No stranger making waves IHLG author has another winner high-tech 24112-in-wingspan 62-gm national Indoor Category Open record holder U Stan Buddenbohm Above Make up simple kit parts add materials shown before know youll tickling rafters own highly competitive little Slow Poker Above right model dives adjust wing incidence sanding bottom pylon shown Below right Persuading flaps assume correct airfoil easy Simply rub flap between thumb fingers bending well past desired camberno water forms needed 64 Model Aviation completed Slow Poker two its latest AMA records series high-tech Indoor Hand-Launched Gliders has dominated field since 1986 Slow Poker makes rare outdoor appear ance authorldesigner Buddenbohm FEW aspects Free Flight beautiful sight Indoor Hand-Launched Glider IHLG gracefully smoothly ever slowly descending 26-foot ceiling full 47 seconds Three-quarters second can stretch eternity pleasure youre watching glider circle lazily overhead Slow Poker latest series high-tech IHLGs begun several years ago has dominated field since 1986 model delivers 47-second flights regular basis holds current national Indoor Category Open record 948 seconds two flights first Slow Poker make its mark did besting Phedon Tsiknopouloss all-wood record later version overturned Mark Drela s high-tech record 828-second flight Making small improvements glider boosted record 851 seconds very large jump current record Indoor HLG few seconds very large jump came about rethinking design trim philosophies Like successful low-ceiling gliders since Stoy brothers Coot Slow Poker uses flapper wing type wing designed achieve lower drag having airfoil flatten launch increase wing incidence however used undercamber weaker flaps conventional flapper wing higher incidence results quicker recovery better glide also increased stabilizer area Most designs attempt save weight using small stabilizers Very small stabilizers however cause small barely perceptible oscillations glide speed reducing flight time dramatically Construction building techniques described below new practice little before using carefully selected wood recommend using instant glue throughout Wood selection critical building IHLG creative persistent search very best Check hobby shops train shops craft stores mail order catalogs Sometimes can use part larger piece other cases can edge join several narrower pieces Neither strategy has prevented producing recordbreaking models especially careful selecting wood flaps wood must under five-pound-density A-grain flaps will too rigid Wing Build right left panels separately Glue C-grain portion flaps follows True edges straightedge large straight sanding block Place pieces bottom side down waxed paper Butt edges put drop glue approximately one-inch intervals along joint Turn panel over Correct irregularities joint sanding bottom flat Apply glue along full length bottom Dont get carried away glue adds weight Shape wing shown Add plywood leading edge protector see Zenith December 1991 Model Aviation Sand thickness taper center tip Begin sanding airfoil conventional Hand-Launched Glider add unusual contours essential obtaining correct airfoil after flaps have bent best done narrow sanding block time have sanded two-thirds length span shape will gradually have changed conventional glider airfoil no dips Shape dihedral joint glue wing halves together glue flaps together dihedral joint Two forms carbon fiber used Slow Poker carbon fiber tow wing 003 carbon fiber sheet fuselage June1992 65 achieve best launon tne wont portion 0 tne iow 1oKer wing must C-grain stiffness flap portion must A-grain flexibility Cross-dihedral wing stiffeners made lightly misting loose carbon fiber tow squeezing flat between thumb finger Just two pieces drafting tape hold pylon fuselage during trim flights Full-Size Plans Available. See Page 180 SANDED AIRFOIL BOTH THE DIP BEHIND THE HIGH POINT & THE UNDERCAMBER FADE OUT BY 2/3 SPAN BENDING FLAPS RUB BETWEEN THUMB & FINGERS WHILE BENDING WELL PAST DESIRED CAMBER 015 5 lb C-GRAINj/f HIGH POINT INS 41bA-GRAIN FLAPS 4 lb C- GRAIN CARBON FIBER TOW TOPS BOTTOM ACROSS DIHEDRAL JOINT ONE STREP OF 1/64 PLYWOOD LE PROTECTION 12 LZKJ FIZKBF1 BY STAN BUDDENBOHM INDOOR CAT NATIONAL RECORD HOLDER 472 478 EEC SPAN 245 LENGTH 18 WEIGHT STAB 5 RUDDER PYLON. BALLAST~ 8 TOTAL GMS 22 NO OFFSETS BUILT-IN INCHES 0 1/2 12 3 DO NOT GLUE FLAPS TOGETHER AT DIHEDRAL JOINT 08 01 56 4 lb C GRAIN 060301 Ii 2 61 5 lb BALSA WITH 003 6 lb C GRAIN.... l I16CARBON FIBER SHEET SIDES08 015 carbon fiber tow stiffeners should applied top bottom across dihedral joint form carbon fiber has best strength-to-weight ratio also somewhat difficult work Cut piece carbon fiber tow length using scissors Hold end lightly spray water squeeze flat ribbon thumb forefinger Peel off 118-in strip repeat process carbon fiber should easier handle after few minutes drying extra camber flap formed grasping structure between thumb fingers bending well past desired shape sliding hand back forth along span can take minutes hours depending wood Fuselage photos slender stick laminated carbon fiber balsa intimidate take heart Building fuselage will lot less difficult follow correct procedures Begin 18 x 2-in balsa sheet Sand thickness taper entire sheet Its much easier handle piece large work small finished size Cut two strips 003 carbon fiber sheet 1/4 x 18 Sand shine off side carbon sheet achieve good carbon-to-wood glue joint Use sanding block avoid splinters move block away hand holding carbon fiber prevent material buckling Wipe off dust Affix two-inch piece drafting tape last quarter-inch end shiny side carbon fiber strip Turn carbon fiber sheet dull side up over waxed paper-covered building board run large bead thin instant glue along its entire length Work quicklyyou have 30 seconds less position carbon fiber strip Use tape handles pick up strip turn over hold just above edge fuselage sheet Lower carbon fiber until contacts balsa press along entire length Keep some sort shield between finger carbon fiber avoid splinters avoid getting glued model waxed paper works well carbon fiber strip cannot repositioned once has made contact balsa youll have get right first time Turn fuselage sheet over attach second carbon fiber strip Straighten carbon fiber-trimmed edge sanding block will become bottom completed fuselage Slice laminated portion larger piece shape final fuselage profile save weight sand rest shine carbon fiber small amount glue along Continued page 159 66 Model Aviation Slow Poker Type Indoor Hand-Launched Glider Wingspan 241/2 Wing area available Expected flying weight 62 gm Type construction Sheet balsa carbon-fiber tow reinforcement Type covering/finish recommended None recollects day smiling invited friends look first upside down flight USSR take pictures began flying Helicopter about 165 yards up keeping model air level got upside down turned Invert switch being disconcerted nervous forgot increase engines revolutions model slowly descended 55 yards level ground Sergey righted model flew up 165 yards second time Now sure mistake sure knew what time turned model upside down decreasing engines revolutions can imagine what happened Blades rotor bent broke beautiful bird crashed ground ended first step trial ended failure terrific photos memorable event Sometime later Sergeys Finnish friend sent him gyro improvements went Since 1982 Amelin has built six model Helicopters improvement over last latest model incorporates sum experience everything Sergey has read seen embodied Only few details made plastic Sergey usually makes everything metal technology produce details out plastic has mastered enterprise Harkov City Talking Sergey about perspective RC events developing Russia Ive learned lots people want fly RC plenty problems try acquire serial models reliable RC systems Modelers would rather buy serial models build themselvesmaking mistakes getting experience having no time flying Also modelers want contestsnot just FAI events contests would good beginnerssimple events give new fliers chance practice knows maybe enthusiasts can make some changes maybe sometime will contests between Americans Russians flying Helicopters Right now Helis still exotic thing Russia Sergey Amelin working change RC Giant/DeVries