For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185
Edition: Model Aviation - 1990/08
Page Numbers: 73, 74, 76, 183, 184, 185
For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185
Edition: Model Aviation - 1990/08
Page Numbers: 73, 74, 76, 183, 184, 185
For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185
Edition: Model Aviation - 1990/08
Page Numbers: 73, 74, 76, 183, 184, 185
For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185
Edition: Model Aviation - 1990/08
Page Numbers: 73, 74, 76, 183, 184, 185
For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185
Edition: Model Aviation - 1990/08
Page Numbers: 73, 74, 76, 183, 184, 185
For dawn-of-aviation enthusiast CL duplicate Henry Farmans pioneering Boxkite should get nostalgia juices run ning model has 42-in wingspan set up 25 power U Dave Haught THE PROBLEM indulging oneself tell you can never get enouRh Once start its difficult stop certainly held true Con trol Line model Levavasseurs Antoi nette design pioneering days aviation CL Antoinette July 1989 Model Aviation After building gaining Top picture Buckets drag say really cut down drag Boxkite model eliminates much wire rigging between wings interpiane struts fuii-size prototype model captures look feel original Boxkite yet remains practi cal flying machine Above Perched like spider Its web engine really inac cessIble appears scale rigging between booms has omitted easier ac cess engine wedge-style fuel tank looks quite authentic works great too experience flying historic airplane felt need something sight sun shining through clear doped covering late after noon flying sessions hard forget takes back time aviation simply miracle flight itself earlier era flying wasnt about speed stunts start finish flight achievement moment accomplishment Im afraid Antoinette has opened vein nostalgia thirst must quenched often found myself having fly mod el time After wasnt enough Reading First Air Race nudged imagination further still going pursue vintage flight fly two planes instead just Maybe two could flown once same circleeven race Bristol Boxkite competitor air race back second decade century An overnight rental movie Magnificent Men Flying Machines swept doubt aside knew wanted model Boxkite beginning idea seemed hopeAugust 1990 73 Left This what pit crew chief gets see Boxkite room get out safely giow plug leads have attached front modei pusher prop commonly available 8 x 4 cut down achieve -in clearance side frames Dont forget balance Right twin stabilizers securely fastened booms plywood T-gusaets wrapped thread twin rudders set right turn very effective because direct propwash shock-absorbing tall skid duplicates original Left The underside showing hefty belicrank mounted out way bottom wing wire struts forming landing gear sewn leading trailing edge spars landing skids axle wrapped rubberbands skids just original Right Unlike original Boxklte used front canard elevator control model uses front canard simplifies control wire hookup Control response immediate though careful canard pivots aluminum tube spar Left The engine mounting plate may seem excessive little else distribute power airframe Weight case less important strength Note hole near back mount fuel tank overflow hose Drill engine mounting holes stall blind nuts before assembly will no room later Right booms under construction Make certain dowels straight-grainedsuch fragile structure wont forgive weak links Shape mating ends round files closest fit possible less Boxkite seemed fragile certain model structure would difficult designand ever flew wouldnt survive first landing Ques tions nagged haunting sleep recalled reading article modeling Curtiss Pusher Control Line some point youth seemed work back now decided try library shelf sits old well-worn volumePioneer Aircraft 1903-1 914 Kenneth Munson Small compact Mun sons book prize childhood trip taken years ago Ive often wondered times Ive read studied page vintage aircraft project Free Flight Fokker Spin rendition Boxkite first strug gled being browsed through book Its no wonder pages ginning work loose 10 drawings Farman biplane Munson book jumped life Id no trouble imagining ac tual airplane better sources dog-eared volume Flight Magazine ten featured Farman between 1912 1924 included good amount detail wanted Boxkite special wanted answer dreams of 10year-old once So once again turned trusty drawings specifications Continued page 76 74 Model Aviation Left Qn right lathe canardlelevator Its aluminum tube spar instalied ieft front fuselage booms showing piywood brack ets act bearings Washers set coiiars anchor assembly together Right upper right iower stabiiizer frames ready gussets interpiane struts trailing edges made