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Freshman II

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

Author: D. Dahlke


Edition: Model Aviation - 1997/08
Page Numbers: 40, 41, 43, 44, 45, 46

In 1949 Woodworking Division Testors Corpd] in( Rockford Illinois produced outstanding progressive series Control Line models 049 099 19 29 size engines Dick McCoys power plants being engines choice immortal Freshman entry level basic trainer offspring earlier TC-2 Sophomore advanced trainer Junior stunt trainer Top line Seniora serious nonflapped contest Stunt machine quartet Frosh far outsold its siblings marginally attentive modeler could chew gum hack balsa same time assured too could fly CL see original Freshmen still flying can spot early versions wire tafiskid belicrank inboard wingtip Later models used subrudder conventional belicrank location Today stylish impatience try use As war-weary Combat models trainers Both somewhere between lousy miserable role reason build trainer trained love /2As trainers aint As idea using Combat models slowed down big props backward props half-plugged venturis etc trainers word trainer speeds wobble flop about like nothing much over-grown Small tails designed make l00mph speeds livable become distinctly unhappy such low speeds hotrod engines tend balk simply stop despair over such treatment approached Model Aviation about doing serious trainer article ie Freshman revisited requested update Easier said done mean improve Model II II approach study earlier versions such TC-2 Freshman model has thicker airfoil slightly longer moment arms increased elevator area etc Hopefully will reflect deserved credit Mr Bast designed original wont find steadier flier limbo events balloon bust would probably win demolitionderby trials CONSTRUCTION 10 pieces wood less cut out some wire bending can 1 small easy stuff first major things last trick getting far along have few pieces left cant quit 2 major stuff first enthusiasm energy high can say yourself Ive already done worst might well finish up now So pick favorite method lets get Fm-Rudder Trace out pattern subradder transfer piece 1/ Lite Ply After sanding shape drill hole epoxy brass eyelet Epoxy wire edging shown using either high tech paperclip music wire Use light balsa fin-radder lightest can find dorsal Note grain direction Airfoil aft half fin shown radius leading edge Stab/Elevator Trace cut out stab elevator light 3/i6 balsa Radius edges stab leading edge elevator trailing edge should tapered Install nylon elevator Z hinges slightly improved aerodynamics learning good habits double number elevator hinges shown plans 40 Model Aviation ctively seals hingeline used inch Goldberg nylon reinforcing tape because nylon doesnt rot really flaw Z hinges Another approach laminate three pieces A6 stab elevator making center layer harder balsa two outer sheets softer stuff careful weight Glue choices might Sig-Bond Ambroidnot epoxy Regular pin/nylon hinges will work fine Fuselage Spend some time chasing around local lumber yards decent piece basswood x 30 inches White pine could substituted weight does exceed provided figures Once bottom fuselage squared off find heavy end wood Carefully draw fine line 15-inch mark balance fuselageto-be knife edge heavy end front Trace fuselage outhne wood cut out Slot bottom insertion subrudder Trace cut out engine mount unit e Notch front fit engine plan use drill engine bolt holes Radius corners mount unit otherwise paint wont stick well sharp edges promote