Continued page 53 P-Si pilot wanted launch flare hooked up pistol mount pulled trigger Certainly hole would make fine addition very Scale model Speaking model Mustangs did ever see recognition lights full-scale bird three circular lights mounted line bottom wing near right tip lights red green amber used display code night friendly antiaircraft gunners would fire Push-Rod Selection Leaves Up InTheAir Its true offer complete line push-rods world thats important reason choose Sullivan push-rods fact once its model doesnt matter other push-rods carly just want yours work best its will Sullivan push-rods designed built maximum strength flexibility dependability Theyre also light wei t well simply best canuy Which means get widest choice Sullivan 1 PRODUCIS push-rods get best choice PD BOx5166 Baltimore MD 21224 Getting Better Ideas Off Ground intrepid P-Si pilot other US warbirds also recognition lights Have ever seen WW II fighter model equipped tail-mounted warning radar antenna Secured vertical tail surface radar functioned much same way present-day automotive fuzz buster enemy aircraft slid ideal tail-on firing position tail warning radar would give either visual audible alarm fighters cockpit same alarm would sound/show friendly aircraft tagging behind Finally formation lights blue lights usually mounted upper surface aircraft used reference points aid wingmen maintaining position formation night As said beginning column small details often overlooked Scale modelers Working Giant Scale can duplicate details little difficulty birds will much better ittheyll truly miniature aircraft Doc Pepino has inspiration jovial proprietor Scale Plans & Photo Service 3209 Madison Ave Greensboro NC 27403 has come up video catalog Scale designs 10 bucks Jimll send tape can see drawings fleshand air best part exercise sawbuck can applied price drawings order also has new paper June 1992 139 / Slow PokerlBuddenbohm Continued page 66 top bottom fuselage will help control splintering Assembly Flying Glue pylon wing fuselage Glue stabilizer rudder fuselage Temporarily attach pylon fuselage two pieces drafting tape Add nose weight achieve level glide two effective ways turn modelwith rudder offset tip weight flight pattern low-ceiling gliders either left-left right-right youre right-handed recommend left-left test glide Begin small amount rudder turn model doesnt circle tightly enough add weight left wing amount wing incidence required depends upon flexibility flaps test throw model hard straight ahead its neither angled upward downward nor banked left right craft should stay level eventually slowing turning glide circle dives remove wing sand incidence bottom pylon climbs slows decrease incidence wing shows tendency barrel roll reduce rudder offset Keep fuselage line launch its scale kits engines accessories want & want em now got emFrank Tiano .boat car kits hardto-find pails & anything need want.its stockJoe Manzella SHIPPED WITHIN 24 DES 1387 N Military Trail West Palm Beach FL 33409 407-688-13669 angle throughout throwing motion dont swing model through arc motion should somewhat like throwing dart idea throw hard can putting little stress wings possible Otherwise youll likely using lot instant glue repairs endurance flights best launch about 700 upward no left right bank should enough rudder offset initiate glide circle just top climb reached Make sure youre completely satisfied incidence before gluing pylon fuselage have questions Ill happy respond Send SASE 5652 Meinhardt Rd Westminster CA 92683 again may simply want share experiences low-ceiling gliders Id pleased hear about uration/Murphy Continued page 71 available same price knew US Postal Service would soon charging shipping item worth Progress Hank further informs us early Tatone timers used longer screw retain back cover 5mm-length black replacement Part #21145-5 also available $95 plus $1 shipping Hank says KSB timers use same screw retain both back cover faceplate have lot timers fix can get 100 screws bulk-packed June 1992 159 LIGHTING SYSTEMS THE ORIGINALS. Still Best #RED 01Programmable Flashing Navigation Lights 9V$2495 *RED 02Strobe Light Adi Rate 9V$1995 #RED 03Landing Lights 48V$3995 #RED 04Mars Rotating Beacon Adi Rate 9 V$1995 *RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 *RED 23Real Strobe Light true zenon strobe 3V$2995 SEE YOUR DEALER 5TAMPED ENVELOPE FOR RAM INFO unavailable locally send check money order full credit card info cost item plus $400 $500 foreignfor immediate shipment Include full address UPS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 responding advertisers mention read aboutiXHAAJST SYSTEMS FOA MTTEN AIRCHAFT AND ULTIMATE EWE SIUCONE CO4JPLERS AND TAIL PIPES ALSO AVAILABLE ModelAviation CPU CS MCrE FCS If0iSAATU4 OAiCS HOMSS IJITED RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 HOBBY SUPER STORE
Edition: Model Aviation - 1992/06
Page Numbers: 64, 65, 66, 139, 159
No stranger making waves IHLG author has another winner high-tech 24112-in-wingspan 62-gm national Indoor Category Open record holder U Stan Buddenbohm Above Make up simple kit parts add materials shown before know youll tickling rafters own highly competitive little Slow Poker Above right model dives adjust wing incidence sanding bottom pylon shown Below right Persuading flaps assume correct airfoil easy Simply rub flap between thumb fingers bending well past desired camberno water forms needed 64 Model Aviation completed Slow Poker two its latest AMA records series high-tech Indoor Hand-Launched Gliders has dominated field since 1986 Slow Poker makes rare outdoor appear ance authorldesigner Buddenbohm FEW aspects Free Flight beautiful sight Indoor Hand-Launched Glider IHLG gracefully smoothly ever slowly descending 26-foot ceiling full 47 seconds Three-quarters second can stretch eternity pleasure youre watching glider circle lazily overhead Slow Poker latest series high-tech IHLGs begun several years ago has dominated field since 1986 model delivers 47-second flights regular basis holds current national Indoor Category Open record 948 seconds two flights first Slow Poker make its mark did besting Phedon Tsiknopouloss all-wood record later version overturned Mark Drela s high-tech record 828-second flight Making small improvements glider boosted record 851 seconds very large jump current record Indoor HLG few seconds very large jump came about rethinking design trim philosophies Like successful low-ceiling gliders since Stoy brothers Coot Slow Poker uses flapper wing type wing designed achieve lower drag having airfoil flatten launch increase wing incidence however used undercamber weaker flaps conventional flapper wing higher incidence results quicker recovery better glide also increased stabilizer area Most designs attempt save weight using small stabilizers Very small stabilizers however cause small barely perceptible oscillations glide speed reducing flight time dramatically Construction building techniques described below new practice little before using carefully selected wood recommend using instant glue throughout Wood selection critical building IHLG creative persistent search very best Check hobby shops train shops craft stores mail order catalogs Sometimes can use part larger piece other cases can edge join several narrower pieces Neither strategy has prevented producing recordbreaking models especially careful selecting wood flaps wood must under five-pound-density A-grain flaps will too rigid Wing Build right left panels separately Glue C-grain portion flaps follows True edges straightedge large straight sanding block Place pieces bottom side down waxed paper Butt edges put drop glue approximately one-inch intervals along joint Turn panel over Correct irregularities joint sanding bottom flat Apply glue along full length bottom Dont get carried away glue adds weight Shape wing shown Add plywood leading edge protector see Zenith December 1991 Model Aviation Sand thickness taper center tip Begin sanding airfoil conventional Hand-Launched Glider add unusual contours essential obtaining correct airfoil after flaps have bent best done narrow sanding block time have sanded two-thirds length span shape will gradually have changed conventional glider airfoil no dips Shape