CONTROL LINE Dick Perry 6739 Stonecutter Dr Burke VA 22015 GUARDIAN display Since writing last column about AF-2S Grumman Guardian display Pima Air Museum Ive learned another Naval Aviation Museum Pensacola Naval Air Station Florida has Guardian original Navy colors dark blue markings configuration Naval Aviation Museum doubt largest collection aircraft other artifacts dedicated preserving history US naval aviation Although have yet fortunate enough visit myself photographs descriptions have seen indicate Naval Aviation Museum outstanding museum plenty room viewing aircraft display would well worth taking time visit ever vicinity Webra Speed 32 evaluation As promised last column further details Webra Speed 32 RC ABCD engine imported Hobby Dynamics 4105 Fieldstone Rd Champaign IL 61821-8801 engine Schnuerle configuration boost portthe standard configuration modern engines front-intake type two ball bearings crankshaft Webra 32 legal Profile Carrier eventthe reason Im writing about column ABCD designation refers aluminum piston running brass sleeve has chrome plated piston fitted Dykes ring complete string letters engine available two carburetor options TN carburetor standard rotary-barrel carb spraybar adjustable idle mixture type carb familiar Dynamix carburetor slide-valve type spraybar 32 built Webras 28 case 28s bore dimension 185mm 728 stroke increased 195mm 776 provide displacement 323 cu 11% below allowable displacement limit Profile Carrier 36 cu Webra has couple advantages Webra Speed 32s greatest advantage availability cant said often-preferred power plants Profile Carrierthe OS/Tune-Hill 36 K&B 58 Its second advantage its weight Because small case derived engine including carburetor weighs 75 ounces TN carb brings weight 87 ounces Dynamix 92 difference between Webra 32 either 05 JTune-Hill K&B least three ounces few exceptions construction Webra conventional backplate seal accomplished 0-ring fits inside crankcase bore Thus seal effective screws loose fact screws could missing affecting engine accommodate increased stroke channel cut wall crankcase removes about half normal thickness case clear bottom connecting rod other less conventional feature flush head us familiar cylinder heads protrude cylinder bore head Webra Speed 32 sits top cylinder liner does extend liner top piston reaches top liner Continued page 173 84 Model Aviation Abstract This months column includes formation about another Grumman Guardian display detailed description test data Webra Speed 32 ABCO engine Sig runs outstanding meet includes Carrier featured event island used Sig carrier deck adds touch class A6M Zero Jeff Johnson Wichita Kansas powered old SuperTigre G21135 Bill Bischoff photo Bill Bischoffs latest Profile Carrier MO-i uses OS 32 power Foam wing spans 44in Model weighs 32 oz Webras Speed 32 ABCD engine described detail month Dynamix carb two available options Custom Balsa Die Cutting Balsa Sheets74 5/16x 1-48 80 104 1/8x 12x24613 753/8x1-51941053/16x12x24363 3648381/8x 1/41318761/2 x 21061/4x 12x24420 1 1/16 x 228 40 39 1/8 x 3/814 19~76B79 105 107 3/32 x 12x 481004 2 1/16x 332 44 40 1/8x 1/217 2476C108 1/8x 12x481149 3 1/16 X 453 71 41 3/16 X 3/1613 19Balsa Blocks109 3/16X 12X48726 4 3/32x235 50 42 3/16x3/817 216 12 12x48838 5 3/32 x 339 53 43 3/16 x 1/222 3177 1-/ x 262 112 1108 63/32x46792441/4x1/41827782x2 74130 110C 71/8 x 23854451/4 x 3/81930flu VEI AII flC792 x 3 90149SpruceSticks 81/8x35069461/4x1/220 34 803x3 1192253648 91/8 x 477104471/4 x 3/43445813 x 4 1602991111/8 x 1/81723 103/16 x 24462481/4 x 14360 ustom Cut Balsa1121/8 x 1/42128 113/16 x 35879495/16 x 5/162432 Quality Prices 8181131/8 x 3/82333 123/16 x 491121503/8 x 3/827 42AAA Quality Ecuadorian Balsa 81C1143/16 x 3/162939 131/4 x 25172513/8 x 1/23153 Sanded Close Tolerances Balsa Planks361151/4 x 1/43652 141/4 x 37093523/8 x 3/44863 1285 N Union Street821 x21571161/4 x 3/84158 151/4 x 4110134533/8 x 16573 Stockton CA 95205831 X32191171/4 x 1/24766 165/16 x 26082541/2 x 1/24184lx 42931181/4 x 16789 175/16x382110551/2x3/4537112094640180852x22311195/16x5/164362 185/16 x 4139185561/2 x 16487862 x 33351205/16 x 1/24875 193/8x26895575/8x5/85472 E C L872x44751215/16x3/46789 203/8 x 390128583/3 x 3/47598883x 35151223/8 x 3/85264 213/8 x 4165230593/4 x 184111 ace Lite Ply893 1233/8 x 1/26381 221/2 x 283116601 x 1104139 Low Cost Door Skin 8981241/2 x 1/26992 231/2 x 3 109 155 608torBulkheads&Fuselage5ides 89C1251/2 7101 241/2 X 4 230 268 60C1I8x6x48 125 Light 1258 2481/8x12x48 225901/8x6x24115 125C 24CBalsaTapered911/8x12x24173BasSSticks Aileron StockBus Hours 800-500 PST MF92 1/8x 24 x 2434536 48 Balsa Sticks36 48We accept VISA MasterCard93 1/8x6x48173 126 3/16x 3/16 28 37 3648611/4 x 14363 Personal Checks & COD941/8x 12x 483451273/16 x 1/42430 261/16x 1/160611611/4 x 1- 5070Shipping Handling $500951/4 x 6 x 242011283/16 x 3/83138 271/16 x 1/80914621/4 x 1 /25782 O add $450961/4 x 12 x 242591293/16 x 1/23746 281/16x3/161016631/4x26390 mum Order $2500971/4 x 6x 482591303/16 x 3/44860 291/16x 1/41018645/16 x 15984 ifornia Residents98x 12x485181311/4 x 1/43442 301/16 x 3/81120655/16 x 26794 6% Sales Tax 9881321/4 x 3/83949 311/16x 1/214 24 66 3/8x 1659298C133 1/4x3/46480 134 3/8x3/84860 323/32x3/320711673/8x274105 lsa ly Birch1353/8x 1/25670 333/32x 1/80914683/8x284122 TrailingEdge99 3/32x6x122531363/8x3/47290 343/32x1/41318691/2x1/2801153648100 1/8x6x123111371/2x1/27290 353/32 x 3/81419701/2 x 290125711/8 x 1/21831101 3/16 x 6 x 122191381/2 x 3/496120 36 3/32x 1/2 17 24 70B723/16x 3/42950102 1/4x6x 12 242 138B 37 1/8x 1/8 09 13 70C731/4 x 13661103 3/32x 12x24 503 138C Contact Us Kitting Needs arrier Continued page 84 combustion chamber machined depression head head secured four socket-head screws accepts standard long-reach glow plug combustion chamber consists 3mm canted squish band surrounding 125mmdiameter hemisphere crankshaft Webra Speed 32 small compared 40 engines current class 36s derived smaller shaft part weight savings 8mm gas passage seems quite adequate crankshaft runs unshielded 10-ball bearing steel retainer rear unshielded eight-ball bearing brass retainer front thrust washer secured shallow-taper brass collet propeller shaft standard /4-28 thread thrust washer close fit case should provide adequate protection front bearing case has oil hole drilled intake front bearing ensure adequate lubrication connecting rod bronze bushed two oil holes lower end wristpin 45mm diameter crankpin 5mm wristpin secured wire clips Continued page 174 R/C Flight Simulator IBM PCS & ComDatibles Excellent flight equations Superb graphics Several styles aircraft Easily set up fly like bird features aid learning Skylark realistic R/C Helicopter flight simulator available today Call Now 313 662-LARK Airplane version coming soon WW1 AERO 1900-1919 SKYWAYS 1920-1940 restorer builder & serious modeller ot early aircraft inlormation current projects historical