PIECES IS composite approach have taken combined make much two different models added own prop better model have come up what think very fine Pieces will fly best times go up Easy B must thank Pete Andrews Ron dramatically weight goes down first Roberti two fine Easy B designs feel ship weighed 14 grams flew eight minutes 40-ft ceiling greater care wood selection building techniques latest Pieces weighs 68 grams has flown 21 minutes 180-ft hangar Akron Pieces won 1980 Nats time 1644 64 ft 85 grams no doubt ship winner model uses Pete Andrews motor stick tail boom stab rudder Ron Robertis wing like think heart model own prop Construction Lets start constructing wing Cut out cardboard template cutting small triangles out ribs meet wing spars use old soap cartons templates Cut some 1-in squares scrap left over will used later hold spars place against template since cannot put pins wooden parts hold place sure make template 1/16-in undersize chord finished wing will oversized always use 1/32-in spars wings balsa stripper makes spar cutting bit easier can cut good straightedge very sharp razor blade first attempt Indoor start out 6- 7-lb wood spars Make 032 x 062 A- B-grain 64 Model Aviation whove never tried before heres what set cardboard templates looks like FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 WING RIBS 0325032 MAIN SPARS 032 ItObS TIP SPARS052 X062 TAPERED TO 0322032 WING POST LOCATION NO CENTER RIB STAB SPARS 0323032STAB RIBS 032 3032 4 WING P0STSIhb ROUND tTISSUE WING SOCKETS~ MOTOR STEK 3/BTAPERED TO I/SAT FRONTANDREAR MOTOR STICKJ2E THOK TAPERED I/IbAT FRONT AND REAR GOING POST L0CATIONS~ PIECES EASY-B-DESIGNEOAND DRAWN BY WALTER I/AN GORDER SlAB TILT WING RIB TEMPLATE STAR RIB TEMPLATE PROP TEMPLATE PROP SIZE 2 OBMETER S2ZPITCR BLADES ea RUDDER OUTLINE 032v 032 PROP SPAR 070 ROUND TAPEREE TO 032 ATTRETIP TAIL BOOM OFFSET I/4FOR LEFT TURN TiP SI IDERAL 0123 II IN ThILROOMOBOSJAPERED TO 032S9 AITIP balsa Cut tip spars 032 x 062 tapered 032 square tip Make template cutting ribs like use little thicker cardboard hold Onto slice ribs Use 6-or 7-lb C-grain balsa always make up few extra ribs seems always manage break rib two Make ribs 032 x 03 2 use pane glass work surface cutting sliced ribs Lay spars up against template use 1-in squares pinned hold place Make sure rib fits snug enough keep falling over keeps airfoil same helps minimize warps caused improper fit Let wing dry overnight Light strong cement must indoor building use Ambroid cement thinned 50/50 acetone cement use heavier model will Cut bevel dihedral break points will have good fit Prop up tip 1 Make sure eBch side exactly same Let dry overnight stab rudder constructed same manner wing Spars stab rudder outline 032 x 032 square cut 6-lb wood Stab ribs 032 x 032 square same sheet wing ribs Put piece wax paper building board pin rudder template down wax paper 032 square should soaked hot tap water 10 minutes Lay flat board next template carefully pull around shape template Hold place some handy 1-in squares used wing Let dry overnight tail boom made 6-lb A- B-grain balsa 080 square tapered down about 032 square tip motor stick made piece 6-lb stock 16 x 9 long Cut sand shape plan Use light dual thrust bear ing available favorite Indoor supplier rear hook bent 015 wire can glued now sure bend rear hook up end shown plans motor completely unwinds little extra bent-up portion will keep motor falling off Take rudder outline glue tail boom drying tissue wing sockets can made Cut tissue strips about ng Take few drops white glue mix few drops water Lay strip tissue glue Take 1/16-in drill bit roll tissue around smooth end Very care fully slide tissue tube off drill bit place piece wax paoer Let dry January 198265 Pieces flown 1980 Nats Condenser paper covering 85 gin Pieces its lightest incarnation yet Shortened wing posts microfilmcovered 68 grams No bracing No change flying characteristics completely Care must taken covering such light models condenser paper covering material shrinks rather dramatically ex posed heat counter model should covered high temperature