THE CLASS THAT BWLT AND FLEW Getting Right Andy Rodriguez takes turn throttle control U Wayne R Lehman pT modeler classroom sooner later youll see some action Heres story such occasion am fourth-grade teacher Locust Grove Mennonite School just east Lancaster Pennsylvania also build model airplanes March 1991 class studying people industries transportation social studies textbook next lesson Airplane Made explained groups people cooperate produce jet aircraft Boeings Seattle plant thought struck mehow about having class build airplane instead reading about jt As social studies teacher both sections fourth grade first decision whether should build Jonathan Reeser Andrea Ferich concentrate labors Bradley Stoltzfus busy carving models two dummy airliners passenger area plan plane built freewheeling props Note wing structure students two classrooms foreground has framed up February 1993 19 Left Detail showing location internal control components RC receiver under dummy cockpit floor lone servo controls models throttle airplane two Knowing young people take pride homerooms accomplishments decided go twoone class So began endeavor times seemed overwhelming end rewarding considered just what form craft should take wanted involve students much possible step needed something could rather crudely built yet fly forgiving characteristics control line model seemed appropriate cant expect 36 grade-schoolers able fly control line short notice So planned install throttle servo let kids play copilot via RC took charge ups downs handle thought worst could happen child suddenly cut throttle would landing next decision what model build wanted airliner least recognizable scale model Ideally should have manufactured 747 its configuration doesnt match building flying expectations leafed through Rolfe Dawydoffs Airplanes World several times kept returning 1930s French airliner called Dewoitine D 332 lines simple boxy look Best trimotor Since enginean OS 20a propeller nose would still scalelike would easy construct two freewheeler dummy props wings So set about drawing plans used typical dimensions 20-size ship keeping everything simple possible Ill pause mention Im including copy plans because want share cooperative building flying concept radio-assisted control line model rather aircraft itself suppose could design build around almost craft get off ground March 26 plans hand announced project classes say kids excited understatement next day formed work groups passed out cardboard templates baisa cutting boards single-edge razors Checking supply Band-Aids held breath started As expected wide range both ability razor working styles following days ribs being assembled group other teams busy working cockpit detail fashioning passenger seats carving dummy props sanding fuselage sides tail feathers Although French airliner never sported markings chose make liners Pan Am other Swissair detailed few guidelines kids painted airline colors Continued page 127 20 Model Aviation e Kids line up awaiting turn copilots After safety lesson took off full tilt authors project proved highlight school year wayne Lenman instigator school project two airliners built students 0S 20 engine swapped between two models flight sessions Joshua Smucker probable future pilot evening maiden flight classs Pan Am airliner model actually control liner Only throttle works RC Charles St info & directions call Dr Sandy Frank 817-599-7131 Sponsor WEATHERFORD AERO MODELING SOCIETY FL APR 3Fort Myers FL El 2nd Annual Swap Shop & Auction 900 am -400 pm 800 am Sellers Corkscrew Woodlands Esif 19 W off 75 Corkscrew Rd 1/4 M 75 Larger Hall Tables $10 Advance Reservations Definitely Recommended Admission $2 Paul Barfos 1002 Washington Ave Lehigh FL 33936 PH 813-368-0214 Sponsor SW FLORIDA AERO CLUB LISTING AD INFORMATION NORMAL LISTING AMA sanction issued event event will listed automatically Contest Calendar section listing will give date place name eventplus competition events flying site Contest Director name address Use Supplementary paid Ad space suggested description unusual special events deviations AMA rules significant aspects meet Paid ads may helpful promoting funfly-type meets give directions flying site SUPPLEMENTARY ADS Larger ads can inserted Contest Calendar section paying fee ads accepted AMA-sanctioned events FEE Fees based ad size whether sponsor AMAchartered club AD POLICY SIZE 1/s-in wide either /4 1/2 2/4-in high full size ad appears Contest Calendar section PRICING 3/4$8 1/2$16 2/4$24 time ad run payable advance AMA-chartered clubs pay half rate AD PREPARATION advertiser must prepare Supplementary Ad Ads must full size see above Ads made up dark black white background will reproduce well recommended ad made heavy paper lightweight cardboard PLEASE DO NOT USE PHOTOGRAPHS ON ADS SUBMITTAL DEADLINE effort will made include Supplementary Ads received 14th month issue reaching readers approximately fourth week following month However cannot guaranteed ads published space-available basis normally two-month lead time required inserting Supplementary Ad same deadline will apply sanctioned events listings Questions about either Supplementary Ads regular Sanctioned Events listings should directed Debbie Brown AMAs Competition Department Send ads AMA HO Attention Competition Dept Renew 93 Built FlewlLehman Continued page 20 tempera paints later covered engine area clear dope should also mention tops bottoms