RADIO CONTROL HELICOPTERS U F1II SERVO CONTROL EFFECTIVENESS have radio control hobby years will remember early proportional servosthe ones linear push-pull output time thought linear output desirable because closely matched transmitter stick position mechanics involved caused servo both large heavy linear-output servos available few years until radio manufacturers settled rotaryoutput servos now have Aside history lesson real purpose story show linear servo output desirable rotary output now have realized years ago next thought comes mind may What wrong rotary output servos have using years great success answer nothing really wrong rotary output except servo loses its effectiveness arm wheel rotates away center position demonstrate refer Figure 1 shows servo wheel pushrod attached point will move pushrod right left horizontal direction several statements can make about point 1 pushrod perpendicular radius servo wheel 2 pushrod tangent servo wheel 3 servo effective position Now lets take look same servo wheel pushrod wheel rotated 900 clockwise point B As servo rotates slightly about point B can seen pushrod will move up down will have virtually no movement right left servo has therefore gone position being very able move pushrod right left point position ineffectiveness point B real problem rotary outputit becomes less less effective moving pushrod servo moves off its neutral center position can also calculate effectiveness servo wheel moves its neutral position using trigonometry specifically sine function sine 900 point 1 100% effective sine 00 0 point B Most radios designed full-stick deflection transmitter will move servo about 450 point C sine 450 707 means servo wheel about 70% effective moving pushrod horizontal direction extreme position beginning sound very academic points circle talk trigonometry What does have flying control helicopter information presented far can show following about rotary output servo 1 amount pushrod movement proportional amount transmitter-stick deflection move stick away its center position less effective servo wheel moving pushrod 2 Increasing servo travel beyond 450 point puts us position servo effectiveness rapidly decreases 450 servo position normally around 100% servo travel computer radio although newer radios enable increase throw up 150% very ineffective position 3 servo travel increased sensitive midstick position becomes can make collective very sensitive hovering midstick rotary-output servo problems have known years weve just put up took Model Products Corp Box 100 Allamuchy NJ 07820 design Line Drive servo attachment solve problem As shown photo Line Drive mounted output wheel Futaba 9201 servo will mount same way wheel used control elevator X-Cell Notice tube top wheel holds pushrod wire tube fits slot Line Drive tube held place 40-pound-test stainless-steel wire wire goes end tube around Line Drive center other end tube pushrod wire held place collars either end tube As servo wheel rotates wire pulls holds tube pushrod tightly against outer portion Line Drive has following advantages 1 tube therefore Servo effective pushrod reduced effectiveness C ineffective point B 108 Model Aviation * F C 45 I-F figure 1 Optical Helicopter Tachometer provides accurate readout helicopters inflight rotor speed Thunder Tiger 46 has two-needle carburetor interchangeable needles help fine-tune engines midrange pushrod always tangent wheel turns response control stick movements get same control response stick extremes center stick position 2 control sensitivity therefore same throughout transmitter stick servo range 3 friction caused cable very low amount 4 zero backlash am using Line Drives elevator collective X-Cell Custom right now although dont see earth shaking improvement feel some distinct advantages elevator has softer neutral improved hovering retains full swashplate throw aerobatics Also collective almost completely linear comparison movement collective stick say almost because pushrod drives rocking aileron servo rocking reduces linear effect However collective again softer around midstick position still retaining full throw has especially noticeable during autorotations Line Drive has improved throw servo its extreme positionthis does provide collective touchdown makes positive input New Products 22nd Century Aero Products 2763 West Ave L Suite 295 Lancaster CA 93536 producing new Advanced Aero Fueler use glow fuel gasoline Until Aero Fueler much thought given fueling defueling