Radio Control Helicopters ii Larry Jolly THIS MONTH going take look Gorham Model Products latest offering Cobra 206-B Jet Ranger regular reader will recall reviewed Cobra several months ago Cobra its pod-and-boom stock configuration has proved quite good performer whether flown novice expert personally find agile Helicopters have ever flown John Gorham called told made Cobra bet ter raced up Calabasas take first hand look latest creation first saw Jet Ranger fuselage thought myself Cute baby Jet Ranger wonder bad fuselage going hurt Cobras performance learned John intended fly Jet Ranger Nationals following week point figured great deal confidence new bird matter minutes Jet Ranger loaded up off flying field went Johns prototype basic factory-stock Cobra powered OS 50 FSR-H dressed Jet Ranger garb fueled ready fly Jet Ranger tips scales nine-and-a-half pounds Thats roughly two-and-a-half pounds heavier stock Cobra happily surprised see Jet Ranger take air perform exactly right John Gorham R looks mighty calm though Its new prototype Cobrs Jet Rsnger Larrys flying GM Ps new Jet Ranger fiberglass shell encloses Cobra mechanics plenty room spsre below L chopper heavier basic Cobrait weighs 91/2 lb ready fly its 08 50 FSR-H R below Larry says extra weight does hinder acrobatic capability Jet Ranger shape seems cleave air effortlessly Three-view basic civilian Bell model 206B Jet Ranger ii its most-produced Helicopter Western world Theres probably flying near house right now Cobra John able perform very smooth maneuvers never seen John perform autorotation previ ous outing heart nearly stopped watched him deliberately shut motor off alarm proved com pletely unfounded Jet Ranger glided feather-soft landing right feet John asked Id like have go figured might well since after what Id just seen guessed could last through flight live another day So what did find As already knew something magic about Bells classic Jet Ranger shape does look good theres something very aerodynamic about first experience Jet Ranger Schluters Jet Ranger II basically Heli-Boy Jet Ranger glass fuselage weighing stock Hell-Boy still per formed flawlessly fact best-rolling machines have ever flown Cobra Jet Ranger has same characteristics Being slightly heavier stock Cobra makes Jet Ranger Continued page 157 April 1985 59 really great stuff eh See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 59 stable hover Once forward flight decrease drag makes maneuvers just much smoother After flying Jet Ranger sur prised Robert Gorham chose combination successful bid team slot upcoming World Champs smaller size lighter weight 50-powered Helicopter gives apparent edge larger machines diminutive machine can accelerate decelerate quicker well perform flight maneuvers tighter box National competition GMP Jet Ranger has already finished second Intermediate flown John Gorham first US team trials flown Robert Gorham Well have wait see Robert stacks up against Ewald Heim just happens fly own design Jet Ranger called Star Ranger What get money order GMP Jet Ranger get hand-laid laminated fiberglass fuselage polyester resin fuselage very detailed comes complete die-cut A-in plywood formers full-size draw ing clear windows fuselage weighs 22 ounces formers installed As previously men tioned fuselage looks very Japanese originbut 100% domestic Whether youre looking Scale ship sport ship all-out contest bird Cobra Jet Ranger can nicely fit task understand folks GMP working fuselages Cobra mechanics Well keep posted information becomes available months three-view Its no wonder Bell model 206 Jet Ranger most-produced Radio Control Scale Heli copter moment can think eight different RC Jet Rangers produc tion Jet Ranger has become most-recognized full-size machines can ask non-helicopter people identify commercial helicopter just passed overhead nine times out 10 theyll answer correctly Model 206 Jet Ranger designed compete 1961 US Army light observation helicopter LOH program lost competition Hughes OH-6 prototype Model 206 built competition against OH-6 Fairchild-Hiller OH-5 designated OH-4 Army first flew late 1962 less 13 months after ordered Despite its loss OH-6 LOH contract Model 206 became significant commercial success Bell 1968 US Navy ordered 40 slightlymodified Jet Rangers its basic helicop ter flight instruction program designating TH-57A Sea Rangers Shortly thereafter US Army announced Model 206A won reopened LOH competition OH-58A Kiowa initial order 2200 aircraft placed Model 206 has also built under license Italy Australia variants model 206 singleengined general-purpose