dihedral joint glue wing halves together glue flaps together dihedral joint Two forms carbon fiber used Slow Poker carbon fiber tow wing 003 carbon fiber sheet fuselage June1992 65 achieve best launon tne wont portion 0 tne iow 1oKer wing must C-grain stiffness flap portion must A-grain flexibility Cross-dihedral wing stiffeners made lightly misting loose carbon fiber tow squeezing flat between thumb finger Just two pieces drafting tape hold pylon fuselage during trim flights Full-Size Plans Available. See Page 180 SANDED AIRFOIL BOTH THE DIP BEHIND THE HIGH POINT & THE UNDERCAMBER FADE OUT BY 2/3 SPAN BENDING FLAPS RUB BETWEEN THUMB & FINGERS WHILE BENDING WELL PAST DESIRED CAMBER 015 5 lb C-GRAINj/f HIGH POINT INS 41bA-GRAIN FLAPS 4 lb C- GRAIN CARBON FIBER TOW TOPS BOTTOM ACROSS DIHEDRAL JOINT ONE STREP OF 1/64 PLYWOOD LE PROTECTION 12 LZKJ FIZKBF1 BY STAN BUDDENBOHM INDOOR CAT NATIONAL RECORD HOLDER 472 478 EEC SPAN 245 LENGTH 18 WEIGHT STAB 5 RUDDER PYLON. BALLAST~ 8 TOTAL GMS 22 NO OFFSETS BUILT-IN INCHES 0 1/2 12 3 DO NOT GLUE FLAPS TOGETHER AT DIHEDRAL JOINT 08 01 56 4 lb C GRAIN 060301 Ii 2 61 5 lb BALSA WITH 003 6 lb C GRAIN.... l I16CARBON FIBER SHEET SIDES08 015 carbon fiber tow stiffeners should applied top bottom across dihedral joint form carbon fiber has best strength-to-weight ratio also somewhat difficult work Cut piece carbon fiber tow length using scissors Hold end lightly spray water squeeze flat ribbon thumb forefinger Peel off 118-in strip repeat process carbon fiber should easier handle after few minutes drying extra camber flap formed grasping structure between thumb fingers bending well past desired shape sliding hand back forth along span can take minutes hours depending wood Fuselage photos slender stick laminated carbon fiber balsa intimidate take heart Building fuselage will lot less difficult follow correct procedures Begin 18 x 2-in balsa sheet Sand thickness taper entire sheet Its much easier handle piece large work small finished size Cut two strips 003 carbon fiber sheet 1/4 x 18 Sand shine off side carbon sheet achieve good carbon-to-wood glue joint Use sanding block avoid splinters move block away hand holding carbon fiber prevent material buckling Wipe off dust Affix two-inch piece drafting tape last quarter-inch end shiny side carbon fiber strip Turn carbon fiber sheet dull side up over waxed paper-covered building board run large bead thin instant glue along its entire length Work quicklyyou have 30 seconds less position carbon fiber strip Use tape handles pick up strip turn over hold just above edge fuselage sheet Lower carbon fiber until contacts balsa press along entire length Keep some sort shield between finger carbon fiber avoid splinters avoid getting glued model waxed paper works well carbon fiber strip cannot repositioned once has made contact balsa youll have get right first time Turn fuselage sheet over attach second carbon fiber strip Straighten carbon fiber-trimmed edge sanding block will become bottom completed fuselage Slice laminated portion larger piece shape final fuselage profile save weight sand rest shine carbon fiber small amount glue along Continued page 159 66 Model Aviation Slow Poker Type Indoor Hand-Launched Glider Wingspan 241/2 Wing area available Expected flying weight 62 gm Type construction Sheet balsa carbon-fiber tow reinforcement Type covering/finish recommended None recollects day smiling invited friends look first upside down flight USSR take pictures began flying Helicopter about 165 yards up keeping model air level got upside down turned Invert switch being disconcerted nervous forgot increase engines revolutions model slowly descended 55 yards level ground Sergey righted model flew up 165 yards second time Now sure mistake sure knew what time turned model upside down decreasing engines revolutions can imagine what happened Blades rotor bent broke beautiful bird crashed ground ended first step trial ended failure terrific photos memorable event Sometime later Sergeys Finnish friend sent him gyro improvements went Since 1982 Amelin has built six model Helicopters improvement over last latest model incorporates sum experience everything Sergey has read seen embodied Only few details made plastic Sergey usually makes everything metal technology produce details out plastic has mastered enterprise Harkov City Talking Sergey about perspective RC events developing Russia Ive learned lots people want fly RC plenty problems try acquire serial models reliable RC systems Modelers would rather buy serial models build themselvesmaking mistakes getting experience having no time flying Also modelers want contestsnot just FAI events contests would good beginnerssimple events give new fliers chance practice knows maybe enthusiasts can make some changes maybe sometime will contests between Americans Russians flying Helicopters Right now Helis still exotic thing Russia Sergey Amelin working change RC Giant/DeVries Continued page 53 P-Si pilot wanted launch flare hooked up pistol mount pulled trigger Certainly hole would make fine addition very Scale model Speaking model Mustangs did ever see recognition lights full-scale bird three circular lights mounted line bottom wing near right tip lights red green amber used display code night friendly antiaircraft gunners would fire Push-Rod Selection Leaves Up InTheAir Its true offer complete line push-rods world thats important reason choose Sullivan push-rods fact once its model doesnt matter other push-rods carly just want yours work best its will Sullivan push-rods designed built maximum strength flexibility dependability Theyre also light wei t well simply best canuy Which means get widest choice Sullivan 1 PRODUCIS push-rods get best choice PD BOx5166 Baltimore MD 21224 Getting Better Ideas Off Ground intrepid P-Si pilot other US warbirds also recognition lights Have ever seen WW II fighter model equipped tail-mounted warning radar antenna Secured vertical tail surface radar functioned much same way present-day automotive fuzz buster enemy aircraft slid ideal tail-on firing position tail warning radar would give either visual audible alarm fighters cockpit same alarm would sound/show friendly aircraft tagging behind Finally formation lights blue lights usually mounted upper surface aircraft used reference points aid wingmen maintaining position formation night As said beginning column small details often overlooked Scale modelers Working Giant Scale can duplicate details little difficulty birds will much better ittheyll truly miniature aircraft Doc Pepino has inspiration jovial proprietor Scale Plans & Photo Service 3209 Madison Ave Greensboro NC 27403 has come up video catalog Scale designs 10 bucks Jimll send tape can see drawings fleshand air best part exercise sawbuck can applied price drawings order also has new paper June 1992 139 / Slow PokerlBuddenbohm Continued page 66 top bottom fuselage will help control splintering Assembly Flying Glue pylon wing fuselage Glue stabilizer rudder fuselage Temporarily attach pylon fuselage two pieces drafting tape Add nose weight achieve level glide two effective ways turn modelwith rudder offset tip weight flight pattern low-ceiling gliders either left-left right-right youre right-handed recommend left-left test glide Begin small amount rudder turn model doesnt circle tightly enough add weight left wing amount wing incidence required depends upon flexibility flaps test throw model hard straight ahead its neither angled upward downward nor banked left right craft should stay level eventually slowing turning glide circle dives remove wing sand incidence bottom pylon climbs slows decrease incidence wing shows tendency barrel roll reduce rudder offset Keep fuselage line launch its scale kits engines accessories want & want em now got emFrank Tiano .boat car kits hardto-find pails & anything need want.its stockJoe Manzella SHIPPED WITHIN 24 DES 1387 N Military Trail West Palm Beach FL 33409 407-688-13669 angle throughout throwing motion dont swing model through arc motion should somewhat like throwing dart idea throw hard can putting little stress wings possible Otherwise youll likely using lot instant glue repairs endurance flights best launch about 700 upward no left right bank should enough