Radio Control: Electrics

RADIO CONTROL ELECTRICS EF U AJ k-1 zi w ii JU L[ COLUMN offers some info mini/lite/slow RC Electric continues discussion experienced modelers wannabe beginning E-fliers growing interest small lowpower and/or slow Electric RC April 1999 issue Cloud Nine Micro RC Newsletter arrived preparing write column publication produced John Worth runs small business called Cloud Nine caters really tiny RC aeromodeling John describes three categories micro RC Indoor Only Indoor/Outdoor Outdoor Only largely related weight one-ounce model typically suited Indoor Only two- three-ounce model may suited either Out fourounce model up suited Outdoor flying closely coupled consideration wing area perhaps specifically model speed Most Indoor facilities small relative great outdoors indoor piloting much easier slow-moving model Larger heavier quicker airplanes need room can generally handle some breeze better outdoor designs one- four-ounce models RC models may Electric CO2 powered what meant micro RC yes products available allow tiny stuff flown enjoyed sounds interesting please write John 4326 Andes Dr Fairfax VA 22030 Tel 703 273-0607 10 am- 2 pm weekdays can subscribe Cloud Nine buy tiny RC stuff need too also encourage read sixtimes-a-year Electric Flight column Dick Miller Flying Models Dick devotes column small RC six in-between columns written Don Belfort cover Electric general micro RC perhaps best described very small size weight related though larger kind slow-flier photo shows John Hickeys rendering Modelair-Techs Slowmowatt design park-flier model micro context above still rather light weight slow-flying can flown some Indoor sites outdoors calm conditions Slowmowatt 51-inch-span 430 sq stick design Johns weighs 12 ounces power system seven-cell 350 mAh pack running gear drive motor/prop combo system turns 7 x 6 4700 rpm 27 amp draw full throttle model has small receiver two servos rudder elevator small BEC speed control John flies Slowmowatt big backyard says cruises nicely half throttle will easily take off smooth ground surface full throttle does handle mild breeze Its clear covering called Doculam Modelair-Tech supplies along eveyrything else needed build model including 116 Model Aviation 4Modelair-Techs Slowmowatt park flier weighs 12 ounces low wing loading flies well about 20 watts Two REVOLTIs described text Design published November 1994 ModelAviation plans available geared motor $4195 course need RC system batteries speed control plus adhesives etc Electric micro/lite/slow E-RC stuff very appealing Maybe someday think just 20-some years ago very little could flown Electric As Ive saying flies can flown Electric last few columns next few offered support experienced RC modelers considering just beginning Electric columns Ive placed great deal emphasis value recent aeromodeling magazines Electric columns feature articles also referred books ezonemagcom site Now want suggest S&E Modeler magazine dedicated just two topicsone personally need subscribe magazine S&E slick bimonthly edited Wil Byers did mention publication earlier because subscription recent wanted see several issues before commenting Add resource list E-information sources phone number 509 6270456 subscription cost $24 US also available hobby shops Last months column illustrated wet-todry conversion Great Planes Dazzler showed changeover obeyed Electric Rules Thumb should fly very well quiet power Lets review versatile designed-forElectric aircraft may just what experienced readers need convenient E-starters REVOLT November 1994 Model Aviation just finished logbook review find have accumulated 1277 flights own REVOLTsa whole lotta flyin design person REVOLT sport cabin design somewhat reminiscent Vintage RCs intended test vehicle kinds Electric electronic things has spacious cabin area generous motor compartment large access hatch plenty battery motor-mounting options provisioned lots flowthrough cooling air 600 sq wing uses 12/2% flat-bottom section six degrees dihedral per panel wing heavy lifter purpose Slow Fuero builder can assemble fully band built covered airplane install its radio speed control battery pack single evening 41 reduction drive motor fg fuselage wheel pants landing gear spinner Jenny Bee Jenny Bee Wingspan 36 Wing area 296 sq Weight 7 oz Wingloading 34 oz/sq ft Airfoil Undercambered Skill level INT/INT Motor supplied reduction drive prop N slowflying ubralight electric airplane wh radio elec tric gear.all up flying weight 7 ounces little airplane very maneuverable comes fully built surfaces covered hinged KO NTRONIK Brushless motors speed controls information go wwwnesailcom