light helicop ters landing skids two-bladed semi-rigid main rotor anti-torque tail rotor mounted left side tail boom fuselage made up three sections nose semi-monocoque center tail boom accom modation five cabin original Model 206 entered 1961 LOH competition equipped 250-shp Allison T63 turboshaft engine has grown current 317 shp uprated Allison T63 US Navys TH-57As equipped dual controls electronics package modified suit Navys needs US Armys OH-58s have single controls Continued page 160 SAVE OLD 11MER have parts inventory tor prompt delivery Over 235 items Timers ts s etc Coming Ignition Engine Parts Only Send $200 Current List MICRO MODEL ENGINEERING Kirach Municipal Airport 1301 West Latayette StreetSturgis Michigan 49091 echTor THERMO MOLDEDSTRONGA METAL FRAME-GREAT GIFT FOAMFILLED 951255. TransmItter * Protection Case E $35 lechde Shrppra & KondIcg n USCAodd 6%Sond check or 0 * BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 A Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplave 4 Marive K&R FUELS668 GLOW PLUGS 7 BlevOs4 cvvices Matched Finish System BEST APPEARANCE 666 FIBERGLASS CLOTFI 668 Mcrn-Ballvvvs FILLER 668 SUPER FOXY RESIN 668 SUPER POXY THINNER K&R SUPER POXY PRIMER K&R SUPER POXY PAINT 666 MIXING CUPS April 1985157 RC Helicopters/JOlly Continued page 157 extensive communications package can equipped XM-27 armament kit includes 762mm minigun Late 1980 Bell completed 206L Texas Ranger antitank variant designed carry four TOW missiles other weapons helicopter also fit ted roof sight FLIR laser rangefinder/designator Intended multipurpose use aircraft has Allison 250-C30 turboshaft engine Model 206 its variants have proved popular civilian military helicopters world Over 6000 have manufac tured Bell its licensees past 15 years operated non-communist nations Production continued 1981 both Bell United States Agusta Italy Larry Jolly 5501 W Como Santa Ana CA 92703 Patent Off ice/Koniarek Continued page 64 have recent patent shows device similar yours look front patent will see name names examiners issued particular patent try contact likely candidates answer questions examiners experts respective fields some have years experi ence Approaching can pro ductive choose go examin er word caution know exactly what looking avoid generali ties such airplanes two wings will find hundreds expect take too much examiners time examiners have set quota work time very valuable possi ble try make appointment before go see examiner Most phone write examiner expect ing him search something give answer phone writing will personal search PTO impos sible what alternatives engage professional searcher names searchers can found Washington DC yellow pages live away Washington area may want contact patent attorney locality may recommend someone professional searchers vary qual ity excellent poor little research looking before hiring some people usually special ists area take whatever jobs come way specific what want done dealing order avoid misunderstandings futility What kind material can found PTO files useful air craft modelers Well just about anything commercially manufactured usually patented ranges designs advanced jumbo jets smallest parts aircraft course same applies boats cars numerous other devices thousands upon thousands solutions problems form patents would rarely see anywhere else airplane patents both utility design can roughly divided two groups far usefulness model ers concerned first group includes inventions employees large cor porations such Grumman Boeing etc ownership patent can easily ascertained looking front page last page older patentsto see assigned generally patents existing airplanes airplanes existed prototype ones reason another never saw light day usually well thought out designed would make good models too much difficulty other group airplane patents cludes creations individual inven tors working themselves can often though always spotted fact assigned company Watch out numer ous exceptions vary conventional albeit original designs wildest flights fancy terested using unusual patent basis model fact should kept mind patented inventions especially applies airplanes actually made tested fact looks some outrageous alleged flying machines hesitate call anything else can easily see no way world could actually fly proposed Some designs contradict known laws aerodynamics probably yet discovered patents unusual aircraft should dismissed too quickly some may form basis original design willing experiment extensively reward ed truly unique modelor fact invent new flying machine As examples could