fuselages midwing sheeted areas covered classroom tablet backings As project neared completion put several hours covering wings installing hardware radio engine maiden flight Pan Am took place evening April 16 Uncertain outcome made arrangements student present Joshua Smucker young man likely become pilot accompanied full throttle airliner sluggish fresh spring grass did take off fly nicely Unfortunately covering wing began loosen after two laps bring down remarked handy have throttle control cases like too dark repairs second flight Joshua went out again three evenings later time went extremely well Joshua outside circle throttle did takeoffs touch-and-goes slow approaches Communication hand signal week later April 23 students built Pan Am took turns being copilot enjoyed immensely After safety lesson person took turn throttle control about five laps before handing transmitter next pilot Later transferred engine radio Swissair second class its session Both classes preferred high-speed flight after deliberating beauty slow planned approaches gentle flybys persisted flying full tilt Throughout sessions however no matter what kids did throttle planes handled well enriching enjoy able venture kids made sure knew highlight school year Its too bad well probably never know what effect experience futures youngsters Wouldnt neat least came across article 20 30 years now wrote letter editor her/Lehmberg Continued page 27 same altitudethough lot closer little up stick will drop tail increase sink releasing stick will give nice touchdown Like Feather Merchants 72-inch version has wide stall tolerance stalled still mushes along instead pitching down can exploit tight turns glide using some up elevator strong rudder Oh yesI almost forgot Dont think ailerons Feather Merchant want everyone builds Feather Merchant have ball would like picturemaybe have questions problems like drop line 21337 Oak Park Lane Anderson CA 96007 An SASE would appreciated remember reading somewhere closing seems appropriate See ya Chicken House yhear /doBolt Continued page 30 Im going break off discussion point remainder fairly lengthy Save portion continuity reference study concluding part Part Two will cover process developing force arrangements model get ultimate flight performance Ill also talk about trimming methods continued lectricslKopski Continued page 76 fancy wiring harness incorporating double-pole double-throw center-off DPDTCO DP on-off-on switch associated wiring also requires battery made up two half-packs having same cell count cell type idea behind scheme use two packs connected series high power same two packs connected parallel cruise power connection accomplished servo-driven switch described above Thus in-flight switching between two available voltage levelsand off wellis readily accomplished Andjust theres no misunderstanding cells arrangement charged senes Ni-Cds never charged parallel wiring diagram gives details actual use plane motor prop configured cruise climb slightly voltage available paralleled half-packs half voltage higher voltage associated cells series results relatively aggressive climb capability needed center-off switch option allows charge conservation during thermaling Since much total flight time likely occur cruise power levels battery efficiency during periods considerable interest argued parallel-connected half-packs afford increased efficiency since half nominally operating half total motor current Cells tend display somewhat higher capacity lower drain rates conversely somewhat lower capacity higher currents February 1993 127 II
Edition: Model Aviation - 1993/02
Page Numbers: 19, 20, 127
THE CLASS THAT BWLT AND FLEW Getting Right Andy Rodriguez takes turn throttle control U Wayne R Lehman pT modeler classroom sooner later youll see some action Heres story such occasion am fourth-grade teacher Locust Grove Mennonite School just east Lancaster Pennsylvania also build model airplanes March 1991 class studying people industries transportation social studies textbook next lesson Airplane Made explained groups people cooperate produce jet aircraft Boeings Seattle plant thought struck mehow about having class build airplane instead reading about jt As social studies teacher both sections fourth grade first decision whether should build Jonathan Reeser Andrea Ferich concentrate labors Bradley Stoltzfus busy carving models two dummy airliners passenger area plan plane built freewheeling props Note wing structure students two classrooms foreground has framed up February 1993 19 Left Detail showing location internal control components RC receiver under dummy cockpit floor lone servo controls models throttle airplane two Knowing young people take pride homerooms accomplishments decided go twoone class So began endeavor times seemed overwhelming end rewarding considered just what form craft should take wanted involve students much possible step needed something could rather crudely built yet fly forgiving characteristics control line model seemed appropriate cant expect 36 grade-schoolers able fly control line short notice So planned install throttle servo let kids play copilot via RC took charge ups downs handle thought worst could happen child suddenly cut throttle would landing next decision what model build wanted airliner least recognizable scale model Ideally should have manufactured 747 its configuration doesnt match building flying expectations leafed through