As-in aluminum welding rod simulate wire original Boxkite Len iose-up view ot T-gussets usea attach sievators fliseisge frames Combined glue thread wrapping make very strong attachment sure use gussets shown plans very Important models overall strength Right Designing strength airplane distorting its looks required considerable thought can see very strong full-depth vibration-absorbing %-in plywood belicrank mount center section webbing will hidden model covered Pioneer Aircraft 1903-1914 Boxkite name loosely affixed nearly Englishman Henry Farmans early three-flying-surface designs Bris tol Company England obtained li cense build Farman Biplane 1910 Over 70 variations produced caught fancy conjured romantic images British Empire its rudder marking boldly proclaiming Number 12 mission India Since Antoinette designed around Fox 25 engine two seemed logical design Farman around same engine throttled RC engines set throttles both Antoinette Boxkite deliver just enough power fly Too much power spoils realism lumber air half flying half floating Because its simple lines scant struc ture enlarging plans aircraft difficult real task lay design ing practical model around such simplic ity As encounters Scale models have taught successfully dupli cating full-size craft depends using materials close original possible Designing constructing Antoinette last year paved way Dow els plywood wire lot heavy thread primary materials used Boxkite Construction youve caught same bug have lets get started building Boxkite Hunt around until find hardware store carries 48-in -long dowels amaze annoy clerk pawing through en tire stock find enough good straight straight-grained dowels job Watch grain dowel can straight yet have bad grain runs obliquely diago nal breaks likely Search until youve found best lot Its very im portant have sound components part structure Fuselage Construct two side frames Make nearly identical possible Cut out two part exact match frames built time just would sides stick fuselage Mate dowel joints precisely pos sible using collection 14 /8-in round files able make joints almost perfect Take time joints part quite right toss make new Carefully Continued page 183 II U 8555 IUU 76 Model Aviation uuu III 115 irnru 1jun55 L 5 niurn muuus DUXKIIU cuvereg ier Isnt diffIcult turns-consuming Set aside rainy Saturday w I0 0 U WE Z - I~ ~D Z 0O 0 - o C 0 OD1 9 C da 0 g E0S it X 9 E0E - OZo Z L-I 0 N N C 0 Cr 9 0 Cr 0 E Cr 0 9 91 09 ci ite/Haught Continued page 76 glue joint 1 5-to-30-minute epoxy maximum strength side finished cover plastic wrap build second side directly atop will help ensure both sides same Add plywood gussets nose T fittings rear landing skids can added well Stabilizers stabilizers have different config urations theyre built same manner Cut out ribs file concave leading edge using 346-in round file Notch spar locations file notch ribs trail ing edge fit 1/16 aluminum wire trailing edge can get wire local weld ing shop 3-ft lengths Its neat stuff have around Pin leading edge dowels spars over plan Pin down ribs next trailing edge CyA cyanoacrylate glue works best assemblies major assemblies ever use epoxy glue dry lift stabs off plans install /8-in gussets lot Take time position carefully wont show through covering detract models appearance Sand structures carefully set aside front elevator/canard does flying full-size Boxkite coupled rear stabilizers cables model thats un necessary front elevator very effective itself Cut out ribs file out concave lead ing trailing edges Cut out plywood con trol horn mount main spar made %-in aluminum tubing ribs drilled slipped over spar pinned down plans leading trailing edge dowels glued Install control horn plate its flush bottom elevator alu minum spar must extend about beyond end ribs Wings Now real fun begins Cut out wing parts lot ribs stack cut 15 time spacer ribs struts short can easily modif six standard sizes boxful stack-cut ribs lower center ribs Build top wing first Pin down leading edge followed ribs trailing edge spars order Note A-in gaps fu selage frames near center Its easy get caught up building process real ize too late allowed A-in gap Pin everything down check carefully completely satisfied position alignment glue wing assembly together CyA bottom wing little challenging Repeat process used upper wing After glue dry cut fit %-in plywood bellcrank mount Three-eighths-inch plywood ask Yes good reason Because lack rigidity sheeting bridging give open-structured designs like Boxkite highly subject vibration plywood bellcrank mount helps absorb engine load transmit evenly rest airframe A-in sheet webbing between center section ribs performs same function Make sure webbing sheets fit snugly between ribs