mention myriad flying saucer designs multiple tandem wing air craft persistent follies aeronautics attaching wings body pilot idea can traced flapping feather-studded wings 100 years ago through later propeller driven versions todays jet driven variations same quixotic scheme addition being used inspire construction patents can also serve research tools usually provide references other patents nonpatent literature describing similar designs solutions fact often finds recent 160 Model Aviation ANOTHER FL IGHT IDEA FROM EMCO Size 1-5I8x2-3l8 On-off-prop stopPre-wired Built-In fuse holderready w120 amp spade fuseyour Charge jack Small gold pin molex Connectors servo Beautiful enamel finish hardware mounting tape furnished Servo Included Specify l 1 ff-Prop Stop$2625 fl Model 2 ff only$2495 Add power resistor Model hi-low-off hi-low-prop stop Instructions included Specify E Futebe FPS 33 Tower TSS-1 0 L] Futeba FPS 20 L Airtronics 94461 Tower TSS-50 U Other mfg servo number add $2 postage & handling TX res add 5% sales tee COD add $2 Don Siegel ASTRO FLIGHT SYSTEMS & ACCESSORIES /V/L0A Electric Model Co 218 Oyster Creek Sugar Land TX 77478 713491-5878 NYLON SCREWS No fancy packaging Just great selection low prices 6-32 x 1is100 sa 832x2lOOsa 10-24 x 11/2100 ea 10-32 x 2100 ea 1/4 20 x 2120 ea /420 x 3200 ea /4-20X48000a Sifialler larger sizes also available Shipping Under $10 add $150 Over $10 Free SjIMARE COMPANY 516 Greenway Drive London KY 40741 Dealer InquIries welcome
Edition: Model Aviation - 1985/04
Page Numbers: 59, 157, 160
Radio Control Helicopters ii Larry Jolly THIS MONTH going take look Gorham Model Products latest offering Cobra 206-B Jet Ranger regular reader will recall reviewed Cobra several months ago Cobra its pod-and-boom stock configuration has proved quite good performer whether flown novice expert personally find agile Helicopters have ever flown John Gorham called told made Cobra bet ter raced up Calabasas take first hand look latest creation first saw Jet Ranger fuselage thought myself Cute baby Jet Ranger wonder bad fuselage going hurt Cobras performance learned John intended fly Jet Ranger Nationals following week point figured great deal confidence new bird matter minutes Jet Ranger loaded up off flying field went Johns prototype basic factory-stock Cobra powered OS 50 FSR-H dressed Jet Ranger garb fueled ready fly Jet Ranger tips scales nine-and-a-half pounds Thats roughly two-and-a-half pounds heavier stock Cobra happily surprised see Jet Ranger take air perform exactly right John Gorham R looks mighty calm though Its new prototype Cobrs Jet Rsnger Larrys flying GM Ps new Jet Ranger fiberglass shell encloses Cobra mechanics plenty room spsre below L chopper heavier basic Cobrait weighs 91/2 lb ready fly its 08 50 FSR-H R below Larry says extra weight does hinder acrobatic capability Jet Ranger shape seems cleave air effortlessly Three-view basic civilian Bell model 206B Jet Ranger ii its most-produced Helicopter Western world Theres probably flying near house right now Cobra John able perform very smooth maneuvers never seen John perform autorotation previ ous outing heart nearly stopped watched him deliberately shut motor off alarm proved com pletely unfounded Jet Ranger glided feather-soft landing right feet John asked Id like have go figured might well since after what Id just seen guessed could last through flight live another day So what did find As already knew something magic about Bells classic Jet Ranger shape does look good theres something very aerodynamic about first experience Jet Ranger Schluters Jet Ranger II basically Heli-Boy Jet Ranger glass fuselage weighing stock Hell-Boy still per formed flawlessly fact best-rolling machines have ever flown Cobra Jet Ranger has same characteristics Being slightly heavier stock Cobra makes Jet Ranger Continued page 157 April 1985 59 really great stuff eh See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 59 stable hover Once forward flight decrease drag makes maneuvers just much smoother After flying Jet Ranger sur prised Robert Gorham chose combination successful bid team slot upcoming World Champs smaller size lighter weight 50-powered Helicopter gives apparent edge larger machines diminutive machine can accelerate decelerate quicker well perform flight maneuvers tighter box National competition GMP Jet Ranger has already finished second Intermediate flown John Gorham first US team trials flown Robert Gorham Well have wait see Robert stacks up against Ewald Heim just happens fly own design Jet Ranger called Star Ranger What get money order