Rolfe Dawydoffs Airplanes World several times kept returning 1930s French airliner called Dewoitine D 332 lines simple boxy look Best trimotor Since enginean OS 20a propeller nose would still scalelike would easy construct two freewheeler dummy props wings So set about drawing plans used typical dimensions 20-size ship keeping everything simple possible Ill pause mention Im including copy plans because want share cooperative building flying concept radio-assisted control line model rather aircraft itself suppose could design build around almost craft get off ground March 26 plans hand announced project classes say kids excited understatement next day formed work groups passed out cardboard templates baisa cutting boards single-edge razors Checking supply Band-Aids held breath started As expected wide range both ability razor working styles following days ribs being assembled group other teams busy working cockpit detail fashioning passenger seats carving dummy props sanding fuselage sides tail feathers Although French airliner never sported markings chose make liners Pan Am other Swissair detailed few guidelines kids painted airline colors Continued page 127 20 Model Aviation e Kids line up awaiting turn copilots After safety lesson took off full tilt authors project proved highlight school year wayne Lenman instigator school project two airliners built students 0S 20 engine swapped between two models flight sessions Joshua Smucker probable future pilot evening maiden flight classs Pan Am airliner model actually control liner Only throttle works RC Charles St info & directions call Dr Sandy Frank 817-599-7131 Sponsor WEATHERFORD AERO MODELING SOCIETY FL APR 3Fort Myers FL El 2nd Annual Swap Shop & Auction 900 am -400 pm 800 am Sellers Corkscrew Woodlands Esif 19 W off 75 Corkscrew Rd 1/4 M 75 Larger Hall Tables $10 Advance Reservations Definitely Recommended Admission $2 Paul Barfos 1002 Washington Ave Lehigh FL 33936 PH 813-368-0214 Sponsor SW FLORIDA AERO CLUB LISTING AD INFORMATION NORMAL LISTING AMA sanction issued event event will listed automatically Contest Calendar section listing will give date place name eventplus competition events flying site Contest Director name address Use Supplementary paid Ad space suggested description unusual special events deviations AMA rules significant aspects meet Paid ads may helpful promoting funfly-type meets give directions flying site SUPPLEMENTARY ADS Larger ads can inserted Contest Calendar section paying fee ads accepted AMA-sanctioned events FEE Fees based ad size whether sponsor AMAchartered club AD POLICY SIZE 1/s-in wide either /4 1/2 2/4-in high full size ad appears Contest Calendar section PRICING 3/4$8 1/2$16 2/4$24 time ad run payable advance AMA-chartered clubs pay half rate AD PREPARATION advertiser must prepare Supplementary Ad Ads must full size see above Ads made up dark black white background will reproduce well recommended ad made heavy paper lightweight cardboard PLEASE DO NOT USE PHOTOGRAPHS ON ADS SUBMITTAL DEADLINE effort will made include Supplementary Ads received 14th month issue reaching readers approximately fourth week following month However cannot guaranteed ads published space-available basis normally two-month lead time required inserting Supplementary Ad same deadline will apply sanctioned events listings Questions about either Supplementary Ads regular Sanctioned Events listings should directed Debbie Brown AMAs Competition Department Send ads AMA HO Attention Competition Dept Renew 93 Built FlewlLehman Continued page 20 tempera paints later covered engine area clear dope should also mention tops bottoms fuselages midwing sheeted areas covered classroom tablet backings As project neared completion put several hours covering wings installing hardware radio engine maiden flight Pan Am took place evening April 16 Uncertain outcome made arrangements student present Joshua Smucker young man likely become pilot accompanied full throttle airliner sluggish fresh spring grass did take off fly nicely Unfortunately covering wing began loosen after two laps bring down remarked handy have throttle control cases like too dark repairs second flight Joshua went out again three evenings later time went extremely well Joshua outside circle throttle did takeoffs touch-and-goes slow approaches Communication hand signal week later April 23 students built Pan Am took turns being copilot enjoyed immensely After safety lesson person took turn throttle control about five laps before handing transmitter next pilot Later transferred engine radio Swissair second class its session Both classes preferred high-speed flight after deliberating beauty slow planned approaches gentle flybys persisted flying full tilt Throughout sessions however no matter what kids did throttle planes handled well enriching enjoy able venture kids made sure knew highlight school year Its too bad well probably never know what effect experience futures youngsters Wouldnt neat least came across article 20 30 years now wrote letter editor her/Lehmberg Continued page 27 same altitudethough lot closer little up stick will drop tail increase sink releasing stick will give nice touchdown Like Feather Merchants 72-inch version has wide stall tolerance stalled still mushes along instead pitching down can exploit tight turns glide using some up elevator strong rudder Oh yesI almost forgot Dont think ailerons Feather Merchant want everyone