helicopters airplanes us developed own methods getting job donetrying keep fuel fresh week week keeping spilling car has changed now have using Advanced Aero Fueler past several months problems associated fuel have gone away Advanced Aero Fueler has airtight fuel cap system color-coded locking quick-disconnects highest-quality coiled fuel tubing 4 NORTHEAST AERODYNAMICS INCM THE FINEST KITS YOULL EVER BUILD AM FLY largest high wing trainer its class SpecificationsSpecifications Engine Requirementnon schncude.40 Engine Requirementnon schneurle 40 wing Span58 Wing Span58 wing Area625 sq 434 sq ft Wing Area 5 sq 434 sq ft Fuselage Length42 Fuselage Length42 Fuselage Width 35 overall Fuselage Width35 overall Weight Range 5 5 lhs Weight Range45 5 lhs Wing Loading Range oc/sq ft Wing Loading Range 18 ozisq ft Radio Functions annel Radio Functions annel Specifications Engine Requirementany 60 Wing Span52 Wing Area935 sq Fuselage Length46 Fuselage Width35 Weight Range6 75 lhs Wing Loading Range148 185 specifications Engine Requirement2 non schneurle 20 Wing Span58 Wing Area625 sq 434 sq ft Fuselage Length43 Fuselage Width35 overall Weight Range55 65 lhs Wing Loading Range195 239 ozisq ft Radio Functions4 channel Ask kits favorite hobby store order direct MC/ VISA welcome. 150 Robinson Road on NH 03051 881-5899 March 1996 109 Model Products Corporations Line Drive provides true pushpull output remaining tangent servo wheel Advanced Aero Fueler combines deluxe tubing quickdisconnect fittings improve fueling defueling process TRAIN-AIR 40SPORT-AIR 40 An outstanding sport fun-fly ship BEL-AIR 60TWIN-AIR 20 Quick building easy Full aerobatic cap abilities handling superior ease ying ur aerobatic biplanepopular Twin-Air 20 really can fly engine tie NEW BIU 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-oft stability gives ability self-recover attitude super slow stall speed I Seeing Believing 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 $10 including shipping features will keep fuel fresh long want system mounts easily fuel bottle can Although wont help autorotation time crisis will make everyday flying just little enjoyable Optical Heli Tachometer Miniature Aircraft 3743 Silver Star Rd Orlando FL 32808 small easy-touse hand-held electronic tachometer measures helicopters rotor speed during flight can see rotorblades hover middle loop can accurately determine rotor speed Simply look helicopter through viewfinder press toggle switch until rotor blades appear stationary rotor speed will appear digital readout Slower rotor speeds suitable hoveringnow novice FAJ flier can make accurate rotor-speed changes suit wind conditions like maximize performance helicopter much rotor speed really needed high rotor speed certainly desirable aerobatics point small increase rotor speed does improve helicopters performance could cook engine lean run Optical Heli Tachometer can better evaluate rotorblade rsarfnaesss send es,arut rotor speed 1to overall in-flight helicopter performance Thunder Tiger USA 2430 Lacy Ln #120 Dallas TX 75006 importing new Thunder Tiger 46 helicopter engine Although am engine expert appears state-ofthe-art designed bring maximum performance reliability helicopter models. black-and-white photo does engine justiceits blue anodized head workmanship outstanding head new design provide maximum cooling improved performance AAC piston sleeve carburetor appears standard two-needle type highand low-mixture needle valves reality three idle needle valves provided engine help fine-tune midrange mixture standard two-needle carbs can adjust mixture high low ends midrange often hard impossible get just right Thunder Tiger has gone long way simplify midrange fine-tuning interchangeable needle valves dont perform engine rpm power tests others magazine Im anxious see numbers Thunder Tiger may just new bad boy block 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Bee Accepts 25 45 2-cycle Electric 45 70 4-Cycle Super Low wing Loading 78 112 ozlsq fit BIG wing Area Over Sq Ft Std 60 wing 10 Sq Pt 72 Estended wingf Optional Removable Tail Easy Transport Optional Bolt-on wing Kit includes computer drawn plans covering patterns detailed Pre-cut Balsa Plywood oartnlihar stainless steel windows LAL Kit -$54 Extended Wing 48 wina Kit $60 Kit $24 Prices include Priority Mail shipping Convert Iron plate 2 minuteal improved Lazy Bee kits feature New computer drawn plans expanded instruction soot optional soil-on wing & removable