SPECIAL FLIGHT ROCKETRY THIS IS THE BEGINNINGPart series articles guidance instruction making fiberglass nose cones body tubes Watching someone doing best way learn make fiberglass rockets Without luxury now will bit difficult practice success will achieved Most photos will appear article include 12-year-old daughter Julie can make reasonably good body tube anyone can fairness does have trouble nose cones list materials needed Fiberglass clothshould no heavier e per yard Try get material Silene-finished opposed Volene finish causes resin mixture penetrate fibers deeply helps make stronger body Although nothing wrong Volene finish Silene what industry uses today Cutting cloth easy necessary tools include metal straightedge sharp razor blade pattern Resins two choices hereepoxy polyester resins use fiveminute type epoxy will able take heat ejection charge molecular bond five-minute epoxies softens about 1250F lot spacemodelers know prefer use finishing type epoxies because relatively thin viscosity quicker penetration fiberglass cloth epoxy becomes thin through use reactive diluent catalyzes similarly regular epoxy resin amount diluent added cuts strength tube almost 50% Shell Chemical Company makes epoxy resin called EPON 828 finishing type called EPON 815 828 diluent added prefer use thicker type epoxy thin consistency want little solvent alcohol alcohol quickly evaporates leaving stronger resin behind attempt made create epoxy resin castings use finishing resins full strength use alcohol will become trapped inside epoxy cause warping later will problem body tubes because thickness material used few thousandths inch alcohol will evaporate first layer cloth before second layer wrapped finishing epoxies developed casting epoxies what should used castings Whichever resin selected gel time should less 30 minutes Adding alcohol resin will extend gel time about 25% epoxy used fiberglass shape should removed form ovencured about 2000F hour heat oven 2000 heat indicator light goes out shut off oven open door pop model inside mount model wooden dowel keep off grill air heat will soften epoxy temperature drops form will retain whatever shape left laid flat cookie sheet heat will flatten rocket will oval have also learned hardener key finished product darker hardener adhesive qualities epoxy mixture will have lighter color stiffer finished product will correct proportions used Using slightly less hardener will produce stiffer product will give flexible finished product manufacturer will provide report proportions use achieve desired result precision two parts epoxy should weighed rather eyeballed Polyester resins also come both types finishing regular Polyester resins strong epoxy resins begin Polyester does set up quicker Using practice allows models made day would possible using epoxy Good models can made polyester resins using regular resin will strong will sufficient weight finished model about same polyester epoxy Alco hol can used thinner too poly ester used must mixed paper cup plastic cup because resin full solvents will dissolve plastic Try use wax-covered paper cup because solvents will also dissolve wax use old liquid soap pump containers dispensing both epoxy polyester resins Release agents release agent must used mold remove hardened fiberglass mold wax-based agent used epoxy used silicone used polyester used kinds mold releases available trick find Crown Products Illinois makes complete line different kinds mold releases phone number 800 766-7655 Call Crown Products ask name dealer nearest carries mold release use three Crowns products mold releases aerosol #3270 Ready Release use aluminum steel forms epoxy releases use #3045 five-percent Silicone Mold Release aluminum steel polyester resins plastic formsDekin nylonI use #6075 Dry Film Lubricant Getting finished shape off mold still can problem dont know tricks Using Crowns #3072 Ready Release form wax must melted remove fiberglass way fill kitchen sink enough hot water cover form inch water After about 10 minutes slowly remove shell form because wax has melted form tapered nose cone being removed vacuum may created between form nose cone causing wall collapse happens work quickly possible remove nose cone form drop back hot water reshape will hold shape cools big trick using wax mold release putting enough form Ready Release spray form three times letting dry between spray before start using fiberglass use 5% Silicone Mold Release just follow instructions can use plastic forms just spray Dry Film Lubricant either epoxy polyester hardens pop forms freezer plastic will shrink enough finished