GMP Jet Ranger get hand-laid laminated fiberglass fuselage polyester resin fuselage very detailed comes complete die-cut A-in plywood formers full-size draw ing clear windows fuselage weighs 22 ounces formers installed As previously men tioned fuselage looks very Japanese originbut 100% domestic Whether youre looking Scale ship sport ship all-out contest bird Cobra Jet Ranger can nicely fit task understand folks GMP working fuselages Cobra mechanics Well keep posted information becomes available months three-view Its no wonder Bell model 206 Jet Ranger most-produced Radio Control Scale Heli copter moment can think eight different RC Jet Rangers produc tion Jet Ranger has become most-recognized full-size machines can ask non-helicopter people identify commercial helicopter just passed overhead nine times out 10 theyll answer correctly Model 206 Jet Ranger designed compete 1961 US Army light observation helicopter LOH program lost competition Hughes OH-6 prototype Model 206 built competition against OH-6 Fairchild-Hiller OH-5 designated OH-4 Army first flew late 1962 less 13 months after ordered Despite its loss OH-6 LOH contract Model 206 became significant commercial success Bell 1968 US Navy ordered 40 slightlymodified Jet Rangers its basic helicop ter flight instruction program designating TH-57A Sea Rangers Shortly thereafter US Army announced Model 206A won reopened LOH competition OH-58A Kiowa initial order 2200 aircraft placed Model 206 has also built under license Italy Australia variants model 206 singleengined general-purpose light helicop ters landing skids two-bladed semi-rigid main rotor anti-torque tail rotor mounted left side tail boom fuselage made up three sections nose semi-monocoque center tail boom accom modation five cabin original Model 206 entered 1961 LOH competition equipped 250-shp Allison T63 turboshaft engine has grown current 317 shp uprated Allison T63 US Navys TH-57As equipped dual controls electronics package modified suit Navys needs US Armys OH-58s have single controls Continued page 160 SAVE OLD 11MER have parts inventory tor prompt delivery Over 235 items Timers ts s etc Coming Ignition Engine Parts Only Send $200 Current List MICRO MODEL ENGINEERING Kirach Municipal Airport 1301 West Latayette StreetSturgis Michigan 49091 echTor THERMO MOLDEDSTRONGA METAL FRAME-GREAT GIFT FOAMFILLED 951255. TransmItter * Protection Case E $35 lechde Shrppra & KondIcg n USCAodd 6%Sond check or 0 * BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 A Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplave 4 Marive K&R FUELS668 GLOW PLUGS 7 BlevOs4 cvvices Matched Finish System BEST APPEARANCE 666 FIBERGLASS CLOTFI 668 Mcrn-Ballvvvs FILLER 668 SUPER FOXY RESIN 668 SUPER POXY THINNER K&R SUPER POXY PRIMER K&R SUPER POXY PAINT 666 MIXING CUPS April 1985157 RC Helicopters/JOlly Continued page 157 extensive communications package can equipped XM-27 armament kit includes 762mm minigun Late 1980 Bell completed 206L Texas Ranger antitank variant designed carry four TOW missiles other weapons helicopter also fit ted roof sight FLIR laser rangefinder/designator Intended multipurpose use aircraft has Allison 250-C30 turboshaft engine Model 206 its variants have proved popular civilian military helicopters world Over 6000 have manufac tured Bell its licensees past 15 years operated non-communist nations Production continued 1981 both Bell United States Agusta Italy Larry Jolly 5501 W Como Santa Ana CA 92703 Patent Off ice/Koniarek Continued page 64 have recent patent shows device similar yours look front patent will see name names examiners issued particular patent try contact likely candidates answer questions examiners experts respective fields some have years experi ence Approaching can pro ductive choose go examin er word caution know exactly what looking avoid generali ties such airplanes two wings will find hundreds expect take too much examiners time examiners have set quota work time very valuable possi ble try make appointment before go see examiner Most phone write examiner expect ing him search something give answer phone writing will personal search PTO impos sible what alternatives engage professional searcher names searchers can found Washington DC yellow pages live away Washington area may want contact patent attorney locality may recommend someone professional searchers vary qual ity excellent poor little research looking before hiring some people usually special ists area take whatever jobs come way specific what want done dealing order avoid misunderstandings futility What kind material can found