possible low-humidity box have built has cured problems encountered first model Heres build Buy cardboard box size can get about $150 local department store size use measures about 24 x 11 x 12 Lay box its side top opening facing Install two 150-watt light bulbs top box Attach piece clear plastic opening front box use four five large thumbtacks hold place Editors note sure bulbs dont touch box could have afire hands DRP use humidity gauge inside box can buy $200 local hardware store Turn lights drop plastic over front half hour humidity will down around 20 30 percent Put part covered box along piece condenser paper half hour remove excess moisture ready cover raise plastic about halfway up can get inside cover part working remove part have covered low-humidity box condenser paper will get limp Since will seldom fly humidity less 20 30 percent model will never warped because Closeup rear hook see text condenser paper Carving prop prop model 12in diameter 22-in pitch Take time because good prop crucial part models performance Make cardboard template blade cut two blades 6-lb 012in C-grain balsa Lightly sand blades No 600 sandpaper very careful sand blades direction prop spar made 6- 7-lb Vs sq x 6 sanded round 070 center tapering 032 tip done taping full sheet 80-grit sandpaper work board another toalarge sandingblock Sand off corners spar Without holding spar sand between two sheets sandpaper using diagonal circular motion spar will come out perfectly round after few strokes same method used making wing posts round Tapering ends prop spar 032 done after getting round tilting sanding block Bob Meuser article Model viation June 1977 prop shaft made 015 wire bent shape plan After shaft put center spar bend end 90-degree angle cut off excess Use drop Hot Stuff secure Soak blades hot tap water 15 minutes Lay prop form can use can bottle jar jug 5- 6-in diameter has smooth sides Lay wet blades form 15 degrees left center Lash form stretch gauze bandage just snug enough hold place Put two three strips masking tape around hold thing place place pre-heated oven 250 degrees 15 20 minutes After everything has cooled down remove blades very carefully Make ajig assemble blades hub 45 degrees 35 inches center hub very important both blades set exactly same angle take time right Attach wing posts wing spar shown plans Make sure posts 90 degrees wing spars perfect alignment other front rear Attach tail boom rudder assembly motor stick -in left rudder -in negative incidence per plan Attach stab -in tilt left turn left side will higher viewed rear model locate CG put prop install loop 045 rubber between prop shaft hook rear hook Make sure fits slight tension Find balance point mark motor stick Locate cement wing post sockets CG 55 percent approximately 165 back leading edge wing model now ready fly Install wing Continued page 131 66 Model Aviation 1 TWO types thrust bearings Top standard made Micro-X bottom pigtail wire bearing made wrapping wire around straight pin Inexpensive carrier made corrugated stor age box Foam rubber blocks glued sides slotted prop storage Top box can also used storage Foam rubber blocks hold tail groups cope changing conditions flying sites Walt has assortment props handy 1213 diameter 2224 pitch Another view Walts transport box Light foam blocks glued walls slotted hold different props would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 64, 65, 66, 131
PIECES IS composite approach have taken combined make much two different models added own prop better model have come up what think very fine Pieces will fly best times go up Easy B must thank Pete Andrews Ron dramatically weight goes down first Roberti two fine Easy B designs feel ship weighed 14 grams flew eight minutes 40-ft ceiling greater care wood selection building techniques latest Pieces weighs 68 grams has flown 21 minutes 180-ft hangar Akron Pieces won 1980 Nats time 1644 64 ft 85 grams no doubt ship winner model uses Pete Andrews motor stick tail boom stab rudder Ron Robertis wing like think heart model own prop Construction Lets start constructing wing Cut