wing optimization (denis howe's method) - excel spreadsheet

Download Wing Optimization (Denis Howe's Method) - Excel Spreadsheet

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For a concept LPG fueled aircraft, Hence no fuel tanks in the wing. Main tanks placed on fuselage. So fuel lines in stage II can be ignored (Howe's Method calls for a conventional config)MS Excel Spreadsheet only.

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W.Opt sample ORIGINALPARAMETERSREQUIREMENTSANALISISCHART OF RESULTSAt/cBypass RToLLLVa maxVd(Mn)crit(Mn)crSigma cr1Sigma cr2MaxRgeTake offAcc.StopSec Seg. Climb9.10.128422001850722000.820.820.33690.29716500(Mg/S)o1st.app(T/Mg)o(T/Mg)oTau co(Cd)co/(Cl)us(T/Mg)oAt/c=0.11At/c=0.13At/c=0.15SP=16ADes Pt40000.22373654010.22457291490.1976418810.84568342480.01786697560.296338417770.363562608890.3621935899110.361565373910.340.308745949110.90.3087794256ASSUMED45000.24592272580.24658023740.22071668160.83632255490.01786697560.299655302380.3339957013100.3333081712120.333304466212.170.3087459491M1/MoS^-0.1RwType facClEAS sigSS alphaSSgammaFlap Faca CruiseNPP.Fac sLam.ChrdGust SenTO Mn50000.26774506950.26817555250.24441087310.82746882390.01786697560.302861546990.3109412106110.3107785241130.311255030413.890.30874594910.990.65.51.10.48122.740.0213003.750.7010.355000.28926103170.28941708520.26885609390.81904777590.01786697560.3059754209100.3087459491120.3087459491140.308745949160000.31051609510.31035082340.29418508910.8110015660.01786697560.3090111025110.3087459491130.3087459491150.3087459491INITIAL CALCULATED VALUES65000.33154704870.33101386530.32053633580.8032841930.01786697560.3119798574120.3087459491140.3087459491160.3087459491Ml/MoMcr/Mo(Cl max)o (Cl us)o(Cl a)o(Cl use)o(Cdz)lsSigma cr.70000.35238419010.35143666650.3480581620.79585835950.01786697560.31489081570.870.97152932123.151.921.890.650.01716066110.336975000.37305285530.37164460030.37691281150.78869332690.01786697560.3177515004A=7A=8A=9A=10A=11A=1280000.39357451050.39165907320.40728079140.78176340650.01786697560.320568270.363562608880.333995701390.3109412106100.3087459491110.3087459491120.3087459491PRELIMINARY CALCULATIONS5961.42736553690.30888477090.30874594910.29219650810.81161005950.01786697560.308779425690.3621935899100.3333081712110.3107785241120.3087459491130.3087459491140.3087459491cos deltaDelta degWave Dr.F(Cdz)cr(Cd)co(Kv)o(Kv)crTau(clMn1)Tau(clMn2)Start of cruiseLanding-rev. thrust110.3615653739120.3333044662130.3112550304140.3087459491150.3087459491160.30874594910.863539559830.28587259340.120.01743523160.02962337320.04552923680.04719017990.34158814410.2437287224(Mg/S)oFact.Qm(T/Mg)o-1(T/Mg)o-2Cl case-1Cd-1(L/D)-1Mn*L/D(T/Mg)oLlength40000.20782745540.27763950620.28348483790.31119928140.022005364314.141973644811.59641838870.29633841771611.5074614943Cl maxCl usCl aCl useVa calcVa(Mg/S)o ld(Mg/S)o gtCor LL45000.18473551590.26189964150.27130161060.35009919160.023219305715.077935383912.36390701480.29965530231609.8094607042.72014961331.65799595481.6320897680.561300713972.7147255532725961.42736553693469.07674355591825.9126450000.16626196440.2506661410.26331226050.38899910170.024576063915.828372840712.97926572940.30286154691608.178516050155000.15114724030.24270999630.25837300310.42789901190.026075638616.409914940813.45613025150.30597542091606.604268233460000.1385516370.23721186830.2557213150.46679892210.0277180316.840984781813.8096075210.31035082341604.408243880665000.12789381870.23360452250.25482929580.50569883220.029503238117.140451858214.05517052370.33101386531594.283312469970000.1187585460.23148279120.25531987340.54459874240.031431262817.326658045314.20785959710.35143666651584.658058574775000.11084130960.23054955160.25691652860.58349865260.033502104117.416776274814.28175654530.37691281151573.151300439280000.10391372770.23058196140.25941187180.62239856280.035715762117.426439353114.28968026960.40728079141560.11154279645961.42736553690.13944811720.23756263620.25585758240.4637979780.027586243516.812654409813.7863766160.30877942561605.1947927384SUMMARY(T/Mg)o(Mg/S)oTake offAcc.StopSec.SegCruise1Cruise2Gust Sen..Landing.40000.22457291490.1976418810.29633841770.27763950620.2834848379SUBSONIC FLIGHT - FAN ENGINE 145000.24658023740.22071668160.29965530230.26189964150.271301610650000.26817555250.24441087310.30286154690.2506661410.263312260555000.28941708520.26885609390.30597542090.24270999630.258373003160000.31035082340.29418508910.30901110250.23721186830.25572131565000.33101386530.32053633580.31197985740.23360452250.254829295870000.35143666650.3480581620.31489081570.23148279120.255319873475000.37164460030.37691281150.31775150040.23054955160.256916528680000.39165907320.40728079140.32056820.23058196140.25941187185961.42736553690.30874594910.29219650810.30877942560.23756263620.25585758240.150.30877942565961.42736553690.155961.42736553690.7