PTO files useful air craft modelers Well just about anything commercially manufactured usually patented ranges designs advanced jumbo jets smallest parts aircraft course same applies boats cars numerous other devices thousands upon thousands solutions problems form patents would rarely see anywhere else airplane patents both utility design can roughly divided two groups far usefulness model ers concerned first group includes inventions employees large cor porations such Grumman Boeing etc ownership patent can easily ascertained looking front page last page older patentsto see assigned generally patents existing airplanes airplanes existed prototype ones reason another never saw light day usually well thought out designed would make good models too much difficulty other group airplane patents cludes creations individual inven tors working themselves can often though always spotted fact assigned company Watch out numer ous exceptions vary conventional albeit original designs wildest flights fancy terested using unusual patent basis model fact should kept mind patented inventions especially applies airplanes actually made tested fact looks some outrageous alleged flying machines hesitate call anything else can easily see no way world could actually fly proposed Some designs contradict known laws aerodynamics probably yet discovered patents unusual aircraft should dismissed too quickly some may form basis original design willing experiment extensively reward ed truly unique modelor fact invent new flying machine As examples could mention myriad flying saucer designs multiple tandem wing air craft persistent follies aeronautics attaching wings body pilot idea can traced flapping feather-studded wings 100 years ago through later propeller driven versions todays jet driven variations same quixotic scheme addition being used inspire construction patents can also serve research tools usually provide references other patents nonpatent literature describing similar designs solutions fact often finds recent 160 Model Aviation ANOTHER FL IGHT IDEA FROM EMCO Size 1-5I8x2-3l8 On-off-prop stopPre-wired Built-In fuse holderready w120 amp spade fuseyour Charge jack Small gold pin molex Connectors servo Beautiful enamel finish hardware mounting tape furnished Servo Included Specify l 1 ff-Prop Stop$2625 fl Model 2 ff only$2495 Add power resistor Model hi-low-off hi-low-prop stop Instructions included Specify E Futebe FPS 33 Tower TSS-1 0 L] Futeba FPS 20 L Airtronics 94461 Tower TSS-50 U Other mfg servo number add $2 postage & handling TX res add 5% sales tee COD add $2 Don Siegel ASTRO FLIGHT SYSTEMS & ACCESSORIES /V/L0A Electric Model Co 218 Oyster Creek Sugar Land TX 77478 713491-5878 NYLON SCREWS No fancy packaging Just great selection low prices 6-32 x 1is100 sa 832x2lOOsa 10-24 x 11/2100 ea 10-32 x 2100 ea 1/4 20 x 2120 ea /420 x 3200 ea /4-20X48000a Sifialler larger sizes also available Shipping Under $10 add $150 Over $10 Free SjIMARE COMPANY 516 Greenway Drive London KY 40741 Dealer InquIries welcome
Edition: Model Aviation - 1985/04
Page Numbers: 59, 157, 160
Radio Control Helicopters ii Larry Jolly THIS MONTH going take look Gorham Model Products latest offering Cobra 206-B Jet Ranger regular reader will recall reviewed Cobra several months ago Cobra its pod-and-boom stock configuration has proved quite good performer whether flown novice expert personally find agile Helicopters have ever flown John Gorham called told made Cobra bet ter raced up Calabasas take first hand look latest creation first saw Jet Ranger fuselage thought myself Cute baby Jet Ranger wonder bad fuselage going hurt Cobras performance learned John intended fly Jet Ranger Nationals following week point figured great deal confidence new bird matter minutes Jet Ranger loaded up off flying field went Johns prototype basic factory-stock Cobra powered OS 50 FSR-H dressed Jet Ranger garb fueled ready fly Jet Ranger tips scales nine-and-a-half pounds Thats roughly two-and-a-half pounds heavier stock Cobra happily surprised see Jet Ranger take air perform exactly right John Gorham R looks mighty calm though Its new prototype Cobrs Jet Rsnger Larrys flying GM Ps new Jet Ranger fiberglass shell encloses Cobra mechanics plenty room spsre below L chopper heavier basic Cobrait weighs 91/2 lb ready fly its 08 50 FSR-H R below Larry says extra weight does hinder acrobatic capability Jet Ranger shape seems cleave air effortlessly Three-view basic civilian Bell model 206B Jet Ranger ii its most-produced Helicopter Western world Theres probably flying near house right now Cobra John