out cardboard template cutting small triangles out ribs meet wing spars use old soap cartons templates Cut some 1-in squares scrap left over will used later hold spars place against template since cannot put pins wooden parts hold place sure make template 1/16-in undersize chord finished wing will oversized always use 1/32-in spars wings balsa stripper makes spar cutting bit easier can cut good straightedge very sharp razor blade first attempt Indoor start out 6- 7-lb wood spars Make 032 x 062 A- B-grain 64 Model Aviation whove never tried before heres what set cardboard templates looks like FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 WING RIBS 0325032 MAIN SPARS 032 ItObS TIP SPARS052 X062 TAPERED TO 0322032 WING POST LOCATION NO CENTER RIB STAB SPARS 0323032STAB RIBS 032 3032 4 WING P0STSIhb ROUND tTISSUE WING SOCKETS~ MOTOR STEK 3/BTAPERED TO I/SAT FRONTANDREAR MOTOR STICKJ2E THOK TAPERED I/IbAT FRONT AND REAR GOING POST L0CATIONS~ PIECES EASY-B-DESIGNEOAND DRAWN BY WALTER I/AN GORDER SlAB TILT WING RIB TEMPLATE STAR RIB TEMPLATE PROP TEMPLATE PROP SIZE 2 OBMETER S2ZPITCR BLADES ea RUDDER OUTLINE 032v 032 PROP SPAR 070 ROUND TAPEREE TO 032 ATTRETIP TAIL BOOM OFFSET I/4FOR LEFT TURN TiP SI IDERAL 0123 II IN ThILROOMOBOSJAPERED TO 032S9 AITIP balsa Cut tip spars 032 x 062 tapered 032 square tip Make template cutting ribs like use little thicker cardboard hold Onto slice ribs Use 6-or 7-lb C-grain balsa always make up few extra ribs seems always manage break rib two Make ribs 032 x 03 2 use pane glass work surface cutting sliced ribs Lay spars up against template use 1-in squares pinned hold place Make sure rib fits snug enough keep falling over keeps airfoil same helps minimize warps caused improper fit Let wing dry overnight Light strong cement must indoor building use Ambroid cement thinned 50/50 acetone cement use heavier model will Cut bevel dihedral break points will have good fit Prop up tip 1 Make sure eBch side exactly same Let dry overnight stab rudder constructed same manner wing Spars stab rudder outline 032 x 032 square cut 6-lb wood Stab ribs 032 x 032 square same sheet wing ribs Put piece wax paper building board pin rudder template down wax paper 032 square should soaked hot tap water 10 minutes Lay flat board next template carefully pull around shape template Hold place some handy 1-in squares used wing Let dry overnight tail boom made 6-lb A- B-grain balsa 080 square tapered down about 032 square tip motor stick made piece 6-lb stock 16 x 9 long Cut sand shape plan Use light dual thrust bear ing available favorite Indoor supplier rear hook bent 015 wire can glued now sure bend rear hook up end shown plans motor completely unwinds little extra bent-up portion will keep motor falling off Take rudder outline glue tail boom drying tissue wing sockets can made Cut tissue strips about ng Take few drops white glue mix few drops water Lay strip tissue glue Take 1/16-in drill bit roll tissue around smooth end Very care fully slide tissue tube off drill bit place piece wax paoer Let dry January 198265 Pieces flown 1980 Nats Condenser paper covering 85 gin Pieces its lightest incarnation yet Shortened wing posts microfilmcovered 68 grams No bracing No change flying characteristics completely Care must taken covering such light models condenser paper covering material shrinks rather dramatically ex posed heat counter model should covered high temperature possible low-humidity box have built has cured problems encountered first model Heres build Buy cardboard box size can get about $150 local department store size use measures about 24 x 11 x 12 Lay box its side top opening facing Install two 150-watt light bulbs top box Attach piece clear plastic opening front box use four five large thumbtacks hold place Editors note sure bulbs dont touch box could have afire hands DRP use humidity gauge inside box can buy $200 local hardware store Turn lights drop plastic over front half hour humidity will down around 20 30 percent Put part covered box along piece condenser paper half hour remove excess moisture ready cover raise