30-lb-test leader Lighter 20-lb-test stuff would probably adequate purposes prefer working slightly larger material 20-lb leader does make beautiful non-stretchable trammel line Along leader want get supply proper size ferrules crimp ing tool Next going need bellcranks con trol horns cable pulleys can make yourself have right materials tools its cheaper easier get CB Associates Bob Siegelkoff 54 Model Aviation Action Bob Seigelkoffs AgCat sprays swath dust mixture baby powder flour field Morgan Hill CA fifth servo operates dust-hopper flapper CB Associates Inc makes tine line cable pulleys control horns belicrank Rug ged practical Giant Scale accessories make easy implement cable-control systems Heres secure ends cables belicrank control horn column has details Bobs Stinson Voyager used pulieys run servo installation Bobs rudder cables down side Piper Tomahawk modeis Trim adjust- fuselage elevator cables ments easily made whole opposite side Note pulleys mounting plate can lifted out mounted horizontally Final adjustment maintenance work system will take slack cables CB long-time Giant Scale enthusiast started using cable systems long time ago Since business making RC ac cessories designs makes what wants own models makes avail able rest us cant get local hobby shop still have local hobby shop look CB ads Model Aviation High Flight Now have line materials need can start planning installa tion can follow normal procedures mounting servos two differ ences First must use bellcranks make transition cables Second will have freedom locating servos because dont have worry about straight shot servo control surface pushrod Some months pictures show two different approaches mounting bellcranks common objective both cases mount bellcranks firmly can take static strain cables same time close enough servos can driven short pushrods Stinson Voyager Tomahwak models used A-in plywood plates mount both servos bellcranks necessary servo can removed simply after disconnecting pushrod bellcrank bellcranks secured 6-32 screws blind nuts bottom plate whole plate can removed leaving bellcranks hanging ends cables Bob Siegelkoff took other approach Grumman AgCat mounted bellcranks single horizontal axle Simple very neat model cables run directly through open fuselage needed run cables through pulleys down sides fuselage vertically-oriented bellcranks would have awkward Lets assume reason another cant simply run cables directly control surfaces Now will need appreciate CBs cable pulleys unit consists turned aluminum pulley molded glass-filled nylon mount combi nation designed cable captured between pulley fitting cable cannot slip off also can used singly stacked together form multiple pulleys Voyager used single pulleys direct rudder elevator cables sides fuselage double units lead cable pairs back tail solution problem mounting pulleys bolt Continued page 155 Phil used twin Zenoah G-28 engines jberglaSS Engine owlingS Available Edward Lloyd Mollywood Ave and 94602 415482-3206lOam-IpmPSTlpm-4pmEST WHEN YOU FORGETOUR UNITS REMEMBER Wet Cell & Gelled Cell Batteries Completely automatic operation Connect forget Pays itself eries last two three times longer Two models fit size batteries REGULAR MODEL$3995 field kit smallPlus $2 S & H electric boat batteriesSpecify 6 12 24V HEAVY DUTY MODEL$4995 sport winch large boat andPlus $2 505 & H electric power charging baneriesSpecify 6 1 2V CaRa Products PO Box 221 Canton SD 57013 605-987-5924 SASE o nomao Oeae qu e ed Balsa Spruce Plywood Kit Mfg match current prices now paying quality Open Public 40-60% Discounts RC System NiCd Batteries chargers need age Cycler prevent memory Tester Ito find bad cells Quick Charger 2 4 hours Trickle Charger safe levell Field Fast Charger bof 6 Rn Ta Portable Charger input 1 20V 1 2V Multiple Charger up 3 Tx 5 Ru Completely Automatic STANDARD MODEL*179 Fitu4 6VRuand96VtxpacksPlusS5S&H Others available write call OneSpeed Dremel Tool Full variable-speed operation Retains on-off switch inside case Model 270 280 only Plus St sass H Special MonthAMA CLUBS J/6x 3 x 36.. 