able perform very smooth maneuvers never seen John perform autorotation previ ous outing heart nearly stopped watched him deliberately shut motor off alarm proved com pletely unfounded Jet Ranger glided feather-soft landing right feet John asked Id like have go figured might well since after what Id just seen guessed could last through flight live another day So what did find As already knew something magic about Bells classic Jet Ranger shape does look good theres something very aerodynamic about first experience Jet Ranger Schluters Jet Ranger II basically Heli-Boy Jet Ranger glass fuselage weighing stock Hell-Boy still per formed flawlessly fact best-rolling machines have ever flown Cobra Jet Ranger has same characteristics Being slightly heavier stock Cobra makes Jet Ranger Continued page 157 April 1985 59 really great stuff eh See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 59 stable hover Once forward flight decrease drag makes maneuvers just much smoother After flying Jet Ranger sur prised Robert Gorham chose combination successful bid team slot upcoming World Champs smaller size lighter weight 50-powered Helicopter gives apparent edge larger machines diminutive machine can accelerate decelerate quicker well perform flight maneuvers tighter box National competition GMP Jet Ranger has already finished second Intermediate flown John Gorham first US team trials flown Robert Gorham Well have wait see Robert stacks up against Ewald Heim just happens fly own design Jet Ranger called Star Ranger What get money order GMP Jet Ranger get hand-laid laminated fiberglass fuselage polyester resin fuselage very detailed comes complete die-cut A-in plywood formers full-size draw ing clear windows fuselage weighs 22 ounces formers installed As previously men tioned fuselage looks very Japanese originbut 100% domestic Whether youre looking Scale ship sport ship all-out contest bird Cobra Jet Ranger can nicely fit task understand folks GMP working fuselages Cobra mechanics Well keep posted information becomes available months three-view Its no wonder Bell model 206 Jet Ranger most-produced Radio Control Scale Heli copter moment can think eight different RC Jet Rangers produc tion Jet Ranger has become most-recognized full-size machines can ask non-helicopter people identify commercial helicopter just passed overhead nine times out 10 theyll answer correctly Model 206 Jet Ranger designed compete 1961 US Army light observation helicopter LOH program lost competition Hughes OH-6 prototype Model 206 built competition against OH-6 Fairchild-Hiller OH-5 designated OH-4 Army first flew late 1962 less 13 months after ordered Despite its loss OH-6 LOH contract Model 206 became significant commercial success Bell 1968 US Navy ordered 40 slightlymodified Jet Rangers its basic helicop ter flight instruction program designating TH-57A Sea Rangers Shortly thereafter US Army announced Model 206A won reopened LOH competition OH-58A Kiowa initial order 2200 aircraft placed Model 206 has also built under license Italy Australia variants model 206 singleengined general-purpose light helicop ters landing skids two-bladed semi-rigid main rotor anti-torque tail rotor mounted left side tail boom fuselage made up three sections nose semi-monocoque center tail boom accom modation five cabin original Model 206 entered 1961 LOH competition equipped 250-shp Allison T63 turboshaft engine has grown current 317 shp uprated Allison T63 US Navys TH-57As equipped dual controls electronics package modified suit Navys needs US Armys OH-58s have single controls Continued page 160 SAVE OLD 11MER have parts inventory tor prompt delivery Over 235 items Timers ts s etc Coming Ignition Engine Parts Only Send $200 Current List MICRO MODEL ENGINEERING Kirach Municipal Airport 1301 West Latayette StreetSturgis Michigan 49091 echTor THERMO MOLDEDSTRONGA METAL FRAME-GREAT GIFT FOAMFILLED 951255. TransmItter * Protection Case E $35 lechde Shrppra & KondIcg n USCAodd 6%Sond check or 0 * BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632 A Matched Performance System TOP PERFORMANCE K&B ENGINES 16 Airplave 4 Marive K&R FUELS668 GLOW PLUGS 7 BlevOs4 cvvices Matched Finish System BEST APPEARANCE 666 FIBERGLASS CLOTFI 668 Mcrn-Ballvvvs FILLER 668 SUPER FOXY RESIN 668 SUPER POXY THINNER K&R SUPER POXY PRIMER K&R SUPER POXY PAINT 666 MIXING CUPS April 1985157 RC Helicopters/JOlly Continued page 157 extensive communications package can equipped XM-27 armament kit includes 762mm minigun Late 1980 Bell completed 206L Texas Ranger antitank variant designed carry four TOW missiles