plastic about halfway up can get inside cover part working remove part have covered low-humidity box condenser paper will get limp Since will seldom fly humidity less 20 30 percent model will never warped because Closeup rear hook see text condenser paper Carving prop prop model 12in diameter 22-in pitch Take time because good prop crucial part models performance Make cardboard template blade cut two blades 6-lb 012in C-grain balsa Lightly sand blades No 600 sandpaper very careful sand blades direction prop spar made 6- 7-lb Vs sq x 6 sanded round 070 center tapering 032 tip done taping full sheet 80-grit sandpaper work board another toalarge sandingblock Sand off corners spar Without holding spar sand between two sheets sandpaper using diagonal circular motion spar will come out perfectly round after few strokes same method used making wing posts round Tapering ends prop spar 032 done after getting round tilting sanding block Bob Meuser article Model viation June 1977 prop shaft made 015 wire bent shape plan After shaft put center spar bend end 90-degree angle cut off excess Use drop Hot Stuff secure Soak blades hot tap water 15 minutes Lay prop form can use can bottle jar jug 5- 6-in diameter has smooth sides Lay wet blades form 15 degrees left center Lash form stretch gauze bandage just snug enough hold place Put two three strips masking tape around hold thing place place pre-heated oven 250 degrees 15 20 minutes After everything has cooled down remove blades very carefully Make ajig assemble blades hub 45 degrees 35 inches center hub very important both blades set exactly same angle take time right Attach wing posts wing spar shown plans Make sure posts 90 degrees wing spars perfect alignment other front rear Attach tail boom rudder assembly motor stick -in left rudder -in negative incidence per plan Attach stab -in tilt left turn left side will higher viewed rear model locate CG put prop install loop 045 rubber between prop shaft hook rear hook Make sure fits slight tension Find balance point mark motor stick Locate cement wing post sockets CG 55 percent approximately 165 back leading edge wing model now ready fly Install wing Continued page 131 66 Model Aviation 1 TWO types thrust bearings Top standard made Micro-X bottom pigtail wire bearing made wrapping wire around straight pin Inexpensive carrier made corrugated stor age box Foam rubber blocks glued sides slotted prop storage Top box can also used storage Foam rubber blocks hold tail groups cope changing conditions flying sites Walt has assortment props handy 1213 diameter 2224 pitch Another view Walts transport box Light foam blocks glued walls slotted hold different props would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 64, 65, 66, 131
PIECES IS composite approach have taken combined make much two different models added own prop better model have come up what think very fine Pieces will fly best times go up Easy B must thank Pete Andrews Ron dramatically weight goes down first Roberti two fine Easy B designs feel ship weighed 14 grams flew eight minutes 40-ft ceiling greater care wood selection building techniques latest Pieces weighs 68 grams has flown 21 minutes 180-ft hangar Akron Pieces won 1980 Nats time 1644 64 ft 85 grams no doubt ship winner model uses Pete Andrews motor stick tail boom stab rudder Ron Robertis wing like think heart model own prop Construction Lets start constructing wing Cut out cardboard template cutting small triangles out ribs meet wing spars use old soap cartons templates Cut some 1-in squares scrap left over will used later hold spars place against template since cannot put pins wooden parts hold place sure make template 1/16-in undersize chord finished wing will oversized always use 1/32-in spars wings balsa stripper makes spar cutting bit easier can cut good straightedge very sharp razor blade first attempt Indoor start out 6- 7-lb wood spars Make 032 x 062 A- B-grain 64 Model Aviation whove never tried before heres what set cardboard templates looks like FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 WING RIBS 0325032 MAIN