31 CAsk about AMA Club Discounts Price good until June 1 1986 minimum orders $10000 12020 Centralia Hawaiian Gardens CA 90716 1 Block East 605 between 91 & 405 Fwy213 8653220 June 1986 55 Phil Karafilis us Scale Complete Plans Set 3 Large Sheets esigfled TWO 12 CU FourStrokes Larger Beach D-18 s Set 00 $ 5O pu Sal Taibi Mike Taibi Quality e ice Mon Fri 8am -4pm PSI Stinson Voyagers transitional belicrank elevator control Installa tion would Improved upper cable run through another pul Icy too would rIght angles bell crank However worke6 OK way Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded shoit WHIP ANTENNA gives Thidden performance Less 7 ionit can mounted project front helicopter inside canopy virtually invisible RRAAA UGOEL PRODUCTS 23981 CRAFTSMAN RD218 VERNON ROAD CALABASAS CA 91302GREENVILLE PA 18125 818 992-0195 588-1321 stand Im truly sorry has stepped anyones toes such intent competitive fun everyoneunder simple first-time AMA guidance invite reaction realize lot detail left fill feel its basic thinking approach counts Local CDs should able run basics fill own blanks now encourage groups planning Elec tric meet consider offerings give tryyoull draw largest response possible because no outruled Please forward comment question SASE please author Bob Kopski 25 West End Dr Lansdale PA 19446 Query How readers would interest ed economy-quality reprints past MA Electric features columns make no promisesI need reaction first small pieces plywood epoxied fuselage cables will usually go directly horns rudder sometimes will have transit through another bellcrank pushrod elevator controls such cases keep mind cables pushrod should right angles bellcrank control surface neutral position same thing applies bellcrank pushrod servo end Voyager elevator system would efficient run upper cable through another single pulley located top bellcrank characteristic cable systems can tolerate misalignment rigid pushrod would doesnt pay take too much advantage fact Now weve got servos belleranks pulleys horns worked out its time think about linking together fishing leader bought fer rules crimping tool will come will quickly realize ferrules nothing short pieces brass tubing maybe nickelplated could make yourself Fine Thats exactly what did once feel right size tubing use purpose ferrule help make non-slipping loop end cable first slip ferrule onto cable Next feed cable through selected hole bellcrank control horn whatever Pull four six inches cable through feed end cable back through ferrule Push ferrule up close bellcrank leave large enough loop cable free movement Loop free end cable four six inches up over toward bellerank feed end back through ferrule again Check photo see what mean Now pull free end through tight can holding ferrule position near belicrank Crimp ferrule down cable crimping tool best crimp twice near end rather once middle Now clip off free end cable close ferrule now have ab solutely secure connection cable bellcrank Earlier mentioned putting cable through selected hole bellcrank select right hole Easy aid three simple rules first rule two cables always equal distances center bellcrank second rule spacing should equal both ends cable third rule cables should spaced far apart possible practice means cable runs bellcrank bellcrank go corresponding holes end spacing runs bellcranks control horns determined spacing horns final comment Dont overdo ten sion cables obviously have tight enough prevent slop control sur faces dont have sing like violin Bob Beckman 8248 Holly Grove Ct Manassas VA 22110 prototype manageable subject Does have multi-bladed rotor head nose too short what about documentaton things should given plenty thought before sub ject chosen Documentation biggy dont have cant prove judges wonderful detailing didnt arrive via fantasyland So subject should have mini mum good three-view several quality col photographs showing surfaces pro totype good written description formation available libraries book stores businesses specialize docu mentation such Bob Bankas Scale Model ResearchContinued page 156 June 1986 155 Co Co 1 rn z 0 z 0 C 0 JJ 0 -D m I m 0 Q 0 -I CD C, 0 0 C 0 Cl 0 Co 01 0 N CD CO 0 Cii x 0 x N RC Helicopters/Jolly RC Giant Scale/Beckman Continued page 56 Continued page 55