chipping Use sharp small carpenters plane airfoil rear lage starting trailing edge wing Gently curve inboard portion fuselage leave outboard surface flat fuselage should about 1/ thick aftmost point important get rid excess weight model will tailheavy will fly well leave out step Sand/radius parts fuselage except will glue joint top balsa portion fuselage use same procedure did bottom Dont forget notch fuselage stab fits Wing Mike Pratt Sig Riley Wooten Lone Star Models will happily supply required 7/s x 6 x 36 balsa timber reasonable fee one-piece six-inch slab available will need butt-join two pieces three-inch stock additional strength t could laminated would waste less wood would increase weight somewhat wing two pieces three-inch stock weighed 400 grams slab form Find heavy end slab make outboard wing Weighing wood order position weve just done has double benefit 1 get free tip weight sense being effective tip weight 2 heavier denser wood stronger outboard wing catches abuse inboard Make airfoil template soft aluminum plywood Youll want draw bunch lines wing slab before start cutting 1 Fore/aft centerline 2 Tip-to-tip underside line spaced August1997 41 Author has nicknamed model Sod Buster appreciates solid basic simplicity CL trainer difficult design simplicity Features visible include adjustable leadouts split landing gear rubber bands tank attachment stooge launcher hole subrudder Ten-year-old Mike Thornton Appleton WI gets introduction CL flying edge parallel leading edge 3 Tip-to-tip topside point max thickness spaced 18 inches back edge 4 Tip-to-tip trailing edge aft edge showing much thin 5 tip-to-tip line front edge showing upper lower camber meet 6 airfoil outline wingtip edge 7 wingtip rounding outline seen planform After lines drawn use carpenters plane rasp progressively finer grades sandpaper shave shape wing airfoil shape Creative folks will make concave sanding block using top portion airfoil template Once get hacking away wing will amazed just much rubble few ounces balsa can make shaved down plane Wear dust filter sanding Wipe entire wing down fairly damp ragenough lightly wet surface wood raise grain Allow dry sand 400-grit paper light way finish model method should use now want pick up additional wing area change appearance bit could add whats known stationary flaps about 1-1% inches wide root tapering nothing youll gain about 18 square inches will mainly effective during takeoff landings Assembly Epoxy finished subrudder place lightly clamping fuselage upside down padded vise allowing dry Align epoxy engine-mount unit place l-1 degrees outboard engine offset will fly no offset well Use slow-curing epoxy absolutely certain mount unit perpendicular lower half fuselage dry drill holes 3A6 dowel retaining pins help hold mount unit fuselage bottom Epoxy pins place Epoxy wing place being certain parallel top engine-mount unit Glue fin dorsal fin top fuselage unit now using aliphatic resin glue Titebond Sig-Bond etc dry fill sand smooth Titebond top half fuselage lower half pushrod uses two L bends end although soldered washers used prevent rubbing against wood parts solder joint may fail danger model ends simply too long fall out Once bends close plans specs possible remaining length differences made up moving stab fore aft needed before gluing place Slot inboard wing epoxy line guide place followed hard balsa backing Fasten wood screw tip Add August 1997 43 basic Freshman II components kit form ready assembly Music wire landing gear split allow