rudder offset initiate glide circle just top climb reached Make sure youre completely satisfied incidence before gluing pylon fuselage have questions Ill happy respond Send SASE 5652 Meinhardt Rd Westminster CA 92683 again may simply want share experiences low-ceiling gliders Id pleased hear about uration/Murphy Continued page 71 available same price knew US Postal Service would soon charging shipping item worth Progress Hank further informs us early Tatone timers used longer screw retain back cover 5mm-length black replacement Part #21145-5 also available $95 plus $1 shipping Hank says KSB timers use same screw retain both back cover faceplate have lot timers fix can get 100 screws bulk-packed June 1992 159 LIGHTING SYSTEMS THE ORIGINALS. Still Best #RED 01Programmable Flashing Navigation Lights 9V$2495 *RED 02Strobe Light Adi Rate 9V$1995 #RED 03Landing Lights 48V$3995 #RED 04Mars Rotating Beacon Adi Rate 9 V$1995 *RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 *RED 23Real Strobe Light true zenon strobe 3V$2995 SEE YOUR DEALER 5TAMPED ENVELOPE FOR RAM INFO unavailable locally send check money order full credit card info cost item plus $400 $500 foreignfor immediate shipment Include full address UPS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 responding advertisers mention read aboutiXHAAJST SYSTEMS FOA MTTEN AIRCHAFT AND ULTIMATE EWE SIUCONE CO4JPLERS AND TAIL PIPES ALSO AVAILABLE ModelAviation CPU CS MCrE FCS If0iSAATU4 OAiCS HOMSS IJITED RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 HOBBY SUPER STORE
Edition: Model Aviation - 1992/06
Page Numbers: 64, 65, 66, 139, 159
No stranger making waves IHLG author has another winner high-tech 24112-in-wingspan 62-gm national Indoor Category Open record holder U Stan Buddenbohm Above Make up simple kit parts add materials shown before know youll tickling rafters own highly competitive little Slow Poker Above right model dives adjust wing incidence sanding bottom pylon shown Below right Persuading flaps assume correct airfoil easy Simply rub flap between thumb fingers bending well past desired camberno water forms needed 64 Model Aviation completed Slow Poker two its latest AMA records series high-tech Indoor Hand-Launched Gliders has dominated field since 1986 Slow Poker makes rare outdoor appear ance authorldesigner Buddenbohm FEW aspects Free Flight beautiful sight Indoor Hand-Launched Glider IHLG gracefully smoothly ever slowly descending 26-foot ceiling full 47 seconds Three-quarters second can stretch eternity pleasure youre watching glider circle lazily overhead Slow Poker latest series high-tech IHLGs begun several years ago has dominated field since 1986 model delivers 47-second flights regular basis holds current national Indoor Category Open record 948 seconds two flights first Slow Poker make its mark did besting Phedon Tsiknopouloss all-wood record later version overturned Mark Drela s high-tech record 828-second flight Making small improvements glider boosted record 851 seconds very large jump current record Indoor HLG few seconds very large jump came about rethinking design trim philosophies Like successful low-ceiling gliders since Stoy brothers Coot Slow Poker uses flapper wing type wing designed achieve lower drag having airfoil flatten launch increase wing incidence however used undercamber weaker flaps conventional flapper wing higher incidence results quicker recovery better glide also increased stabilizer area Most designs attempt save weight using small stabilizers Very small stabilizers however cause small barely perceptible oscillations glide speed reducing flight time dramatically Construction building techniques described below new practice little before using carefully selected wood recommend using instant glue throughout Wood selection critical building IHLG creative persistent search very best Check hobby shops train shops craft stores mail order catalogs Sometimes can use part larger piece other cases can edge join several narrower pieces Neither strategy has prevented producing recordbreaking models especially careful selecting wood flaps wood must under five-pound-density A-grain flaps will too rigid Wing Build right left panels separately Glue C-grain portion flaps follows True edges straightedge large straight sanding block Place pieces bottom side down waxed paper Butt edges put drop glue approximately one-inch intervals along joint Turn panel over Correct irregularities joint sanding bottom flat Apply glue along full length bottom Dont get carried away glue adds weight Shape wing shown Add plywood leading edge protector see Zenith December 1991 Model Aviation Sand thickness taper center tip Begin sanding airfoil conventional Hand-Launched Glider add unusual contours essential obtaining correct airfoil after flaps have bent best done narrow sanding block time have sanded two-thirds length span shape will gradually have changed conventional glider airfoil no dips Shape dihedral joint glue wing halves together glue flaps together dihedral joint Two forms carbon fiber used Slow Poker carbon fiber tow wing 003 carbon fiber sheet fuselage June1992 65 achieve best launon tne wont portion 0 tne iow 1oKer wing must C-grain stiffness flap portion must A-grain flexibility Cross-dihedral wing stiffeners made lightly misting loose carbon fiber tow squeezing flat between thumb finger Just two pieces drafting tape hold pylon fuselage during trim flights Full-Size Plans Available. See Page 180 SANDED AIRFOIL BOTH THE DIP BEHIND THE HIGH POINT & THE UNDERCAMBER FADE OUT BY 2/3 SPAN BENDING FLAPS RUB BETWEEN THUMB & FINGERS WHILE BENDING WELL PAST DESIRED CAMBER 015 5 lb C-GRAINj/f HIGH POINT INS 41bA-GRAIN FLAPS 4 lb C- GRAIN CARBON FIBER TOW TOPS BOTTOM ACROSS DIHEDRAL JOINT ONE STREP OF 1/64 PLYWOOD LE PROTECTION 12 LZKJ FIZKBF1 BY STAN BUDDENBOHM INDOOR CAT NATIONAL RECORD HOLDER 472 478 EEC SPAN 245 LENGTH 18 WEIGHT STAB 5 RUDDER PYLON. BALLAST~ 8 TOTAL GMS 22 NO OFFSETS BUILT-IN INCHES 0 1/2 12 3 DO NOT GLUE FLAPS TOGETHER AT DIHEDRAL JOINT 08 01 56 4 lb C GRAIN 060301 Ii 2 61 5 lb BALSA WITH 003 6 lb C GRAIN.... l I16CARBON FIBER SHEET SIDES08 015 carbon fiber tow stiffeners should applied top bottom across dihedral joint form carbon fiber has best strength-to-weight ratio also somewhat difficult work Cut piece carbon fiber tow length using scissors Hold end lightly spray water squeeze flat ribbon thumb forefinger Peel off 118-in strip repeat process carbon fiber should easier handle after few minutes drying extra camber flap formed grasping structure between thumb fingers bending well past desired shape sliding hand back forth along span can take minutes hours depending wood Fuselage photos slender stick laminated carbon fiber balsa intimidate take heart Building fuselage will lot less difficult follow correct procedures Begin 18 x 2-in balsa sheet Sand thickness taper entire sheet Its much easier handle piece large work small finished size Cut two strips 003 carbon fiber sheet 1/4 x 18 Sand shine off side carbon sheet achieve good carbon-to-wood glue joint Use sanding block avoid splinters move block away hand holding carbon fiber prevent material buckling Wipe off dust Affix two-inch piece drafting tape last quarter-inch end shiny side carbon fiber strip Turn carbon fiber sheet dull side up over waxed paper-covered building board run large bead thin instant glue along its entire length Work quicklyyou have 30 seconds less position carbon fiber strip Use tape handles pick up strip turn over hold just above edge fuselage sheet Lower carbon fiber until contacts balsa press along entire length Keep some sort shield between finger carbon fiber avoid splinters avoid getting glued model waxed paper works well carbon fiber strip cannot repositioned once has made contact balsa youll have get right first time Turn fuselage sheet over attach second carbon fiber strip Straighten carbon fiber-trimmed edge sanding block will become bottom completed fuselage Slice laminated portion larger piece shape final fuselage profile save weight sand rest shine carbon fiber small amount glue along Continued page 159 66 Model Aviation Slow Poker Type Indoor Hand-Launched Glider Wingspan 241/2 Wing area available Expected flying weight 62 gm Type construction Sheet balsa