SPARS 032 ItObS TIP SPARS052 X062 TAPERED TO 0322032 WING POST LOCATION NO CENTER RIB STAB SPARS 0323032STAB RIBS 032 3032 4 WING P0STSIhb ROUND tTISSUE WING SOCKETS~ MOTOR STEK 3/BTAPERED TO I/SAT FRONTANDREAR MOTOR STICKJ2E THOK TAPERED I/IbAT FRONT AND REAR GOING POST L0CATIONS~ PIECES EASY-B-DESIGNEOAND DRAWN BY WALTER I/AN GORDER SlAB TILT WING RIB TEMPLATE STAR RIB TEMPLATE PROP TEMPLATE PROP SIZE 2 OBMETER S2ZPITCR BLADES ea RUDDER OUTLINE 032v 032 PROP SPAR 070 ROUND TAPEREE TO 032 ATTRETIP TAIL BOOM OFFSET I/4FOR LEFT TURN TiP SI IDERAL 0123 II IN ThILROOMOBOSJAPERED TO 032S9 AITIP balsa Cut tip spars 032 x 062 tapered 032 square tip Make template cutting ribs like use little thicker cardboard hold Onto slice ribs Use 6-or 7-lb C-grain balsa always make up few extra ribs seems always manage break rib two Make ribs 032 x 03 2 use pane glass work surface cutting sliced ribs Lay spars up against template use 1-in squares pinned hold place Make sure rib fits snug enough keep falling over keeps airfoil same helps minimize warps caused improper fit Let wing dry overnight Light strong cement must indoor building use Ambroid cement thinned 50/50 acetone cement use heavier model will Cut bevel dihedral break points will have good fit Prop up tip 1 Make sure eBch side exactly same Let dry overnight stab rudder constructed same manner wing Spars stab rudder outline 032 x 032 square cut 6-lb wood Stab ribs 032 x 032 square same sheet wing ribs Put piece wax paper building board pin rudder template down wax paper 032 square should soaked hot tap water 10 minutes Lay flat board next template carefully pull around shape template Hold place some handy 1-in squares used wing Let dry overnight tail boom made 6-lb A- B-grain balsa 080 square tapered down about 032 square tip motor stick made piece 6-lb stock 16 x 9 long Cut sand shape plan Use light dual thrust bear ing available favorite Indoor supplier rear hook bent 015 wire can glued now sure bend rear hook up end shown plans motor completely unwinds little extra bent-up portion will keep motor falling off Take rudder outline glue tail boom drying tissue wing sockets can made Cut tissue strips about ng Take few drops white glue mix few drops water Lay strip tissue glue Take 1/16-in drill bit roll tissue around smooth end Very care fully slide tissue tube off drill bit place piece wax paoer Let dry January 198265 Pieces flown 1980 Nats Condenser paper covering 85 gin Pieces its lightest incarnation yet Shortened wing posts microfilmcovered 68 grams No bracing No change flying characteristics completely Care must taken covering such light models condenser paper covering material shrinks rather dramatically ex posed heat counter model should covered high temperature possible low-humidity box have built has cured problems encountered first model Heres build Buy cardboard box size can get about $150 local department store size use measures about 24 x 11 x 12 Lay box its side top opening facing Install two 150-watt light bulbs top box Attach piece clear plastic opening front box use four five large thumbtacks hold place Editors note sure bulbs dont touch box could have afire hands DRP use humidity gauge inside box can buy $200 local hardware store Turn lights drop plastic over front half hour humidity will down around 20 30 percent Put part covered box along piece condenser paper half hour remove excess moisture ready cover raise plastic about halfway up can get inside cover part working remove part have covered low-humidity box condenser paper will get limp Since will seldom fly humidity less 20 30 percent model will never warped because Closeup rear hook see text condenser paper Carving prop prop model 12in diameter 22-in pitch Take time because good prop crucial part models performance Make cardboard template blade cut two blades 6-lb 012in C-grain balsa Lightly sand blades No 600 sandpaper very careful sand blades direction prop spar made 6- 7-lb Vs sq x 6 sanded round 070 center tapering 032 tip done taping full sheet 80-grit sandpaper work board another toalarge sandingblock Sand off corners