CONTROL LINE SCALE 11mm kjmfffl Ii 4 iYz I 1 BUILDING WITH PAPER last months column introduced Ken Longs approach scratch-building Control Line CL Scale model using readily available corrugated cardboard card stock material month will provide some ideas construction Ken told two basic types fuselage construction work well paper cross frame box frame purposes column Ill assume have full-size set plans airplane modeled Stanley knife box knife best cutting straight lines long sweeping curves XActoTM knife #11 blade cuts well sharp curves Scissors good cutting corrugated material squeeze fluted edges material cut makes poor alignment gluing putting parts together cross frame fuselage made cutting full-size side-view piece profileincluding rudderof heavy corrugated paper box material cut full-length full-size top view top view cut half lengthwise reduced width removing thickness side-view material center Partition-cut former halves slotting halfway slot topview pieces half-way through opposite way fuselage parts can assembled glued together box frame fuselage made calculating four points rectangle would bisect firewall nose former calculate four points rectangle would bisect tail former usually last former just before rudder aircraft Draw straight lines points front back cut out top bottom two sides heavy corrugated paper box material Glue parts together making sure unit square forms box frame foundation upon formers can added sides top bottom either type fuselage construction may need install additional formers paper construction formers approximately two inches apart would right spacing distance helps prevent crimping denting paper covering plan has former spacing about three inches apart should add formers between Wing construction using paper materials basically same construction using balsa ribs spars However paper spars especially main spars need thicker customary heavy plywood spars found model kits Paper spars should made laminating two possibly three thicknesses corrugated box material Rib spacing should no two inches apart may find necessary add ribs shown regular plan layouts Spars ribs made heavy corrugated material 250-350 pound test stock least some point wing past area wing-mounted landing gear would keep spars strong possible deep-slot ribs shallow-slot main spar ribs mounted Once beyond landing gear mounting area ribs can made lighter corrugated material Rudder stabilizer elevator constructed much same mannerby cutting out flat piece light corrugated material shape structure adding top bottom half ribs structure covered card stock material approach should work well structures half-inch thick models scale such thickness less halfinch may necessary add balsa light plywood stiffeners prevent warping An alternative smaller scale structures might cut out shape sand basic rudder stabilizer etc out balsa cover structure light card stock Because difficulty using shaping cardboard material tips wing rudder stabilizer elevator structures parts will made balsa block Ken Long uses ElmersTM Glue-All applying card stock covering Continued page 138 October 1998 133 II .iiiIj-jTh BOX FRAME Ken Longs Sport Scale Stuka Ju 87Ds fuselage construction Stukas engine mounted corrugated box material strengthened Card stock covering pre-installed surface detail epoxy Its essential fuelproof fuel tank engine compartment airplane set up turn same way Setting handle vertical position sounds very simple may have noticed adjusting new set lines minute variations neutral tend compensated subconsciously Indeed model specifically set handle what looked awkward up position airplane flight handle properly set particular airplane/handle always took several flights work back because handle position might have work particular setting get best feel strive position very close vertical will give optimum position base trim much same leveling wings start eliminating variations now can affect trimming program can guarantee go through trim process will have honest trim possible Thus far discussion has focused strictly physical position handle comply suggestions Ive made can simply adjust length either line basic handle has feature After youve flown setting few flights will naturally become accustomed way feels start become aware certain characteristics model airplane might tend fly inverted lower four-feet limit fly bit higher After upright can issue slight compensations youthe fliermake adjustment youre after very small experience/feel things once you will understand adjustment take care situation slight pull down line shorten say /32 inch Fly try see what effect ballpark model should settle slightly higher inverted flight Remember very fine adjustment Im fine adjustments other capabilities exist some handles Thumb wheels give ability make extremely fine adjustments flight can valuable now can look next levelthe pressure required handle turn airplane can last step extracting best trim Before look acquiring handle capability should feel comfortable basic handle having flown basic handle will probably want step up next level source Brodak s Distributing Company 100 Park Ave Carmichaels PA 15320 Tel 412 966-2726 handles come standard expert XPA expert series quality excellent using thumb wheels understand very fine adjustment discussion Im going exclude post lengths overhang also adjustable thumb wheels Im after equalizing pressure controls effect movement will take less turn experience change rotate appropriate wheel see affects feel controls its first time try wheel direction no magic can same thing thumb wheels can cable length adjustment However interchangeable because too much thumb wheel can angle bar front handle causing unequal post length changes linearity control input Its best use fine adjustment keep bar same angle basic handlevertical discussion should give some insight making airplane work up its potential Dont reluctant work adjustments