Northeast Sailplane Products 140 Kirby Lane Williston VT 05495 Call Us 802-658-9482 September 1999 117 FMAs S70 servo very small popular small Electrics Weighs about e Parkllyer scale model experimental aircraft tbe Jodel low wing aircraft generous dihedral forgiving fught characteristics Jodel can land take off 15 feet Assemble fully built airplane install its radio speed control battery park single evening factory installed 61 reduc tion drive motor three-bladed prop custom spinner MASIElI AIRSCREW Send sase catalog WINISOR P1UPELLER ( 3219 Monier Circle Rancho Cordova CA 95742 wwwmasterairscrewcom VOLT designed flown RME rudder motor elevator ailerons nor recommended REVOLT has served its original purpose very well key player development Sport Speed Control see page 76 has supported airborne telemetry well dual glitch counters used during ESC/noise evaluations over time REVOLT has also become mainstay just flyin around because ifs very fun fly have used REVOLTs basic trainers because hands-off slowflier properly set up aspect may little interest experienced modelers may value instructing beginning pilots Several readers have equipped REVOLTs cameras Ive used carry release small gliders MA 1/98 Although aerobatic good-flying fun workhorse design can serve RC aeromodeler very well Other REVOLT discussion can found RC Electrics columns 9/93 10/93 1/94 3/94 9/94 2/95 5/95 Article reprints available AMA HQ REVOLTs have flown everything direct-drive can 05 seven cells geared 40 cobalt 21 cells Perhaps popular practical power systems range geared 05 cobalts seven cells through geared 25s 14 good system choices between Recall Rule Thumb states power system typical Electric makes up nominal half total weight reasonable limits being 40/60 60/40 companion Rule has motor power input about 50 watts per pound will generally fly models very well its large high-lift wing REVOLT sailplane OT designs can actually fly quite well less power lets stick recommended numbers now REVOLTs typically weigh about 30 ounces radio power system stuff power system weighs about 30 ounces would meet guideline above geared cobalt 05 its seven-cell 17 Ah pack speed control wiring prop etc weigh about 24 ouncesvery close target Total weight 54 ounces 34 pounds 50 watts/pound power load would require 170 watts Using popular number 11 volts per cell under load battery voltage 77 volts motor current would have 170/77 22 amps full throttle perfectly reasonable current sport flying fact 1277 flights made power system using 11 x 7 prop REVOLT flies very nicely including taking off smartly smooth surface wing loading 54/600/144 13 oz/sq ftits floater geared 25 14 cells installation weighs about 43 ounces total weight 73 ouncesstill within guideline same 50 watts/pound power loading motor power input 50 x 7/I6 watts same 11 volts-per-cell assumption motor current 228/ll x 14 amps rather low current relatively speaking flight would quite long other hand propped up 22 amps above comparison power level would 340 watts power loading would 340/7/is 75 watts per pound wing loading about 175 oz/sq ftvery reasonable assure configuration flies very well also accounts 1277 flights way version blasts off almost ground climbs enthusiastically very impressive angle course named power levels rarely held throughout flight typical flight reduced throttle via speed control reference columns describe power system choices work very well like very much 10-cell-powered Magnetic Mayhem Reverse geared 31 II x 7 designed-for-Electric REVOLT model designsare readily adaptable wide range Electric power systems possible system choices meet Rules Thumb work well does know whats good choice Answer Hold question later Keep mind Rules guidelines help assure initial success After success comes automaticallyjust wet power modeler reluctantly cautiously tries first Electric second rather quickly proceeds sorts additional Electrics total confidence todays accomplished E-modelers came Its same story played out long ago wet power rubber power too hope columns widening Electric view lessening apprehension youre now inclined take first E-power project Theres info coming such response question above Please enclose SASE correspondence would like reply Model Aviation eStuffcom Buy Sell Radio Contml Equipment Web wwwSpareStuffaom Stripwood easier & accurate 1/32 increment precision cuts Uses standard type 11 hobby blade Cuts 1/2 wide 1/4 thick Builders favorite $595 suggested retail Rounds smooths cowlings & fuselages Uses heavy-duty cutting blade Micro-adjustable cutting depth Shape edges & thins strips Great companion tool Balsa Stripper $595 suggested retail