positioned just below tissue surface bottom wing gets tip weight used four pennies worth lead-out guide also stalled wing bellerank located bottom Drill mounting hole bellcrank install blind nut Make interplane struts use some label ing system differentiate between front back struts engine mount can sawn -in plywood predrilled blind nuts Temporarily position engine mount lower wing drill through fuel over flow tube Trial fit finished fuselage frames both wings frames should slip neatly gaps wings may take some juggling popping few joints get everything come gether right Pin whole works together start measuring gap between top bot tom leading trailing edges must same Make whatever adjustments necessary ac Continued page 184 $11~r CA RES ADD 625% SALES TAX August 1990 183 THE SKY IS NEVER THE LIMIT WHEN YOURE FLYING LANIER RC JAVELIN * BE THE HOT DOG PILOT AT YOUR FIELD WITH THIS LOW-WING SPORT AIRPLANE TAIL FEATHERS MUST BE COVERED OR PAINTED Fuselage Length 37 Wing Span 50 Rec Engine Size Area 350 sq Flying Weight 3 lbs Radio Channels 4 WRITE TODAY FOR YOUR FREE COLOR CATALOG SEND SASE PO Box 458Oakwood GA 30566404-532-6401 MADE 4N THE USA GUNFIGHTERS * POSITIVE FEEL * USED BY TOP PILOTS * FOR FUTABA AIRTRONICS JR OTHERS PLEASE SPECIFY RADIO D Countless thousands got first taste model aviation excitement building flying famous airplane Now commemorate 50th Anniversary birth U-CONTROL proudly announce very special limited-edition kit Jim Walkers 1940 original A-J Fireball kit contains U fully carved Balsa fusealage U Balsa wing tail parts cut shape U hardwood motor mount U special hardware U decals instructions illustrations history A-J Fireball beautiful model airplanes ever created 50th Anniversary A-J Fireball numbered dated signed close humanly possible kits first produced 1940 can make 60 special collector kits available per month order A-J Fireball TODAY FJ YES Enclosed check money order $15950 MAYBE cant decide Please send information A-J Manufacturing Inc WHA P0 Box 68132 Portland OR 97268 503 653-2038 - - - Original EZ UP% Sun Shelters 8 rdy Steel Frames Heavy Duty Fade Resistant Nylon slOx 10Canopies NedWhit Blue miOx 15 Sets Up less 60 Seconds No Ropes Nothing Assemble Authorized E-Z UP Corp Dealer * John Peck Leisure Products Ltd AMA 8580131 Ravenwood Road Other Sizes Colors aillos KY 40383 Accessories Available Plus Custom Logos LetteringWrite1606 873-5172 199O complish epoxy wings frames Once set block up model workbencl wings level table botl directions Block up lower stabilizer matches rear fuselage frames gluc place T fittings After cutting dowel rudder posts lengtl will keep upper stabilizer parallel witt lower glue upper stabilizer Thic lot easier to explain After epoxy has cured stand back admire youi wooden sculpture reminds dinosaui skeleton museum stage Add interplane struts Fit slots left strut bay spacer ribs Before gluing struts place measure gap between wings sure its still equal along entire length engine mount can installed point Set 0-0 thrust Bend landing gear brace wires break out roll heavy thread Begin sewing landing gear wires wing leading trail ing edges Wrap T fittings joining stabiliz ers greatly strengthens joints gives authentic appearance Finish off wrapping landing skid-to-wire joints simple twin rudders should made point 1/s-in-sq sticks Sand edges round prepare covering Covering Most models covered before final assembly Boxkite Set aside Saturday lock yourself workshop go work Apply four coats clear dope entire model sanding between coat used heavy silkspan wings lightweight silkspan elevator stabilizers Begin cutting strips tissue wide enough fit between struts chordwise Cover bot tom wing first working top bottom top wing cover bottom first top elevator simple stabilizers need little explanation Cover bottoms stabs first Apply extra bit dope tis sue trailing edge cover top Press tissue together trailing edge outside wire Leave extra bit tissue trail ing edges until few coats dope have ap plied seal tissue wire dry trim tissue close Finish Boxkite four five coats clear dope until tissue begins exhibit nice sheen looks slightly transparent Make up tail skid parts epoxy leading edges stabilizers Install front elevator opening front fit selage frames wide enough allow tubing spar slip holes drilled frames Dont forget slip washer between frame root rib Add wheel collars secure elevator install control horn bottom el evator Bend shape install pushrod lead-outs Check controls free movement correct binding vintage wheels can installed axle axle rubberbanded skids prototype has wire spoke wheels Im sure well theyll stand up prolonged use Mount engine fuel tank dummy seat footrest rudders can sewn rud der posts offset glued