FREE FLIGHT DURATION LAST MONTH BEGAN DISCUSSING tapered wings read column have basics down about building jig As mentioned last time can either make separate tapered jigs panel wing can construct single constant-chord jig matches bottom curvature wing root next step cut ribs probably single reason everybody doesnt build tapered wings model Cutting set ribs tapered wing lot trouble cutting bunch identical ribs constant-chord wing previous article mentioned some aerodynamic advantages reducing percentage thickness percentage camber dihedral break again tip means cant take root rib reduce office photocopy machine would reduce size airfoil course its actual thickness would reduce its percentage thickness camber reduce percentage thickness percentage camber will necessitate plotting modified break tip airfoils can old-fashioned way using airfoil coordinates sharp pencil could use computer programs plotting airfoils Either way will need draw exact airfoils correct size root break tip point dont worry about notches spars leading edge trailing edge just draw airfoils accurately possible Its good idea make note exact calculated thickness 30% chord Photocopy airfoil plots glue set photocopies suitable template material Ive used /32 1/ plywood 1/16 aluminum printed circuit board Unless plan massproduce wings plywood will work fine Carefully cut three different size templates File sand exact shape Keep checking against original plots shape especially thickness Remember finished wing will no accurate templates use make Once templates made fun begins Forget old way tracing around template sharp X-Acto accurate templates can stack up some oversized strips balsa between two templates sand out ribs wing panel time unbelievably quick help hold sandwich together doing sanding can use couple straight pins thumb pressure Ed Williamson uses two short lengths bicycle spoke uses nipples hold stack ribs together Threaded rod available hobby shop could also used biggest drawback holes can weaken balsa ribs Its good idea number rib youll know goes sequence plans call false ribs can either make extra full-length ribs discard back portion stack up short blanks false ribs shape separately usually just make single constant-chord jig very closely approximates bottom curvature reduced-camber break tip ribs Besides saving trouble making four jigs means bottoms ribs will same So just Sketch shows Mike Fantham uses root tip ribs same lower curvature provide desired tip washout make single root rib template cut out wing ribs same size shape make full-depth spars give desired wing thickness break tip Since use carbon-fiber shell over front ribs create D-box have allow thickness carbon shell ribs cut two parts front parts glued spar leading edge back parts ribs glued between spar trailing edge Next use long sanding block sand down top ribs flush spar match correct airfoils center break tip photo shows simple jig use sand front ribs prior attaching carbon fiber D-box shell Since front quarter wing essentially flat 94 Model Aviation ing Yus FlA shows spars can tapered root tip max strength center keeps weight down tips Uncovered Fl B wing shows typical high-tech construction carbon-fiber D-box shell spar rib caps TE bottom dont need use curved wing jig step Instead use flat pieces 3/4-inch birch plywood just slightly longer panel length attach templates end guide sanding block templates shown used plastic laminate Formica samples cuts easily wears well free strip 1/5 x 1/4 spruce glued plywood base pushes against back spar help hold everything place addition use few small pieces double-sided carpet tape hold everything down Note set jigs double-tapered wing will need two root-rib templates four break-rib templates two tip templates use double-sided tape hold together either two four pieces template material cut sand shape D-box wings build spar D-box complete assembly add aft ribs trailing edge done constant-chord wing jig get correct washout tip panels skew panel jig leading edge moreor-less straight moving tip forward back wing jig relative break can get exactly amount washout want After glue dry sand top aft part ribs down can either eyeball use airfoil-shaped templates temporarily attached ends panel work carefully using long sanding stick fine sandpaper results very accurate building conventional wing open structure ribs will course continuous front back easiest way pin down bottom spar spars notch rib fit down over spar sand top shape notch top spars will give much straighter spars notching ribs before installation best will allow use tapered spars advantages tapered wings lighter tips tips will significantly lighter reduce size spars leading edge trailing edge go root tip Think about piece /s x 1/4 strong enough center wing loads highest isnt way too strong tip loads much lower constantchord wing tapering width andlor thickness main spar root tip will reduce overall weight importantly reduce