builds Feather Merchant have ball would like picturemaybe have questions problems like drop line 21337 Oak Park Lane Anderson CA 96007 An SASE would appreciated remember reading somewhere closing seems appropriate See ya Chicken House yhear /doBolt Continued page 30 Im going break off discussion point remainder fairly lengthy Save portion continuity reference study concluding part Part Two will cover process developing force arrangements model get ultimate flight performance Ill also talk about trimming methods continued lectricslKopski Continued page 76 fancy wiring harness incorporating double-pole double-throw center-off DPDTCO DP on-off-on switch associated wiring also requires battery made up two half-packs having same cell count cell type idea behind scheme use two packs connected series high power same two packs connected parallel cruise power connection accomplished servo-driven switch described above Thus in-flight switching between two available voltage levelsand off wellis readily accomplished Andjust theres no misunderstanding cells arrangement charged senes Ni-Cds never charged parallel wiring diagram gives details actual use plane motor prop configured cruise climb slightly voltage available paralleled half-packs half voltage higher voltage associated cells series results relatively aggressive climb capability needed center-off switch option allows charge conservation during thermaling Since much total flight time likely occur cruise power levels battery efficiency during periods considerable interest argued parallel-connected half-packs afford increased efficiency since half nominally operating half total motor current Cells tend display somewhat higher capacity lower drain rates conversely somewhat lower capacity higher currents February 1993 127 II
Edition: Model Aviation - 1993/02
Page Numbers: 19, 20, 127
THE CLASS THAT BWLT AND FLEW Getting Right Andy Rodriguez takes turn throttle control U Wayne R Lehman pT modeler classroom sooner later youll see some action Heres story such occasion am fourth-grade teacher Locust Grove Mennonite School just east Lancaster Pennsylvania also build model airplanes March 1991 class studying people industries transportation social studies textbook next lesson Airplane Made explained groups people cooperate produce jet aircraft Boeings Seattle plant thought struck mehow about having class build airplane instead reading about jt As social studies teacher both sections fourth grade first decision whether should build Jonathan Reeser Andrea Ferich concentrate labors Bradley Stoltzfus busy carving models two dummy airliners passenger area plan plane built freewheeling props Note wing structure students two classrooms foreground has framed up February 1993 19 Left Detail showing location internal control components RC receiver under dummy cockpit floor lone servo controls models throttle airplane two Knowing young people take pride homerooms accomplishments decided go twoone class So began endeavor times seemed overwhelming end rewarding considered just what form craft should take wanted involve students much possible step needed something could rather crudely built yet fly forgiving characteristics control line model seemed appropriate cant expect 36 grade-schoolers able fly control line short notice So planned install throttle servo let kids play copilot via RC took charge ups downs handle thought worst could happen child suddenly cut throttle would landing next decision what model build wanted airliner least recognizable scale model Ideally should have manufactured 747 its configuration doesnt match building flying expectations leafed through Rolfe Dawydoffs Airplanes World several times kept returning 1930s French airliner called Dewoitine D 332 lines simple boxy look Best trimotor Since enginean OS 20a propeller nose would still scalelike would easy construct two freewheeler dummy props wings So set about drawing plans used typical dimensions 20-size ship keeping everything simple possible Ill pause mention Im including copy plans because want share cooperative building flying concept radio-assisted control line model rather aircraft itself suppose could design build around almost craft get off ground March 26 plans hand announced project classes say kids excited understatement next day formed work groups passed out cardboard templates baisa cutting boards single-edge razors Checking supply Band-Aids held breath started As expected wide range both ability razor working styles following days ribs being assembled group other teams busy working cockpit detail fashioning passenger seats carving dummy props sanding fuselage sides tail feathers Although French airliner never sported markings chose make liners Pan Am other Swissair detailed few guidelines kids painted airline colors Continued page 127 20 Model Aviation e Kids line up awaiting turn copilots After safety lesson took off full tilt authors project proved highlight school year wayne Lenman instigator school project two airliners built students 0S 20 engine swapped between two models flight sessions Joshua Smucker probable future pilot evening maiden flight classs Pan Am airliner model actually control liner Only throttle works RC Charles St info & directions call Dr Sandy Frank 817-599-7131 Sponsor WEATHERFORD AERO MODELING SOCIETY FL APR 3Fort Myers FL El 2nd Annual Swap Shop & Auction 900 am -400 pm 800 am Sellers Corkscrew Woodlands Esif 19 W