research news 01 museums airshows workshop notes technicel drawings data information paint/color photographs aeroplanes engines parts scale modelling material sale news current publications wants disposals 1 year subscription $25Overseas $30Sample issues $4 Published WORLD WAR 1 62e 15 Crescent Road Poughkeepsie NY 12601 USA 914 473-3679 piston relieved around base allow free gas passage bypasses small skirt covers exhaust port piston top stroke Dykes ring pinned will rotate ring gap centered boost port small bridge exhaust port controls ring exhaust port open carburetor shown photographand testedis Dynamix carb Dynamix slidevalve carb circular throat unobstructed spraybar Mixture controlled means sliding tube tapered slot acts fuel meter sliding tube constructed reduce volume fuel passage between carb throat needle valve throttle opened Thus throttle opened rapidlya condition can cause engines conventional carbs temporarily run very leanthe metering valve acts pump force little extra fuel throat assist acceleration throat diameter 65mm 256 yields choke area 33 sq mm Because large throat area operating instructions Dynamix carb recommend using pressurized fuel system throat area identical OS 4B 4D carbs used 05 40-46 engines proper tank setup should no problem Dynamix carb suction fuel system required Profile Carrier rules During testing found Dynamix carb little sensitive fuel head able enrich mixture adequately FAL fuel produce very rich mixture Idle good transition rich idle good midrange slightly leanprobably avoid flooding pressurized fuel system Dynaniix carb designed RC use no idle stop Carrier operation suction fuel system TN carl would familiar modelers little easier operate TN also lighter engine run FAI fuel break-in using muffler supplied engine muffler effective causes little power lossespecially speeds below 16000 rpm testing accomplished Fox RC long glow plug Conditions approximated sea level standard 590F WEBRA SPEED 32 SPECIFICATIONS Displacement 323 cu Bore 728 Stroke 776 Intake open ABDC 40 deg Intake close ATDC 58 deg Bypass period 120 deg Boost port period111 deg Exhaust period 152 deg Combustion chamber volume45cc Compression ratio831 Weight TN carb 87 oz Dynamix cart 92 oz Mounting dimensions Case width Bolt spacing Bolt width 32mm/i 26 lSmm/591 38mm/150 used fuels props representative competition testing Fuel 70% nitromethane 15% Klotz 5% castor oil 10% propylene oxide Props APC 9 x 7 APC 9 x 75 APC 8 x 7 simulate flight loading engine speed end break-in period Webra turned APC 8 x 7 prop 16100 rpm FAL fuel muffler Switching 70% nitro yielded 17700 rpm APC 8 x 7 174 Model Aviation STANDARD SPORTSMAN PILOTS YOU CAN AFFORD FROM $195 TO $745 RACING WITH GOGGLES STANDARD WITH GOGGLES MILITARY WITH HELMET AND VISOR SPORTSMAN WITH AMBER SUN GLASSES FROM 1/12 TO 1/4 SCALE INJECTION MOLDED IN FLESH COLOR FOR LIFE LIKE DETAIL SEND SASE FOR FREE ILLUSTRATED ORDER FORM WILLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92O6 PERFORMANCE COMPARISON 70% nitromethane WebraOS Speed 32Tune/Hill APC 9 x 75 15400 15800 APC9x71630016800 APC8x71830018000 STun Screen I3aby custom madie hangar CHECK OUT 7HE BENEFTIS OF HANGAR PROTEC11ON II om made hangars Radio Controlled Adrplanes om Fabc Selections om azing far plane Bdy safe harmful heat & sun effects Ij TOMS HANGARS & ACCESSORIES 1-800-443-7638 PO BOX 752024 TON TEXAS 77275-2024 991-0745 33% power increase Removing muffler added another 600 rpm total gain 47% comparison purposes have provided rpm figures OSITune-Hill under same operating conditions consistently achieves speeds over 90 mph Profile Carrier competition results indicate speeds around 16000 rpm Webras power output less Tune/Hill much less would expect engine 11% less displacement higher speeds Webra seems have slight advantage Especially its light weight Webra Speed 32 should highly competitive engine would hesitate recommend ers Editor Continued page 170 heavy rains Texas caused lakes reach record flood levels Lake Belton went over spillways first time history field entirely under water can see photo water receding engineers believe WIRE BENDERNEEDLE FILE SETTUBE CUTTER Bends Forms Wire /2 hapes 118 5/BCapacity Stnpe MatalPlastic Handle sech File VY DillY Angles Curves Loops EtcGreat Wood Plastic MetalMade Semi-Steel No WB100 -$400No NFS1O1 $500No TC58 $400 SQUARE PUNCH SET SINGLE EDGE Y KNIFE CiASqusiesandSlots ADES LADES Set Includes Sizes ADE IN USA o 11 1/8 16 114 5/163/8 IRST OUAUTY MADE IN USA Made Nickel Plated Stest 100 PACK PACK No SPS5 $1000 NoSEB1 02- $400 KB1 1- $650 BRUSHES DREMEL 3950 N VISE 3 PCS MINLATURE TOP OF ThE UNE MOTOSTAINLESS STEEL o iis CAR WIRE BRUSH ej ER TOOL SET 4 4 Long $300 ONE EACH BRASSINCLUDES 40 ACCESSORIES 6 6 Long- 600 NYLON STAINLESS ND CASE V10-10Long- 800 MWB3 $300 No3950- $6800 V15-15Lon -1000 DRILL SETSEPOXY BRUSHES PV614 -0 114 Capacity -$600 let Quality High Speed Steel MADE IN USA 12/PACK PLIERS Aft Sets Supplied Case No EBI 2 $ 85 DozMAKES PERFECT S WiTH SQUEEZE DS16O-1/16 tol/4l3pCs--$ 4 DS161-1/16to1/2 f 29 poe- 1650 No EB1 -$700 Gross No ZPL -$1600 08162-A TO Z 26 50 EASTERN TOOL & SUPPLY CO MOST POPULAR DS163-No 1 to6O 6opcs-$16SO149GRANDST NEWYORKCrrY NY 10013 212-925-1006 DS164-No 61 8020 pcs- 1200Catalog Free Order $300 Coupon $300 Postage Check Coupon-- Without Check Add $700 COD road leading field will reappear end May Puzzlement Bill Murray Temple Texas Several issues ago wrote regarding Microhenry page six 6 pilots 1 dog flying seven aircraft radio commented concentration single dog Currently has portrayal five 5 dogs flying six 6 models has taken little time figure out think have another dog behind flying sixth airplane taking picture others same time October1992 175 T- 7 rHF i5tn Al NWK /ADO CQ K Gi BUYERJ GLiDEis reference guide P/C hobbies Browse through guide find items need youll know just whot ask ot fovorite hobby shop RADIO CONTROL BUYERS GUIDE lets turn wish list shopping list knowing whats availoble con plan new projects improve existing projects Price informotion also helps odd up just whot plans will cost Look RADIO CONTROL BUYERS GUIDE ot local hobby shop call 3OQ 533 44 order SegO. @..eOOOOOO ....O... order send Dept X0479 RADIO CONTROL BUYERS GuIDE PO Box 1612 WaukeshaWi 53187-1612 YES Id like order _____ RADIO CONTROL BUYERS GUIDES #13002 $ ______ Ii Payment enclosed Ii Charge account Please print Name__________________________________________________ Street______________________________________________________[v33][b21312796162923880]] City State Zip Country Charge erCard J] Visa ican Express mm $15 Card#_________________________ Exp Date_____________ Signature Include postage handling US S300 canadian foreign add 18% minimum $400 Wisconsin residents add 5% sales tas Canadian orders add 7% GSI total Price availability subject change Payable US tunds Dept X0479 S
Edition: Model Aviation - 1992/10