place Rigging another fun part chose use enough add charm much create unnecessary drag restricted mostly fuselage frames Check out photo graphs rig hearts content Remem 184 Model Aviation &* FIREFIM ber what rig needs done well its out everyone can see Keep tight CyA go pulling tight way Flying now youre pretty familiar Boxkite Its time give final check head Out aerodrome Correct adverse warps surfaces Trim down 8 x 4 prop fit between frames least tA -in clearance closest point its arc Balance prop best can carving and/or sand ing heaviest blade Balance Boxkite its nose-heavy first flight front elevator very sensitive model will try porpoise youre ready Practice starting procedure before ac tually fuel up Getting glow plug clips off adjusting needle valve need worked through before engine running Once youve powered up feel excessive vibra tion see loose parts shut engine down make necessary repairs adjustments Enough caveats worries Boxkite designed flying model Enjoy ready nostalgia bug bite Ken neth Munsons book chock-full other pio neer designs await talents modeler Dream Gopher Canyon/Wilson Continued page 87 understanding measuring noise Figure 1 shows series curves relate noise intensity frequency noise rating number N tables 1 2 can estimate public reaction N numbers Referring Table 2 example since de sire no public reaction select corrected noise rating less 40say 35 Table 1 find appropriate noise rating correction factor must subtracted noise rating Thats 5 case field subur ban rather rural setting would use correction factor 0 Since must re flected corrected noise rating ntlmber must use values N ural N uburban graph Figure 1 two-cycle engine speed 12000 rpm would generate exhaust fundamental frequency 200 Hz Following N 30 line 200 Hz get noise intensity 44 dB means present noise 44 dB 200 Hz neighbors property line might safely expect no reaction Assuming airplane measures 90 dB 9 ft well need reduction 46 dB According law inverse square re quires distance ratio 200 19952 pre cise distance neighbor must 9 x 200 ft Now increase rpm 18000 have fundamental frequency 300 Hz Again read ing graph Figure 1 find allowable noise intensity 38 dB 300 Hz requires drop 52 dB translates distance ra tio 400 398 exactly distance neigh bor 3600 ft other extreme reduce rpm 6000 distance acceptability drops 900 ft Note calculations based upon sound measurements taken flat C weight ing nor weighting because weighting accounted ISO curves should apparent figures practice measuring sound power dB alone fundamentally inadequate noise-sensitive field Considering frequency well dBthat Continued page 186 7e 5edtt c4za NEW CONCEPT INAERODYNAMIC DESIGN FOR LEARNING TO FLYR/CAIRCRA FT STEALTUFIAT ltoateglider incredibly light wing loading NASA lifting tiody airfoil design giies onsiirpassed slow flight capability along snperior control response STEALTHBAT made oHO polyfoam ABS High impact styrene toogh feather weight constroction Comes assembled painted THE FUN WAY TO FLY Toss control Toie up like kite release Loop dice Ili-Start launch Slope soar Strap power pod go VISA & MASTERCARD SPECIFICATIONS Wing span45 Wing area700 sq Wing loadingSoz per sq ft Weight radio27 sz Stealthbat onlg Steathbat two sticA two chan net Fututia radio inst ailed Stealthbat single stick two channel Car Cobra radio installed$27995 AVAILABLE THROUGh YOUR DEALER OR DIRECT FROM WINO MPG ordering direct send required amount along $1250 shipping tIling Mfg 306 East Simmons Gatesburg IL 61401 Illinois Residents add 7% soles tax Send $400 far cowlig last time really enjoyed building kit Stinson high quality hand cut kit lots vacuformed extras piece detailed Fiberglass Cowl Wire parts pre-bent complete hardware package included Kit requires 5 servos 7 flaps Wing Span 74 Wt 8-9 lbs Engine Sizes 60-120T FS 60-90 13 Plug Wing Panel easy transporting Go ahead Spoil Yourself Deserve $15900 Postage & Handling Color Catalog nine other quality kits $300 write Call 517-781-3000 Fax 517-781-4322 AERODROME MODELS LTD S Miller Rd naw Ml 48603 LiGHTING SYSTEMS THE #RED 01 #RED 02 #RED 03 #RED 04 #RED 05 #RED 14 #RED 16 #RED 23 ORIGINALS. Still Programmable Flashing Navigation Lights Adjustable Rate Strobe Light Landing Lights Adjustable Rate Mars Rotating Beacon Marine Navigation Lights nonflashing Big Airplane Navigation Lights Econo Landing Lights brightest Real Strobe Light true zenon strobe S SEE YOUR DEALER S SEND STAMPED ENVELOPE FOR RAM INFO II unavailable locally send check money order full credit card info coat item plus $200 $500 foreigni immediate shipment Include full address UPS Sorry no COD cRam 4736 N Milwaukee Ave ago IL 60630 Best $2495 $1995 $3995 $1995 $1095 $2495 $1995 $2995 $13995 $23995 August 1990 185