weight tips As always use lighter wood tips However works balsa Spruce course carbon fiber much uniform weight have reduce size reduce weight Minsk 061 Great Britains Dave Clarkson sent along some information about engines other free flight goodies imports former Soviet Union Although companys name Engines Russia latest offering Minsk 061 must come Belarus Minsk capital nowindependent republic engine features usual ABC Aluminum Brass Chrome piston sleeve construction Schnuerle porting Twin ballbearings support crankshaft As can tell photos engine front-intake rear-exhaust Weight 70 grams Cost $100 plus postage No word performance might good choice large FlJ Dave also handles Stels 061 plain-bearing engine well Cyclon 25cc engine FlC also imports Cyclon variable-pitch delayed-prop-release Wakefield front ends information can write Dave Engines Russia 100 Lowfield Road Stockport 5K3 8JR England ABC Free Flight Supplies Belgian Nordic flier Jos Melis has put together very extensive catalog free flight supplies produced modeters former Eastern-Bloc countries list reads like Whos international free flight Victor Stamov Sergei Makarov Mikhail Kochkarov Vladimir Feodorov Andry Burdov Victor Isaenko Alexander Andriukov Ivan Horejsi Igor Sheredin Valery Polyaev Although items such Andriukov Wakefield parts Horejsi carbon-fiber spars available conveniently through Sal Frucianos Starline International 6146 East Cactus Wren Rd Scottsdale AZ 85253 ABC Free Flight Supplies catalog offers few items have seen before April 1995 95 Simple jig holds front sections wing place between templates Long sanding block used shape tapered panel Minsk 061 double-ball-bearing Schnuerle ported engine suitable F1J Weight bit high 70 grams Stels 061 weighs 47 gramssame Cox TD 049 Also has same spacing mounting lugs Cox Sukhoi Su26 R C Sport ScaIc 40 Size XO lanci MADE IN THE Lx Wing Span 54h Fuselage Designed untradition Wing Area 520 sq inally circular fuselage made Length 42 Inone piece thin plywood same Weight 52 lbsvacuum formed parts Engine 4046 2C Wing Made foam core 48-60 4CCoveted 1/16 Balsa sheets Colors Blue & White Aerobatics Performance Radio 4 Channelsplane made have same Covering High Qualityaezobatic qualities full scale polyester film fuelCan rolls loops spins resistent printingloncewaks etc PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSThX CA 91745 Fax 818 3309351 O1UELS OMX z ]I~Yr Quiet Flight Iruterr Brits arent good hype think OFI use best writers around world brit fastest coverage major events latest QFI now its 6th issue quality has maintained throughout want back issues can supply people want whole month aim give best coverage sport dont miss out get copy youi Hobby Store subscription Please supply back issues 1 23 45 NeM Subscription 6 78 sio U S Canadian Subscriptions -$42 tor i issues $4 $7 twoContact OFI USA 2705 Harvest Rd Modesto CA 95355-3430 $lOforany three etc el 209-521-5412 6am 8pm California Time Please debit credit cardName __________________________________ Discovery American Express sorry Address ____________________________________ // /_____________________ Expiry/ZipTelephone Please start subscription OFI Latest Issue ____ Issue number _____ OFI independent magazine Double Digit Publications 5 Wootton Rise Wootton Wawen Warwickshire B95 6BJ England Tel 0044 564 793169 Fax 0044 564 792784 parts accessories complete models Both Burdov Feodorov offer lightweight fiberglass model boxes Wakefield chance examine Feodorovs last year quite nice Prices $125 range plus shipping Victor Stamov offers custom-cut template sets next tapered wing Just send tracing coordinates Cost $55 set CNC-cut 1mm steel modelers offer complete ready-to-fly models range bunt-equipped Nordic gliders about $1200 FlH A-l glider $200 Its also set up bunt seriously interested FAI events Nordic Wakefield Power contact Jos copy catalog address Jos Melis Winterbeekstraat 1 3730 Hoeselt Belgium way requesting catalog information overseas sure include some international reply coupons letter can buy local post office Dave Jos whomever can redeem local post office stamps send catalog back US stamps dont work except US REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes What look farina CA hinge Experience no can match SiGs 10 years development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated CA wicks across whole hinge wood Processed retard CA cure time correct mistake lust surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still beat name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST SH-710 Pkg 24- 295 Materials Total Thickness Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Treatment Slots Holes A A A F n A C F n B C BF F F C F D F F D D F F CF F CD F F Montezuma IA 50171 623-5154 Glue Action Wickina Delayed Cure Average Grade SIG MFG CO INC 401-7 So Front St 96 Model Aviation HINESJ
Edition: Model Aviation - 1995/04
Page Numbers: 94, 95, 96
