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Building Effective Dive Flaps

Author: I. Munninghoff


Edition: Model Aviation - 1996/11
Page Numbers: 59, 60, 62

The first time saw set what call dive flaps installed Curare did super job slowing down slick Pattern model tried set own Pattern airplane immediately fell love capabilities sorts flap configurations work well full-scale aircraft Depending particular need flap styles shown provides extra control over lift drag big airplanes needespecially theyre flying slowly landing approach Except spoilers increase lift dramatically model airplanes dont need extra lift have plenty wing area hold up low speeds long can avoid tip-stallinganother issue real problem models getting slowed down enough Sure long flat idle-power approach will thats always best way get down engines idle isnt slow enough final approach little too steep models wing still operating too efficiently model will float down full length runway Theres just no easy way slow down model installing flap types shown will help little since main function increase lift Any drag increase secondary comparatively minor So what can can install dive flapsthats what combine Length iotennon Optional1/4 1/2 Aileton Chotd Recess 64to1/32 1 / Plyscood Witg Toilitg idgo0 Stood ord Stock 1flkU ~ November1996 59 U IVAN MUNNINGHOFF Photoc Author Graphic Desiqn Heather Erdahi efficient drag-increasing aspects plain flap spoiler simple affair can stop airplane dead its tracks As device deployed aft portion goes down providing small increase lift top part goes up providing dramatic decrease lift combination generates huge increase cross-sectional area wing turn creates huge increase overall drag Hence deployed flaps will rapidly slow down model theyre easy build probably already know model has strip ailerons inboard tA does very little help airplane roll inboard section can severed rest aileron assuming youre running two aileron servosone mounted out wing ought doing inboard piece can actuated flap adding another servo side putting wings center Add piece plywood shown dive flaps done accompanying photos should give plenty ideas model already has flaps adding plywood extension flaps leading edge thats necessary turn standard flaps dive flaps drawing shows shallow recess top surface wing aesthetic requirement Because airflow trailing edge wing 3I 60 Model Aviation s approximately nine inches long 2 inches wide about inch flap extending above wing Flounders deployed flaps standard Control Line-style elevator horn used actuate Separate servo retract switch raises lowers drag flaps 4 x 12-inch flaps too bigdeployment resulted vigorous pitch-down practice flipping retract switch