spar Without holding spar sand between two sheets sandpaper using diagonal circular motion spar will come out perfectly round after few strokes same method used making wing posts round Tapering ends prop spar 032 done after getting round tilting sanding block Bob Meuser article Model viation June 1977 prop shaft made 015 wire bent shape plan After shaft put center spar bend end 90-degree angle cut off excess Use drop Hot Stuff secure Soak blades hot tap water 15 minutes Lay prop form can use can bottle jar jug 5- 6-in diameter has smooth sides Lay wet blades form 15 degrees left center Lash form stretch gauze bandage just snug enough hold place Put two three strips masking tape around hold thing place place pre-heated oven 250 degrees 15 20 minutes After everything has cooled down remove blades very carefully Make ajig assemble blades hub 45 degrees 35 inches center hub very important both blades set exactly same angle take time right Attach wing posts wing spar shown plans Make sure posts 90 degrees wing spars perfect alignment other front rear Attach tail boom rudder assembly motor stick -in left rudder -in negative incidence per plan Attach stab -in tilt left turn left side will higher viewed rear model locate CG put prop install loop 045 rubber between prop shaft hook rear hook Make sure fits slight tension Find balance point mark motor stick Locate cement wing post sockets CG 55 percent approximately 165 back leading edge wing model now ready fly Install wing Continued page 131 66 Model Aviation 1 TWO types thrust bearings Top standard made Micro-X bottom pigtail wire bearing made wrapping wire around straight pin Inexpensive carrier made corrugated stor age box Foam rubber blocks glued sides slotted prop storage Top box can also used storage Foam rubber blocks hold tail groups cope changing conditions flying sites Walt has assortment props handy 1213 diameter 2224 pitch Another view Walts transport box Light foam blocks glued walls slotted hold different props would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084
Edition: Model Aviation - 1982/01
Page Numbers: 64, 65, 66, 131
PIECES IS composite approach have taken combined make much two different models added own prop better model have come up what think very fine Pieces will fly best times go up Easy B must thank Pete Andrews Ron dramatically weight goes down first Roberti two fine Easy B designs feel ship weighed 14 grams flew eight minutes 40-ft ceiling greater care wood selection building techniques latest Pieces weighs 68 grams has flown 21 minutes 180-ft hangar Akron Pieces won 1980 Nats time 1644 64 ft 85 grams no doubt ship winner model uses Pete Andrews motor stick tail boom stab rudder Ron Robertis wing like think heart model own prop Construction Lets start constructing wing Cut out cardboard template cutting small triangles out ribs meet wing spars use old soap cartons templates Cut some 1-in squares scrap left over will used later hold spars place against template since cannot put pins wooden parts hold place sure make template 1/16-in undersize chord finished wing will oversized always use 1/32-in spars wings balsa stripper makes spar cutting bit easier can cut good straightedge very sharp razor blade first attempt Indoor start out 6- 7-lb wood spars Make 032 x 062 A- B-grain 64 Model Aviation whove never tried before heres what set cardboard templates looks like FULL-SIZE PLANS AVAILABLE . SEE PAGE 140 WING RIBS 0325032 MAIN SPARS 032 ItObS TIP SPARS052 X062 TAPERED TO 0322032 WING POST LOCATION NO CENTER RIB STAB SPARS 0323032STAB RIBS 032 3032 4 WING P0STSIhb ROUND tTISSUE WING SOCKETS~ MOTOR STEK 3/BTAPERED TO I/SAT FRONTANDREAR MOTOR STICKJ2E THOK TAPERED I/IbAT FRONT AND REAR GOING POST L0CATIONS~ PIECES EASY-B-DESIGNEOAND DRAWN BY WALTER I/AN GORDER SlAB TILT WING RIB TEMPLATE STAR RIB TEMPLATE PROP TEMPLATE PROP SIZE 2 OBMETER S2ZPITCR BLADES ea RUDDER OUTLINE 032v 032 PROP SPAR 070 ROUND TAPEREE TO 032 ATTRETIP TAIL BOOM OFFSET I/4FOR LEFT TURN TiP SI IDERAL 0123 II IN ThILROOMOBOSJAPERED TO 032S9 AITIP balsa Cut tip spars 032 x 062 tapered 032 square