tail quick sccess batteiy door electric flyers recom mend 40 version moot glow engines aerobatics sod 48 estended wing training gliding four-cycle engines electric power New! [lectrification ombination Only $119For Quick Service Call 1555 usischan5er Ounneaaelecnncconnbo vucktonhedO Lath Bwnus teaCLANCY AVIATION need tosnlsiuvedllvinv eleettic Ii includes altaslenAitsctew co5eandtiue mono,602 4i1 534219w 2nd AVE dsitoFlnld2ntnnictosveedconlrol7oellsanvotudtnaheunetvvuck[v32][b1637298782125430]] 5 un nov pm M5T M-F MESA AZ 85210-1317 top HiTte veuk detects quite chatiet evetent gveoOeeciOng ntinuleo cntsii cuno ucoo cnones accEPTED 01 lull ittonle loops rolls nammetlneads etc Onset ligni teluoud & For note flu send Ion new canalog nee curaim ainh itnonled back Oteatlot bat liv ng tool Deems belinuing n aideol Dunchase SLL PRicEs INCLODE 5HIPPINO InSist TidE 05 110 Model Aviation D BETTER BIPES BUILD BETTER MONOPLANES New 1996 100 Pages 800 Photographs Only $1995 Direct Sales Please Add $3 Shipping HARRY B HIGLEY & SONS INC P 0 BOX 532 GLENWOOD IL 60425 El UU way have bard time reading tiny print resily should get Lazy Bee easy saul TH OX R[ADY-TO-FLY LAZY BU Just shake ii out box go flyingl huge wing Standard 40 makes ideal beginners Experts will enjoy respon sive oversized control surfaces 040 powered 30 span radio $109 FREE SHIPPING IN US OR 2 channel 27 MHz 2-stick radio S179 SHIPPING IN US
Edition: Model Aviation - 1996/03
Page Numbers: 108, 109, 110
Edition: Model Aviation - 1996/03
Page Numbers: 108, 109, 110
RADIO CONTROL HELICOPTERS U F1II SERVO CONTROL EFFECTIVENESS have radio control hobby years will remember early proportional servosthe ones linear push-pull output time thought linear output desirable because closely matched transmitter stick position mechanics involved caused servo both large heavy linear-output servos available few years until radio manufacturers settled rotaryoutput servos now have Aside history lesson real purpose story show linear servo output desirable rotary output now have realized years ago next thought comes mind may What wrong rotary output servos have using years great success answer nothing really wrong rotary output except servo loses its effectiveness arm wheel rotates away center position demonstrate refer Figure 1 shows servo wheel pushrod attached point will move pushrod right left horizontal direction several statements can make about point 1 pushrod perpendicular radius servo wheel 2 pushrod tangent servo wheel 3 servo effective position Now lets take look same servo wheel pushrod wheel rotated 900 clockwise point B As servo rotates slightly about point B can seen pushrod will move up down will have virtually no movement right left servo has therefore gone position being very able move pushrod right left point position ineffectiveness point B real problem rotary outputit becomes less less effective moving pushrod servo moves off its neutral center position can also calculate effectiveness servo wheel moves its neutral position using trigonometry specifically sine function sine 900 point 1 100% effective sine 00 0 point B Most radios designed full-stick deflection transmitter will move servo about 450 point C sine 450 707 means servo wheel about 70% effective moving pushrod horizontal direction extreme position beginning sound very academic points circle talk trigonometry What does have flying control helicopter information presented far can show following about rotary output servo 1 amount pushrod movement proportional amount transmitter-stick deflection move stick away its center position less effective servo wheel moving pushrod 2 Increasing servo travel beyond 450 point puts us position servo effectiveness rapidly decreases 450 servo position normally around 100% servo travel computer radio although newer radios enable increase throw up 150% very ineffective position 3 servo travel increased sensitive midstick position becomes can make collective very sensitive hovering midstick rotary-output servo problems have known years weve just put up took Model Products Corp Box 100 Allamuchy NJ 07820 design Line Drive servo attachment solve problem As shown photo Line Drive mounted output wheel Futaba 9201 servo will mount same way wheel used control elevator X-Cell Notice tube top wheel holds pushrod wire tube fits slot Line Drive tube held place 40-pound-test stainless-steel wire wire goes end tube around Line Drive center other end tube pushrod wire held place collars