adding up-elevator solved problem 0 DEStGNED TO CLASSIC SCALE REALISM THIS POPULAR StZE NAVY WARBIRD DOES AFRO BATIC AND DOG FIGHT MANEUVERS WITH EASE DELUXE KIT INCLUDES TWO FULL SIZE PLANS CONSTRUCTION MANUAL PRECtSION CUT FOAM WING AND TAIL CORES DETAILED CANOPY HEAVY DUTY COWL LASER CUT FORMERS AND BULKHEADS EXTEN StVE HARDWARE PACKAGE FULL COLOR DECAL SHEET MOLDED SCALE ENGINE FACE PARTtAL COCKPIT WITH INSTRUMENT PANEL AND ALL NECESSARY SHEETtNG TO FINISH THE ENTIRE AIRFRAME starting separate surface air will never notice theres thin piece plywood laying top dont believe simply tape piece onto trailing edge wing current airplane try ityoull never know word caution almost flaps regardless type will cause some sort pitching tendency deployed major effect flap create lift nose will usually pitch up flaps tend blank out stabilizer nose will usually pitch down Seldom pitching tendency severe enough problem youre ready Some radios have capability trim out changes Before first use dive flaps low final approach try deploying high altitude see what happens prepare yourself actual landing bigger dive flaps drag can create must careful flap too large like greater span stabilizer might blank out stabilizer airplane will rapidly point straight down Ive done its unpleasant surprise limit dive flap span 2/3 stabilizer span less pitching problem will minimized latest model dive flaps can fly idle straight-down approach over end runway about 50 feet begin pullout landing stopped less 100 feet down runway dive flaps very effective theyre blast experiment friends wont believe vertical four-point rolls final approach Munninghoff 7815 Mallard Dr Falcon CO 80831 62 Model Aviation SERIES F-6-F HELLCAT BY WING MFG DESIGNED FOR RETRACTS AND FL KIT #1002 RETAIL $28999 WING SPAN 61 WING AREA 671 SQ IN FUSELAGE LENGTH WING MFG 306 E SIMMONS STREET ENGINES TWO STROKE 60 TO 90 FOUR STROKE 60 TO 1 20 GALESBURG IL 61401 301-342-3009 WEIGHT TO 10 LBS AT YOUR DEALER OR ORDER DIRECT RADIO 6 CHANNEL SEND $500 FOR COMPLETE CATALOG Its Robart Manufacturing Inc POBox 1247 DeptA StCharles IL 60174 Phone 63fl-84-76 16 E-mail robart@robartcom The in Retraclable Landing Gear Fixed Scale C. HingePoint Hinges Modeling Tools Equip model Robart retractable landing gear take off whole new world flying excitement Retracts look cool but give plane new feel freedom perform its easy too Robart gear come complete detailed installation instructions Robart retracts youll experience greater performance overall better equipped enjoy fun RIC hobby has offer Whatever size model fly large small Robarts got right gear accessories plane So get flying fun model Ask dealer show Right Stuff Robart today 1996 Robart MfQ