tip Make template cutting ribs like use little thicker cardboard hold Onto slice ribs Use 6-or 7-lb C-grain balsa always make up few extra ribs seems always manage break rib two Make ribs 032 x 03 2 use pane glass work surface cutting sliced ribs Lay spars up against template use 1-in squares pinned hold place Make sure rib fits snug enough keep falling over keeps airfoil same helps minimize warps caused improper fit Let wing dry overnight Light strong cement must indoor building use Ambroid cement thinned 50/50 acetone cement use heavier model will Cut bevel dihedral break points will have good fit Prop up tip 1 Make sure eBch side exactly same Let dry overnight stab rudder constructed same manner wing Spars stab rudder outline 032 x 032 square cut 6-lb wood Stab ribs 032 x 032 square same sheet wing ribs Put piece wax paper building board pin rudder template down wax paper 032 square should soaked hot tap water 10 minutes Lay flat board next template carefully pull around shape template Hold place some handy 1-in squares used wing Let dry overnight tail boom made 6-lb A- B-grain balsa 080 square tapered down about 032 square tip motor stick made piece 6-lb stock 16 x 9 long Cut sand shape plan Use light dual thrust bear ing available favorite Indoor supplier rear hook bent 015 wire can glued now sure bend rear hook up end shown plans motor completely unwinds little extra bent-up portion will keep motor falling off Take rudder outline glue tail boom drying tissue wing sockets can made Cut tissue strips about ng Take few drops white glue mix few drops water Lay strip tissue glue Take 1/16-in drill bit roll tissue around smooth end Very care fully slide tissue tube off drill bit place piece wax paoer Let dry January 198265 Pieces flown 1980 Nats Condenser paper covering 85 gin Pieces its lightest incarnation yet Shortened wing posts microfilmcovered 68 grams No bracing No change flying characteristics completely Care must taken covering such light models condenser paper covering material shrinks rather dramatically ex posed heat counter model should covered high temperature possible low-humidity box have built has cured problems encountered first model Heres build Buy cardboard box size can get about $150 local department store size use measures about 24 x 11 x 12 Lay box its side top opening facing Install two 150-watt light bulbs top box Attach piece clear plastic opening front box use four five large thumbtacks hold place Editors note sure bulbs dont touch box could have afire hands DRP use humidity gauge inside box can buy $200 local hardware store Turn lights drop plastic over front half hour humidity will down around 20 30 percent Put part covered box along piece condenser paper half hour remove excess moisture ready cover raise plastic about halfway up can get inside cover part working remove part have covered low-humidity box condenser paper will get limp Since will seldom fly humidity less 20 30 percent model will never warped because Closeup rear hook see text condenser paper Carving prop prop model 12in diameter 22-in pitch Take time because good prop crucial part models performance Make cardboard template blade cut two blades 6-lb 012in C-grain balsa Lightly sand blades No 600 sandpaper very careful sand blades direction prop spar made 6- 7-lb Vs sq x 6 sanded round 070 center tapering 032 tip done taping full sheet 80-grit sandpaper work board another toalarge sandingblock Sand off corners spar Without holding spar sand between two sheets sandpaper using diagonal circular motion spar will come out perfectly round after few strokes same method used making wing posts round Tapering ends prop spar 032 done after getting round tilting sanding block Bob Meuser article Model viation June 1977 prop shaft made 015 wire bent shape plan After shaft put center spar bend end 90-degree angle cut off excess Use drop Hot Stuff secure Soak blades hot tap water 15 minutes Lay prop form can use can bottle jar jug 5- 6-in diameter has smooth sides Lay wet blades form 15 degrees left center Lash form stretch gauze bandage just snug enough