article will fall off form Delrin works little better nylon freezer Forms Steel aluminum plastic materials commonly used molds Steel best number reasons greatest reason can take rough handling however can also rust unless use stainless steel Aluminum okay can become beat up quickly will wear out cleaning lot faster steel Delrin nylon Teflon good plastics nose cones short Continued page 111 US scale modelers will appreciate help offered Scale Team Racing unique event Queen City club Cincinnati Ohio discussed last months column event full-bodied models racing planes Golden Age racers can entered going through some recent news letters came across ad source three-view drawings famous American racing planes thought would pass information might interested source American Air Racing Association has three-views racing planes span years 1929 1938 includes such planes Brown B-2 Miss Los Angeles various models Keith Rider Laird Super Solution Gee Bee R-l Chester Jeep others Most drawings offered 3/4-inch scale interested write Rudy Profant 4060 W 158th St Cleveland OH 135 item found Wing Tips newsletter Mid-Hudson Modelmasters Workshop hints Bob Fun Orbiting Eagles Omaha back us month RC ScaIeIToy Continued page 109 markings infonnation Want exact dimensions wing strut mount Theyre Would like see bungee cord tall skid attached rear fuselage No problem As read several full-scale aircraft builders constructing full-scale man-carrying flying replicas original World War ships Replicraft drawing sets theyre good No joke friends youre WW aircraft buck stops right addition Jims 33- x 77-inch drawing sheets complete documentation packs also available Replicraft several WW aeroplanes packages include threefive-view both sides front top bottom drawings color chips chip cards properly explain RocketrylKryway Continued page 101 body tubes release easily warp after good way practice spray smooth brass rod tube lightly two three times mold release cover fiberglass cloth resin choice first step carefully cut cloth Next measure epoxy weight electronic scale Put line epoxy dots great workshop tips tool modeler needs very good yardstick workshop free wooden get grand opening local hardware store metal Most wooden rulers straight use guide cutting balsa youre likely cut ruler well balsa below steel aluminum ruler best However metal rulers slick difficult hold place apt move making cuts simple solution Using little rubber contact cement 3M 77 spray works well attach several one-inch squares medium-grit sandpaper back ruler Now lay wood cut will stay place item found Orbiting Eagles newsletter Please send ideas notices upcoming CL Scale events contest reports especially photos CL Scale activity address very top column flying no accident procedure used verify color ensuring competitors fair treatment contest judges Send SASE Jim Kiger Replicraft 1400 Gomes Rd Fremont CA 94538 complete listing price sheet entering World War aeroplane Top Gun AMA National Championships US Scale Masters immediate plans Id seriously suggest build model set Replicrafts drawings suffer likeiThood being severely humiliated someone did Now can find someone machine accurately scaled-down 130-hp Clerget 9B rotary engine price can afford Next issue Ill have finally decided next build-along project youre enjoying aspect column start putting few dollars aside next kit Until build straight fly safely Ill talk again ss mandrel epoxy down carefully line up cloth straight possible put down form epoxy will grab cloth hold Try get straight first time Apply epoxy cloth acid brush trick have cloth wrinide fold onto itself does will have hole apply sandpaper ends Part AMA RF M*TEJ -l SAlES AND SERVICE FOR EVERVTIID4O fl/C ERAFr MIDWEST INC 1i EAST ILAflJ NORTHYILLB MICHIGAI 48157 3133480085 FAX 3133484175 $2995 #923/72 72Mhz #923/75 75Mhz #923/53 53Mhz #923/50 50Mhz #923/27 27Mhz SMALL SIZE X 100 X 100 SHOWS ANTENNAS RFOUTPUT FITS ALL DIAMETER ANTENNAS WORKS WITH AM FM OR PCM SIMPLE SNAP-ON MOUNTING REVERSE M*TE Servo reversing module fits between Rx Servo Adjusts/sets neutral reverses servo direction Supplied wires add servo leads $1995 grami*r SAB foi] ACE* AIRTRONICS* ARISTO RAFT CIRRUS EK EUTABA HEATHKIT HITEC* HOBBY SHACK JR* KLINE* KG PROPO* KRAFT* NOVAK PRO LINE RCD* ROYAL TOWER EJOBBIES WORLD ENGINES ETC. * FACTORY TRAINED ANIJ 4UTHORIZED RCMA #21 PRODUCTS FOR T @CDIUh UnflEl PU Complete Line Exhaust Systems Tuned Pipes Muffled Tuned Pipes Headers uri Mufflers 8 Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems UnsurpaSa W k.1ghin h Pfomiance September 1993 111
Edition: Model Aviation - 1993/09