carbon-fiber tow reinforcement Type covering/finish recommended None recollects day smiling invited friends look first upside down flight USSR take pictures began flying Helicopter about 165 yards up keeping model air level got upside down turned Invert switch being disconcerted nervous forgot increase engines revolutions model slowly descended 55 yards level ground Sergey righted model flew up 165 yards second time Now sure mistake sure knew what time turned model upside down decreasing engines revolutions can imagine what happened Blades rotor bent broke beautiful bird crashed ground ended first step trial ended failure terrific photos memorable event Sometime later Sergeys Finnish friend sent him gyro improvements went Since 1982 Amelin has built six model Helicopters improvement over last latest model incorporates sum experience everything Sergey has read seen embodied Only few details made plastic Sergey usually makes everything metal technology produce details out plastic has mastered enterprise Harkov City Talking Sergey about perspective RC events developing Russia Ive learned lots people want fly RC plenty problems try acquire serial models reliable RC systems Modelers would rather buy serial models build themselvesmaking mistakes getting experience having no time flying Also modelers want contestsnot just FAI events contests would good beginnerssimple events give new fliers chance practice knows maybe enthusiasts can make some changes maybe sometime will contests between Americans Russians flying Helicopters Right now Helis still exotic thing Russia Sergey Amelin working change RC Giant/DeVries Continued page 53 P-Si pilot wanted launch flare hooked up pistol mount pulled trigger Certainly hole would make fine addition very Scale model Speaking model Mustangs did ever see recognition lights full-scale bird three circular lights mounted line bottom wing near right tip lights red green amber used display code night friendly antiaircraft gunners would fire Push-Rod Selection Leaves Up InTheAir Its true offer complete line push-rods world thats important reason choose Sullivan push-rods fact once its model doesnt matter other push-rods carly just want yours work best its will Sullivan push-rods designed built maximum strength flexibility dependability Theyre also light wei t well simply best canuy Which means get widest choice Sullivan 1 PRODUCIS push-rods get best choice PD BOx5166 Baltimore MD 21224 Getting Better Ideas Off Ground intrepid P-Si pilot other US warbirds also recognition lights Have ever seen WW II fighter model equipped tail-mounted warning radar antenna Secured vertical tail surface radar functioned much same way present-day automotive fuzz buster enemy aircraft slid ideal tail-on firing position tail warning radar would give either visual audible alarm fighters cockpit same alarm would sound/show friendly aircraft tagging behind Finally formation lights blue lights usually mounted upper surface aircraft used reference points aid wingmen maintaining position formation night As said beginning column small details often overlooked Scale modelers Working Giant Scale can duplicate details little difficulty birds will much better ittheyll truly miniature aircraft Doc Pepino has inspiration jovial proprietor Scale Plans & Photo Service 3209 Madison Ave Greensboro NC 27403 has come up video catalog Scale designs 10 bucks Jimll send tape can see drawings fleshand air best part exercise sawbuck can applied price drawings order also has new paper June 1992 139 / Slow PokerlBuddenbohm Continued page 66 top bottom fuselage will help control splintering Assembly Flying Glue pylon wing fuselage Glue stabilizer rudder fuselage Temporarily attach pylon fuselage two pieces drafting tape Add nose weight achieve level glide two effective ways turn modelwith rudder offset tip weight flight pattern low-ceiling gliders either left-left right-right youre right-handed recommend left-left test glide Begin small amount rudder turn model doesnt circle tightly enough add weight left wing amount wing incidence required depends upon flexibility flaps test throw model hard straight ahead its neither angled upward downward nor banked left right craft should stay level eventually slowing turning glide circle dives remove wing sand incidence bottom pylon climbs slows decrease incidence wing shows tendency barrel roll reduce rudder offset Keep fuselage line launch its scale kits engines accessories want & want em now got emFrank Tiano .boat car kits hardto-find pails & anything need want.its stockJoe Manzella SHIPPED WITHIN 24 DES 1387 N Military Trail West Palm Beach FL 33409 407-688-13669 angle throughout throwing motion dont swing model through arc motion should somewhat like throwing dart idea throw hard can putting little stress wings possible Otherwise youll likely using lot instant glue repairs endurance flights best launch about 700 upward no left right bank should enough rudder offset initiate glide circle just top climb reached Make sure youre completely satisfied incidence before gluing pylon fuselage have questions Ill happy respond Send SASE 5652 Meinhardt Rd Westminster CA 92683 again may simply want share experiences low-ceiling gliders Id pleased hear about uration/Murphy Continued page 71 available same price knew US Postal Service would soon charging shipping item worth Progress Hank further informs us early Tatone timers used longer screw retain back cover 5mm-length black replacement Part #21145-5 also available $95 plus $1 shipping Hank says KSB timers use same screw retain both back cover faceplate have lot timers fix can get 100 screws bulk-packed June 1992 159 LIGHTING SYSTEMS THE ORIGINALS. Still Best #RED 01Programmable Flashing Navigation Lights 9V$2495 *RED 02Strobe Light Adi Rate 9V$1995 #RED 03Landing Lights 48V$3995 #RED 04Mars Rotating Beacon Adi Rate 9 V$1995 *RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 *RED 23Real Strobe Light true zenon strobe 3V$2995 SEE YOUR DEALER 5TAMPED ENVELOPE FOR RAM INFO unavailable locally send check money order full credit card info cost item plus $400 $500 foreignfor immediate shipment Include full address UPS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 responding advertisers mention read aboutiXHAAJST SYSTEMS FOA MTTEN AIRCHAFT AND ULTIMATE EWE SIUCONE CO4JPLERS AND TAIL PIPES ALSO AVAILABLE ModelAviation CPU CS MCrE FCS If0iSAATU4 OAiCS HOMSS IJITED RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 HOBBY SUPER STORE
Edition: Model Aviation - 1992/06
Page Numbers: 64, 65, 66, 139, 159
No stranger making waves IHLG author has another winner high-tech 24112-in-wingspan 62-gm national Indoor Category Open record holder U Stan Buddenbohm Above Make up simple kit parts add materials shown before know youll tickling rafters own highly competitive little Slow Poker Above right model dives adjust wing incidence sanding bottom pylon shown Below right Persuading flaps assume correct airfoil easy Simply rub flap between thumb fingers bending well past desired camberno water forms needed 64 Model Aviation completed Slow Poker two its latest AMA records series high-tech Indoor Hand-Launched Gliders has dominated field since 1986 Slow Poker makes rare outdoor appear ance authorldesigner Buddenbohm FEW aspects Free Flight beautiful sight Indoor Hand-Launched Glider IHLG gracefully smoothly ever slowly descending 26-foot ceiling full 47 seconds Three-quarters second can stretch eternity pleasure youre watching glider circle lazily overhead Slow Poker latest series high-tech IHLGs begun several years ago has dominated field since 1986 model delivers 47-second flights regular basis holds current national Indoor Category Open record 948 seconds two flights first Slow Poker make its mark did besting Phedon Tsiknopouloss all-wood record later version overturned Mark Drela s high-tech record 828-second flight Making small improvements glider boosted record 851 seconds very large jump current record Indoor HLG few seconds very large jump came about rethinking design trim philosophies Like successful low-ceiling gliders since Stoy brothers Coot Slow Poker uses flapper wing type wing designed achieve lower drag having airfoil flatten launch increase wing incidence however used undercamber