either end tube As servo wheel rotates wire pulls holds tube pushrod tightly against outer portion Line Drive has following advantages 1 tube therefore Servo effective pushrod reduced effectiveness C ineffective point B 108 Model Aviation * F C 45 I-F figure 1 Optical Helicopter Tachometer provides accurate readout helicopters inflight rotor speed Thunder Tiger 46 has two-needle carburetor interchangeable needles help fine-tune engines midrange pushrod always tangent wheel turns response control stick movements get same control response stick extremes center stick position 2 control sensitivity therefore same throughout transmitter stick servo range 3 friction caused cable very low amount 4 zero backlash am using Line Drives elevator collective X-Cell Custom right now although dont see earth shaking improvement feel some distinct advantages elevator has softer neutral improved hovering retains full swashplate throw aerobatics Also collective almost completely linear comparison movement collective stick say almost because pushrod drives rocking aileron servo rocking reduces linear effect However collective again softer around midstick position still retaining full throw has especially noticeable during autorotations Line Drive has improved throw servo its extreme positionthis does provide collective touchdown makes positive input New Products 22nd Century Aero Products 2763 West Ave L Suite 295 Lancaster CA 93536 producing new Advanced Aero Fueler use glow fuel gasoline Until Aero Fueler much thought given fueling defueling helicopters airplanes us developed own methods getting job donetrying keep fuel fresh week week keeping spilling car has changed now have using Advanced Aero Fueler past several months problems associated fuel have gone away Advanced Aero Fueler has airtight fuel cap system color-coded locking quick-disconnects highest-quality coiled fuel tubing 4 NORTHEAST AERODYNAMICS INCM THE FINEST KITS YOULL EVER BUILD AM FLY largest high wing trainer its class SpecificationsSpecifications Engine Requirementnon schncude.40 Engine Requirementnon schneurle 40 wing Span58 Wing Span58 wing Area625 sq 434 sq ft Wing Area 5 sq 434 sq ft Fuselage Length42 Fuselage Length42 Fuselage Width 35 overall Fuselage Width35 overall Weight Range 5 5 lhs Weight Range45 5 lhs Wing Loading Range oc/sq ft Wing Loading Range 18 ozisq ft Radio Functions annel Radio Functions annel Specifications Engine Requirementany 60 Wing Span52 Wing Area935 sq Fuselage Length46 Fuselage Width35 Weight Range6 75 lhs Wing Loading Range148 185 specifications Engine Requirement2 non schneurle 20 Wing Span58 Wing Area625 sq 434 sq ft Fuselage Length43 Fuselage Width35 overall Weight Range55 65 lhs Wing Loading Range195 239 ozisq ft Radio Functions4 channel Ask kits favorite hobby store order direct MC/ VISA welcome. 150 Robinson Road on NH 03051 881-5899 March 1996 109 Model Products Corporations Line Drive provides true pushpull output remaining tangent servo wheel Advanced Aero Fueler combines deluxe tubing quickdisconnect fittings improve fueling defueling process TRAIN-AIR 40SPORT-AIR 40 An outstanding sport fun-fly ship BEL-AIR 60TWIN-AIR 20 Quick building easy Full aerobatic cap abilities handling superior ease ying ur aerobatic biplanepopular Twin-Air 20 really can fly engine tie NEW BIU 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-oft stability gives ability self-recover attitude super slow stall speed I Seeing Believing 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 $10 including shipping features will keep fuel fresh long want system mounts easily fuel bottle can Although wont help autorotation time crisis will make everyday flying just little enjoyable Optical Heli Tachometer Miniature Aircraft 3743 Silver Star Rd Orlando FL 32808 small easy-touse hand-held electronic tachometer measures helicopters rotor speed during flight can see rotorblades hover middle loop can accurately determine rotor speed Simply look helicopter through viewfinder press toggle switch until rotor blades appear stationary rotor speed will appear digital readout Slower rotor speeds suitable hoveringnow novice FAJ flier can make accurate rotor-speed changes suit wind conditions like maximize performance helicopter much rotor speed really needed high rotor speed certainly desirable aerobatics point small increase rotor speed does improve helicopters performance could cook engine lean run Optical Heli Tachometer can better evaluate rotorblade rsarfnaesss