Page Numbers: 100, 101, 111
SPECIAL FLIGHT ROCKETRY THIS IS THE BEGINNINGPart series articles guidance instruction making fiberglass nose cones body tubes Watching someone doing best way learn make fiberglass rockets Without luxury now will bit difficult practice success will achieved Most photos will appear article include 12-year-old daughter Julie can make reasonably good body tube anyone can fairness does have trouble nose cones list materials needed Fiberglass clothshould no heavier e per yard Try get material Silene-finished opposed Volene finish causes resin mixture penetrate fibers deeply helps make stronger body Although nothing wrong Volene finish Silene what industry uses today Cutting cloth easy necessary tools include metal straightedge sharp razor blade pattern Resins two choices hereepoxy polyester resins use fiveminute type epoxy will able take heat ejection charge molecular bond five-minute epoxies softens about 1250F lot spacemodelers know prefer use finishing type epoxies because relatively thin viscosity quicker penetration fiberglass cloth epoxy becomes thin through use reactive diluent catalyzes similarly regular epoxy resin amount diluent added cuts strength tube almost 50% Shell Chemical Company makes epoxy resin called EPON 828 finishing type called EPON 815 828 diluent added prefer use thicker type epoxy thin consistency want little solvent alcohol alcohol quickly evaporates leaving stronger resin behind attempt made create epoxy resin castings use finishing resins full strength use alcohol will become trapped inside epoxy cause warping later will problem body tubes because thickness material used few thousandths inch alcohol will evaporate first layer cloth before second layer wrapped finishing epoxies developed casting epoxies what should used castings Whichever resin selected gel time should less 30 minutes Adding alcohol resin will extend gel time about 25% epoxy used fiberglass shape should removed form ovencured about 2000F hour heat oven 2000 heat indicator light goes out shut off oven open door pop model inside mount model wooden dowel keep off grill air heat will soften epoxy temperature drops form will retain whatever shape left laid flat cookie sheet heat will flatten rocket will oval have also learned hardener key finished product darker hardener adhesive qualities epoxy mixture will have lighter color stiffer finished product will correct proportions used Using slightly less hardener will produce stiffer product will give flexible finished product manufacturer will provide report proportions use achieve desired result precision two parts epoxy should weighed rather eyeballed Polyester resins also come both types finishing regular Polyester resins strong epoxy resins begin Polyester does set up quicker Using practice allows models made day would possible using epoxy Good models can made polyester resins using regular resin will strong will sufficient weight finished model about same polyester epoxy Alco hol can used thinner too poly ester used must mixed paper cup plastic cup because resin full solvents will dissolve plastic Try use wax-covered paper cup because solvents will also dissolve wax use old liquid soap pump containers dispensing both epoxy polyester resins Release agents release agent must used mold remove hardened fiberglass mold wax-based agent used epoxy used silicone used polyester used kinds mold releases available trick find Crown Products Illinois makes complete line different kinds mold releases phone number 800 766-7655 Call Crown Products ask name dealer nearest carries mold release use three Crowns products mold releases aerosol #3270 Ready Release use aluminum steel forms epoxy releases use #3045 five-percent Silicone Mold Release aluminum steel polyester resins plastic formsDekin nylonI use #6075 Dry Film Lubricant Getting finished shape off mold still can problem dont know tricks Using Crowns #3072 Ready Release form wax must melted remove fiberglass way fill kitchen sink enough hot water cover form inch water After about 10 minutes slowly remove shell form because wax has melted form tapered nose cone being removed vacuum may created between form nose cone causing wall collapse happens work quickly possible remove nose cone form drop back hot water reshape will hold shape cools big trick using wax mold release putting enough form Ready Release spray form three times letting dry between spray before start using fiberglass use 5% Silicone Mold Release just follow instructions can use plastic forms just spray Dry Film Lubricant either epoxy polyester hardens pop forms freezer plastic will shrink