FREE FLIGHT DURATION LAST MONTH BEGAN DISCUSSING tapered wings read column have basics down about building jig As mentioned last time can either make separate tapered jigs panel wing can construct single constant-chord jig matches bottom curvature wing root next step cut ribs probably single reason everybody doesnt build tapered wings model Cutting set ribs tapered wing lot trouble cutting bunch identical ribs constant-chord wing previous article mentioned some aerodynamic advantages reducing percentage thickness percentage camber dihedral break again tip means cant take root rib reduce office photocopy machine would reduce size airfoil course its actual thickness would reduce its percentage thickness camber reduce percentage thickness percentage camber will necessitate plotting modified break tip airfoils can old-fashioned way using airfoil coordinates sharp pencil could use computer programs plotting airfoils Either way will need draw exact airfoils correct size root break tip point dont worry about notches spars leading edge trailing edge just draw airfoils accurately possible Its good idea make note exact calculated thickness 30% chord Photocopy airfoil plots glue set photocopies suitable template material Ive used /32 1/ plywood 1/16 aluminum printed circuit board Unless plan massproduce wings plywood will work fine Carefully cut three different size templates File sand exact shape Keep checking against original plots shape especially thickness Remember finished wing will no accurate templates use make Once templates made fun begins Forget old way tracing around template sharp X-Acto accurate templates can stack up some oversized strips balsa between two templates sand out ribs wing panel time unbelievably quick help hold sandwich together doing sanding can use couple straight pins thumb pressure Ed Williamson uses two short lengths bicycle spoke uses nipples hold stack ribs together Threaded rod available hobby shop could also used biggest drawback holes can weaken balsa ribs Its good idea number rib youll know goes sequence plans call false ribs can either make extra full-length ribs discard back portion stack up short blanks false ribs shape separately usually just make single constant-chord jig very closely approximates bottom curvature reduced-camber break tip ribs Besides saving trouble making four jigs means bottoms ribs will same So just Sketch shows Mike Fantham uses root tip ribs same lower curvature provide desired tip washout make single root rib template cut out wing ribs same size shape make full-depth spars give desired wing thickness break tip Since use carbon-fiber shell over front ribs create D-box have allow thickness carbon shell ribs cut two parts front parts glued spar leading edge back parts ribs glued between spar trailing edge Next use long sanding block sand down top ribs flush spar match correct airfoils center break tip photo shows simple jig use sand front ribs prior attaching carbon fiber D-box shell Since front quarter wing essentially flat 94 Model Aviation ing Yus FlA shows spars can tapered root tip max strength center keeps weight down tips Uncovered Fl B wing shows typical high-tech construction carbon-fiber D-box shell spar rib caps TE bottom dont need use curved wing jig step Instead use flat pieces 3/4-inch birch plywood just slightly longer panel length attach templates end guide sanding block templates shown used plastic laminate Formica samples cuts easily wears well free strip 1/5 x 1/4 spruce glued plywood base pushes against back spar help hold everything place addition use few small pieces double-sided carpet tape hold everything down Note set jigs double-tapered wing will need two root-rib templates four break-rib templates two tip templates use double-sided tape hold together either two four pieces template material cut sand shape D-box wings build spar D-box complete assembly add aft ribs trailing edge done constant-chord wing jig get correct washout tip panels skew panel jig leading edge moreor-less straight moving tip forward back wing jig relative break can get exactly amount washout want After glue dry sand top aft part ribs down can either eyeball use airfoil-shaped templates temporarily attached ends panel work carefully using long sanding stick fine sandpaper results very accurate building conventional wing open structure ribs will course continuous front back easiest way pin down bottom spar spars notch rib fit down over spar sand top shape notch top spars will give much straighter spars notching ribs before installation best will allow use tapered spars advantages tapered wings lighter tips tips will significantly lighter reduce size spars leading edge trailing edge go root tip Think about piece /s x 1/4 strong enough center wing loads highest isnt way too strong tip loads much lower constantchord wing tapering width andlor thickness main spar root tip will reduce overall weight importantly reduce weight tips