can try fun exploring CL ScaleIBoss Continued page 133 overall structure 5- 30-minute epoxy areas requiring stiffening additional strength Epoxy used couple ways first firewall construction mounting engine landing gear servos bellcranks other place would use plywood hardwood can make equivalent plywood hardwood laminating heavy corrugated material mix batch 30-minute epoxy pour open flute ends take 1/s-inchthick diameter wire piece coat hanger will push epoxy flutes twirling action will put coating inside paper material adding considerable strength ultimate strengthening fill flutes solid epoxy needed fully hardened can drilled mounting bolts youre mind fill corrugated material epoxy can epoxy plywood hardwood mounting servos bellcranks etc second important use epoxy glues coat entire area paper other type construction model would come contact fuel have covered considerable amount month Next month Ill talk about covering models structure detailing Ill leave Elmers paper white glue until Wanted anyone out would like part old McCoy 60 AJ Hetzel Jr wants fly New Items As has done times before Randy Smith Aero Products has introduced item help competitor quest perfection time focus wonderful precision CNC spinners years has several kinds available two-inch types profiled Classic Old Veco Needle Nose available aluminum magnesium magnesium special purpose very light expensive Randys revised item combines thinned aluminum shell magnesium backplate/nose cone re-engineering provides equivalent weight allmagnesium better strength handling try quality products contact Randy Aero Products 1880 Scenic Hwy Snellville GA 30278 Tel 770 979-2035 Till next time Send pictures theres topic youd like see discussed let know parts engine would part please contact AJ 130 Seminole Ave Norwood PA 19074-1127 Warbird Tech Series have added recent great books aviation libraryvolumes 12 13 cover North American B-25 Mitchell Douglas A-i Skyraider book contains 100 pages crammed full history black-and-white photos four pages color photos some great drawings photos cockpit detail B-25 Mitchell volume features South Pacific Strafers European bombers 75mm nose cannons gun turrets waist mounts Tokyo Raiders some nose art A- 1 Skyraider book has Vietnam kills dive torpedo versions tech manual drawings battle damage photos gun ordnance loadings cockpits crew stations Warbird Tech series books some best have seen use scale builder great documenting Sport Scale entry good start Precision model books published Specialty Press 11481 Kost Dam Rd North Branch MN 55056 US 612 583-3239 series distributed UK Europe Airlife Publishing Ltd cost $1695 per volume plus shipping handling obtained copies Zenith Books 729 Prospect Ave Osceola WI 54020 800 826-6600 Please send ideas notice upcoming CL Scale events contest reports especially photos CL Scale activity address very top column Model Aviation
Edition: Model Aviation - 1998/10
Page Numbers: 133, 138
Edition: Model Aviation - 1998/10
Page Numbers: 133, 138
CONTROL LINE SCALE 11mm kjmfffl Ii 4 iYz I 1 BUILDING WITH PAPER last months column introduced Ken Longs approach scratch-building Control Line CL Scale model using readily available corrugated cardboard card stock material month will provide some ideas construction Ken told two basic types fuselage construction work well paper cross frame box frame purposes column Ill assume have full-size set plans airplane modeled Stanley knife box knife best cutting straight lines long sweeping curves XActoTM knife #11 blade cuts well sharp curves Scissors good cutting corrugated material squeeze fluted edges material cut makes poor alignment gluing putting parts together cross frame fuselage made cutting full-size side-view piece profileincluding rudderof heavy corrugated paper box material cut full-length full-size top view top view cut half lengthwise reduced width removing thickness side-view material center Partition-cut former halves slotting halfway slot topview pieces half-way through opposite way fuselage parts can assembled glued together box frame fuselage made calculating four points rectangle would bisect firewall nose former calculate four points rectangle would bisect tail former usually last former just before rudder aircraft Draw straight lines points front back cut out top bottom two sides heavy corrugated paper box material Glue parts together making sure unit square forms box frame foundation upon formers can added sides top bottom either type fuselage construction may need install additional formers paper construction formers approximately two inches apart would right spacing distance helps prevent crimping denting paper covering plan has former spacing about three inches apart should add formers between Wing construction using paper materials basically same construction using balsa ribs spars However paper spars especially main spars need thicker customary heavy plywood spars found model kits Paper spars should made laminating two possibly three thicknesses corrugated box material Rib spacing should no two inches apart may find necessary add ribs shown regular plan layouts Spars ribs made heavy corrugated material 250-350 pound test stock least some point wing past area wing-mounted landing gear would keep spars strong possible deep-slot ribs shallow-slot main spar ribs mounted Once beyond landing gear mounting area ribs can made lighter corrugated material Rudder stabilizer elevator constructed much same mannerby cutting out flat piece light corrugated material shape structure adding top bottom half ribs structure covered card stock material approach should work well structures half-inch thick models scale such thickness less halfinch may necessary add balsa light plywood stiffeners prevent warping An alternative smaller scale structures might cut out shape sand basic rudder stabilizer etc out balsa cover structure light card stock Because