Page Numbers: 84, 173, 174, 175
CONTROL LINE Dick Perry 6739 Stonecutter Dr Burke VA 22015 GUARDIAN display Since writing last column about AF-2S Grumman Guardian display Pima Air Museum Ive learned another Naval Aviation Museum Pensacola Naval Air Station Florida has Guardian original Navy colors dark blue markings configuration Naval Aviation Museum doubt largest collection aircraft other artifacts dedicated preserving history US naval aviation Although have yet fortunate enough visit myself photographs descriptions have seen indicate Naval Aviation Museum outstanding museum plenty room viewing aircraft display would well worth taking time visit ever vicinity Webra Speed 32 evaluation As promised last column further details Webra Speed 32 RC ABCD engine imported Hobby Dynamics 4105 Fieldstone Rd Champaign IL 61821-8801 engine Schnuerle configuration boost portthe standard configuration modern engines front-intake type two ball bearings crankshaft Webra 32 legal Profile Carrier eventthe reason Im writing about column ABCD designation refers aluminum piston running brass sleeve has chrome plated piston fitted Dykes ring complete string letters engine available two carburetor options TN carburetor standard rotary-barrel carb spraybar adjustable idle mixture type carb familiar Dynamix carburetor slide-valve type spraybar 32 built Webras 28 case 28s bore dimension 185mm 728 stroke increased 195mm 776 provide displacement 323 cu 11% below allowable displacement limit Profile Carrier 36 cu Webra has couple advantages Webra Speed 32s greatest advantage availability cant said often-preferred power plants Profile Carrierthe OS/Tune-Hill 36 K&B 58 Its second advantage its weight Because small case derived engine including carburetor weighs 75 ounces TN carb brings weight 87 ounces Dynamix 92 difference between Webra 32 either 05 JTune-Hill K&B least three ounces few exceptions construction Webra conventional backplate seal accomplished 0-ring fits inside crankcase bore Thus seal effective screws loose fact screws could missing affecting engine accommodate increased stroke channel cut wall crankcase removes about half normal thickness case clear bottom connecting rod other less conventional feature flush head us familiar cylinder heads protrude cylinder bore head Webra Speed 32 sits top cylinder liner does extend liner top piston reaches top liner Continued page 173 84 Model Aviation Abstract This months column includes formation about another Grumman Guardian display detailed description test data Webra Speed 32 ABCO engine Sig runs outstanding meet includes Carrier featured event island used Sig carrier deck adds touch class A6M Zero Jeff Johnson Wichita Kansas powered old SuperTigre G21135 Bill Bischoff photo Bill Bischoffs latest Profile Carrier MO-i uses OS 32 power Foam wing spans 44in Model weighs 32 oz Webras Speed 32 ABCD engine described detail month Dynamix carb two available options Custom Balsa Die Cutting Balsa Sheets74 5/16x 1-48 80 104 1/8x 12x24613 753/8x1-51941053/16x12x24363 3648381/8x 1/41318761/2 x 21061/4x 12x24420 1 1/16 x 228 40 39 1/8 x 3/814 19~76B79 105 107 3/32 x 12x 481004 2 1/16x 332 44 40 1/8x 1/217 2476C108 1/8x 12x481149 3 1/16 X 453 71 41 3/16 X 3/1613 19Balsa Blocks109 3/16X 12X48726 4 3/32x235 50 42 3/16x3/817 216 12 12x48838 5 3/32 x 339 53 43 3/16 x 1/222 3177 1-/ x 262 112 1108 63/32x46792441/4x1/41827782x2 74130 110C 71/8 x 23854451/4 x 3/81930flu VEI AII flC792 x 3 90149SpruceSticks 81/8x35069461/4x1/220 34 803x3 1192253648 91/8 x 477104471/4 x 3/43445813 x 4 1602991111/8 x 1/81723 103/16 x 24462481/4 x 14360 ustom Cut Balsa1121/8 x 1/42128 113/16 x 35879495/16 x 5/162432 Quality Prices 8181131/8 x 3/82333 123/16 x 491121503/8 x 3/827 42AAA Quality Ecuadorian Balsa 81C1143/16 x 3/162939 131/4 x 25172513/8 x 1/23153 Sanded Close Tolerances Balsa Planks361151/4 x 1/43652 141/4 x 37093523/8 x 3/44863 1285 N Union Street821 x21571161/4 x 3/84158 151/4 x 4110134533/8 x 16573 Stockton CA 95205831 X32191171/4 x 1/24766 165/16 x 26082541/2 x 1/24184lx 42931181/4 x 16789 175/16x382110551/2x3/4537112094640180852x22311195/16x5/164362 185/16 x 4139185561/2 x 16487862 x 33351205/16 x 1/24875 193/8x26895575/8x5/85472 E C L872x44751215/16x3/46789 203/8 x 390128583/3 x 3/47598883x 35151223/8 x 3/85264 213/8 x 4165230593/4 x 184111 ace Lite Ply893 1233/8 x 1/26381 221/2 x 283116601 x 1104139 Low Cost Door Skin 8981241/2 x 1/26992 231/2 x 3 109 155 608torBulkheads&Fuselage5ides 89C1251/2 7101 241/2 X 4 230 268 60C1I8x6x48 125 Light 1258 2481/8x12x48 225901/8x6x24115 125C 24CBalsaTapered911/8x12x24173BasSSticks Aileron StockBus Hours 800-500 PST MF92 1/8x 24 x 2434536 48 Balsa Sticks36 48We accept VISA MasterCard93 1/8x6x48173 126 3/16x 3/16 28 37 3648611/4 x 14363 Personal Checks & COD941/8x 12x 483451273/16 x 1/42430 261/16x 1/160611611/4 x 1- 5070Shipping Handling $500951/4 x 6 x 242011283/16 x 3/83138 271/16 x 1/80914621/4 x 1 /25782 O add $450961/4 x 12 x 242591293/16 x 1/23746 281/16x3/161016631/4x26390 mum Order $2500971/4 x 6x 482591303/16 x 3/44860 291/16x 1/41018645/16 x 15984 ifornia Residents98x 12x485181311/4 x 1/43442 301/16 x 3/81120655/16 x 26794 6% Sales Tax 9881321/4 x 3/83949 311/16x 1/214 24 66 3/8x 1659298C133 1/4x3/46480 134 3/8x3/84860 323/32x3/320711673/8x274105 lsa ly Birch1353/8x 1/25670 333/32x 1/80914683/8x284122 TrailingEdge99 3/32x6x122531363/8x3/47290 343/32x1/41318691/2x1/2801153648100 1/8x6x123111371/2x1/27290 353/32 x 3/81419701/2 x 290125711/8 x 1/21831101 3/16 x 6 x 122191381/2 x 3/496120 36 3/32x 1/2 17 24 70B723/16x 3/42950102 1/4x6x 12 242 138B 37 1/8x 1/8 09 13 70C731/4 x 13661103 3/32x 12x24 503 138C Contact Us Kitting Needs arrier Continued page 84 combustion chamber machined depression head head secured four socket-head screws accepts standard long-reach glow plug combustion chamber consists 3mm canted squish band surrounding 125mmdiameter hemisphere crankshaft Webra Speed 32 small compared 40 engines current class 36s derived smaller shaft part weight savings 8mm gas passage seems quite adequate crankshaft runs unshielded 10-ball bearing steel retainer rear unshielded eight-ball bearing brass retainer front thrust washer secured shallow-taper brass collet propeller shaft standard /4-28 thread thrust washer close fit case should provide adequate protection front bearing case has oil hole drilled intake front bearing ensure adequate lubrication connecting rod bronze bushed two oil holes lower end wristpin 45mm diameter crankpin 5mm wristpin secured wire clips Continued page 174 R/C Flight Simulator IBM PCS & ComDatibles Excellent flight equations Superb graphics Several styles aircraft Easily set up fly like bird features aid learning Skylark realistic R/C Helicopter flight simulator available today Call Now 313 662-LARK Airplane version coming soon WW1 AERO 1900-1919 SKYWAYS 1920-1940 restorer builder & serious modeller ot early aircraft inlormation current projects