easy mounting field replacement Spinner weights vary widely Williams Bros WW plastic top left weighs seven grams Fox bar stock aluminum spinner lower right 83 grams washers give about 5A- ounce total tip weight should tad too much raise wingtip during flight remove washers time wing level Epoxy landing gear eyelets place reason staggered in-line gear mount holes because fuselage too narrow fit both same hole gear system two-piece detachable split type allows easy onfield replacement individual wires perchance beginner should bend gear General Freshman II weights gramsWing slab 420 leadout guide 6 fuselage bottom profiled airfoiled 122 fuselage top profiled airfoiled 19 maple engine mount unit sanded 73 stabilizer slab 10 elevator slab 7 fin slab 4 subrudder 3 original Freshman used two-piece cross-grained bushed maple wheels wood Wood wheels cheap light tough microwave sandwich plans suggest soft rubber/plastic wheels weight penalty purely crash resistance Finish Tiy different finishing methods learn build pretty model Try finishing method outboard wing another inboard remember Paint has Si gnfi cant weight excess paint reliable means disable otherwise fine model conventional dope red tends lighter Some colors require extra coats cover thereby producing heavier model Black white yellow plus checkerboards good staffing points Engines RC swap meets can find old McCoy 29s 35s perhaps $20 older Fox lineup 191201125129135 same mount spacing theres K&B 191201123/ 29132135 natural green-head series brother Vecos came 19120112913 1135 also run great OS has offered 19 29 since 1955 SuperTigre has made fine 23129135 sizes PAW others make neat diesels Freshman II just model try out such things Want try pipe piped 40 beast would get seriously frisky anyone Rat Race Tanks Drill bottom overflow outlet hole run piece silicone tubing down through tank can attached common -inch rubberbands Sure have replace often what small piece rubber/foam padding underneath youll probably get some pretty decent runs Rubber bands permit height altered allow fast removal cleaning An extremely simple alternative simply glue tank place using Dow Corning clear silicone method also offers good vibration resistance Yet another alternative solder four small L-tabs tank corner use small wood screws bolts through holes tabs hold tank 44 Model Aviation CL Sport/trainer Wingspan 351/2 inches Engine 19-35 two-stroke Flying Weight 32 ounces approx Construction Balsa basswood maple Finish Dope Author recommends use SimonizTM waxThis adds visibility during flight Now Mid-i 9505 original Freshman left size comparison new~ version40 years later ~ -BELLCRANK MOUNTED- -UNDER WING III- -III- ---III ______ -________ ________ _________ ________II PLY-INREt TOP N BOTTOM 3/DDMW--ifPUSUROD- -71/9i-_ 1/3D DINI MUSIC WIRE LEAD-OUT LINES 114 N 3/B 5USD BALSA SACKING -EYELETS flU MW 032 SLOTh FOR ADJUST LEAD OUTS LEAD- OUT DETAIL THICKEST POINT AT DONCADMO 1A6 PLY TEMPLATE / y-hN/ -TEAS I/lA THICK HERE WING TEMPLATE00% OF CHORD 0% OF CHORD WING PLAN WARIERD TO ADJUST -LONG SCREW-ADO WINO TIP WEIGHT -- S- 1NNHr1 7SEAAI LINE FOR-- /3/IRLITE BALSA SHEET NOTE ANOS TIRXA NOR ROSA SACET FROM SO ORLOE ST4MODELS TEE TEST USE 3 STOCKIMDILILrI IF K IS NOT AVA LAB E -ELEVATORY 4 5/ NYLON Z HINGES SEE TEST 5/WLITE BALSA SHEET K3 MUPLE MOTH IIMOUNT ROUND AIL IIEDGES AND ORILL BEPLACEHALE LIC151 V.VBDLR MUSIC WIRETO SUIT ENGINE INBOARD WIOWN LANDING GEAR DETAIL DOWELS LANDING SEAR P011 ZN ENGI SHOWNw I/B LSANW F3/4 DIk SPIN BEN ICSWINO ROUND ALL