RADIO CONTROL HELICOPTERS Tfl b PITCH CURVES previous issue talked about some special features helicopter radio has compared airplane radio However purchase helicopter radio will still take understanding various functions make everything come together suitable program will make helicopter fly way want critical helicopter parameters pitch curvehow collective pitch follows movements throttle/collective TIC stick Several years ago helicopter radios gave us ability adjust endpoints collective pitch range connected straight line opposed curve advent computer radio have ability adjust shape curve between endpoints vary collective pitch output relation control stick input Although pitch curves may sound intimidating take step time quite easy understand apply provide new level control helicopter flight no single right wrong way adjust pitch curve Whatever said subject strictly matter technique Its up individual taste what works best helicopter following technique use Its logical simplifies process easy-to-understand step-by-step approach Initial Parameters Some less-expensive radios may provide adjustments pitch range advanced radios provide several flight modes its own pitch curve well other adjustable parameters recommend get best equipment can comfortably affordyou will quickly outgrow lower-performance radio Keeping radio limitations mind determine what maneuvers would like perform available collectivepitch ranges Assume have three basic flight modes normal idleup throttle-hold radio may have flight modes three will suffice discussion Lets say normal mode will used just hovering Youre interested rapid climbs descentsjust good hovering platform very sensitive collective inputs idle-up mode will used general flight limited aerobatics Throttle-hold mode will used autorotation get performance looking have match correct pitch curve three flight modes As starting point consider following collective-pitch ranges initial setup noting required pitch window range Normal ~l0 70 80 window Idle up 30 90 window Throttle hold 40 120 window initial collective-pitch estimates biggest window needed 160 autorotation next step verify helicopter can provide 160 window Mechanical Setup following discussion pitch windows Im concerned actual pitch readings just pitch windows provide Adjusting exact collective pitch numbers will accomplished later Disconnect collective pushrod its servo push maximum collective-pitch limit Measure pitch pitch gauge pull pushrod obtain lower collective-pitch limit What window its 160 fine less 160 collective-pitch system helicopter must undergo some mechanical changes provide required window helicopter will have some physical pitch limits cannot obtain total pitch window need will have modify pitch ranges Assuming can obtain 160 window set pitch endpoints radio 100% total throw Attach pushrod servo again measure pitch window Move pushrod out servo arm obtain needed 160 window measurement can slightly larger 160 gives full working motion servo developing its maximum torque reducing effect gear-mesh sloppiness Now pitch window has obtained use 98 Model Aviation k mechanical collective-pitch limits verify available pitch window Note new 30-size KSJ muffler Exact pitch limits different flight modes easily determined using pitch gauge adjusting radio program ARISE muffler looks right home attached stock OS 60 muffler Reduces noise made fit muffler pushrods swashplate head adjust high- low-pitch points 120 4 per chart Now youve set up helicopter radio overall parameters its simple use pitch curves radio make fine adjustments Electronic Setup Starting normal flight mode place pitch gauge helicopter reduce lower-pitch curve until 1 obtained low stick Reduce high end pitch curve until 70 obtained full stick Note midpoint between lo 7 30 should mid-stick position close hover point Adjust high- low-pitch curve points idle-up mode obtain desired 30 90 range Note mid-stick position again close 30 However no pitch-curve adjustments will needed throttle-hold curve since defines overall pitch window Note mid-stick position throttle-hold about 40 really problem since dont spend time pitch location Once helicopter adjusted correct parameters fly see helicopter performs Slight changes pitch curve may needed flight mode fine-tune helicopter radio has adjustable points within pitch range may want change shape curve see affects flight performance pitch throttle curves advanced radio can really improve flying characteristics helicopter However no matter advanced radio its still important remember basic setup sequence 1 Estimate pitch-curve requirements 2 Mechanically set up maximum window needed 3 Adjust pitch maximum minimum requirements 4 Fine-tune curves flight mode NEW BIG Lazy Bee tinally tor modelers fly BIG planes has same amazing low speed flying characteristics smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us could