As always use lighter wood tips However works balsa Spruce course carbon fiber much uniform weight have reduce size reduce weight Minsk 061 Great Britains Dave Clarkson sent along some information about engines other free flight goodies imports former Soviet Union Although companys name Engines Russia latest offering Minsk 061 must come Belarus Minsk capital nowindependent republic engine features usual ABC Aluminum Brass Chrome piston sleeve construction Schnuerle porting Twin ballbearings support crankshaft As can tell photos engine front-intake rear-exhaust Weight 70 grams Cost $100 plus postage No word performance might good choice large FlJ Dave also handles Stels 061 plain-bearing engine well Cyclon 25cc engine FlC also imports Cyclon variable-pitch delayed-prop-release Wakefield front ends information can write Dave Engines Russia 100 Lowfield Road Stockport 5K3 8JR England ABC Free Flight Supplies Belgian Nordic flier Jos Melis has put together very extensive catalog free flight supplies produced modeters former Eastern-Bloc countries list reads like Whos international free flight Victor Stamov Sergei Makarov Mikhail Kochkarov Vladimir Feodorov Andry Burdov Victor Isaenko Alexander Andriukov Ivan Horejsi Igor Sheredin Valery Polyaev Although items such Andriukov Wakefield parts Horejsi carbon-fiber spars available conveniently through Sal Frucianos Starline International 6146 East Cactus Wren Rd Scottsdale AZ 85253 ABC Free Flight Supplies catalog offers few items have seen before April 1995 95 Simple jig holds front sections wing place between templates Long sanding block used shape tapered panel Minsk 061 double-ball-bearing Schnuerle ported engine suitable F1J Weight bit high 70 grams Stels 061 weighs 47 gramssame Cox TD 049 Also has same spacing mounting lugs Cox Sukhoi Su26 R C Sport ScaIc 40 Size XO lanci MADE IN THE Lx Wing Span 54h Fuselage Designed untradition Wing Area 520 sq inally circular fuselage made Length 42 Inone piece thin plywood same Weight 52 lbsvacuum formed parts Engine 4046 2C Wing Made foam core 48-60 4CCoveted 1/16 Balsa sheets Colors Blue & White Aerobatics Performance Radio 4 Channelsplane made have same Covering High Qualityaezobatic qualities full scale polyester film fuelCan rolls loops spins resistent printingloncewaks etc PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSThX CA 91745 Fax 818 3309351 O1UELS OMX z ]I~Yr Quiet Flight Iruterr Brits arent good hype think OFI use best writers around world brit fastest coverage major events latest QFI now its 6th issue quality has maintained throughout want back issues can supply people want whole month aim give best coverage sport dont miss out get copy youi Hobby Store subscription Please supply back issues 1 23 45 NeM Subscription 6 78 sio U S Canadian Subscriptions -$42 tor i issues $4 $7 twoContact OFI USA 2705 Harvest Rd Modesto CA 95355-3430 $lOforany three etc el 209-521-5412 6am 8pm California Time Please debit credit cardName __________________________________ Discovery American Express sorry Address ____________________________________ // /_____________________ Expiry/ZipTelephone Please start subscription OFI Latest Issue ____ Issue number _____ OFI independent magazine Double Digit Publications 5 Wootton Rise Wootton Wawen Warwickshire B95 6BJ England Tel 0044 564 793169 Fax 0044 564 792784 parts accessories complete models Both Burdov Feodorov offer lightweight fiberglass model boxes Wakefield chance examine Feodorovs last year quite nice Prices $125 range plus shipping Victor Stamov offers custom-cut template sets next tapered wing Just send tracing coordinates Cost $55 set CNC-cut 1mm steel modelers offer complete ready-to-fly models range bunt-equipped Nordic gliders about $1200 FlH A-l glider $200 Its also set up bunt seriously interested FAI events Nordic Wakefield Power contact Jos copy catalog address Jos Melis Winterbeekstraat 1 3730 Hoeselt Belgium way requesting catalog information overseas sure include some international reply coupons letter can buy local post office Dave Jos whomever can redeem local post office stamps send catalog back US stamps dont work except US REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes What look farina CA hinge Experience no can match SiGs 10 years development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated CA wicks across whole hinge wood Processed retard CA cure time correct mistake lust surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still beat name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST SH-710 Pkg 24- 295 Materials Total Thickness Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Treatment Slots Holes A A A F n A C F n B C BF F F C F D F F D D F F CF F CD F F Montezuma IA 50171 623-5154 Glue Action Wickina Delayed Cure Average Grade SIG MFG CO INC 401-7 So Front St 96 Model Aviation HINESJ
Edition: Model Aviation - 1995/04
Page Numbers: 94, 95, 96