hold place Put two three strips masking tape around hold thing place place pre-heated oven 250 degrees 15 20 minutes After everything has cooled down remove blades very carefully Make ajig assemble blades hub 45 degrees 35 inches center hub very important both blades set exactly same angle take time right Attach wing posts wing spar shown plans Make sure posts 90 degrees wing spars perfect alignment other front rear Attach tail boom rudder assembly motor stick -in left rudder -in negative incidence per plan Attach stab -in tilt left turn left side will higher viewed rear model locate CG put prop install loop 045 rubber between prop shaft hook rear hook Make sure fits slight tension Find balance point mark motor stick Locate cement wing post sockets CG 55 percent approximately 165 back leading edge wing model now ready fly Install wing Continued page 131 66 Model Aviation 1 TWO types thrust bearings Top standard made Micro-X bottom pigtail wire bearing made wrapping wire around straight pin Inexpensive carrier made corrugated stor age box Foam rubber blocks glued sides slotted prop storage Top box can also used storage Foam rubber blocks hold tail groups cope changing conditions flying sites Walt has assortment props handy 1213 diameter 2224 pitch Another view Walts transport box Light foam blocks glued walls slotted hold different props would suggest timers standpoint least look around before letting Old-Timer loose Some current AMA models dont seem bothered such minimal things wind direction have yet see OldTimer type engine doesnt need bit aligning prior letting er go might also add some modelers fail check obstructions takeoff path ie motorcycles toolboxes people Keep safe Anderson Pylon Just received comment Carl Goldberg regarding Anderson Pylon photo October issue page 60 pointed out Anderson Pylon built 1938 actually followed Valkyrie built 1937 wanted emphasize Anderson actually simplified smaller version Val sequence model designs really Valkyrie/Anderson Pylon/Zipper thinks Anderson actually aptly described forerunner Diamond Zipper have undisputed Authority Clarence Haugh1 RL 5 Box 16 CoeurdAlene ID 83814 Pieces/Van Gorder Continued page 66 prop test glide rubber motor Start Out 0 incidence Make several test glides Adjust wing until get smooth glide prop turning slight nosedown attitude model weighs over gram will require motor 050 x 18 inches model weight gets down near 085 gram will fly 040 045 point model weight goes down takes less rubber get up also helps performance may necessary add wash-in left panel wing test flying will necessary determine much have now completed model has proven good flier much duration get will depend upon familiar become model Fly chance Dont afraid change size length motor Record results will soon find combination will just right model have questions concerning construction adjusting Pieces address 5669 Victoryview Lane Cincinnati Ohio 45238 Please include self-addressed stamped envelope Solar Power/Blakely Continued page 69 times voltage given irradiance obtained voltage current somewhat below respective maxes see graphs Connecting cells parallel batteries provides current cell aimed away directly sun will receive less radiance generate less current Another factor consider temperature solar cells heat up will exposed full sunlight become somewhat less efficient installation design should attempt minimize heat build-up Solar Nomad II Solar Wanderer have used solar cells two Sailplanes Nomad II completed Spring 1978 Wanderer completed Summer 1978 Wanderer NiCds have never conventionally charged plane doesnt have charging jack receptacle has hundreds hours still active service RJL K61 eAmerican made Schnuerle ports eDouble ball bearing ePerry carburetor eForged & domed pistonsuggested 0 Forged &rod Retail 0-ring sealed back cover$14800 Muffler 1 nvestment cast crankcaseIncluded Kraft Engine Warranty Parts & Repair RJL INDUSTRIES PO Box 5654 PASADENA CA 91107 213 359-0016 795-9821 January 1982 131 PUMPS IN ONLY AND OUT 1O HAND OPERA TED DU-BRO PRODUCTS INCORPORATED 480 BONNER ROAD WAUCONDA ILL 60084