FUSELAGE lOP VIEW EGNES BE LLCRAN II TOP AND BOTTOM UELLCRANA ROUNT PIJURROD BOISE 3/30 DIG NEISIC WIRE POSUROS ABI Z II AFT FUSELAGE IS I/B THICK TOP SPEW AIRFOILED FIN 3/IA LITE BANSA 3/lA LITE SHEET FIN-ARPOILED I/O BALSA SHEETBALSA SHEET ISHAPE PAINT ON CANOPYFUSELAGE TOP PUSUBODW EPOXYDETAILSSEE TEXTGUISES/IA BALSA SHEETII STABILIZERJJaEVATOR HONG HOLE WITH BRASS EYELET I/B PLYFOR STOOGE RELEASE WING AREA.210 50 IN FILE FUSELAGEAIRFOIL .... K GEARPOWERIS DR ENGINE DRY WEIGHT40 DL MASI SPEES RANGE DO KS MPH LENGTH30-I/O MODEL AVIATION FRESHMAN H DESIGNED BY DOUG DAMLKE DRAWN BY DOUR DARLEE IRKED PLAN BY 30K DEMARCO ALL RIGHTSSHET 837 RESERVEDI OFI L/DMWLE ROTOR JNT IA-S NYLON PROP AII 1 N CD -a iN C a 0 z CD CD CO CD w Co 31DU 3850 4661 ixx4965 3/16 x 26674 1/4x26690 3/8x286119 1/2x23D11042143 1/32 x 336435068 1/20 x 336435666 1/166336445060 3/32 x 343526167 1/8 x 352637304 3/16 x 3627684101 1/4x37894113130 5/16x3109152 3/Ox 3105115140170 1/263135150175205 3/463225310 1/32 x 456667992 1/28 x 456667992 1/16 x 456687992 3/32x46602106114 1/Ox 47693112134 3/lOx 487189149156 1/4x4106152162179 5/16 x 4182234 3/Ox 4 165 210239285 1/2 x 4249 285315 336 3/4x4358471 MATCHED SHEETS 42 48 3/32x4125 142 1/Ox 4150 169 3/16x4164 189 1/4x4176 285 BIRCH DOWELS36 1/816 3/1617 1/420 5/1627 3/837 1/254 5/874 AILERONS36 48 1/4x15782 1/4x1-1/46598 1/4x1-1/274105 1/4x289115 5/lOxl-1/474105 5/16x1-1/275106 5/16 x 286120 3/Ox 1-1/480115 3/Ox 1-1/283116 3/8x295135 1/2x1-1/295146 1/2x2106150 1/4x275 1/4x3109 3/8x290 3/8x3131 1/2x3154 A6xFxxx6APExxFAxxxFx66 2x16 SPRUCE TRIANGLES 36 3/8x3/854 1/2x1/275 3/4x3/495 1/lOx 1/8 1/lOx 1/4 1/16x3/8 1/16 x 1/2 3/32 SO 3/32 x 1/4 3/32x3/8 3/32x1/2 1/8 SQ 1/8x3/16 1/Ox 1/4 1/Ox 3/8 1/Ox 1/2 1/8x3/4 1/Ox 1 3/16 50 3/1661/4 3/lOx 3/8 3/lOx 1/2 3/16x3/4 3/16 x 1 1/4 SQ 1/4x3/8 1/4x1/2 1/4 x 3/4 1/4 xl 5/16 SQ 3/8 SQ 3/Ox 1/2 3/Ox 3/4 3/Ox 1 1/2 50 1/2 x 3/4 1/2 xl 5/8 SQ 3/4 SQ 3/4 xl BUNDLE DEALS 201/lOx 3 203/32x3 151/8x3 153/lOx 3 10 1/4x3 103/8x3 51/2x3 20 1/16x4 10 1/lOx 4 153/32x4 103/32x4 101/8x4 5 1/8x4 103/lOx 4 5 3/lOx 4 10 1/4x4 5 114x4 53/8x4 Si 1/2 6 4 TRIANGLES 1/4 3/8 1/2 3/4 1-1/2 2 ix 10 12 13 17 11 14 15 19 11 13 14 15 21 28 35 14 18 21 24 30 38 22 27 29 42 52 27 36 40 53 67 49 60 76 60 81 99 36 799 970 875 1050 075 1050 695 1235 1190 875 1000 1400 950 1300 21 23 27 36 45 23 27 29 36 45 59 30 33 41 58 78 35 45 57 68 86 64 82 104 86 111 132 48 900 1075 625 735 835 36 29 33 40 54 68 131 225 L14-13 usr36 48 11300378119 1/20x3 78119ILa 1/16x3 1781119 3/32x3 93144 1/8x3114179 3/16x3132202 1/4x3237 3/0x3188307I.. 1/2x3238382 3/4x3375519 1 x3532719 1/3264123108c 1/20x4123188c 1/lOx 4123188 3/32x4149232 1/8x411992162 3/16x4197300 1/4x4237332-J 3/8x4357563 1/2 x 4482608 4-6 ix wxx6sxx/xclln xvxlaOilih SUPERIOR LITE1224 48 1/Ox 6250395 1/8x12395750 1/4x12495950 LITE PLY1224 48 1/OxO 100 125 235 1/Ox 12 125 235 450 1/4x6 125 175 340 1/4x 12 175 345 650 3 PLY BIRCH 12 24 48 1/64 x 6 140 275 495 1/64 x 12 279 510 950 1/32x695180325 1/32x12180335635 1/lOxO99180325 1/lOs 12180335625 1/OxO95180335 1/Ox 12180335690 4 PLY BIRCH 122448 3/16 x 6109 215 345 3/16x12215 345 085 5 PLY BIRCH 122448 3/32x6135260490 3/32x12260500895 1/866145200525 1/Ox 12280550950 1/4 x 6125250388 1/4x12230380725 7 PLY BIRCH 12 24 48 3/866150 285 525 3/8x12285 9581000 0 PLY BIRCH 122448 1/2x6200350 575 1/2x123505801125 HARD MAPLE18 1/461/445 1/463/850 1/4x1/250 3/8x3/858 3/861/256 3/8x3/469 3/Oxi75 3/Oxl-1/2119 1/261/275 78 3063/405 3/4x3/492 SPRUCE/ BA553648 6D 1/lOx 1/42430 3/3261/42539 