go on about tight turns short take offs snap rolls hands-off stability gives ability self-recover attitude super slow stall speed I Seeing Believingl Get 35 mm video see Lazy Bee perform aerobatics taxi over 2 x 4s fly floats gas & electric power fly formation ducks morel New low price just SlO including shippingl New Products During nice summer days youre doing lot flying its handy have small quick-charger field transmitter receiver batteries M&E Electronics produces Rapid Nicad Charger Ive using some time great success Working 12-volt battery unit push-button automatic Red lights indicate fast charge transmitter receiver changes slow charge automatically DIE OX READY-TO-FLY LAZY BEELAZY BEE Just shake out box go flying huge wlng Standard 40 wing Kit -$54- Extended Wing 48 wing Kit -$60 Float Kit -$24 makes ideal beginne s Expe ts w enjoy espon sive oversized contro su faces Low Price Guarantee mill 049 puwered 39 spun withs ad ONLY $109 BEE S PP Nd N 5-beat advertised OR wth 2chunner 22 MHz 2s ck ass ONLY $179RE 5P50 N 5Lazy Bee Priceul Prices include Priority Mail Co e land plane float plane 2 nrintes Ojin impruved Lazy Bee Kits feature New compJter drawn pans TRXLRBALLOONWN[LSNfWSIZI6DIA New! Iectrification ombination Only $119 Quick Service Call rca 1935 hysiable n sizes rum 1 toE niameter forn,, -orr onun-rsnr-mra1re-coe rcoe n -rarrc&Fooro n onamuon -52 inencvjon -o vanesftOtn5uz025 551000 eoorc 0rairooor uoo yarn oar -inp cuor rvcyv cL unosnywo 5OOnTE o September 199599 Rapid Nicad Charger great flying summer days Just plug transmitter receivereverything automatic 9VYTW TT way have hard time reading tiny print reaiiy should get Lazy Bee — its easy 10 seep BEE 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Ben Accepts 25 45 2-cycle Electric 45 70 4-cycle Super Low Wing Loading 78 t t 2 oz sq BIG Wing Area Over 5 Sq Ft lStd 60 Wingl tO Sq Ft 72 Eatended bvingli Optional Removable Tail Easy Transport Optiousi Bolt-on Wing nciudes computer drawn plans covering attains detailed instruction book Precut Balsa nd Plywood parts carbon liber stainless steel s and plastic ron-on windows FREE NEWSLETTER Herky says ounce counts buy engine weighs ounce High RPM OK CUB 049 engines Made last USA $1395 pp Write copy free newsletter send $2 24 page engine parts catalog P0 BOX 355 MOHAWK NY 13407 the batteries reach full charge After few flights hook up charger take rest talk other fliers Contact M&E 354 Manchester St Suite 224 Manchester NH 03103 Most engine manufacturers produce stock muffler usually designed airplane use Often dont muffle very well rob engine power us have flying have several lying around Now Arise offers conversion kit make better use mufflers Simply cut off aft portion stock muffler mount Arise muffler solution front portion provided hardware special design Arise reduces back pressure noticeably lowering sound Because its designed concentric rings will fit almost original muffler Dont throw away old stock mufflersmake work better Contact Arise 2678 Lower Concession Ormstown Quebec Canada JOS lKO Horizon Hobby Distributors has new KSJ 30-size muffler elevate 30-size mufflers new quality level entire unit CNC machined will fit helicopters has finish looks almost too good helicopter design allows complete adjustment muffler bodyits screwed onto header distance between muffler engine adjustable angle header body should fit application locking collar setscrew holds everything place initial flight tests showed no noticeable power loss effectively silenced exhaust acceptable level Contact Horizon Hobby Distributors 4105 Fieldstone Rd Champaign IL 61821 REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINE~ What look CA hinge Experience no can match SIGs 10 years ot development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment tor secure grip facing comes off hinge will come out Pacing Thin easy insert hinge Tr e s across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK-EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still best name CA hinges SH-710 Pkg 24- S29b Materials Total Thickness Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Trtmont flImintin Strength Slots Holes Glue Action Wirkinn A A F n A F n B F F F n F F C4 F D D F F DelayedCureACCFFFF Average Grade 0 BC C0D SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 515 623-5154 100 Model Aviation NGINES TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two difterent shapes available stock Ask hobby dealer name tentZT PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY GREAT LOOKS SAFETY PO Box 836 South Houston Texas 77587 713 / 943-1867
Edition: Model Aviation - 1995/09
Page Numbers: 98, 99, 100