historical research news 01 museums airshows workshop notes technicel drawings data information paint/color photographs aeroplanes engines parts scale modelling material sale news current publications wants disposals 1 year subscription $25Overseas $30Sample issues $4 Published WORLD WAR 1 62e 15 Crescent Road Poughkeepsie NY 12601 USA 914 473-3679 piston relieved around base allow free gas passage bypasses small skirt covers exhaust port piston top stroke Dykes ring pinned will rotate ring gap centered boost port small bridge exhaust port controls ring exhaust port open carburetor shown photographand testedis Dynamix carb Dynamix slidevalve carb circular throat unobstructed spraybar Mixture controlled means sliding tube tapered slot acts fuel meter sliding tube constructed reduce volume fuel passage between carb throat needle valve throttle opened Thus throttle opened rapidlya condition can cause engines conventional carbs temporarily run very leanthe metering valve acts pump force little extra fuel throat assist acceleration throat diameter 65mm 256 yields choke area 33 sq mm Because large throat area operating instructions Dynamix carb recommend using pressurized fuel system throat area identical OS 4B 4D carbs used 05 40-46 engines proper tank setup should no problem Dynamix carb suction fuel system required Profile Carrier rules During testing found Dynamix carb little sensitive fuel head able enrich mixture adequately FAL fuel produce very rich mixture Idle good transition rich idle good midrange slightly leanprobably avoid flooding pressurized fuel system Dynaniix carb designed RC use no idle stop Carrier operation suction fuel system TN carl would familiar modelers little easier operate TN also lighter engine run FAI fuel break-in using muffler supplied engine muffler effective causes little power lossespecially speeds below 16000 rpm testing accomplished Fox RC long glow plug Conditions approximated sea level standard 590F WEBRA SPEED 32 SPECIFICATIONS Displacement 323 cu Bore 728 Stroke 776 Intake open ABDC 40 deg Intake close ATDC 58 deg Bypass period 120 deg Boost port period111 deg Exhaust period 152 deg Combustion chamber volume45cc Compression ratio831 Weight TN carb 87 oz Dynamix cart 92 oz Mounting dimensions Case width Bolt spacing Bolt width 32mm/i 26 lSmm/591 38mm/150 used fuels props representative competition testing Fuel 70% nitromethane 15% Klotz 5% castor oil 10% propylene oxide Props APC 9 x 7 APC 9 x 75 APC 8 x 7 simulate flight loading engine speed end break-in period Webra turned APC 8 x 7 prop 16100 rpm FAL fuel muffler Switching 70% nitro yielded 17700 rpm APC 8 x 7 174 Model Aviation STANDARD SPORTSMAN PILOTS YOU CAN AFFORD FROM $195 TO $745 RACING WITH GOGGLES STANDARD WITH GOGGLES MILITARY WITH HELMET AND VISOR SPORTSMAN WITH AMBER SUN GLASSES FROM 1/12 TO 1/4 SCALE INJECTION MOLDED IN FLESH COLOR FOR LIFE LIKE DETAIL SEND SASE FOR FREE ILLUSTRATED ORDER FORM WILLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92O6 PERFORMANCE COMPARISON 70% nitromethane WebraOS Speed 32Tune/Hill APC 9 x 75 15400 15800 APC9x71630016800 APC8x71830018000 STun Screen I3aby custom madie hangar CHECK OUT 7HE BENEFTIS OF HANGAR PROTEC11ON II om made hangars Radio Controlled Adrplanes om Fabc Selections om azing far plane Bdy safe harmful heat & sun effects Ij TOMS HANGARS & ACCESSORIES 1-800-443-7638 PO BOX 752024 TON TEXAS 77275-2024 991-0745 33% power increase Removing muffler added another 600 rpm total gain 47% comparison purposes have provided rpm figures OSITune-Hill under same operating conditions consistently achieves speeds over 90 mph Profile Carrier competition results indicate speeds around 16000 rpm Webras power output less Tune/Hill much less would expect engine 11% less displacement higher speeds Webra seems have slight advantage Especially its light weight Webra Speed 32 should highly competitive engine would hesitate recommend ers Editor Continued page 170 heavy rains Texas caused lakes reach record flood levels Lake Belton went over spillways first time history field entirely under water can see photo water receding engineers believe WIRE BENDERNEEDLE FILE SETTUBE CUTTER Bends Forms Wire /2 hapes 118 5/BCapacity Stnpe MatalPlastic Handle sech File VY DillY Angles Curves Loops EtcGreat Wood Plastic MetalMade Semi-Steel No WB100 -$400No NFS1O1 $500No TC58 $400 SQUARE PUNCH SET SINGLE EDGE Y KNIFE CiASqusiesandSlots ADES LADES Set Includes Sizes ADE IN USA o 11 1/8 16 114 5/163/8 IRST OUAUTY MADE IN USA Made Nickel Plated Stest 100 PACK PACK No SPS5 $1000 NoSEB1 02- $400 KB1 1- $650 BRUSHES DREMEL 3950 N VISE 3 PCS MINLATURE TOP OF ThE UNE MOTOSTAINLESS STEEL o iis CAR WIRE BRUSH ej ER TOOL SET 4 4 Long $300 ONE EACH BRASSINCLUDES 40 ACCESSORIES 6 6 Long- 600 NYLON STAINLESS ND CASE V10-10Long- 800 MWB3 $300 No3950- $6800 V15-15Lon -1000 DRILL SETSEPOXY BRUSHES PV614 -0 114 Capacity -$600 let Quality High Speed Steel MADE IN USA 12/PACK PLIERS Aft Sets Supplied Case No EBI 2 $ 85 DozMAKES PERFECT S WiTH SQUEEZE DS16O-1/16 tol/4l3pCs--$ 4 DS161-1/16to1/2 f 29 poe- 1650 No EB1 -$700 Gross No ZPL -$1600 08162-A TO Z 26 50 EASTERN TOOL & SUPPLY CO MOST POPULAR DS163-No 1 to6O 6opcs-$16SO149GRANDST NEWYORKCrrY NY 10013 212-925-1006 DS164-No 61 8020 pcs- 1200Catalog Free Order $300 Coupon $300 Postage Check Coupon-- Without Check Add $700 COD road leading field will reappear end May Puzzlement Bill Murray Temple Texas Several issues ago wrote regarding Microhenry page six 6 pilots 1 dog flying seven aircraft radio commented concentration single dog Currently has portrayal five 5 dogs flying six 6 models has taken little time figure out think have another dog behind flying sixth airplane taking picture others same time October1992 175 T- 7 rHF i5tn Al NWK /ADO CQ K Gi BUYERJ GLiDEis reference guide P/C hobbies Browse through guide find items need youll know just whot ask ot fovorite hobby shop RADIO CONTROL BUYERS GUIDE lets turn wish list shopping list knowing whats availoble con plan new projects improve existing projects Price informotion also helps odd up just whot plans will cost Look RADIO CONTROL BUYERS GUIDE ot local hobby shop call 3OQ 533 44 order SegO. @..eOOOOOO ....O... order send Dept X0479 RADIO CONTROL BUYERS GuIDE PO Box 1612 WaukeshaWi 53187-1612 YES Id like order _____ RADIO CONTROL BUYERS GUIDES #13002 $ ______ Ii Payment enclosed Ii Charge account Please print Name__________________________________________________ Street______________________________________________________[v33][b21312796162923880]] City State Zip Country Charge erCard J] Visa ican Express mm $15 Card#_________________________ Exp Date_____________ Signature Include postage handling US S300 canadian foreign add 18% minimum $400 Wisconsin residents add 5% sales tas Canadian orders add 7% GSI total Price availability subject change Payable US tunds Dept X0479 S
Edition: Model Aviation - 1992/10