weaker flaps conventional flapper wing higher incidence results quicker recovery better glide also increased stabilizer area Most designs attempt save weight using small stabilizers Very small stabilizers however cause small barely perceptible oscillations glide speed reducing flight time dramatically Construction building techniques described below new practice little before using carefully selected wood recommend using instant glue throughout Wood selection critical building IHLG creative persistent search very best Check hobby shops train shops craft stores mail order catalogs Sometimes can use part larger piece other cases can edge join several narrower pieces Neither strategy has prevented producing recordbreaking models especially careful selecting wood flaps wood must under five-pound-density A-grain flaps will too rigid Wing Build right left panels separately Glue C-grain portion flaps follows True edges straightedge large straight sanding block Place pieces bottom side down waxed paper Butt edges put drop glue approximately one-inch intervals along joint Turn panel over Correct irregularities joint sanding bottom flat Apply glue along full length bottom Dont get carried away glue adds weight Shape wing shown Add plywood leading edge protector see Zenith December 1991 Model Aviation Sand thickness taper center tip Begin sanding airfoil conventional Hand-Launched Glider add unusual contours essential obtaining correct airfoil after flaps have bent best done narrow sanding block time have sanded two-thirds length span shape will gradually have changed conventional glider airfoil no dips Shape dihedral joint glue wing halves together glue flaps together dihedral joint Two forms carbon fiber used Slow Poker carbon fiber tow wing 003 carbon fiber sheet fuselage June1992 65 achieve best launon tne wont portion 0 tne iow 1oKer wing must C-grain stiffness flap portion must A-grain flexibility Cross-dihedral wing stiffeners made lightly misting loose carbon fiber tow squeezing flat between thumb finger Just two pieces drafting tape hold pylon fuselage during trim flights Full-Size Plans Available. See Page 180 SANDED AIRFOIL BOTH THE DIP BEHIND THE HIGH POINT & THE UNDERCAMBER FADE OUT BY 2/3 SPAN BENDING FLAPS RUB BETWEEN THUMB & FINGERS WHILE BENDING WELL PAST DESIRED CAMBER 015 5 lb C-GRAINj/f HIGH POINT INS 41bA-GRAIN FLAPS 4 lb C- GRAIN CARBON FIBER TOW TOPS BOTTOM ACROSS DIHEDRAL JOINT ONE STREP OF 1/64 PLYWOOD LE PROTECTION 12 LZKJ FIZKBF1 BY STAN BUDDENBOHM INDOOR CAT NATIONAL RECORD HOLDER 472 478 EEC SPAN 245 LENGTH 18 WEIGHT STAB 5 RUDDER PYLON. BALLAST~ 8 TOTAL GMS 22 NO OFFSETS BUILT-IN INCHES 0 1/2 12 3 DO NOT GLUE FLAPS TOGETHER AT DIHEDRAL JOINT 08 01 56 4 lb C GRAIN 060301 Ii 2 61 5 lb BALSA WITH 003 6 lb C GRAIN.... l I16CARBON FIBER SHEET SIDES08 015 carbon fiber tow stiffeners should applied top bottom across dihedral joint form carbon fiber has best strength-to-weight ratio also somewhat difficult work Cut piece carbon fiber tow length using scissors Hold end lightly spray water squeeze flat ribbon thumb forefinger Peel off 118-in strip repeat process carbon fiber should easier handle after few minutes drying extra camber flap formed grasping structure between thumb fingers bending well past desired shape sliding hand back forth along span can take minutes hours depending wood Fuselage photos slender stick laminated carbon fiber balsa intimidate take heart Building fuselage will lot less difficult follow correct procedures Begin 18 x 2-in balsa sheet Sand thickness taper entire sheet Its much easier handle piece large work small finished size Cut two strips 003 carbon fiber sheet 1/4 x 18 Sand shine off side carbon sheet achieve good carbon-to-wood glue joint Use sanding block avoid splinters move block away hand holding carbon fiber prevent material buckling Wipe off dust Affix two-inch piece drafting tape last quarter-inch end shiny side carbon fiber strip Turn carbon fiber sheet dull side up over waxed paper-covered building board run large bead thin instant glue along its entire length Work quicklyyou have 30 seconds less position carbon fiber strip Use tape handles pick up strip turn over hold just above edge fuselage sheet Lower carbon fiber until contacts balsa press along entire length Keep some sort shield between finger carbon fiber avoid splinters avoid getting glued model waxed paper works well carbon fiber strip cannot repositioned once has made contact balsa youll have get right first time Turn fuselage sheet over attach second carbon fiber strip Straighten carbon fiber-trimmed edge sanding block will become bottom completed fuselage Slice laminated portion larger piece shape final fuselage profile save weight sand rest shine carbon fiber small amount glue along Continued page 159 66 Model Aviation Slow Poker Type Indoor Hand-Launched Glider Wingspan 241/2 Wing area available Expected flying weight 62 gm Type construction Sheet balsa carbon-fiber tow reinforcement Type covering/finish recommended None recollects day smiling invited friends look first upside down flight USSR take pictures began flying Helicopter about 165 yards up keeping model air level got upside down turned Invert switch being disconcerted nervous forgot increase engines revolutions model slowly descended 55 yards level ground Sergey righted model flew up 165 yards second time Now sure mistake sure knew what time turned model upside down decreasing engines revolutions can imagine what happened Blades rotor bent broke beautiful bird crashed ground ended first step trial ended failure terrific photos memorable event Sometime later Sergeys Finnish friend sent him gyro improvements went Since 1982 Amelin has built six model Helicopters improvement over last latest model incorporates sum experience everything Sergey has read seen embodied Only few details made plastic Sergey usually makes everything metal technology produce details out plastic has mastered enterprise Harkov City Talking Sergey about perspective RC events developing Russia Ive learned lots people want fly RC plenty problems try acquire serial models reliable RC systems Modelers would rather buy serial models build themselvesmaking mistakes getting experience having no time flying Also modelers want contestsnot just FAI events contests would good beginnerssimple events give new fliers chance practice knows maybe enthusiasts can make some changes maybe sometime will contests between Americans Russians flying Helicopters Right now Helis still exotic thing Russia Sergey Amelin working change RC Giant/DeVries Continued page 53 P-Si pilot wanted launch flare hooked up pistol mount pulled trigger Certainly hole would make fine addition very Scale model Speaking model Mustangs did ever see recognition lights full-scale bird three circular lights mounted line bottom wing near right tip lights red green amber used display code night friendly antiaircraft gunners would fire Push-Rod Selection Leaves Up InTheAir Its true offer complete line push-rods world thats important reason choose Sullivan push-rods fact once its model doesnt matter other push-rods carly just want yours work best its will Sullivan push-rods designed built maximum strength flexibility dependability Theyre also light wei t well simply best canuy Which means get widest choice Sullivan 1 PRODUCIS push-rods get best choice PD BOx5166 Baltimore MD 21224 Getting Better Ideas Off Ground intrepid P-Si pilot other US warbirds also recognition lights Have ever seen WW II fighter model equipped tail-mounted warning radar antenna Secured vertical tail surface radar functioned much same way present-day automotive fuzz buster enemy aircraft slid ideal tail-on firing position tail warning radar would give either visual audible alarm fighters cockpit same alarm would sound/show friendly aircraft tagging behind Finally formation lights blue lights usually mounted upper surface aircraft used reference points aid wingmen maintaining position formation night As said beginning column small details often overlooked Scale modelers Working Giant Scale can duplicate details little difficulty birds will much better ittheyll truly miniature aircraft Doc Pepino has inspiration jovial proprietor Scale Plans & Photo Service 3209 Madison Ave Greensboro