difficulty using shaping cardboard material tips wing rudder stabilizer elevator structures parts will made balsa block Ken Long uses ElmersTM Glue-All applying card stock covering Continued page 138 October 1998 133 II .iiiIj-jTh BOX FRAME Ken Longs Sport Scale Stuka Ju 87Ds fuselage construction Stukas engine mounted corrugated box material strengthened Card stock covering pre-installed surface detail epoxy Its essential fuelproof fuel tank engine compartment airplane set up turn same way Setting handle vertical position sounds very simple may have noticed adjusting new set lines minute variations neutral tend compensated subconsciously Indeed model specifically set handle what looked awkward up position airplane flight handle properly set particular airplane/handle always took several flights work back because handle position might have work particular setting get best feel strive position very close vertical will give optimum position base trim much same leveling wings start eliminating variations now can affect trimming program can guarantee go through trim process will have honest trim possible Thus far discussion has focused strictly physical position handle comply suggestions Ive made can simply adjust length either line basic handle has feature After youve flown setting few flights will naturally become accustomed way feels start become aware certain characteristics model airplane might tend fly inverted lower four-feet limit fly bit higher After upright can issue slight compensations youthe fliermake adjustment youre after very small experience/feel things once you will understand adjustment take care situation slight pull down line shorten say /32 inch Fly try see what effect ballpark model should settle slightly higher inverted flight Remember very fine adjustment Im fine adjustments other capabilities exist some handles Thumb wheels give ability make extremely fine adjustments flight can valuable now can look next levelthe pressure required handle turn airplane can last step extracting best trim Before look acquiring handle capability should feel comfortable basic handle having flown basic handle will probably want step up next level source Brodak s Distributing Company 100 Park Ave Carmichaels PA 15320 Tel 412 966-2726 handles come standard expert XPA expert series quality excellent using thumb wheels understand very fine adjustment discussion Im going exclude post lengths overhang also adjustable thumb wheels Im after equalizing pressure controls effect movement will take less turn experience change rotate appropriate wheel see affects feel controls its first time try wheel direction no magic can same thing thumb wheels can cable length adjustment However interchangeable because too much thumb wheel can angle bar front handle causing unequal post length changes linearity control input Its best use fine adjustment keep bar same angle basic handlevertical discussion should give some insight making airplane work up its potential Dont reluctant work adjustments can try fun exploring CL ScaleIBoss Continued page 133 overall structure 5- 30-minute epoxy areas requiring stiffening additional strength Epoxy used couple ways first firewall construction mounting engine landing gear servos bellcranks other place would use plywood hardwood can make equivalent plywood hardwood laminating heavy corrugated material mix batch 30-minute epoxy pour open flute ends take 1/s-inchthick diameter wire piece coat hanger will push epoxy flutes twirling action will put coating inside paper material adding considerable strength ultimate strengthening fill flutes solid epoxy needed fully hardened can drilled mounting bolts youre mind fill corrugated material epoxy can epoxy plywood hardwood mounting servos bellcranks etc second important use epoxy glues coat entire area paper other type construction model would come contact fuel have covered considerable amount month Next month Ill talk about covering models structure detailing Ill leave Elmers paper white glue until Wanted anyone out would like part old McCoy 60 AJ Hetzel Jr wants fly New Items As has done times before Randy Smith Aero Products has introduced item help competitor quest perfection time focus wonderful precision CNC spinners years has several kinds available two-inch types profiled Classic Old Veco Needle Nose available aluminum magnesium magnesium special purpose very light expensive Randys revised item combines thinned aluminum shell magnesium backplate/nose cone re-engineering provides equivalent weight allmagnesium better strength handling try quality products contact Randy Aero Products 1880 Scenic Hwy Snellville GA 30278 Tel 770 979-2035 Till next time Send pictures theres topic youd like see discussed let know parts engine would part please contact AJ 130 Seminole Ave Norwood PA 19074-1127 Warbird Tech Series have added recent great books aviation libraryvolumes 12 13 cover North American B-25 Mitchell Douglas A-i Skyraider book contains 100 pages crammed full history black-and-white photos four pages color photos some great drawings photos cockpit detail B-25 Mitchell volume features South Pacific Strafers European bombers 75mm nose cannons gun turrets waist mounts Tokyo Raiders some nose art A- 1 Skyraider book has Vietnam kills dive torpedo versions tech manual drawings battle damage photos gun ordnance loadings cockpits crew stations Warbird Tech series books some best have seen use scale builder great documenting Sport Scale entry good start Precision model books published Specialty Press 11481 Kost Dam Rd North Branch MN 55056 US 612 583-3239 series distributed UK Europe Airlife Publishing Ltd cost $1695 per volume plus shipping handling obtained copies Zenith Books 729 Prospect Ave Osceola WI 54020 800 826-6600 Please send ideas notice upcoming CL Scale events contest reports especially photos CL Scale activity address very top column Model Aviation