send es,arut rotor speed 1to overall in-flight helicopter performance Thunder Tiger USA 2430 Lacy Ln #120 Dallas TX 75006 importing new Thunder Tiger 46 helicopter engine Although am engine expert appears state-ofthe-art designed bring maximum performance reliability helicopter models. black-and-white photo does engine justiceits blue anodized head workmanship outstanding head new design provide maximum cooling improved performance AAC piston sleeve carburetor appears standard two-needle type highand low-mixture needle valves reality three idle needle valves provided engine help fine-tune midrange mixture standard two-needle carbs can adjust mixture high low ends midrange often hard impossible get just right Thunder Tiger has gone long way simplify midrange fine-tuning interchangeable needle valves dont perform engine rpm power tests others magazine Im anxious see numbers Thunder Tiger may just new bad boy block 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Bee Accepts 25 45 2-cycle Electric 45 70 4-Cycle Super Low wing Loading 78 112 ozlsq fit BIG wing Area Over Sq Ft Std 60 wing 10 Sq Pt 72 Estended wingf Optional Removable Tail Easy Transport Optional Bolt-on wing Kit includes computer drawn plans covering patterns detailed Pre-cut Balsa Plywood oartnlihar stainless steel windows LAL Kit -$54 Extended Wing 48 wina Kit $60 Kit $24 Prices include Priority Mail shipping Convert Iron plate 2 minuteal improved Lazy Bee kits feature New computer drawn plans expanded instruction soot optional soil-on wing & removable tail quick sccess batteiy door electric flyers recom mend 40 version moot glow engines aerobatics sod 48 estended wing training gliding four-cycle engines electric power New! [lectrification ombination Only $119For Quick Service Call 1555 usischan5er Ounneaaelecnncconnbo vucktonhedO Lath Bwnus teaCLANCY AVIATION need tosnlsiuvedllvinv eleettic Ii includes altaslenAitsctew co5eandtiue mono,602 4i1 534219w 2nd AVE dsitoFlnld2ntnnictosveedconlrol7oellsanvotudtnaheunetvvuck[v32][b1637298782125430]] 5 un nov pm M5T M-F MESA AZ 85210-1317 top HiTte veuk detects quite chatiet evetent gveoOeeciOng ntinuleo cntsii cuno ucoo cnones accEPTED 01 lull ittonle loops rolls nammetlneads etc Onset ligni teluoud & For note flu send Ion new canalog nee curaim ainh itnonled back Oteatlot bat liv ng tool Deems belinuing n aideol Dunchase SLL PRicEs INCLODE 5HIPPINO InSist TidE 05 110 Model Aviation D BETTER BIPES BUILD BETTER MONOPLANES New 1996 100 Pages 800 Photographs Only $1995 Direct Sales Please Add $3 Shipping HARRY B HIGLEY & SONS INC P 0 BOX 532 GLENWOOD IL 60425 El UU way have bard time reading tiny print resily should get Lazy Bee easy saul TH OX R[ADY-TO-FLY LAZY BU Just shake ii out box go flyingl huge wing Standard 40 makes ideal beginners Experts will enjoy respon sive oversized control surfaces 040 powered 30 span radio $109 FREE SHIPPING IN US OR 2 channel 27 MHz 2-stick radio S179 SHIPPING IN US
Edition: Model Aviation - 1996/03
Page Numbers: 108, 109, 110
RADIO CONTROL HELICOPTERS U F1II SERVO CONTROL EFFECTIVENESS have radio control hobby years will remember early proportional servosthe ones linear push-pull output time thought linear output desirable because closely matched transmitter stick position mechanics involved caused servo both large heavy linear-output servos available few years until radio manufacturers settled rotaryoutput servos now have Aside history lesson real purpose story show linear servo output desirable rotary output now have realized years ago next thought comes mind may What wrong rotary output servos have using years great success answer nothing really wrong rotary output except servo loses its effectiveness arm wheel rotates away center position demonstrate refer Figure 1 shows servo wheel pushrod attached point will move pushrod right left horizontal direction several statements can make about point 1 pushrod perpendicular radius servo wheel 2 pushrod tangent servo wheel 3 servo effective position Now lets take look same servo wheel pushrod wheel rotated 900 clockwise point B As servo rotates slightly about point B can seen pushrod will move up down will have virtually no movement right left servo has therefore gone position being very able move pushrod right left point position ineffectiveness point B real problem rotary outputit becomes less less effective moving pushrod servo moves off its neutral center position can also calculate effectiveness servo wheel moves its neutral