Page Numbers: 84, 173, 174, 175
CONTROL LINE Dick Perry 6739 Stonecutter Dr Burke VA 22015 GUARDIAN display Since writing last column about AF-2S Grumman Guardian display Pima Air Museum Ive learned another Naval Aviation Museum Pensacola Naval Air Station Florida has Guardian original Navy colors dark blue markings configuration Naval Aviation Museum doubt largest collection aircraft other artifacts dedicated preserving history US naval aviation Although have yet fortunate enough visit myself photographs descriptions have seen indicate Naval Aviation Museum outstanding museum plenty room viewing aircraft display would well worth taking time visit ever vicinity Webra Speed 32 evaluation As promised last column further details Webra Speed 32 RC ABCD engine imported Hobby Dynamics 4105 Fieldstone Rd Champaign IL 61821-8801 engine Schnuerle configuration boost portthe standard configuration modern engines front-intake type two ball bearings crankshaft Webra 32 legal Profile Carrier eventthe reason Im writing about column ABCD designation refers aluminum piston running brass sleeve has chrome plated piston fitted Dykes ring complete string letters engine available two carburetor options TN carburetor standard rotary-barrel carb spraybar adjustable idle mixture type carb familiar Dynamix carburetor slide-valve type spraybar 32 built Webras 28 case 28s bore dimension 185mm 728 stroke increased 195mm 776 provide displacement 323 cu 11% below allowable displacement limit Profile Carrier 36 cu Webra has couple advantages Webra Speed 32s greatest advantage availability cant said often-preferred power plants Profile Carrierthe OS/Tune-Hill 36 K&B 58 Its second advantage its weight Because small case derived engine including carburetor weighs 75 ounces TN carb brings weight 87 ounces Dynamix 92 difference between Webra 32 either 05 JTune-Hill K&B least three ounces few exceptions construction Webra conventional backplate seal accomplished 0-ring fits inside crankcase bore Thus seal effective screws loose fact screws could missing affecting engine accommodate increased stroke channel cut wall crankcase removes about half normal thickness case clear bottom connecting rod other less conventional feature flush head us familiar cylinder heads protrude cylinder bore head Webra Speed 32 sits top cylinder liner does extend liner top piston reaches top liner Continued page 173 84 Model Aviation Abstract This months column includes formation about another Grumman Guardian display detailed description test data Webra Speed 32 ABCO engine Sig runs outstanding meet includes Carrier featured event island used Sig carrier deck adds touch class A6M Zero Jeff Johnson Wichita Kansas powered old SuperTigre G21135 Bill Bischoff photo Bill Bischoffs latest Profile Carrier MO-i uses OS 32 power Foam wing spans 44in Model weighs 32 oz Webras Speed 32 ABCD engine described detail month Dynamix carb two available options Custom Balsa Die Cutting Balsa Sheets74 5/16x 1-48 80 104 1/8x 12x24613 753/8x1-51941053/16x12x24363 3648381/8x 1/41318761/2 x 21061/4x 12x24420 1 1/16 x 228 40 39 1/8 x 3/814 19~76B79 105 107 3/32 x 12x 481004 2 1/16x 332 44 40 1/8x 1/217 2476C108 1/8x 12x481149 3 1/16 X 453 71 41 3/16 X 3/1613 19Balsa Blocks109 3/16X 12X48726 4 3/32x235 50 42 3/16x3/817 216 12 12x48838 5 3/32 x 339 53 43 3/16 x 1/222 3177 1-/ x 262 112 1108 63/32x46792441/4x1/41827782x2 74130 110C 71/8 x 23854451/4 x 3/81930flu VEI AII flC792 x 3 90149SpruceSticks 81/8x35069461/4x1/220 34 803x3 1192253648 91/8 x 477104471/4 x 3/43445813 x 4 1602991111/8 x 1/81723 103/16 x 24462481/4 x 14360 ustom Cut Balsa1121/8 x 1/42128 113/16 x 35879495/16 x 5/162432 Quality Prices 8181131/8 x 3/82333 123/16 x 491121503/8 x 3/827 42AAA Quality Ecuadorian Balsa 81C1143/16 x 3/162939 131/4 x 25172513/8 x 1/23153 Sanded Close Tolerances Balsa Planks361151/4 x 1/43652 141/4 x 37093523/8 x 3/44863 1285 N Union Street821 x21571161/4 x 3/84158 151/4 x 4110134533/8 x 16573 Stockton CA 95205831 X32191171/4 x 1/24766 165/16 x 26082541/2 x 1/24184lx 42931181/4 x 16789 175/16x382110551/2x3/4537112094640180852x22311195/16x5/164362 185/16 x 4139185561/2 x 16487862 x 33351205/16 x 1/24875 193/8x26895575/8x5/85472 E C L872x44751215/16x3/46789 203/8 x 390128583/3 x 3/47598883x 35151223/8 x 3/85264 213/8 x 4165230593/4 x 184111 ace Lite Ply893 1233/8 x 1/26381 221/2 x 283116601 x 1104139 Low Cost Door Skin 8981241/2 x 1/26992 231/2 x 3 109 155 608torBulkheads&Fuselage5ides 89C1251/2 7101 241/2 X 4 230 268 60C1I8x6x48 125 Light 1258 2481/8x12x48 225901/8x6x24115 125C 24CBalsaTapered911/8x12x24173BasSSticks Aileron StockBus Hours 800-500 PST MF92 1/8x 24 x 2434536 48 Balsa Sticks36 48We accept VISA MasterCard93 1/8x6x48173 126 3/16x 3/16 28 37 3648611/4 x 14363 Personal Checks & COD941/8x 12x 483451273/16 x 1/42430 261/16x 1/160611611/4 x 1- 5070Shipping Handling $500951/4 x 6 x 242011283/16 x 3/83138 271/16 x 1/80914621/4 x 1 /25782 O add $450961/4 x 12 x 242591293/16 x 1/23746 281/16x3/161016631/4x26390 mum Order $2500971/4 x 6x 482591303/16 x 3/44860 291/16x 1/41018645/16 x 15984 ifornia Residents98x 12x485181311/4 x 1/43442 301/16 x 3/81120655/16 x 26794 6% Sales Tax 9881321/4 x 3/83949 311/16x 1/214 24 66 3/8x 1659298C133 1/4x3/46480 134 3/8x3/84860 323/32x3/320711673/8x274105 lsa ly Birch1353/8x 1/25670 333/32x 1/80914683/8x284122 TrailingEdge99 3/32x6x122531363/8x3/47290 343/32x1/41318691/2x1/2801153648100 1/8x6x123111371/2x1/27290 353/32 x 3/81419701/2 x 290125711/8 x 1/21831101 3/16 x 6 x 122191381/2 x 3/496120 36 3/32x 1/2 17 24 70B723/16x 3/42950102 1/4x6x 12 242 138B 37 1/8x 1/8 09 13 70C731/4 x 13661103 3/32x 12x24 503 138C Contact Us Kitting Needs arrier Continued page 84 combustion chamber machined depression head head secured four socket-head screws accepts standard long-reach glow plug combustion chamber consists 3mm canted squish band surrounding 125mmdiameter hemisphere crankshaft Webra Speed 32 small compared 40 engines current class 36s derived smaller shaft part weight savings 8mm gas passage seems quite adequate crankshaft runs unshielded 10-ball bearing steel retainer rear unshielded eight-ball bearing brass retainer front thrust washer secured shallow-taper brass collet propeller shaft standard /4-28 thread thrust washer close fit case should provide adequate protection front bearing case has oil hole drilled intake front bearing ensure adequate lubrication connecting rod bronze bushed two oil holes lower end wristpin 45mm diameter crankpin 5mm wristpin secured wire clips Continued page 174 R/C Flight Simulator IBM PCS & ComDatibles Excellent flight equations Superb graphics Several styles aircraft Easily set up fly like bird features aid learning Skylark realistic R/C Helicopter flight simulator available today Call Now 313 662-LARK Airplane version coming soon WW1 AERO 1900-1919 SKYWAYS 1920-1940 restorer builder & serious modeller ot early aircraft inlormation