RADIO CONTROL HELICOPTERS Tfl b PITCH CURVES previous issue talked about some special features helicopter radio has compared airplane radio However purchase helicopter radio will still take understanding various functions make everything come together suitable program will make helicopter fly way want critical helicopter parameters pitch curvehow collective pitch follows movements throttle/collective TIC stick Several years ago helicopter radios gave us ability adjust endpoints collective pitch range connected straight line opposed curve advent computer radio have ability adjust shape curve between endpoints vary collective pitch output relation control stick input Although pitch curves may sound intimidating take step time quite easy understand apply provide new level control helicopter flight no single right wrong way adjust pitch curve Whatever said subject strictly matter technique Its up individual taste what works best helicopter following technique use Its logical simplifies process easy-to-understand step-by-step approach Initial Parameters Some less-expensive radios may provide adjustments pitch range advanced radios provide several flight modes its own pitch curve well other adjustable parameters recommend get best equipment can comfortably affordyou will quickly outgrow lower-performance radio Keeping radio limitations mind determine what maneuvers would like perform available collectivepitch ranges Assume have three basic flight modes normal idleup throttle-hold radio may have flight modes three will suffice discussion Lets say normal mode will used just hovering Youre interested rapid climbs descentsjust good hovering platform very sensitive collective inputs idle-up mode will used general flight limited aerobatics Throttle-hold mode will used autorotation get performance looking have match correct pitch curve three flight modes As starting point consider following collective-pitch ranges initial setup noting required pitch window range Normal ~l0 70 80 window Idle up 30 90 window Throttle hold 40 120 window initial collective-pitch estimates biggest window needed 160 autorotation next step verify helicopter can provide 160 window Mechanical Setup following discussion pitch windows Im concerned actual pitch readings just pitch windows provide Adjusting exact collective pitch numbers will accomplished later Disconnect collective pushrod its servo push maximum collective-pitch limit Measure pitch pitch gauge pull pushrod obtain lower collective-pitch limit What window its 160 fine less 160 collective-pitch system helicopter must undergo some mechanical changes provide required window helicopter will have some physical pitch limits cannot obtain total pitch window need will have modify pitch ranges Assuming can obtain 160 window set pitch endpoints radio 100% total throw Attach pushrod servo again measure pitch window Move pushrod out servo arm obtain needed 160 window measurement can slightly larger 160 gives full working motion servo developing its maximum torque reducing effect gear-mesh sloppiness Now pitch window has obtained use 98 Model Aviation k mechanical collective-pitch limits verify available pitch window Note new 30-size KSJ muffler Exact pitch limits different flight modes easily determined using pitch gauge adjusting radio program ARISE muffler looks right home attached stock OS 60 muffler Reduces noise made fit muffler pushrods swashplate head adjust high- low-pitch points 120 4 per chart Now youve set up helicopter radio overall parameters its simple use pitch curves radio make fine adjustments Electronic Setup Starting normal flight mode place pitch gauge helicopter reduce lower-pitch curve until 1 obtained low stick Reduce high end pitch curve until 70 obtained full stick Note midpoint between lo 7 30 should mid-stick position close hover point Adjust high- low-pitch curve points idle-up mode obtain desired 30 90 range Note mid-stick position again close 30 However no pitch-curve adjustments will needed throttle-hold curve since defines overall pitch window Note mid-stick position throttle-hold about 40 really problem since dont spend time pitch location Once helicopter adjusted correct parameters fly see helicopter performs Slight changes pitch curve may needed flight mode fine-tune helicopter radio has adjustable points within pitch range may want change shape curve see affects flight performance pitch throttle curves advanced radio can really improve flying characteristics helicopter However no matter advanced radio its still important remember basic setup sequence 1 Estimate pitch-curve requirements 2 Mechanically set up maximum window needed 3 Adjust pitch maximum minimum requirements 4 Fine-tune curves flight mode NEW BIG Lazy Bee tinally tor modelers fly BIG planes has same amazing low speed flying characteristics smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us could go on about tight turns short take offs snap rolls hands-off stability gives ability self-recover attitude super slow stall speed I Seeing Believingl Get 35 mm video see Lazy Bee perform aerobatics taxi over 2 x 4s