3469.07674355590.153469.07674355590.7

RESULTAt/c(Mg/S)o(T/Mg)oL/DCase Cl(Cd)z o(Cd)z cr(Kv)o(Kv)crSPcos DeltaRev t land9.10.1285961.42736553690.308779425616.81265440980.4637979780.01716066110.01743523160.04552923680.047190179914.90499290850.86353955981605.1947927384

SUMMARY OF RESULTSAt/c(Mg/S)o(T/Mg)oL/DCase Cl(Cd)z o(Cd)z cr(Kv)o(Kv)crSPcos Delta70.116246.39608640180.363562608815.5438359340.48596849330.01709499790.01736851790.05676860310.058839567212.53984698020.9048190.135930.17485125850.362193589915.19012627270.4613665380.0171679570.01744264430.05860707170.060745104612.66824899910.8590120.155622.16715469040.361565373914.8015456780.43740359460.0172409160.01751677070.06068759530.062901527412.8926846290.81439680.116246.39608640180.333995701316.42122789340.48596849330.01709499790.01736851790.04994426650.051766273313.6312977370.9048190.135930.17485125850.333308171216.00392100120.4613665380.0171679570.01744264430.0516067220.053489376513.77087568810.8590120.155622.16715469040.333304466215.55293967970.43740359460.0172409160.01751677070.05348805850.055439345714.01484588160.81439690.116246.39608640180.310941210617.17454384370.48596849330.01709499790.01736851790.04464132360.046269874814.67261527970.9048190.135930.17485125850.310778524116.69912748080.4613665380.0171679570.01744264430.04616688010.047851084814.8228558230.8590120.155622.16715469040.311255030416.1916884890.43740359460.0172409160.01751677070.04789329330.049640478915.0854633060.814396100.116246.39608640180.308745949117.82829516730.48596849330.01709499790.01736851790.04040247230.041876386915.67133382750.9048190.135930.17485125850.308745949117.29984441140.4613665380.0171679570.01744264430.04181850960.043344082315.83180076980.8590120.155622.16715469040.308745949116.74130121110.43740359460.0172409160.01751677070.04342098410.045005016416.11228311410.8143961927110.116246.39608640180.308745949118.40095077390.48596849330.01709499790.01736851790.03693690720.038284395216.63322223710.9048190.135930.17485125850.308745949117.82406850830.4613665380.0171679570.01744264430.03826333790.039659215116.80353845540.8590120.155622.16715469040.308745949117.21918243090.43740359460.0172409160.01751677070.0397644080.041215045417.10123648280.814396120.116246.39608640180.308745949118.90668706060.48596849330.01709499790.01736851790.03405088920.035293092917.56281961340.9048190.135930.17485125850.308745949118.28550738740.4613665380.0171679570.01744264430.03530264760.036590516517.7426544630.8590120.155622.16715469040.308745949117.63848978610.43740359460.0172409160.01751677070.03671921410.038058760518.05699023510.814396