enough finished article will fall off form Delrin works little better nylon freezer Forms Steel aluminum plastic materials commonly used molds Steel best number reasons greatest reason can take rough handling however can also rust unless use stainless steel Aluminum okay can become beat up quickly will wear out cleaning lot faster steel Delrin nylon Teflon good plastics nose cones short Continued page 111 US scale modelers will appreciate help offered Scale Team Racing unique event Queen City club Cincinnati Ohio discussed last months column event full-bodied models racing planes Golden Age racers can entered going through some recent news letters came across ad source three-view drawings famous American racing planes thought would pass information might interested source American Air Racing Association has three-views racing planes span years 1929 1938 includes such planes Brown B-2 Miss Los Angeles various models Keith Rider Laird Super Solution Gee Bee R-l Chester Jeep others Most drawings offered 3/4-inch scale interested write Rudy Profant 4060 W 158th St Cleveland OH 135 item found Wing Tips newsletter Mid-Hudson Modelmasters Workshop hints Bob Fun Orbiting Eagles Omaha back us month RC ScaIeIToy Continued page 109 markings infonnation Want exact dimensions wing strut mount Theyre Would like see bungee cord tall skid attached rear fuselage No problem As read several full-scale aircraft builders constructing full-scale man-carrying flying replicas original World War ships Replicraft drawing sets theyre good No joke friends youre WW aircraft buck stops right addition Jims 33- x 77-inch drawing sheets complete documentation packs also available Replicraft several WW aeroplanes packages include threefive-view both sides front top bottom drawings color chips chip cards properly explain RocketrylKryway Continued page 101 body tubes release easily warp after good way practice spray smooth brass rod tube lightly two three times mold release cover fiberglass cloth resin choice first step carefully cut cloth Next measure epoxy weight electronic scale Put line epoxy dots great workshop tips tool modeler needs very good yardstick workshop free wooden get grand opening local hardware store metal Most wooden rulers straight use guide cutting balsa youre likely cut ruler well balsa below steel aluminum ruler best However metal rulers slick difficult hold place apt move making cuts simple solution Using little rubber contact cement 3M 77 spray works well attach several one-inch squares medium-grit sandpaper back ruler Now lay wood cut will stay place item found Orbiting Eagles newsletter Please send ideas notices upcoming CL Scale events contest reports especially photos CL Scale activity address very top column flying no accident procedure used verify color ensuring competitors fair treatment contest judges Send SASE Jim Kiger Replicraft 1400 Gomes Rd Fremont CA 94538 complete listing price sheet entering World War aeroplane Top Gun AMA National Championships US Scale Masters immediate plans Id seriously suggest build model set Replicrafts drawings suffer likeiThood being severely humiliated someone did Now can find someone machine accurately scaled-down 130-hp Clerget 9B rotary engine price can afford Next issue Ill have finally decided next build-along project youre enjoying aspect column start putting few dollars aside next kit Until build straight fly safely Ill talk again ss mandrel epoxy down carefully line up cloth straight possible put down form epoxy will grab cloth hold Try get straight first time Apply epoxy cloth acid brush trick have cloth wrinide fold onto itself does will have hole apply sandpaper ends Part AMA RF M*TEJ -l SAlES AND SERVICE FOR EVERVTIID4O fl/C ERAFr MIDWEST INC 1i EAST ILAflJ NORTHYILLB MICHIGAI 48157 3133480085 FAX 3133484175 $2995 #923/72 72Mhz #923/75 75Mhz #923/53 53Mhz #923/50 50Mhz #923/27 27Mhz SMALL SIZE X 100 X 100 SHOWS ANTENNAS RFOUTPUT FITS ALL DIAMETER ANTENNAS WORKS WITH AM FM OR PCM SIMPLE SNAP-ON MOUNTING REVERSE M*TE Servo reversing module fits between Rx Servo Adjusts/sets neutral reverses servo direction Supplied wires add servo leads $1995 grami*r SAB foi] ACE* AIRTRONICS* ARISTO RAFT CIRRUS EK EUTABA HEATHKIT HITEC* HOBBY SHACK JR* KLINE* KG PROPO* KRAFT* NOVAK PRO LINE RCD* ROYAL TOWER EJOBBIES WORLD ENGINES ETC. * FACTORY TRAINED ANIJ 4UTHORIZED RCMA #21 PRODUCTS FOR T @CDIUh UnflEl PU Complete Line Exhaust Systems Tuned Pipes Muffled Tuned Pipes Headers uri Mufflers 8 Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems UnsurpaSa W k.1ghin h Pfomiance September 1993 111
Edition: Model Aviation - 1993/09