fly floats gas & electric power fly formation ducks morel New low price just SlO including shippingl New Products During nice summer days youre doing lot flying its handy have small quick-charger field transmitter receiver batteries M&E Electronics produces Rapid Nicad Charger Ive using some time great success Working 12-volt battery unit push-button automatic Red lights indicate fast charge transmitter receiver changes slow charge automatically DIE OX READY-TO-FLY LAZY BEELAZY BEE Just shake out box go flying huge wlng Standard 40 wing Kit -$54- Extended Wing 48 wing Kit -$60 Float Kit -$24 makes ideal beginne s Expe ts w enjoy espon sive oversized contro su faces Low Price Guarantee mill 049 puwered 39 spun withs ad ONLY $109 BEE S PP Nd N 5-beat advertised OR wth 2chunner 22 MHz 2s ck ass ONLY $179RE 5P50 N 5Lazy Bee Priceul Prices include Priority Mail Co e land plane float plane 2 nrintes Ojin impruved Lazy Bee Kits feature New compJter drawn pans TRXLRBALLOONWN[LSNfWSIZI6DIA New! Iectrification ombination Only $119 Quick Service Call rca 1935 hysiable n sizes rum 1 toE niameter forn,, -orr onun-rsnr-mra1re-coe rcoe n -rarrc&Fooro n onamuon -52 inencvjon -o vanesftOtn5uz025 551000 eoorc 0rairooor uoo yarn oar -inp cuor rvcyv cL unosnywo 5OOnTE o September 199599 Rapid Nicad Charger great flying summer days Just plug transmitter receivereverything automatic 9VYTW TT way have hard time reading tiny print reaiiy should get Lazy Bee — its easy 10 seep BEE 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Ben Accepts 25 45 2-cycle Electric 45 70 4-cycle Super Low Wing Loading 78 t t 2 oz sq BIG Wing Area Over 5 Sq Ft lStd 60 Wingl tO Sq Ft 72 Eatended bvingli Optional Removable Tail Easy Transport Optiousi Bolt-on Wing nciudes computer drawn plans covering attains detailed instruction book Precut Balsa nd Plywood parts carbon liber stainless steel s and plastic ron-on windows FREE NEWSLETTER Herky says ounce counts buy engine weighs ounce High RPM OK CUB 049 engines Made last USA $1395 pp Write copy free newsletter send $2 24 page engine parts catalog P0 BOX 355 MOHAWK NY 13407 the batteries reach full charge After few flights hook up charger take rest talk other fliers Contact M&E 354 Manchester St Suite 224 Manchester NH 03103 Most engine manufacturers produce stock muffler usually designed airplane use Often dont muffle very well rob engine power us have flying have several lying around Now Arise offers conversion kit make better use mufflers Simply cut off aft portion stock muffler mount Arise muffler solution front portion provided hardware special design Arise reduces back pressure noticeably lowering sound Because its designed concentric rings will fit almost original muffler Dont throw away old stock mufflersmake work better Contact Arise 2678 Lower Concession Ormstown Quebec Canada JOS lKO Horizon Hobby Distributors has new KSJ 30-size muffler elevate 30-size mufflers new quality level entire unit CNC machined will fit helicopters has finish looks almost too good helicopter design allows complete adjustment muffler bodyits screwed onto header distance between muffler engine adjustable angle header body should fit application locking collar setscrew holds everything place initial flight tests showed no noticeable power loss effectively silenced exhaust acceptable level Contact Horizon Hobby Distributors 4105 Fieldstone Rd Champaign IL 61821 REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINE~ What look CA hinge Experience no can match SIGs 10 years ot development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment tor secure grip facing comes off hinge will come out Pacing Thin easy insert hinge Tr e s across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK-EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still best name CA hinges SH-710 Pkg 24- S29b Materials Total Thickness Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Trtmont flImintin Strength Slots Holes Glue Action Wirkinn A A F n A F n B F F F n F F C4 F D D F F DelayedCureACCFFFF Average Grade 0 BC C0D SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 515 623-5154 100 Model Aviation NGINES TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two difterent shapes available stock Ask hobby dealer name tentZT PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY GREAT LOOKS SAFETY PO Box 836 South Houston Texas 77587 713 / 943-1867
Edition: Model Aviation - 1995/09
Page Numbers: 98, 99, 100