10.340.116246.39608640180.308745949118.03131067030.48596849330.01709499790.01736851790.03914868840.040576863916.00225912540.90481910.170.135930.17485125850.308745949117.39393574440.4613665380.0171679570.01744264430.04116462340.042666341815.99948161040.8590129.890.155622.16715469040.308745949116.68462859030.43740359460.0172409160.01751677070.04386851590.045468874516.00128154120.814396

10.280.116246.39608640180.308745949117.99613575610.48596849330.01709499790.01736851790.03936389570.040799922215.94416054170.90481856049.60.135930.17485125850.308745949117.06963253030.4613665380.0171679570.01744264430.04344875890.045033804415.43298153760.85901249268.80.155622.16715469040.315269164916.07171939150.43740359460.0172409160.01751677070.0489101770.050694459414.87506097020.8143961927

70.11966093.58484391880.362819976215.37839522160.47407980610.01713001830.01740409860.05762398650.059726155712.58821843970.882683164880.1246024.17880025110.333447228316.1326651330.46868002840.01714606920.01742040640.05108704820.052950744613.71707837130.872629387390.1275977.08442344580.310764485316.77250079180.46501609430.01715701310.01743152530.04592625390.047601680414.79261318280.865807555100.13025927.05411727690.308745949117.29440601250.46112374550.01716868660.01744338550.04183354720.043359668515.83405007790.8585604402110.13255891.22471129660.308745949117.74995981210.45833622410.01717707680.01745191010.03844067730.03984302416.83427909050.8533703896120.13455860.15700163610.308745949118.14212243770.45591916190.01718437270.01745932270.03560578410.036904711717.80254568680.8488700922

buddhi's stage 1Wing Optimization Stage 1Group 2ParametersRequirementsAspect Ratio,A t/cBypass RatioTakeoff lengthLanding LengthVa maxVd(Mn)crit(Mn)crSigma(30000ft)Sigma(35000ft)MaxRge/kmCalculations120.12420001500721900.80.80.38130.29713704Wl/WtoMcr/Mo(Cl max)o (Cl us)o(Cl a)o(Cl use)o(Cdz)lsSigma cr.0.925920.97393781443.151.921.890.650.0182086840.3813AssumptionsW1/WTOS^-0.1RwType facClEAS sigalphagammaFlap Factora at CruiseNPP.Fac sLam.ChordGust SenTakeoff Mach nocos deltaDelta degWave Dr.F(Cdz)cr(Cd)co(Kv)o(Kv)crTau(clMn1)Tau(clMn2)0.990.615.51.150.48122.740.0213003.750.7010.30.9264062522.1202594040.02675678330.01687502140.02957464060.03392049030.03498753670.34518380880.2462942879

RESULTSCl maxCl usCl aCl useVa calcVa(W/S)o ld(W/S)o gtCor LL2.91817968751.77871.75090781250.602164062561.325270339461.32527033944352.31360102743832.49959119151499.5175904927Takeoff requirementsAccelerate StopSecond segment climbCruiseReversed thrust landingW/ST/W- 1stT/WT/W ratioTau(Cd)co/Clus T/WQm factT/W -1T/W-2Cl -1Cd-1L/D - 1 M * L/DT/W ratioLanding length40000.2304292810.23130658060.20227842620.85101142820.016627110.25585176590.19145724270.24939176860.25167338450.28959818640.01980932514.61928596611.69542877280.25585176591366.024770636645000.25342392910.25407583540.22606385630.84197375590.016627110.25859805630.17018421570.21331718260.23929903070.32579795970.020588749315.824077227812.65926178220