NC 27403 has come up video catalog Scale designs 10 bucks Jimll send tape can see drawings fleshand air best part exercise sawbuck can applied price drawings order also has new paper June 1992 139 / Slow PokerlBuddenbohm Continued page 66 top bottom fuselage will help control splintering Assembly Flying Glue pylon wing fuselage Glue stabilizer rudder fuselage Temporarily attach pylon fuselage two pieces drafting tape Add nose weight achieve level glide two effective ways turn modelwith rudder offset tip weight flight pattern low-ceiling gliders either left-left right-right youre right-handed recommend left-left test glide Begin small amount rudder turn model doesnt circle tightly enough add weight left wing amount wing incidence required depends upon flexibility flaps test throw model hard straight ahead its neither angled upward downward nor banked left right craft should stay level eventually slowing turning glide circle dives remove wing sand incidence bottom pylon climbs slows decrease incidence wing shows tendency barrel roll reduce rudder offset Keep fuselage line launch its scale kits engines accessories want & want em now got emFrank Tiano .boat car kits hardto-find pails & anything need want.its stockJoe Manzella SHIPPED WITHIN 24 DES 1387 N Military Trail West Palm Beach FL 33409 407-688-13669 angle throughout throwing motion dont swing model through arc motion should somewhat like throwing dart idea throw hard can putting little stress wings possible Otherwise youll likely using lot instant glue repairs endurance flights best launch about 700 upward no left right bank should enough rudder offset initiate glide circle just top climb reached Make sure youre completely satisfied incidence before gluing pylon fuselage have questions Ill happy respond Send SASE 5652 Meinhardt Rd Westminster CA 92683 again may simply want share experiences low-ceiling gliders Id pleased hear about uration/Murphy Continued page 71 available same price knew US Postal Service would soon charging shipping item worth Progress Hank further informs us early Tatone timers used longer screw retain back cover 5mm-length black replacement Part #21145-5 also available $95 plus $1 shipping Hank says KSB timers use same screw retain both back cover faceplate have lot timers fix can get 100 screws bulk-packed June 1992 159 LIGHTING SYSTEMS THE ORIGINALS. Still Best #RED 01Programmable Flashing Navigation Lights 9V$2495 *RED 02Strobe Light Adi Rate 9V$1995 #RED 03Landing Lights 48V$3995 #RED 04Mars Rotating Beacon Adi Rate 9 V$1995 *RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 *RED 23Real Strobe Light true zenon strobe 3V$2995 SEE YOUR DEALER 5TAMPED ENVELOPE FOR RAM INFO unavailable locally send check money order full credit card info cost item plus $400 $500 foreignfor immediate shipment Include full address UPS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 responding advertisers mention read aboutiXHAAJST SYSTEMS FOA MTTEN AIRCHAFT AND ULTIMATE EWE SIUCONE CO4JPLERS AND TAIL PIPES ALSO AVAILABLE ModelAviation CPU CS MCrE FCS If0iSAATU4 OAiCS HOMSS IJITED RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 HOBBY SUPER STORE
Edition: Model Aviation - 1992/06
Page Numbers: 64, 65, 66, 139, 159
No stranger making waves IHLG author has another winner high-tech 24112-in-wingspan 62-gm national Indoor Category Open record holder U Stan Buddenbohm Above Make up simple kit parts add materials shown before know youll tickling rafters own highly competitive little Slow Poker Above right model dives adjust wing incidence sanding bottom pylon shown Below right Persuading flaps assume correct airfoil easy Simply rub flap between thumb fingers bending well past desired camberno water forms needed 64 Model Aviation completed Slow Poker two its latest AMA records series high-tech Indoor Hand-Launched Gliders has dominated field since 1986 Slow Poker makes rare outdoor appear ance authorldesigner Buddenbohm FEW aspects Free Flight beautiful sight Indoor Hand-Launched Glider IHLG gracefully smoothly ever slowly descending 26-foot ceiling full 47 seconds Three-quarters second can stretch eternity pleasure youre watching glider circle lazily overhead Slow Poker latest series high-tech IHLGs begun several years ago has dominated field since 1986 model delivers 47-second flights regular basis holds current national Indoor Category Open record 948 seconds two flights first Slow Poker make its mark did besting Phedon Tsiknopouloss all-wood record later version overturned Mark Drela s high-tech record 828-second flight Making small improvements glider boosted record 851 seconds very large jump current record Indoor HLG few seconds very large jump came about rethinking design trim philosophies Like successful low-ceiling gliders since Stoy brothers Coot Slow Poker uses flapper wing type wing designed achieve lower drag having airfoil flatten launch increase wing incidence however used undercamber weaker flaps conventional flapper wing higher incidence results quicker recovery better glide also increased stabilizer area Most designs attempt save weight using small stabilizers Very small stabilizers however cause small barely perceptible oscillations glide speed reducing flight time dramatically Construction building techniques described below new practice little before using carefully selected wood recommend using instant glue throughout Wood selection critical building IHLG creative persistent search very best Check hobby shops train shops craft stores mail order catalogs Sometimes can use part larger piece other cases can edge join several narrower pieces Neither strategy has prevented producing recordbreaking models especially careful selecting wood flaps wood must under five-pound-density A-grain flaps will too rigid Wing Build right left panels separately Glue C-grain portion flaps follows True edges straightedge large straight sanding block Place pieces bottom side down waxed paper Butt edges put drop glue approximately one-inch intervals along joint Turn panel over Correct irregularities joint sanding bottom flat Apply glue along full length bottom Dont get carried away glue adds weight Shape wing shown Add plywood leading edge protector see Zenith December 1991 Model Aviation Sand thickness taper center tip Begin sanding airfoil conventional Hand-Launched Glider add unusual contours essential obtaining correct airfoil after flaps have bent best done narrow sanding block time have sanded two-thirds length span shape will gradually have changed conventional glider airfoil no dips Shape dihedral joint glue wing halves together glue flaps together dihedral joint Two forms carbon fiber used Slow Poker carbon fiber tow wing 003 carbon fiber sheet fuselage June1992 65 achieve best launon tne wont portion 0 tne iow 1oKer wing must C-grain stiffness flap portion must A-grain flexibility Cross-dihedral wing stiffeners made lightly misting loose carbon fiber tow squeezing flat between thumb finger Just two pieces drafting tape hold pylon fuselage during trim flights Full-Size Plans Available. See Page 180 SANDED AIRFOIL BOTH THE DIP BEHIND THE HIGH POINT & THE UNDERCAMBER FADE OUT BY 2/3 SPAN BENDING FLAPS RUB BETWEEN THUMB & FINGERS WHILE BENDING WELL PAST DESIRED CAMBER 015 5 lb C-GRAINj/f HIGH POINT INS 41bA-GRAIN FLAPS 4 lb C- GRAIN CARBON FIBER TOW TOPS BOTTOM ACROSS DIHEDRAL JOINT ONE STREP OF 1/64 PLYWOOD LE PROTECTION 12 LZKJ FIZKBF1 BY STAN BUDDENBOHM INDOOR CAT NATIONAL RECORD HOLDER 472 478 EEC SPAN 245 LENGTH 18 WEIGHT STAB 5 RUDDER PYLON. BALLAST~ 8 TOTAL GMS 22 NO OFFSETS BUILT-IN INCHES 0 1/2 12 3 DO NOT GLUE FLAPS TOGETHER AT DIHEDRAL JOINT 08 01 56 4 lb C GRAIN 060301 Ii 2 61 5 lb BALSA WITH 003 6 lb C GRAIN.... l I16CARBON FIBER SHEET SIDES08 015 carbon fiber tow stiffeners should applied top bottom across dihedral joint form carbon fiber has best strength-to-weight ratio also somewhat difficult work Cut piece carbon fiber tow length using scissors Hold end lightly spray water squeeze flat ribbon thumb forefinger Peel off 118-in strip repeat process carbon fiber should easier handle after few minutes drying extra camber flap formed grasping structure between thumb fingers bending well past desired shape sliding hand back forth along span can take minutes