RADIO CONTROL HELICOPTERS Tfl b PITCH CURVES previous issue talked about some special features helicopter radio has compared airplane radio However purchase helicopter radio will still take understanding various functions make everything come together suitable program will make helicopter fly way want critical helicopter parameters pitch curvehow collective pitch follows movements throttle/collective TIC stick Several years ago helicopter radios gave us ability adjust endpoints collective pitch range connected straight line opposed curve advent computer radio have ability adjust shape curve between endpoints vary collective pitch output relation control stick input Although pitch curves may sound intimidating take step time quite easy understand apply provide new level control helicopter flight no single right wrong way adjust pitch curve Whatever said subject strictly matter technique Its up individual taste what works best helicopter following technique use Its logical simplifies process easy-to-understand step-by-step approach Initial Parameters Some less-expensive radios may provide adjustments pitch range advanced radios provide several flight modes its own pitch curve well other adjustable parameters recommend get best equipment can comfortably affordyou will quickly outgrow lower-performance radio Keeping radio limitations mind determine what maneuvers would like perform available collectivepitch ranges Assume have three basic flight modes normal idleup throttle-hold radio may have flight modes three will suffice discussion Lets say normal mode will used just hovering Youre interested rapid climbs descentsjust good hovering platform very sensitive collective inputs idle-up mode will used general flight limited aerobatics Throttle-hold mode will used autorotation get performance looking have match correct pitch curve three flight modes As starting point consider following collective-pitch ranges initial setup noting required pitch window range Normal ~l0 70 80 window Idle up 30 90 window Throttle hold 40 120 window initial collective-pitch estimates biggest window needed 160 autorotation next step verify helicopter can provide 160 window Mechanical Setup following discussion pitch windows Im concerned actual pitch readings just pitch windows provide Adjusting exact collective pitch numbers will accomplished later Disconnect collective pushrod its servo push maximum collective-pitch limit Measure pitch pitch gauge pull pushrod obtain lower collective-pitch limit What window its 160 fine less 160 collective-pitch system helicopter must undergo some mechanical changes provide required window helicopter will have some physical pitch limits cannot obtain total pitch window need will have modify pitch ranges Assuming can obtain 160 window set pitch endpoints radio 100% total throw Attach pushrod servo again measure pitch window Move pushrod out servo arm obtain needed 160 window measurement can slightly larger 160 gives full working motion servo developing its maximum torque reducing effect gear-mesh sloppiness Now pitch window has obtained use 98 Model Aviation k mechanical collective-pitch limits verify available pitch window Note new 30-size KSJ muffler Exact pitch limits different flight modes easily determined using pitch gauge adjusting radio program ARISE muffler looks right home attached stock OS 60 muffler Reduces noise made fit muffler pushrods swashplate head adjust high- low-pitch points 120 4 per chart Now youve set up helicopter radio overall parameters its simple use pitch curves radio make fine adjustments Electronic Setup Starting normal flight mode place pitch gauge helicopter reduce lower-pitch curve until 1 obtained low stick Reduce high end pitch curve until 70 obtained full stick Note midpoint between lo 7 30 should mid-stick position close hover point Adjust high- low-pitch curve points idle-up mode obtain desired 30 90 range Note mid-stick position again close 30 However no pitch-curve adjustments will needed throttle-hold curve since defines overall pitch window Note mid-stick position throttle-hold about 40 really problem since dont spend time pitch location Once helicopter adjusted correct parameters fly see helicopter performs Slight changes pitch curve may needed flight mode fine-tune helicopter radio has adjustable points within pitch range may want change shape curve see affects flight performance pitch throttle curves advanced radio can really improve flying characteristics helicopter However no matter advanced radio its still important remember basic setup sequence 1 Estimate pitch-curve requirements 2 Mechanically set up maximum window needed 3 Adjust pitch maximum minimum requirements 4 Fine-tune curves flight mode NEW BIG Lazy Bee tinally tor modelers fly BIG planes has same amazing low speed flying characteristics smaller Lazy Bee amazing character istics Cox decided manufacture Cox RTF Lazy Bee under license us could go on about tight turns short take offs snap rolls hands-off stability gives ability self-recover attitude super slow stall speed I Seeing Believingl Get 35 mm video see Lazy Bee perform aerobatics taxi over 2 x 4s fly floats gas & electric power fly formation ducks morel New low price just SlO including shippingl New Products During nice summer days youre doing lot flying its handy