off 75 Corkscrew Rd 1/4 M 75 Larger Hall Tables $10 Advance Reservations Definitely Recommended Admission $2 Paul Barfos 1002 Washington Ave Lehigh FL 33936 PH 813-368-0214 Sponsor SW FLORIDA AERO CLUB LISTING AD INFORMATION NORMAL LISTING AMA sanction issued event event will listed automatically Contest Calendar section listing will give date place name eventplus competition events flying site Contest Director name address Use Supplementary paid Ad space suggested description unusual special events deviations AMA rules significant aspects meet Paid ads may helpful promoting funfly-type meets give directions flying site SUPPLEMENTARY ADS Larger ads can inserted Contest Calendar section paying fee ads accepted AMA-sanctioned events FEE Fees based ad size whether sponsor AMAchartered club AD POLICY SIZE 1/s-in wide either /4 1/2 2/4-in high full size ad appears Contest Calendar section PRICING 3/4$8 1/2$16 2/4$24 time ad run payable advance AMA-chartered clubs pay half rate AD PREPARATION advertiser must prepare Supplementary Ad Ads must full size see above Ads made up dark black white background will reproduce well recommended ad made heavy paper lightweight cardboard PLEASE DO NOT USE PHOTOGRAPHS ON ADS SUBMITTAL DEADLINE effort will made include Supplementary Ads received 14th month issue reaching readers approximately fourth week following month However cannot guaranteed ads published space-available basis normally two-month lead time required inserting Supplementary Ad same deadline will apply sanctioned events listings Questions about either Supplementary Ads regular Sanctioned Events listings should directed Debbie Brown AMAs Competition Department Send ads AMA HO Attention Competition Dept Renew 93 Built FlewlLehman Continued page 20 tempera paints later covered engine area clear dope should also mention tops bottoms fuselages midwing sheeted areas covered classroom tablet backings As project neared completion put several hours covering wings installing hardware radio engine maiden flight Pan Am took place evening April 16 Uncertain outcome made arrangements student present Joshua Smucker young man likely become pilot accompanied full throttle airliner sluggish fresh spring grass did take off fly nicely Unfortunately covering wing began loosen after two laps bring down remarked handy have throttle control cases like too dark repairs second flight Joshua went out again three evenings later time went extremely well Joshua outside circle throttle did takeoffs touch-and-goes slow approaches Communication hand signal week later April 23 students built Pan Am took turns being copilot enjoyed immensely After safety lesson person took turn throttle control about five laps before handing transmitter next pilot Later transferred engine radio Swissair second class its session Both classes preferred high-speed flight after deliberating beauty slow planned approaches gentle flybys persisted flying full tilt Throughout sessions however no matter what kids did throttle planes handled well enriching enjoy able venture kids made sure knew highlight school year Its too bad well probably never know what effect experience futures youngsters Wouldnt neat least came across article 20 30 years now wrote letter editor her/Lehmberg Continued page 27 same altitudethough lot closer little up stick will drop tail increase sink releasing stick will give nice touchdown Like Feather Merchants 72-inch version has wide stall tolerance stalled still mushes along instead pitching down can exploit tight turns glide using some up elevator strong rudder Oh yesI almost forgot Dont think ailerons Feather Merchant want everyone builds Feather Merchant have ball would like picturemaybe have questions problems like drop line 21337 Oak Park Lane Anderson CA 96007 An SASE would appreciated remember reading somewhere closing seems appropriate See ya Chicken House yhear /doBolt Continued page 30 Im going break off discussion point remainder fairly lengthy Save portion continuity reference study concluding part Part Two will cover process developing force arrangements model get ultimate flight performance Ill also talk about trimming methods continued lectricslKopski Continued page 76 fancy wiring harness incorporating double-pole double-throw center-off DPDTCO DP on-off-on switch associated wiring also requires battery made up two half-packs having same cell count cell type idea behind scheme use two packs connected series high power same two packs connected parallel cruise power connection accomplished servo-driven switch described above Thus in-flight switching between two available voltage levelsand off wellis readily accomplished Andjust theres no misunderstanding cells arrangement charged senes Ni-Cds never charged parallel wiring diagram gives details actual use plane motor prop configured cruise climb slightly voltage available paralleled half-packs half voltage higher voltage associated cells series results relatively aggressive climb capability needed center-off switch option allows charge conservation during thermaling Since much total flight time likely occur cruise power levels battery efficiency during periods considerable interest argued parallel-connected half-packs afford increased efficiency since half nominally operating half total motor current Cells tend display somewhat higher capacity lower drain rates conversely somewhat lower capacity higher currents February 1993 127 II