1/8 SQ2129 1/861/42836 1/8x3I8LLj3546 1/861/24155 1/863/44703 3/16 SQ2038 3116x3/O4093 3/1661/24064 3/1663/46588 1/4 SQ4557100 1/4x3/O5369 1/4x 1126101138 3/8 SQ6485138 3/861/27591154 1/2 SQ85105180 1/263/494129200 4611 8666 66764 FOR PACIIA6IN6 GROOVED LG MOUNTS 3/863/41/850 3/863/45/3250 1/263/43/1055 WING SIIINS3D36 1/32x12479535 1/20x12479535 1/lOx 12479535 3/32x12579045 TRAILING EDGES38 1/Oxl/229 3/16x3/435 1/4x139 5/1661-1/450 3/Oxl-1/250 1/26290 EPOXY 4-1/2 OZ 8 OZ MioxIe425809 15 Minxte425009 30 Minute425069 2 Hxxr425069 20 Min1n429840 INSTANT GLUE 1/2 xx Thin GF185 1 xx Thin xr OF300 2 xz Thin xr GE550 866 Thin xnGF1058 1/2 xx txtrx Tnick200 1 xx Extrx thick330 2ox Exlrx Thick600 Oxx Extrx thick1800 ODORLESS FOR FOAM 1/2 xz Thin OF425 1 xx Thin xr OF785 266 Thin xr OF1385 2 xx Accelerxtxr315 Oox Acc Oxtill095 Ext tips 6149 Ext tips x finn 0149 SEND 61 FOR COMPLEnE CATALOG INFO & HELP 806-745-6394 ORDERS ONLY 1-800-687-5555 24 HR FAX 806-745-6483 Coot 48 State Handting Charge $650 Wepa UPS Add $559 COD SEND MA $000 extra PP APO FPO accept 058 M C Discoxer persona checksILLONE STAR MODELS 01 COD 6 6/ % too Texas US currency Mm wood order $1500 ORDERS TO Rt9 Box 437 LUbbaGk TX 79423 Spinner plastic spinner shown piano intended expendable can up 2 ounces difference spinner weight middle-sized engines can swap spinners gain lose nose weight Heavier spinners also act flywheels tend make starting easier make engine run smoother reduce vibration general Props using 19 sport engine should try 9 x 4 23 0025 9 x 5 larger 29-36 stuff should use lOx 5 nylon props should stress-relieved safety reasons placing prop boiling water 15 minutes allowing cool addition Rit dye boiling water will color prop match airplane improve visibility safety next day sand very tip prop add contrasting color Flying 1 9-powered models can go 48- 52-foot lines starters 23-25 models consider 51- 53-foot lines 29-35 models can go out 55-58 feet length Yes good 19 will fly model thick 70-foot lines Fun hardly thing regular basis wood parts become fuel-soaked can removed spraying infected areas K2r locai hardware store Spray allow dry brush off white powder next day Repeat needed until glue will stick again Amazing stuff want jack up odds successful flight simple thing find PAMPA Precision Aerobatic model Pilots Association member help Contact Lucky Pyatt Membership Secretary 9629 Hazard Ave Garden Grove CA 92844 Ill answer questions can about Freshman II SASE requested would much enjoy photo postcard experiences aerial dreadnaughtthe mighty Freshman II Dahike 2054 Point Comfort Oshkosh WI 54901 Safe Easy RC Flying has heen favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing patterns Safely landing ptane Learning about Safety Cost $995 Building Flying RC Sailplanes Electric Gliders explores jutneacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Also availahle pocket guide containing Building tips techniquesreproduction of acrobatic maneuvers Cost $0195 Cost $299 Call Nighthawk Publishing 1-800390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 Shipping & Handling charge $250 added book purchased 46 Model Aviation C Sport Competition Aerobatics comprehensive manual takes exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have hee. proven time again under actual training conditiono Chapters include Choosing aerobatic airplanes precisely trimming airplanes ral acrobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $0395

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