position using trigonometry specifically sine function sine 900 point 1 100% effective sine 00 0 point B Most radios designed full-stick deflection transmitter will move servo about 450 point C sine 450 707 means servo wheel about 70% effective moving pushrod horizontal direction extreme position beginning sound very academic points circle talk trigonometry What does have flying control helicopter information presented far can show following about rotary output servo 1 amount pushrod movement proportional amount transmitter-stick deflection move stick away its center position less effective servo wheel moving pushrod 2 Increasing servo travel beyond 450 point puts us position servo effectiveness rapidly decreases 450 servo position normally around 100% servo travel computer radio although newer radios enable increase throw up 150% very ineffective position 3 servo travel increased sensitive midstick position becomes can make collective very sensitive hovering midstick rotary-output servo problems have known years weve just put up took Model Products Corp Box 100 Allamuchy NJ 07820 design Line Drive servo attachment solve problem As shown photo Line Drive mounted output wheel Futaba 9201 servo will mount same way wheel used control elevator X-Cell Notice tube top wheel holds pushrod wire tube fits slot Line Drive tube held place 40-pound-test stainless-steel wire wire goes end tube around Line Drive center other end tube pushrod wire held place collars either end tube As servo wheel rotates wire pulls holds tube pushrod tightly against outer portion Line Drive has following advantages 1 tube therefore Servo effective pushrod reduced effectiveness C ineffective point B 108 Model Aviation * F C 45 I-F figure 1 Optical Helicopter Tachometer provides accurate readout helicopters inflight rotor speed Thunder Tiger 46 has two-needle carburetor interchangeable needles help fine-tune engines midrange pushrod always tangent wheel turns response control stick movements get same control response stick extremes center stick position 2 control sensitivity therefore same throughout transmitter stick servo range 3 friction caused cable very low amount 4 zero backlash am using Line Drives elevator collective X-Cell Custom right now although dont see earth shaking improvement feel some distinct advantages elevator has softer neutral improved hovering retains full swashplate throw aerobatics Also collective almost completely linear comparison movement collective stick say almost because pushrod drives rocking aileron servo rocking reduces linear effect However collective again softer around midstick position still retaining full throw has especially noticeable during autorotations Line Drive has improved throw servo its extreme positionthis does provide collective touchdown makes positive input New Products 22nd Century Aero Products 2763 West Ave L Suite 295 Lancaster CA 93536 producing new Advanced Aero Fueler use glow fuel gasoline Until Aero Fueler much thought given fueling defueling helicopters airplanes us developed own methods getting job donetrying keep fuel fresh week week keeping spilling car has changed now have using Advanced Aero Fueler past several months problems associated fuel have gone away Advanced Aero Fueler has airtight fuel cap system color-coded locking quick-disconnects highest-quality coiled fuel tubing 4 NORTHEAST AERODYNAMICS INCM THE FINEST KITS YOULL EVER BUILD AM FLY largest high wing trainer its class SpecificationsSpecifications Engine Requirementnon schncude.40 Engine Requirementnon schneurle 40 wing Span58 Wing Span58 wing Area625 sq 434 sq ft Wing Area 5 sq 434 sq ft Fuselage Length42 Fuselage Length42 Fuselage Width 35 overall Fuselage Width35 overall Weight Range 5 5 lhs Weight Range45 5 lhs Wing Loading Range oc/sq ft Wing Loading Range 18 ozisq ft Radio Functions annel Radio Functions annel Specifications Engine Requirementany 60 Wing Span52 Wing Area935 sq Fuselage Length46 Fuselage Width35 Weight Range6 75 lhs Wing Loading Range148 185 specifications Engine Requirement2 non schneurle 20 Wing Span58 Wing Area625 sq 434 sq ft Fuselage Length43 Fuselage Width35 overall Weight Range55 65 lhs Wing Loading Range195 239 ozisq ft Radio Functions4 channel Ask kits favorite hobby store order direct MC/ VISA welcome. 