Page Numbers: 100, 101, 111
SPECIAL FLIGHT ROCKETRY THIS IS THE BEGINNINGPart series articles guidance instruction making fiberglass nose cones body tubes Watching someone doing best way learn make fiberglass rockets Without luxury now will bit difficult practice success will achieved Most photos will appear article include 12-year-old daughter Julie can make reasonably good body tube anyone can fairness does have trouble nose cones list materials needed Fiberglass clothshould no heavier e per yard Try get material Silene-finished opposed Volene finish causes resin mixture penetrate fibers deeply helps make stronger body Although nothing wrong Volene finish Silene what industry uses today Cutting cloth easy necessary tools include metal straightedge sharp razor blade pattern Resins two choices hereepoxy polyester resins use fiveminute type epoxy will able take heat ejection charge molecular bond five-minute epoxies softens about 1250F lot spacemodelers know prefer use finishing type epoxies because relatively thin viscosity quicker penetration fiberglass cloth epoxy becomes thin through use reactive diluent catalyzes similarly regular epoxy resin amount diluent added cuts strength tube almost 50% Shell Chemical Company makes epoxy resin called EPON 828 finishing type called EPON 815 828 diluent added prefer use thicker type epoxy thin consistency want little solvent alcohol alcohol quickly evaporates leaving stronger resin behind attempt made create epoxy resin castings use finishing resins full strength use alcohol will become trapped inside epoxy cause warping later will problem body tubes because thickness material used few thousandths inch alcohol will evaporate first layer cloth before second layer wrapped finishing epoxies developed casting epoxies what should used castings Whichever resin selected gel time should less 30 minutes Adding alcohol resin will extend gel time about 25% epoxy used fiberglass shape should removed form ovencured about 2000F hour heat oven 2000 heat indicator light goes out shut off oven open door pop model inside mount model wooden dowel keep off grill air heat will soften epoxy temperature drops form will retain whatever shape left laid flat cookie sheet heat will flatten rocket will oval have also learned hardener key finished product darker hardener adhesive qualities epoxy mixture will have lighter color stiffer finished product will correct proportions used Using slightly less hardener will produce stiffer product will give flexible finished product manufacturer will provide report proportions use achieve desired result precision two parts epoxy should weighed rather eyeballed Polyester resins also come both types finishing regular Polyester resins strong epoxy resins begin Polyester does set up quicker Using practice allows models made day would possible using epoxy Good models can made polyester resins using regular resin will strong will sufficient weight finished model about same polyester epoxy Alco hol can used thinner too poly ester used must mixed paper cup plastic cup because resin full solvents will dissolve plastic Try use wax-covered paper cup because solvents will also dissolve wax use old liquid soap pump containers dispensing both epoxy polyester resins Release agents release agent must used mold remove hardened fiberglass mold wax-based agent used epoxy used silicone used polyester used kinds mold releases available trick find Crown Products Illinois makes complete line different kinds mold releases phone number 800 766-7655 Call Crown Products ask name dealer nearest carries mold release use three Crowns products mold releases aerosol #3270 Ready Release use aluminum steel forms epoxy releases use #3045 five-percent Silicone Mold Release aluminum steel polyester resins plastic formsDekin nylonI use #6075 Dry Film Lubricant Getting finished shape off mold still can problem dont know tricks Using Crowns #3072 Ready Release form wax must melted remove fiberglass way fill kitchen sink enough hot water cover form inch water After about 10 minutes slowly remove shell form because wax has melted form tapered nose cone being removed vacuum may created between form nose cone causing wall collapse happens work quickly possible remove nose cone form drop back hot water reshape will hold shape cools big trick using wax mold release putting enough form Ready Release spray form three times letting dry between spray before start using fiberglass use 5% Silicone Mold Release just follow instructions can use plastic forms just spray Dry Film Lubricant either epoxy polyester hardens pop forms freezer plastic