hours depending wood Fuselage photos slender stick laminated carbon fiber balsa intimidate take heart Building fuselage will lot less difficult follow correct procedures Begin 18 x 2-in balsa sheet Sand thickness taper entire sheet Its much easier handle piece large work small finished size Cut two strips 003 carbon fiber sheet 1/4 x 18 Sand shine off side carbon sheet achieve good carbon-to-wood glue joint Use sanding block avoid splinters move block away hand holding carbon fiber prevent material buckling Wipe off dust Affix two-inch piece drafting tape last quarter-inch end shiny side carbon fiber strip Turn carbon fiber sheet dull side up over waxed paper-covered building board run large bead thin instant glue along its entire length Work quicklyyou have 30 seconds less position carbon fiber strip Use tape handles pick up strip turn over hold just above edge fuselage sheet Lower carbon fiber until contacts balsa press along entire length Keep some sort shield between finger carbon fiber avoid splinters avoid getting glued model waxed paper works well carbon fiber strip cannot repositioned once has made contact balsa youll have get right first time Turn fuselage sheet over attach second carbon fiber strip Straighten carbon fiber-trimmed edge sanding block will become bottom completed fuselage Slice laminated portion larger piece shape final fuselage profile save weight sand rest shine carbon fiber small amount glue along Continued page 159 66 Model Aviation Slow Poker Type Indoor Hand-Launched Glider Wingspan 241/2 Wing area available Expected flying weight 62 gm Type construction Sheet balsa carbon-fiber tow reinforcement Type covering/finish recommended None recollects day smiling invited friends look first upside down flight USSR take pictures began flying Helicopter about 165 yards up keeping model air level got upside down turned Invert switch being disconcerted nervous forgot increase engines revolutions model slowly descended 55 yards level ground Sergey righted model flew up 165 yards second time Now sure mistake sure knew what time turned model upside down decreasing engines revolutions can imagine what happened Blades rotor bent broke beautiful bird crashed ground ended first step trial ended failure terrific photos memorable event Sometime later Sergeys Finnish friend sent him gyro improvements went Since 1982 Amelin has built six model Helicopters improvement over last latest model incorporates sum experience everything Sergey has read seen embodied Only few details made plastic Sergey usually makes everything metal technology produce details out plastic has mastered enterprise Harkov City Talking Sergey about perspective RC events developing Russia Ive learned lots people want fly RC plenty problems try acquire serial models reliable RC systems Modelers would rather buy serial models build themselvesmaking mistakes getting experience having no time flying Also modelers want contestsnot just FAI events contests would good beginnerssimple events give new fliers chance practice knows maybe enthusiasts can make some changes maybe sometime will contests between Americans Russians flying Helicopters Right now Helis still exotic thing Russia Sergey Amelin working change RC Giant/DeVries Continued page 53 P-Si pilot wanted launch flare hooked up pistol mount pulled trigger Certainly hole would make fine addition very Scale model Speaking model Mustangs did ever see recognition lights full-scale bird three circular lights mounted line bottom wing near right tip lights red green amber used display code night friendly antiaircraft gunners would fire Push-Rod Selection Leaves Up InTheAir Its true offer complete line push-rods world thats important reason choose Sullivan push-rods fact once its model doesnt matter other push-rods carly just want yours work best its will Sullivan push-rods designed built maximum strength flexibility dependability Theyre also light wei t well simply best canuy Which means get widest choice Sullivan 1 PRODUCIS push-rods get best choice PD BOx5166 Baltimore MD 21224 Getting Better Ideas Off Ground intrepid P-Si pilot other US warbirds also recognition lights Have ever seen WW II fighter model equipped tail-mounted warning radar antenna Secured vertical tail surface radar functioned much same way present-day automotive fuzz buster enemy aircraft slid ideal tail-on firing position tail warning radar would give either visual audible alarm fighters cockpit same alarm would sound/show friendly aircraft tagging behind Finally formation lights blue lights usually mounted upper surface aircraft used reference points aid wingmen maintaining position formation night As said beginning column small details often overlooked Scale modelers Working Giant Scale can duplicate details little difficulty birds will much better ittheyll truly miniature aircraft Doc Pepino has inspiration jovial proprietor Scale Plans & Photo Service 3209 Madison Ave Greensboro NC 27403 has come up video catalog Scale designs 10 bucks Jimll send tape can see drawings fleshand air best part exercise sawbuck can applied price drawings order also has new paper June 1992 139 / Slow PokerlBuddenbohm Continued page 66 top bottom fuselage will help control splintering Assembly Flying Glue pylon wing fuselage Glue stabilizer rudder fuselage Temporarily attach pylon fuselage two pieces drafting tape Add nose weight achieve level glide two effective ways turn modelwith rudder offset tip weight flight pattern low-ceiling gliders either left-left right-right youre right-handed recommend left-left test glide Begin small amount rudder turn model doesnt circle tightly enough add weight left wing amount wing incidence required depends upon flexibility flaps test throw model hard straight ahead its neither angled upward downward nor banked left right craft should stay level eventually slowing turning glide circle dives remove wing sand incidence bottom pylon climbs slows decrease incidence wing shows tendency barrel roll reduce rudder offset Keep fuselage line launch its scale kits engines accessories want & want em now got emFrank Tiano .boat car kits hardto-find pails & anything need want.its stockJoe Manzella SHIPPED WITHIN 24 DES 1387 N Military Trail West Palm Beach FL 33409 407-688-13669 angle throughout throwing motion dont swing model through arc motion should somewhat like throwing dart idea throw hard can putting little stress wings possible Otherwise youll likely using lot instant glue repairs endurance flights best launch about 700 upward no left right bank should enough rudder offset initiate glide circle just top climb reached Make sure youre completely satisfied incidence before gluing pylon fuselage have questions Ill happy respond Send SASE 5652 Meinhardt Rd Westminster CA 92683 again may simply want share experiences low-ceiling gliders Id pleased hear about uration/Murphy Continued page 71 available same price knew US Postal Service would soon charging shipping item worth Progress Hank further informs us early Tatone timers used longer screw retain back cover 5mm-length black replacement Part #21145-5 also available $95 plus $1 shipping Hank says KSB timers use same screw retain both back cover faceplate have lot timers fix can get 100 screws bulk-packed June 1992 159 LIGHTING SYSTEMS THE ORIGINALS. Still Best #RED 01Programmable Flashing Navigation Lights 9V$2495 *RED 02Strobe Light Adi Rate 9V$1995 #RED 03Landing Lights 48V$3995 #RED 04Mars Rotating Beacon Adi Rate 9 V$1995 *RED 05Marine Navigation Lights nonflashing9V$1095 *RED 06Sky Lights 18 Light Set 9 V$2495 #RED 14Big Airplane Navigation Lights 9V$2495 *RED 16Econo Landing Lights brightest 9V$1995 *RED 23Real Strobe Light true zenon strobe 3V$2995 SEE YOUR DEALER 5TAMPED ENVELOPE FOR RAM INFO unavailable locally send check money order full credit card info cost item plus $400 $500 foreignfor immediate shipment Include full address UPS Sorry no COD Ram 229 E Rollins Rd d Lake Beach IL 60073 ADVANCED AERO PRODUCTS ~YS&OSSURPASS 120 responding advertisers mention read aboutiXHAAJST SYSTEMS FOA MTTEN AIRCHAFT AND ULTIMATE EWE SIUCONE CO4JPLERS AND TAIL PIPES ALSO AVAILABLE ModelAviation CPU CS MCrE FCS If0iSAATU4 OAiCS HOMSS IJITED RT 1 BOX 365-C ANNA TX 75409 p14 924-3940 HOBBY SUPER STORE