150 Robinson Road on NH 03051 881-5899 March 1996 109 Model Products Corporations Line Drive provides true pushpull output remaining tangent servo wheel Advanced Aero Fueler combines deluxe tubing quickdisconnect fittings improve fueling defueling process TRAIN-AIR 40SPORT-AIR 40 An outstanding sport fun-fly ship BEL-AIR 60TWIN-AIR 20 Quick building easy Full aerobatic cap abilities handling superior ease ying ur aerobatic biplanepopular Twin-Air 20 really can fly engine tie NEW BIU 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-oft stability gives ability self-recover attitude super slow stall speed I Seeing Believing 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 $10 including shipping features will keep fuel fresh long want system mounts easily fuel bottle can Although wont help autorotation time crisis will make everyday flying just little enjoyable Optical Heli Tachometer Miniature Aircraft 3743 Silver Star Rd Orlando FL 32808 small easy-touse hand-held electronic tachometer measures helicopters rotor speed during flight can see rotorblades hover middle loop can accurately determine rotor speed Simply look helicopter through viewfinder press toggle switch until rotor blades appear stationary rotor speed will appear digital readout Slower rotor speeds suitable hoveringnow novice FAJ flier can make accurate rotor-speed changes suit wind conditions like maximize performance helicopter much rotor speed really needed high rotor speed certainly desirable aerobatics point small increase rotor speed does improve helicopters performance could cook engine lean run Optical Heli Tachometer can better evaluate rotorblade rsarfnaesss send es,arut rotor speed 1to overall in-flight helicopter performance Thunder Tiger USA 2430 Lacy Ln #120 Dallas TX 75006 importing new Thunder Tiger 46 helicopter engine Although am engine expert appears state-ofthe-art designed bring maximum performance reliability helicopter models. black-and-white photo does engine justiceits blue anodized head workmanship outstanding head new design provide maximum cooling improved performance AAC piston sleeve carburetor appears standard two-needle type highand low-mixture needle valves reality three idle needle valves provided engine help fine-tune midrange mixture standard two-needle carbs can adjust mixture high low ends midrange often hard impossible get just right Thunder Tiger has gone long way simplify midrange fine-tuning interchangeable needle valves dont perform engine rpm power tests others magazine Im anxious see numbers Thunder Tiger may just new bad boy block 60 WING72 WING 41094119 FREE SHIPPING INSIDE USA Big Plane can Fly Small Places Flys Just Like Original Lazy Bee Accepts 25 45 2-cycle Electric 45 70 4-Cycle Super Low wing Loading 78 112 ozlsq fit BIG wing Area Over Sq Ft Std 60 wing 10 Sq Pt 72 Estended wingf Optional Removable Tail Easy Transport Optional Bolt-on wing Kit includes computer drawn plans covering patterns detailed Pre-cut Balsa Plywood oartnlihar stainless steel windows LAL Kit -$54 Extended Wing 48 wina Kit $60 Kit $24 Prices include Priority Mail shipping Convert Iron plate 2 minuteal improved Lazy Bee kits feature New computer drawn plans expanded instruction soot optional soil-on wing & removable tail quick sccess batteiy door electric flyers recom mend 40 version moot glow engines aerobatics sod 48 estended wing training gliding four-cycle engines electric power New! [lectrification ombination Only $119For Quick Service Call 1555 usischan5er Ounneaaelecnncconnbo vucktonhedO Lath Bwnus teaCLANCY AVIATION need tosnlsiuvedllvinv eleettic Ii includes altaslenAitsctew co5eandtiue mono,602 4i1 534219w 2nd AVE dsitoFlnld2ntnnictosveedconlrol7oellsanvotudtnaheunetvvuck[v32][b1637298782125430]] 5 un nov pm M5T M-F MESA AZ 85210-1317 top HiTte veuk detects quite chatiet evetent gveoOeeciOng ntinuleo cntsii cuno ucoo cnones accEPTED 01 lull ittonle loops rolls nammetlneads etc Onset ligni teluoud & For note flu send Ion new canalog nee curaim ainh itnonled back Oteatlot bat liv ng tool Deems belinuing n aideol Dunchase SLL PRicEs INCLODE 5HIPPINO InSist TidE 05 110 Model Aviation D BETTER BIPES BUILD BETTER MONOPLANES New 1996 100 Pages 800 Photographs Only $1995 Direct Sales Please Add $3 Shipping HARRY B HIGLEY & SONS INC P 0 BOX 532 GLENWOOD IL 60425 El UU way have bard time reading tiny print resily should get Lazy Bee easy saul TH OX R[ADY-TO-FLY LAZY BU Just shake ii out box go flyingl huge wing Standard 40 makes ideal beginners Experts will enjoy respon sive oversized control surfaces 040 powered 30 span radio $109 FREE SHIPPING IN US OR 2 channel 27 MHz 2-stick radio S179 SHIPPING IN US