FREE FLIGHT DURATION LAST MONTH BEGAN DISCUSSING tapered wings read column have basics down about building jig As mentioned last time can either make separate tapered jigs panel wing can construct single constant-chord jig matches bottom curvature wing root next step cut ribs probably single reason everybody doesnt build tapered wings model Cutting set ribs tapered wing lot trouble cutting bunch identical ribs constant-chord wing previous article mentioned some aerodynamic advantages reducing percentage thickness percentage camber dihedral break again tip means cant take root rib reduce office photocopy machine would reduce size airfoil course its actual thickness would reduce its percentage thickness camber reduce percentage thickness percentage camber will necessitate plotting modified break tip airfoils can old-fashioned way using airfoil coordinates sharp pencil could use computer programs plotting airfoils Either way will need draw exact airfoils correct size root break tip point dont worry about notches spars leading edge trailing edge just draw airfoils accurately possible Its good idea make note exact calculated thickness 30% chord Photocopy airfoil plots glue set photocopies suitable template material Ive used /32 1/ plywood 1/16 aluminum printed circuit board Unless plan massproduce wings plywood will work fine Carefully cut three different size templates File sand exact shape Keep checking against original plots shape especially thickness Remember finished wing will no accurate templates use make Once templates made fun begins Forget old way tracing around template sharp X-Acto accurate templates can stack up some oversized strips balsa between two templates sand out ribs wing panel time unbelievably quick help hold sandwich together doing sanding can use couple straight pins thumb pressure Ed Williamson uses two short lengths bicycle spoke uses nipples hold stack ribs together Threaded rod available hobby shop could also used biggest drawback holes can weaken balsa ribs Its good idea number rib youll know goes sequence plans call false ribs can either make extra full-length ribs discard back portion stack up short blanks false ribs shape separately usually just make single constant-chord jig very closely approximates bottom curvature reduced-camber break tip ribs Besides saving trouble making four jigs means bottoms ribs will same So just Sketch shows Mike Fantham uses root tip ribs same lower curvature provide desired tip washout make single root rib template cut out wing ribs same size shape make full-depth spars give desired wing thickness break tip Since use carbon-fiber shell over front ribs create D-box have allow thickness carbon shell ribs cut two parts front parts glued spar leading edge back parts ribs glued between spar trailing edge Next use long sanding block sand down top ribs flush spar match correct airfoils center break tip photo shows simple jig use sand front ribs prior attaching carbon fiber D-box shell Since front quarter wing essentially flat 94 Model Aviation ing Yus FlA shows spars can tapered root tip max strength center keeps weight down tips Uncovered Fl B wing shows typical high-tech construction carbon-fiber D-box shell spar rib caps TE bottom dont need use curved wing jig step Instead use flat pieces 3/4-inch birch plywood just slightly longer panel length attach templates end guide sanding block templates shown used plastic laminate Formica samples cuts easily wears well free strip 1/5 x 1/4 spruce glued plywood base pushes against back spar help hold everything place addition use few small pieces double-sided carpet tape hold everything down Note set jigs double-tapered wing will need two root-rib templates four break-rib templates two tip templates use double-sided tape hold together either two four pieces template material cut sand shape D-box wings build spar D-box complete assembly add aft ribs trailing edge done constant-chord wing jig get correct washout tip panels skew panel jig leading edge moreor-less straight moving tip forward back wing jig relative break can get exactly amount washout want After glue dry sand top aft part ribs down can either eyeball use airfoil-shaped templates temporarily attached ends panel work carefully using long sanding stick fine sandpaper results very accurate building conventional wing open structure ribs will course continuous front back easiest way pin down bottom spar spars notch rib fit down over spar sand top shape notch top spars will give much straighter spars notching ribs before installation best will allow use tapered spars advantages tapered wings lighter tips tips will significantly lighter reduce size spars leading edge trailing edge go root tip Think about piece /s x 1/4 strong enough center wing loads highest isnt way too strong tip loads much lower constantchord wing tapering width andlor thickness main spar root tip will reduce overall weight importantly reduce weight tips As always use