have small quick-charger field transmitter receiver batteries M&E Electronics produces Rapid Nicad Charger Ive using some time great success Working 12-volt battery unit push-button automatic Red lights indicate fast charge transmitter receiver changes slow charge automatically DIE OX READY-TO-FLY LAZY BEELAZY BEE Just shake out box go flying huge wlng Standard 40 wing Kit -$54- Extended Wing 48 wing Kit -$60 Float Kit -$24 makes ideal beginne s Expe ts w enjoy espon sive oversized contro su faces Low Price Guarantee mill 049 puwered 39 spun withs ad ONLY $109 BEE S PP Nd N 5-beat advertised OR wth 2chunner 22 MHz 2s ck ass ONLY $179RE 5P50 N 5Lazy Bee Priceul Prices include Priority Mail Co e land plane float plane 2 nrintes Ojin impruved Lazy Bee Kits feature New compJter drawn pans TRXLRBALLOONWN[LSNfWSIZI6DIA New! Iectrification ombination Only $119 Quick Service Call rca 1935 hysiable n sizes rum 1 toE niameter forn,, -orr onun-rsnr-mra1re-coe rcoe n -rarrc&Fooro n onamuon -52 inencvjon -o vanesftOtn5uz025 551000 eoorc 0rairooor uoo yarn oar -inp cuor rvcyv cL unosnywo 5OOnTE o September 199599 Rapid Nicad Charger great flying summer days Just plug transmitter receivereverything automatic 9VYTW TT way have hard time reading tiny print reaiiy should get Lazy Bee — its easy 10 seep BEE 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Ben Accepts 25 45 2-cycle Electric 45 70 4-cycle Super Low Wing Loading 78 t t 2 oz sq BIG Wing Area Over 5 Sq Ft lStd 60 Wingl tO Sq Ft 72 Eatended bvingli Optional Removable Tail Easy Transport Optiousi Bolt-on Wing nciudes computer drawn plans covering attains detailed instruction book Precut Balsa nd Plywood parts carbon liber stainless steel s and plastic ron-on windows FREE NEWSLETTER Herky says ounce counts buy engine weighs ounce High RPM OK CUB 049 engines Made last USA $1395 pp Write copy free newsletter send $2 24 page engine parts catalog P0 BOX 355 MOHAWK NY 13407 the batteries reach full charge After few flights hook up charger take rest talk other fliers Contact M&E 354 Manchester St Suite 224 Manchester NH 03103 Most engine manufacturers produce stock muffler usually designed airplane use Often dont muffle very well rob engine power us have flying have several lying around Now Arise offers conversion kit make better use mufflers Simply cut off aft portion stock muffler mount Arise muffler solution front portion provided hardware special design Arise reduces back pressure noticeably lowering sound Because its designed concentric rings will fit almost original muffler Dont throw away old stock mufflersmake work better Contact Arise 2678 Lower Concession Ormstown Quebec Canada JOS lKO Horizon Hobby Distributors has new KSJ 30-size muffler elevate 30-size mufflers new quality level entire unit CNC machined will fit helicopters has finish looks almost too good helicopter design allows complete adjustment muffler bodyits screwed onto header distance between muffler engine adjustable angle header body should fit application locking collar setscrew holds everything place initial flight tests showed no noticeable power loss effectively silenced exhaust acceptable level Contact Horizon Hobby Distributors 4105 Fieldstone Rd Champaign IL 61821 REPORT CARD ON HINGES After ten years everybody thinks schools out hinges Lets grade competition see needs classes EASY HINE~ What look CA hinge Experience no can match SIGs 10 years ot development use Hinge Correct thickness achieve balance between strength durability flexibility ease assembly No holes slots weaken hinge Special surface treatment tor secure grip facing comes off hinge will come out Pacing Thin easy insert hinge Tr e s across whole hinge wood Processed retard CA cure time correct mistake just surface bonds ALL surface bonds MATERIALS ThAT REALLY WORK-EVERY TIME FOR LONG TIME Dont depend luck depend SIG EASY HINGES first still best name CA hinges SH-710 Pkg 24- S29b Materials Total Thickness Hinges rather ordinary item critical life model Dont save buck hinges crash buy use SIG EASY HINGES confidence SIG Easy Hinges DB D GP B C F GB ST Hinge ThicknessAAAABAB TearStrengthAAAABAB Surface Trtmont flImintin Strength Slots Holes Glue Action Wirkinn A A F n A F n B F F F n F F C4 F D D F F DelayedCureACCFFFF Average Grade 0 BC C0D SIG MFG CO INC 401-7 So Front St Montezuma IA 50171 515 623-5154 100 Model Aviation NGINES TRU-TURN now offers very finest versatile lightweight PROP HUBS turned solid barstock inside out true running hub new hub will mount motor standard TRU-TURN adapter kit big bird multi-bolt applications TRU-TURN has covered TRU-TURN also has PROP NUT will fit motor precision PROP NUTS come engine thread sizes two difterent shapes available stock Ask hobby dealer name tentZT PRECISION MODEL PRODUCTS Romco Manufacturing Inc QUALITY VERSATILITY GREAT LOOKS SAFETY PO Box 836 South Houston Texas 77587 713 / 943-1867