will shrink enough finished article will fall off form Delrin works little better nylon freezer Forms Steel aluminum plastic materials commonly used molds Steel best number reasons greatest reason can take rough handling however can also rust unless use stainless steel Aluminum okay can become beat up quickly will wear out cleaning lot faster steel Delrin nylon Teflon good plastics nose cones short Continued page 111 US scale modelers will appreciate help offered Scale Team Racing unique event Queen City club Cincinnati Ohio discussed last months column event full-bodied models racing planes Golden Age racers can entered going through some recent news letters came across ad source three-view drawings famous American racing planes thought would pass information might interested source American Air Racing Association has three-views racing planes span years 1929 1938 includes such planes Brown B-2 Miss Los Angeles various models Keith Rider Laird Super Solution Gee Bee R-l Chester Jeep others Most drawings offered 3/4-inch scale interested write Rudy Profant 4060 W 158th St Cleveland OH 135 item found Wing Tips newsletter Mid-Hudson Modelmasters Workshop hints Bob Fun Orbiting Eagles Omaha back us month RC ScaIeIToy Continued page 109 markings infonnation Want exact dimensions wing strut mount Theyre Would like see bungee cord tall skid attached rear fuselage No problem As read several full-scale aircraft builders constructing full-scale man-carrying flying replicas original World War ships Replicraft drawing sets theyre good No joke friends youre WW aircraft buck stops right addition Jims 33- x 77-inch drawing sheets complete documentation packs also available Replicraft several WW aeroplanes packages include threefive-view both sides front top bottom drawings color chips chip cards properly explain RocketrylKryway Continued page 101 body tubes release easily warp after good way practice spray smooth brass rod tube lightly two three times mold release cover fiberglass cloth resin choice first step carefully cut cloth Next measure epoxy weight electronic scale Put line epoxy dots great workshop tips tool modeler needs very good yardstick workshop free wooden get grand opening local hardware store metal Most wooden rulers straight use guide cutting balsa youre likely cut ruler well balsa below steel aluminum ruler best However metal rulers slick difficult hold place apt move making cuts simple solution Using little rubber contact cement 3M 77 spray works well attach several one-inch squares medium-grit sandpaper back ruler Now lay wood cut will stay place item found Orbiting Eagles newsletter Please send ideas notices upcoming CL Scale events contest reports especially photos CL Scale activity address very top column flying no accident procedure used verify color ensuring competitors fair treatment contest judges Send SASE Jim Kiger Replicraft 1400 Gomes Rd Fremont CA 94538 complete listing price sheet entering World War aeroplane Top Gun AMA National Championships US Scale Masters immediate plans Id seriously suggest build model set Replicrafts drawings suffer likeiThood being severely humiliated someone did Now can find someone machine accurately scaled-down 130-hp Clerget 9B rotary engine price can afford Next issue Ill have finally decided next build-along project youre enjoying aspect column start putting few dollars aside next kit Until build straight fly safely Ill talk again ss mandrel epoxy down carefully line up cloth straight possible put down form epoxy will grab cloth hold Try get straight first time Apply epoxy cloth acid brush trick have cloth wrinide fold onto itself does will have hole apply sandpaper ends Part AMA RF M*TEJ -l SAlES AND SERVICE FOR EVERVTIID4O fl/C ERAFr MIDWEST INC 1i EAST ILAflJ NORTHYILLB MICHIGAI 48157 3133480085 FAX 3133484175 $2995 #923/72 72Mhz #923/75 75Mhz #923/53 53Mhz #923/50 50Mhz #923/27 27Mhz SMALL SIZE X 100 X 100 SHOWS ANTENNAS RFOUTPUT FITS ALL DIAMETER ANTENNAS WORKS WITH AM FM OR PCM SIMPLE SNAP-ON MOUNTING REVERSE M*TE Servo reversing module fits between Rx Servo Adjusts/sets neutral reverses servo direction Supplied wires add servo leads $1995 grami*r SAB foi] ACE* AIRTRONICS* ARISTO RAFT CIRRUS EK EUTABA HEATHKIT HITEC* HOBBY SHACK JR* KLINE* KG PROPO* KRAFT* NOVAK PRO LINE RCD* ROYAL TOWER EJOBBIES WORLD ENGINES ETC. * FACTORY TRAINED ANIJ 4UTHORIZED RCMA #21 PRODUCTS FOR T @CDIUh UnflEl PU Complete Line Exhaust Systems Tuned Pipes Muffled Tuned Pipes Headers uri Mufflers 8 Expansion Mufflers Helicopter Ball Mufflers ialized Exhaust Systems UnsurpaSa W k.1ghin h Pfomiance September 1993 111