Author: I. Munninghoff


Edition: Model Aviation - 1996/11
Page Numbers: 59, 60, 62

The first time saw set what call dive flaps installed Curare did super job slowing down slick Pattern model tried set own Pattern airplane immediately fell love capabilities sorts flap configurations work well full-scale aircraft Depending particular need flap styles shown provides extra control over lift drag big airplanes needespecially theyre flying slowly landing approach Except spoilers increase lift dramatically model airplanes dont need extra lift have plenty wing area hold up low speeds long can avoid tip-stallinganother issue real problem models getting slowed down enough Sure long flat idle-power approach will thats always best way get down engines idle isnt slow enough final approach little too steep models wing still operating too efficiently model will float down full length runway Theres just no easy way slow down model installing flap types shown will help little since main function increase lift Any drag increase secondary comparatively minor So what can can install dive flapsthats what combine Length iotennon Optional1/4 1/2 Aileton Chotd Recess 64to1/32 1 / Plyscood Witg Toilitg idgo0 Stood ord Stock 1flkU ~ November1996 59 U IVAN MUNNINGHOFF Photoc Author Graphic Desiqn Heather Erdahi efficient drag-increasing aspects plain flap spoiler simple affair can stop airplane dead its tracks As device deployed aft portion goes down providing small increase lift top part goes up providing dramatic decrease lift combination generates huge increase cross-sectional area wing turn creates huge increase overall drag Hence deployed flaps will rapidly slow down model theyre easy build probably already know model has strip ailerons inboard tA does very little help airplane roll inboard section can severed rest aileron assuming youre running two aileron servosone mounted out wing ought doing inboard piece can actuated flap adding another servo side putting wings center Add piece plywood shown dive flaps done accompanying photos should give plenty ideas model already has flaps adding plywood extension flaps leading edge thats necessary turn standard flaps dive flaps drawing shows shallow recess top surface wing aesthetic requirement Because airflow trailing edge wing 3I 60 Model Aviation s approximately nine inches long 2 inches wide about inch flap extending above wing Flounders deployed flaps standard Control Line-style elevator horn used actuate Separate servo retract switch raises lowers drag flaps 4 x 12-inch flaps too bigdeployment resulted vigorous pitch-down practice flipping retract switch adding up-elevator solved problem 0 DEStGNED TO CLASSIC SCALE REALISM THIS POPULAR StZE NAVY WARBIRD DOES AFRO BATIC AND DOG FIGHT MANEUVERS WITH EASE DELUXE KIT INCLUDES TWO FULL SIZE PLANS CONSTRUCTION MANUAL PRECtSION CUT FOAM WING AND TAIL CORES DETAILED CANOPY HEAVY DUTY COWL LASER CUT FORMERS AND BULKHEADS EXTEN StVE HARDWARE PACKAGE FULL COLOR DECAL SHEET MOLDED SCALE ENGINE FACE PARTtAL COCKPIT WITH INSTRUMENT PANEL AND ALL NECESSARY SHEETtNG TO FINISH THE ENTIRE AIRFRAME starting separate surface air will never notice theres thin piece plywood laying top dont believe simply tape piece onto trailing edge wing current airplane try ityoull never know word caution almost flaps regardless type will cause some sort pitching tendency deployed major effect flap create lift nose will usually pitch up flaps tend blank out stabilizer nose will usually pitch down Seldom pitching tendency severe enough problem youre ready Some radios have capability trim out changes Before first use dive flaps low final approach try deploying high altitude see what happens prepare yourself actual landing bigger dive flaps drag can create must careful flap too large like greater span stabilizer might blank out stabilizer airplane will rapidly point straight down Ive done its unpleasant surprise limit dive flap span 2/3 stabilizer span less pitching problem will minimized latest model dive flaps can fly idle straight-down approach over end runway about 50 feet begin pullout landing stopped less 100 feet down runway dive flaps very effective theyre blast experiment friends wont believe vertical four-point rolls final approach Munninghoff 7815 Mallard Dr Falcon CO 80831 62 Model Aviation SERIES F-6-F HELLCAT BY WING MFG DESIGNED FOR RETRACTS AND FL KIT #1002 RETAIL $28999 WING SPAN 61 WING AREA 671 SQ IN FUSELAGE LENGTH WING MFG 306 E SIMMONS STREET ENGINES TWO STROKE 60 TO 90 FOUR STROKE 60 TO 1 20 GALESBURG IL 61401 301-342-3009 WEIGHT TO 10 LBS AT YOUR DEALER OR ORDER DIRECT RADIO 6 CHANNEL SEND $500 FOR COMPLETE CATALOG Its Robart Manufacturing Inc POBox 1247 DeptA StCharles IL 60174 Phone 63fl-84-76 16 E-mail robart@robartcom The in Retraclable Landing Gear Fixed Scale C. HingePoint Hinges Modeling Tools Equip model Robart retractable landing gear take off whole new world flying excitement Retracts look cool but give plane new feel freedom perform its easy too Robart gear come complete detailed installation instructions Robart retracts youll experience greater performance overall better equipped enjoy fun RIC hobby has offer Whatever size model fly large small Robarts got right gear accessories plane So get flying fun model Ask dealer show Right Stuff Robart today 1996 Robart MfQ