current projects historical research news 01 museums airshows workshop notes technicel drawings data information paint/color photographs aeroplanes engines parts scale modelling material sale news current publications wants disposals 1 year subscription $25Overseas $30Sample issues $4 Published WORLD WAR 1 62e 15 Crescent Road Poughkeepsie NY 12601 USA 914 473-3679 piston relieved around base allow free gas passage bypasses small skirt covers exhaust port piston top stroke Dykes ring pinned will rotate ring gap centered boost port small bridge exhaust port controls ring exhaust port open carburetor shown photographand testedis Dynamix carb Dynamix slidevalve carb circular throat unobstructed spraybar Mixture controlled means sliding tube tapered slot acts fuel meter sliding tube constructed reduce volume fuel passage between carb throat needle valve throttle opened Thus throttle opened rapidlya condition can cause engines conventional carbs temporarily run very leanthe metering valve acts pump force little extra fuel throat assist acceleration throat diameter 65mm 256 yields choke area 33 sq mm Because large throat area operating instructions Dynamix carb recommend using pressurized fuel system throat area identical OS 4B 4D carbs used 05 40-46 engines proper tank setup should no problem Dynamix carb suction fuel system required Profile Carrier rules During testing found Dynamix carb little sensitive fuel head able enrich mixture adequately FAL fuel produce very rich mixture Idle good transition rich idle good midrange slightly leanprobably avoid flooding pressurized fuel system Dynaniix carb designed RC use no idle stop Carrier operation suction fuel system TN carl would familiar modelers little easier operate TN also lighter engine run FAI fuel break-in using muffler supplied engine muffler effective causes little power lossespecially speeds below 16000 rpm testing accomplished Fox RC long glow plug Conditions approximated sea level standard 590F WEBRA SPEED 32 SPECIFICATIONS Displacement 323 cu Bore 728 Stroke 776 Intake open ABDC 40 deg Intake close ATDC 58 deg Bypass period 120 deg Boost port period111 deg Exhaust period 152 deg Combustion chamber volume45cc Compression ratio831 Weight TN carb 87 oz Dynamix cart 92 oz Mounting dimensions Case width Bolt spacing Bolt width 32mm/i 26 lSmm/591 38mm/150 used fuels props representative competition testing Fuel 70% nitromethane 15% Klotz 5% castor oil 10% propylene oxide Props APC 9 x 7 APC 9 x 75 APC 8 x 7 simulate flight loading engine speed end break-in period Webra turned APC 8 x 7 prop 16100 rpm FAL fuel muffler Switching 70% nitro yielded 17700 rpm APC 8 x 7 174 Model Aviation STANDARD SPORTSMAN PILOTS YOU CAN AFFORD FROM $195 TO $745 RACING WITH GOGGLES STANDARD WITH GOGGLES MILITARY WITH HELMET AND VISOR SPORTSMAN WITH AMBER SUN GLASSES FROM 1/12 TO 1/4 SCALE INJECTION MOLDED IN FLESH COLOR FOR LIFE LIKE DETAIL SEND SASE FOR FREE ILLUSTRATED ORDER FORM WILLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92O6 PERFORMANCE COMPARISON 70% nitromethane WebraOS Speed 32Tune/Hill APC 9 x 75 15400 15800 APC9x71630016800 APC8x71830018000 STun Screen I3aby custom madie hangar CHECK OUT 7HE BENEFTIS OF HANGAR PROTEC11ON II om made hangars Radio Controlled Adrplanes om Fabc Selections om azing far plane Bdy safe harmful heat & sun effects Ij TOMS HANGARS & ACCESSORIES 1-800-443-7638 PO BOX 752024 TON TEXAS 77275-2024 991-0745 33% power increase Removing muffler added another 600 rpm total gain 47% comparison purposes have provided rpm figures OSITune-Hill under same operating conditions consistently achieves speeds over 90 mph Profile Carrier competition results indicate speeds around 16000 rpm Webras power output less Tune/Hill much less would expect engine 11% less displacement higher speeds Webra seems have slight advantage Especially its light weight Webra Speed 32 should highly competitive engine would hesitate recommend ers Editor Continued page 170 heavy rains Texas caused lakes reach record flood levels Lake Belton went over spillways first time history field entirely under water can see photo water receding engineers believe WIRE BENDERNEEDLE FILE SETTUBE CUTTER Bends Forms Wire /2 hapes 118 5/BCapacity Stnpe MatalPlastic Handle sech File VY DillY Angles Curves Loops EtcGreat Wood Plastic MetalMade Semi-Steel No WB100 -$400No NFS1O1 $500No TC58 $400 SQUARE PUNCH SET SINGLE EDGE Y KNIFE CiASqusiesandSlots ADES LADES Set Includes Sizes ADE IN USA o 11 1/8 16 114 5/163/8 IRST OUAUTY MADE IN USA Made Nickel Plated Stest 100 PACK PACK No SPS5 $1000 NoSEB1 02- $400 KB1 1- $650 BRUSHES DREMEL 3950 N VISE 3 PCS MINLATURE TOP OF ThE UNE MOTOSTAINLESS STEEL o iis CAR WIRE BRUSH ej ER TOOL SET 4 4 Long $300 ONE EACH BRASSINCLUDES 40 ACCESSORIES 6 6 Long- 600 NYLON STAINLESS ND CASE V10-10Long- 800 MWB3 $300 No3950- $6800 V15-15Lon -1000 DRILL SETSEPOXY BRUSHES PV614 -0 114 Capacity -$600 let Quality High Speed Steel MADE IN USA 12/PACK PLIERS Aft Sets Supplied Case No EBI 2 $ 85 DozMAKES PERFECT S WiTH SQUEEZE DS16O-1/16 tol/4l3pCs--$ 4 DS161-1/16to1/2 f 29 poe- 1650 No EB1 -$700 Gross No ZPL -$1600 08162-A TO Z 26 50 EASTERN TOOL & SUPPLY CO MOST POPULAR DS163-No 1 to6O 6opcs-$16SO149GRANDST NEWYORKCrrY NY 10013 212-925-1006 DS164-No 61 8020 pcs- 1200Catalog Free Order $300 Coupon $300 Postage Check Coupon-- Without Check Add $700 COD road leading field will reappear end May Puzzlement Bill Murray Temple Texas Several issues ago wrote regarding Microhenry page six 6 pilots 1 dog flying seven aircraft radio commented concentration single dog Currently has portrayal five 5 dogs flying six 6 models has taken little time figure out think have another dog behind flying sixth airplane taking picture others same time October1992 175 T- 7 rHF i5tn Al NWK /ADO CQ K Gi BUYERJ GLiDEis reference guide P/C hobbies Browse through guide find items need youll know just whot ask ot fovorite hobby shop RADIO CONTROL BUYERS GUIDE lets turn wish list shopping list knowing whats availoble con plan new projects improve existing projects Price informotion also helps odd up just whot plans will cost Look RADIO CONTROL BUYERS GUIDE ot local hobby shop call 3OQ 533 44 order SegO. @..eOOOOOO ....O... order send Dept X0479 RADIO CONTROL BUYERS GuIDE PO Box 1612 WaukeshaWi 53187-1612 YES Id like order _____ RADIO CONTROL BUYERS GUIDES #13002 $ ______ Ii Payment enclosed Ii Charge account Please print Name__________________________________________________ Street______________________________________________________[v33][b21312796162923880]] City State Zip Country Charge erCard J] Visa ican Express mm $15 Card#_________________________ Exp Date_____________ Signature Include postage handling US S300 canadian foreign add 18% minimum $400 Wisconsin residents add 5% sales tas Canadian orders add 7% GSI total Price availability subject change Payable US tunds Dept X0479 S