other weapons helicopter also fit ted roof sight FLIR laser rangefinder/designator Intended multipurpose use aircraft has Allison 250-C30 turboshaft engine Model 206 its variants have proved popular civilian military helicopters world Over 6000 have manufac tured Bell its licensees past 15 years operated non-communist nations Production continued 1981 both Bell United States Agusta Italy Larry Jolly 5501 W Como Santa Ana CA 92703 Patent Off ice/Koniarek Continued page 64 have recent patent shows device similar yours look front patent will see name names examiners issued particular patent try contact likely candidates answer questions examiners experts respective fields some have years experi ence Approaching can pro ductive choose go examin er word caution know exactly what looking avoid generali ties such airplanes two wings will find hundreds expect take too much examiners time examiners have set quota work time very valuable possi ble try make appointment before go see examiner Most phone write examiner expect ing him search something give answer phone writing will personal search PTO impos sible what alternatives engage professional searcher names searchers can found Washington DC yellow pages live away Washington area may want contact patent attorney locality may recommend someone professional searchers vary qual ity excellent poor little research looking before hiring some people usually special ists area take whatever jobs come way specific what want done dealing order avoid misunderstandings futility What kind material can found PTO files useful air craft modelers Well just about anything commercially manufactured usually patented ranges designs advanced jumbo jets smallest parts aircraft course same applies boats cars numerous other devices thousands upon thousands solutions problems form patents would rarely see anywhere else airplane patents both utility design can roughly divided two groups far usefulness model ers concerned first group includes inventions employees large cor porations such Grumman Boeing etc ownership patent can easily ascertained looking front page last page older patentsto see assigned generally patents existing airplanes airplanes existed prototype ones reason another never saw light day usually well thought out designed would make good models too much difficulty other group airplane patents cludes creations individual inven tors working themselves can often though always spotted fact assigned company Watch out numer ous exceptions vary conventional albeit original designs wildest flights fancy terested using unusual patent basis model fact should kept mind patented inventions especially applies airplanes actually made tested fact looks some outrageous alleged flying machines hesitate call anything else can easily see no way world could actually fly proposed Some designs contradict known laws aerodynamics probably yet discovered patents unusual aircraft should dismissed too quickly some may form basis original design willing experiment extensively reward ed truly unique modelor fact invent new flying machine As examples could mention myriad flying saucer designs multiple tandem wing air craft persistent follies aeronautics attaching wings body pilot idea can traced flapping feather-studded wings 100 years ago through later propeller driven versions todays jet driven variations same quixotic scheme addition being used inspire construction patents can also serve research tools usually provide references other patents nonpatent literature describing similar designs solutions fact often finds recent 160 Model Aviation ANOTHER FL IGHT IDEA FROM EMCO Size 1-5I8x2-3l8 On-off-prop stopPre-wired Built-In fuse holderready w120 amp spade fuseyour Charge jack Small gold pin molex Connectors servo Beautiful enamel finish hardware mounting tape furnished Servo Included Specify l 1 ff-Prop Stop$2625 fl Model 2 ff only$2495 Add power resistor Model hi-low-off hi-low-prop stop Instructions included Specify E Futebe FPS 33 Tower TSS-1 0 L] Futeba FPS 20 L Airtronics 94461 Tower TSS-50 U Other mfg servo number add $2 postage & handling TX res add 5% sales tee COD add $2 Don Siegel ASTRO FLIGHT SYSTEMS & ACCESSORIES /V/L0A Electric Model Co 218 Oyster Creek Sugar Land TX 77478 713491-5878 NYLON SCREWS No fancy packaging Just great selection low prices 6-32 x 1is100 sa 832x2lOOsa 10-24 x 11/2100 ea 10-32 x 2100 ea 1/4 20 x 2120 ea /420 x 3200 ea /4-20X48000a Sifialler larger sizes also available Shipping Under $10 add $150 Over $10 Free SjIMARE COMPANY 516 Greenway Drive London KY 40741 Dealer InquIries welcome