lighter wood tips However works balsa Spruce course carbon fiber much uniform weight have reduce size reduce weight Minsk 061 Great Britains Dave Clarkson sent along some information about engines other free flight goodies imports former Soviet Union Although companys name Engines Russia latest offering Minsk 061 must come Belarus Minsk capital nowindependent republic engine features usual ABC Aluminum Brass Chrome piston sleeve construction Schnuerle porting Twin ballbearings support crankshaft As can tell photos engine front-intake rear-exhaust Weight 70 grams Cost $100 plus postage No word performance might good choice large FlJ Dave also handles Stels 061 plain-bearing engine well Cyclon 25cc engine FlC also imports Cyclon variable-pitch delayed-prop-release Wakefield front ends information can write Dave Engines Russia 100 Lowfield Road Stockport 5K3 8JR England ABC Free Flight Supplies Belgian Nordic flier Jos Melis has put together very extensive catalog free flight supplies produced modeters former Eastern-Bloc countries list reads like Whos international free flight Victor Stamov Sergei Makarov Mikhail Kochkarov Vladimir Feodorov Andry Burdov Victor Isaenko Alexander Andriukov Ivan Horejsi Igor Sheredin Valery Polyaev Although items such Andriukov Wakefield parts Horejsi carbon-fiber spars available conveniently through Sal Frucianos Starline International 6146 East Cactus Wren Rd Scottsdale AZ 85253 ABC Free Flight Supplies catalog offers few items have seen before April 1995 95 Simple jig holds front sections wing place between templates Long sanding block used shape tapered panel Minsk 061 double-ball-bearing Schnuerle ported engine suitable F1J Weight bit high 70 grams Stels 061 weighs 47 gramssame Cox TD 049 Also has same spacing mounting lugs Cox Sukhoi Su26 R C Sport ScaIc 40 Size XO lanci MADE IN THE Lx Wing Span 54h Fuselage Designed untradition Wing Area 520 sq inally circular fuselage made Length 42 Inone piece thin plywood same Weight 52 lbsvacuum formed parts Engine 4046 2C Wing Made foam core 48-60 4CCoveted 1/16 Balsa sheets Colors Blue & White Aerobatics Performance Radio 4 Channelsplane made have same Covering High Qualityaezobatic qualities full scale polyester film fuelCan rolls loops spins resistent printingloncewaks etc PACIFIC AEROMODEL MFG INC 760 STIMSON AVE CITY OF INDUSThX CA 91745 Fax 818 3309351 O1UELS OMX z ]I~Yr Quiet Flight Iruterr Brits arent good hype think OFI use best writers around world brit fastest coverage major events latest QFI now its 6th issue quality has maintained throughout want back issues can supply people want whole month aim give best coverage sport dont miss out get copy youi Hobby Store subscription Please supply back issues 1 23 45 NeM Subscription 6 78 sio U S Canadian Subscriptions -$42 tor i issues $4 $7 twoContact OFI USA 2705 Harvest Rd Modesto CA 95355-3430 $lOforany three etc el 209-521-5412 6am 8pm California Time Please debit credit cardName __________________________________ Discovery American Express sorry Address ____________________________________ // /_____________________ Expiry/ZipTelephone Please start subscription OFI Latest Issue ____ Issue number _____ OFI independent magazine Double Digit Publications 5 Wootton Rise Wootton Wawen Warwickshire B95 6BJ England Tel 0044 564 793169 Fax 0044 564 792784 parts accessories complete models Both Burdov Feodorov offer lightweight fiberglass model boxes Wakefield chance examine Feodorovs last year quite nice Prices $125 range plus shipping Victor Stamov offers custom-cut template sets next tapered wing Just send tracing coordinates Cost $55 set CNC-cut 1mm steel modelers offer complete ready-to-fly models range bunt-equipped Nordic gliders about $1200 FlH A-l glider $200 Its also set up bunt seriously interested FAI events Nordic Wakefield Power contact Jos copy catalog address Jos Melis Winterbeekstraat 1 3730 Hoeselt Belgium way requesting catalog information overseas sure include some international reply coupons letter can buy local post office Dave Jos whomever can redeem local post office stamps send catalog back US stamps dont work except US REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes What look farina CA hinge Experience no can match SiGs 10 years development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment secure grip facing comes off hinge will come out Facing Thin easy insert hinge Treated CA wicks across whole hinge wood Processed retard CA cure time correct mistake lust surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still beat name CA hinges Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST SH-710 Pkg 24- 295 Materials Total Thickness Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Treatment Slots Holes A A A F n A C F n B C BF F F C F D F F D D F F CF F CD F F Montezuma IA 50171 623-5154 Glue Action Wickina Delayed Cure Average Grade SIG MFG CO INC 401-7 So Front St 96 Model Aviation HINESJ