Edition: Model Aviation - 1992/10
Page Numbers: 84, 173, 174, 175
CONTROL LINE Dick Perry 6739 Stonecutter Dr Burke VA 22015 GUARDIAN display Since writing last column about AF-2S Grumman Guardian display Pima Air Museum Ive learned another Naval Aviation Museum Pensacola Naval Air Station Florida has Guardian original Navy colors dark blue markings configuration Naval Aviation Museum doubt largest collection aircraft other artifacts dedicated preserving history US naval aviation Although have yet fortunate enough visit myself photographs descriptions have seen indicate Naval Aviation Museum outstanding museum plenty room viewing aircraft display would well worth taking time visit ever vicinity Webra Speed 32 evaluation As promised last column further details Webra Speed 32 RC ABCD engine imported Hobby Dynamics 4105 Fieldstone Rd Champaign IL 61821-8801 engine Schnuerle configuration boost portthe standard configuration modern engines front-intake type two ball bearings crankshaft Webra 32 legal Profile Carrier eventthe reason Im writing about column ABCD designation refers aluminum piston running brass sleeve has chrome plated piston fitted Dykes ring complete string letters engine available two carburetor options TN carburetor standard rotary-barrel carb spraybar adjustable idle mixture type carb familiar Dynamix carburetor slide-valve type spraybar 32 built Webras 28 case 28s bore dimension 185mm 728 stroke increased 195mm 776 provide displacement 323 cu 11% below allowable displacement limit Profile Carrier 36 cu Webra has couple advantages Webra Speed 32s greatest advantage availability cant said often-preferred power plants Profile Carrierthe OS/Tune-Hill 36 K&B 58 Its second advantage its weight Because small case derived engine including carburetor weighs 75 ounces TN carb brings weight 87 ounces Dynamix 92 difference between Webra 32 either 05 JTune-Hill K&B least three ounces few exceptions construction Webra conventional backplate seal accomplished 0-ring fits inside crankcase bore Thus seal effective screws loose fact screws could missing affecting engine accommodate increased stroke channel cut wall crankcase removes about half normal thickness case clear bottom connecting rod other less conventional feature flush head us familiar cylinder heads protrude cylinder bore head Webra Speed 32 sits top cylinder liner does extend liner top piston reaches top liner Continued page 173 84 Model Aviation Abstract This months column includes formation about another Grumman Guardian display detailed description test data Webra Speed 32 ABCO engine Sig runs outstanding meet includes Carrier featured event island used Sig carrier deck adds touch class A6M Zero Jeff Johnson Wichita Kansas powered old SuperTigre G21135 Bill Bischoff photo Bill Bischoffs latest Profile Carrier MO-i uses OS 32 power Foam wing spans 44in Model weighs 32 oz Webras Speed 32 ABCD engine described detail month Dynamix carb two available options Custom Balsa Die Cutting Balsa Sheets74 5/16x 1-48 80 104 1/8x 12x24613 753/8x1-51941053/16x12x24363 3648381/8x 1/41318761/2 x 21061/4x 12x24420 1 1/16 x 228 40 39 1/8 x 3/814 19~76B79 105 107 3/32 x 12x 481004 2 1/16x 332 44 40 1/8x 1/217 2476C108 1/8x 12x481149 3 1/16 X 453 71 41 3/16 X 3/1613 19Balsa Blocks109 3/16X 12X48726 4 3/32x235 50 42 3/16x3/817 216 12 12x48838 5 3/32 x 339 53 43 3/16 x 1/222 3177 1-/ x 262 112 1108 63/32x46792441/4x1/41827782x2 74130 110C 71/8 x 23854451/4 x 3/81930flu VEI AII flC792 x 3 90149SpruceSticks 81/8x35069461/4x1/220 34 803x3 1192253648 91/8 x 477104471/4 x 3/43445813 x 4 1602991111/8 x 1/81723 103/16 x 24462481/4 x 14360 ustom Cut Balsa1121/8 x 1/42128 113/16 x 35879495/16 x 5/162432 Quality Prices 8181131/8 x 3/82333 123/16 x 491121503/8 x 3/827 42AAA Quality Ecuadorian Balsa 81C1143/16 x 3/162939 131/4 x 25172513/8 x 1/23153 Sanded Close Tolerances Balsa Planks361151/4 x 1/43652 141/4 x 37093523/8 x 3/44863 1285 N Union Street821 x21571161/4 x 3/84158 151/4 x 4110134533/8 x 16573 Stockton CA 95205831 X32191171/4 x 1/24766 165/16 x 26082541/2 x 1/24184lx 42931181/4 x 16789 175/16x382110551/2x3/4537112094640180852x22311195/16x5/164362 185/16 x 4139185561/2 x 16487862 x 33351205/16 x 1/24875 193/8x26895575/8x5/85472 E C L872x44751215/16x3/46789 203/8 x 390128583/3 x 3/47598883x 35151223/8 x 3/85264 213/8 x 4165230593/4 x 184111 ace Lite Ply893 1233/8 x 1/26381 221/2 x 283116601 x 1104139 Low Cost Door Skin 8981241/2 x 1/26992 231/2 x 3 109 155 608torBulkheads&Fuselage5ides 89C1251/2 7101 241/2 X 4 230 268 60C1I8x6x48 125 Light 1258 2481/8x12x48 225901/8x6x24115 125C 24CBalsaTapered911/8x12x24173BasSSticks Aileron StockBus Hours 800-500 PST MF92 1/8x 24 x 2434536 48 Balsa Sticks36 48We accept VISA MasterCard93 1/8x6x48173 126 3/16x 3/16 28 37 3648611/4 x 14363 Personal Checks & COD941/8x 12x 483451273/16 x 1/42430 261/16x 1/160611611/4 x 1- 5070Shipping Handling $500951/4 x 6 x 242011283/16 x 3/83138 271/16 x 1/80914621/4 x 1 /25782 O add $450961/4 x 12 x 242591293/16 x 1/23746 281/16x3/161016631/4x26390 mum Order $2500971/4 x 6x 482591303/16 x 3/44860 291/16x 1/41018645/16 x 15984 ifornia Residents98x 12x485181311/4 x 1/43442 301/16 x 3/81120655/16 x 26794 6% Sales Tax 9881321/4 x 3/83949 311/16x 1/214 24 66 3/8x 1659298C133 1/4x3/46480 134 3/8x3/84860 323/32x3/320711673/8x274105 lsa ly Birch1353/8x 1/25670 333/32x 1/80914683/8x284122 TrailingEdge99 3/32x6x122531363/8x3/47290 343/32x1/41318691/2x1/2801153648100 1/8x6x123111371/2x1/27290 353/32 x 3/81419701/2 x 290125711/8 x 1/21831101 3/16 x 6 x 122191381/2 x 3/496120 36 3/32x 1/2 17 24 70B723/16x 3/42950102 1/4x6x 12 242 138B 37 1/8x 1/8 09 13 70C731/4 x 13661103 3/32x 12x24 503 138C Contact Us Kitting Needs arrier Continued page 84 combustion chamber machined depression head head secured four socket-head screws accepts standard long-reach glow plug combustion chamber consists 3mm canted squish band surrounding 125mmdiameter hemisphere crankshaft Webra Speed 32 small compared 40 engines current class 36s derived smaller shaft part weight savings 8mm gas passage seems quite adequate crankshaft runs unshielded 10-ball bearing steel retainer rear unshielded eight-ball bearing brass retainer front thrust washer secured shallow-taper brass collet propeller shaft standard /4-28 thread thrust washer close fit case should provide adequate protection front bearing case has oil hole drilled intake front bearing ensure adequate lubrication connecting rod bronze bushed two oil holes lower end wristpin 45mm diameter crankpin 5mm wristpin secured wire clips Continued page 174 R/C Flight Simulator IBM PCS & ComDatibles Excellent flight equations Superb graphics Several styles aircraft Easily set up fly like bird features aid learning Skylark realistic R/C Helicopter flight simulator available today Call Now 313 662-LARK Airplane version coming soon WW1 AERO 1900-1919 SKYWAYS 1920-1940 restorer builder & serious modeller ot early