Author: I. Munninghoff


Edition: Model Aviation - 1996/11
Page Numbers: 59, 60, 62

The first time saw set what call dive flaps installed Curare did super job slowing down slick Pattern model tried set own Pattern airplane immediately fell love capabilities sorts flap configurations work well full-scale aircraft Depending particular need flap styles shown provides extra control over lift drag big airplanes needespecially theyre flying slowly landing approach Except spoilers increase lift dramatically model airplanes dont need extra lift have plenty wing area hold up low speeds long can avoid tip-stallinganother issue real problem models getting slowed down enough Sure long flat idle-power approach will thats always best way get down engines idle isnt slow enough final approach little too steep models wing still operating too efficiently model will float down full length runway Theres just no easy way slow down model installing flap types shown will help little since main function increase lift Any drag increase secondary comparatively minor So what can can install dive flapsthats what combine Length iotennon Optional1/4 1/2 Aileton Chotd Recess 64to1/32 1 / Plyscood Witg Toilitg idgo0 Stood ord Stock 1flkU ~ November1996 59 U IVAN MUNNINGHOFF Photoc Author Graphic Desiqn Heather Erdahi efficient drag-increasing aspects plain flap spoiler simple affair can stop airplane dead its tracks As device deployed aft portion goes down providing small increase lift top part goes up providing dramatic decrease lift combination generates huge increase cross-sectional area wing turn creates huge increase overall drag Hence deployed flaps will rapidly slow down model theyre easy build probably already know model has strip ailerons inboard tA does very little help airplane roll inboard section can severed rest aileron assuming youre running two aileron servosone mounted out wing ought doing inboard piece can actuated flap adding another servo side putting wings center Add piece plywood shown dive flaps done accompanying photos should give plenty ideas model already has flaps adding plywood extension flaps leading edge thats necessary turn standard flaps dive flaps drawing shows shallow recess top surface wing aesthetic requirement Because airflow trailing edge wing 3I 60 Model Aviation s approximately nine inches long 2 inches wide about inch flap extending above wing Flounders deployed flaps standard Control Line-style elevator horn used actuate Separate servo retract switch raises lowers drag flaps 4 x 12-inch flaps too bigdeployment resulted vigorous pitch-down practice flipping retract switch adding up-elevator solved problem 0 DEStGNED TO CLASSIC SCALE REALISM THIS POPULAR StZE NAVY WARBIRD DOES AFRO BATIC AND DOG FIGHT MANEUVERS WITH EASE DELUXE KIT INCLUDES TWO FULL SIZE PLANS CONSTRUCTION MANUAL PRECtSION CUT FOAM WING AND TAIL CORES DETAILED CANOPY HEAVY DUTY COWL LASER CUT FORMERS AND BULKHEADS EXTEN StVE HARDWARE PACKAGE FULL COLOR DECAL SHEET MOLDED SCALE ENGINE FACE PARTtAL COCKPIT WITH INSTRUMENT PANEL AND ALL NECESSARY SHEETtNG TO FINISH THE ENTIRE AIRFRAME starting separate surface air will never notice theres thin piece plywood laying top dont believe simply tape piece onto trailing edge wing current airplane try ityoull never know word caution almost flaps regardless type will cause some sort pitching tendency deployed major effect flap create lift nose will usually pitch up flaps tend blank out stabilizer nose will usually pitch down Seldom pitching tendency severe enough problem youre ready Some radios have capability trim out changes Before first use dive flaps low final approach try deploying high altitude see what happens prepare yourself actual landing bigger dive flaps drag can create must careful flap too large like greater span stabilizer might blank out stabilizer airplane will rapidly point straight down Ive done its unpleasant surprise limit dive flap span 2/3 stabilizer span less pitching problem will minimized latest model dive flaps can fly idle straight-down approach over end runway about 50 feet begin pullout landing stopped less 100 feet down runway dive flaps very effective theyre blast experiment friends wont believe vertical four-point rolls final approach Munninghoff 7815 Mallard Dr Falcon CO 80831 62 Model Aviation SERIES F-6-F HELLCAT BY WING MFG DESIGNED FOR RETRACTS AND FL KIT #1002 RETAIL $28999 WING SPAN 61 WING AREA 671 SQ IN FUSELAGE LENGTH WING MFG 306 E SIMMONS STREET ENGINES TWO STROKE 60 TO 90 FOUR STROKE 60 TO 1 20 GALESBURG IL 61401 301-342-3009 WEIGHT TO 10 LBS AT YOUR DEALER OR ORDER DIRECT RADIO 6 CHANNEL SEND $500 FOR COMPLETE CATALOG Its Robart Manufacturing Inc POBox 1247 DeptA StCharles IL 60174 Phone 63fl-84-76 16 E-mail robart@robartcom The in Retraclable Landing Gear Fixed Scale C. HingePoint Hinges Modeling Tools Equip model Robart retractable landing gear take off whole new world flying excitement Retracts look cool but give plane new feel freedom perform its easy too Robart gear come complete detailed installation instructions Robart retracts youll experience greater performance overall better equipped enjoy fun RIC hobby has offer Whatever size model fly large small Robarts got right gear accessories plane So get flying fun model Ask dealer show Right Stuff Robart today 1996 Robart MfQ

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