aircraft inlormation current projects historical research news 01 museums airshows workshop notes technicel drawings data information paint/color photographs aeroplanes engines parts scale modelling material sale news current publications wants disposals 1 year subscription $25Overseas $30Sample issues $4 Published WORLD WAR 1 62e 15 Crescent Road Poughkeepsie NY 12601 USA 914 473-3679 piston relieved around base allow free gas passage bypasses small skirt covers exhaust port piston top stroke Dykes ring pinned will rotate ring gap centered boost port small bridge exhaust port controls ring exhaust port open carburetor shown photographand testedis Dynamix carb Dynamix slidevalve carb circular throat unobstructed spraybar Mixture controlled means sliding tube tapered slot acts fuel meter sliding tube constructed reduce volume fuel passage between carb throat needle valve throttle opened Thus throttle opened rapidlya condition can cause engines conventional carbs temporarily run very leanthe metering valve acts pump force little extra fuel throat assist acceleration throat diameter 65mm 256 yields choke area 33 sq mm Because large throat area operating instructions Dynamix carb recommend using pressurized fuel system throat area identical OS 4B 4D carbs used 05 40-46 engines proper tank setup should no problem Dynamix carb suction fuel system required Profile Carrier rules During testing found Dynamix carb little sensitive fuel head able enrich mixture adequately FAL fuel produce very rich mixture Idle good transition rich idle good midrange slightly leanprobably avoid flooding pressurized fuel system Dynaniix carb designed RC use no idle stop Carrier operation suction fuel system TN carl would familiar modelers little easier operate TN also lighter engine run FAI fuel break-in using muffler supplied engine muffler effective causes little power lossespecially speeds below 16000 rpm testing accomplished Fox RC long glow plug Conditions approximated sea level standard 590F WEBRA SPEED 32 SPECIFICATIONS Displacement 323 cu Bore 728 Stroke 776 Intake open ABDC 40 deg Intake close ATDC 58 deg Bypass period 120 deg Boost port period111 deg Exhaust period 152 deg Combustion chamber volume45cc Compression ratio831 Weight TN carb 87 oz Dynamix cart 92 oz Mounting dimensions Case width Bolt spacing Bolt width 32mm/i 26 lSmm/591 38mm/150 used fuels props representative competition testing Fuel 70% nitromethane 15% Klotz 5% castor oil 10% propylene oxide Props APC 9 x 7 APC 9 x 75 APC 8 x 7 simulate flight loading engine speed end break-in period Webra turned APC 8 x 7 prop 16100 rpm FAL fuel muffler Switching 70% nitro yielded 17700 rpm APC 8 x 7 174 Model Aviation STANDARD SPORTSMAN PILOTS YOU CAN AFFORD FROM $195 TO $745 RACING WITH GOGGLES STANDARD WITH GOGGLES MILITARY WITH HELMET AND VISOR SPORTSMAN WITH AMBER SUN GLASSES FROM 1/12 TO 1/4 SCALE INJECTION MOLDED IN FLESH COLOR FOR LIFE LIKE DETAIL SEND SASE FOR FREE ILLUSTRATED ORDER FORM WILLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92O6 PERFORMANCE COMPARISON 70% nitromethane WebraOS Speed 32Tune/Hill APC 9 x 75 15400 15800 APC9x71630016800 APC8x71830018000 STun Screen I3aby custom madie hangar CHECK OUT 7HE BENEFTIS OF HANGAR PROTEC11ON II om made hangars Radio Controlled Adrplanes om Fabc Selections om azing far plane Bdy safe harmful heat & sun effects Ij TOMS HANGARS & ACCESSORIES 1-800-443-7638 PO BOX 752024 TON TEXAS 77275-2024 991-0745 33% power increase Removing muffler added another 600 rpm total gain 47% comparison purposes have provided rpm figures OSITune-Hill under same operating conditions consistently achieves speeds over 90 mph Profile Carrier competition results indicate speeds around 16000 rpm Webras power output less Tune/Hill much less would expect engine 11% less displacement higher speeds Webra seems have slight advantage Especially its light weight Webra Speed 32 should highly competitive engine would hesitate recommend ers Editor Continued page 170 heavy rains Texas caused lakes reach record flood levels Lake Belton went over spillways first time history field entirely under water can see photo water receding engineers believe WIRE BENDERNEEDLE FILE SETTUBE CUTTER Bends Forms Wire /2 hapes 118 5/BCapacity Stnpe MatalPlastic Handle sech File VY DillY Angles Curves Loops EtcGreat Wood Plastic MetalMade Semi-Steel No WB100 -$400No NFS1O1 $500No TC58 $400 SQUARE PUNCH SET SINGLE EDGE Y KNIFE CiASqusiesandSlots ADES LADES Set Includes Sizes ADE IN USA o 11 1/8 16 114 5/163/8 IRST OUAUTY MADE IN USA Made Nickel Plated Stest 100 PACK PACK No SPS5 $1000 NoSEB1 02- $400 KB1 1- $650 BRUSHES DREMEL 3950 N VISE 3 PCS MINLATURE TOP OF ThE UNE MOTOSTAINLESS STEEL o iis CAR WIRE BRUSH ej ER TOOL SET 4 4 Long $300 ONE EACH BRASSINCLUDES 40 ACCESSORIES 6 6 Long- 600 NYLON STAINLESS ND CASE V10-10Long- 800 MWB3 $300 No3950- $6800 V15-15Lon -1000 DRILL SETSEPOXY BRUSHES PV614 -0 114 Capacity -$600 let Quality High Speed Steel MADE IN USA 12/PACK PLIERS Aft Sets Supplied Case No EBI 2 $ 85 DozMAKES PERFECT S WiTH SQUEEZE DS16O-1/16 tol/4l3pCs--$ 4 DS161-1/16to1/2 f 29 poe- 1650 No EB1 -$700 Gross No ZPL -$1600 08162-A TO Z 26 50 EASTERN TOOL & SUPPLY CO MOST POPULAR DS163-No 1 to6O 6opcs-$16SO149GRANDST NEWYORKCrrY NY 10013 212-925-1006 DS164-No 61 8020 pcs- 1200Catalog Free Order $300 Coupon $300 Postage Check Coupon-- Without Check Add $700 COD road leading field will reappear end May Puzzlement Bill Murray Temple Texas Several issues ago wrote regarding Microhenry page six 6 pilots 1 dog flying seven aircraft radio commented concentration single dog Currently has portrayal five 5 dogs flying six 6 models has taken little time figure out think have another dog behind flying sixth airplane taking picture others same time October1992 175 T- 7 rHF i5tn Al NWK /ADO CQ K Gi BUYERJ GLiDEis reference guide P/C hobbies Browse through guide find items need youll know just whot ask ot fovorite hobby shop RADIO CONTROL BUYERS GUIDE lets turn wish list shopping list knowing whats availoble con plan new projects improve existing projects Price informotion also helps odd up just whot plans will cost Look RADIO CONTROL BUYERS GUIDE ot local hobby shop call 3OQ 533 44 order SegO. @..eOOOOOO ....O... order send Dept X0479 RADIO CONTROL BUYERS GuIDE PO Box 1612 WaukeshaWi 53187-1612 YES Id like order _____ RADIO CONTROL BUYERS GUIDES #13002 $ ______ Ii Payment enclosed Ii Charge account Please print Name__________________________________________________ Street______________________________________________________[v33][b21312796162923880]] City State Zip Country Charge erCard J] Visa ican Express mm $15 Card#_________________________ Exp Date_____________ Signature Include postage handling US S300 canadian foreign add 18% minimum $400 Wisconsin residents add 5% sales tas Canadian orders add 7% GSI total Price availability subject change Payable US tunds Dept X0479 S