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  <xsd:element id="lmt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesCustomerContractualObligations" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesCustomerContractualObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_BuyInContractMember" name="BuyInContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_CapitalizedInternalUseSoftwareAccumulatedAmortization" name="CapitalizedInternalUseSoftwareAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lmt_CapitalizedInternalUseSoftwareNet" name="CapitalizedInternalUseSoftwareNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lmt_ChangeInProjectedBenefitObligationsDueToChangeInDiscountRate" name="ChangeInProjectedBenefitObligationsDueToChangeInDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_CommingledEquityFundsMember" name="CommingledEquityFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_CommingledFundsMember" name="CommingledFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_CommonStockRepurchasedWithCashDuringPeriodShares" name="CommonStockRepurchasedWithCashDuringPeriodShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_ContractLossIncurredAfterTax" name="ContractLossIncurredAfterTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_ContractLossIncurredEarningsPerShare" name="ContractLossIncurredEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_ContractLossIncurredGross" name="ContractLossIncurredGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_ContractPaymentsReceivedToDate" name="ContractPaymentsReceivedToDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lmt_ContractValue" name="ContractValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_CostReimbursableContractMember" name="CostReimbursableContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_CounterclaimForDamagesSought" name="CounterclaimForDamagesSought" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DebtInstrumentMaturityDateYear" name="DebtInstrumentMaturityDateYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_DeferredTaxAssetsContractAccountingMethods" name="DeferredTaxAssetsContractAccountingMethods" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lmt_DefinedBenefitPlanActuarialLossRelatedToChangeInLongevityAssumption" name="DefinedBenefitPlanActuarialLossRelatedToChangeInLongevityAssumption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTax" name="DefinedBenefitPlanAmortizationOfNetGainsLossesNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYearNetOfTax" name="DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYearNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostActualReturnonPlanAssets" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostActualReturnonPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_DefinedBenefitPlanCommingledEquityFundsMember" name="DefinedBenefitPlanCommingledEquityFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanNumberOfEmployees" name="DefinedBenefitPlanNumberOfEmployees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanNumberOfPurchasedInsuranceCompanyContractCoveringOutstandingDefinedbenefitPensionObligations" name="DefinedBenefitPlanNumberOfPurchasedInsuranceCompanyContractCoveringOutstandingDefinedbenefitPensionObligations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanPlanAssetsCashPaymentForContract" name="DefinedBenefitPlanPlanAssetsCashPaymentForContract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanPlanAssetsReimbursableFutureBenefitPayments" name="DefinedBenefitPlanPlanAssetsReimbursableFutureBenefitPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_DefinedBenefitPlanPlanWithBenefitObligationsEqualToPlanAssets" name="DefinedBenefitPlanPlanWithBenefitObligationsEqualToPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lmt_DepreciationAndAmortizationIncludingDiscontinuedOperations" name="DepreciationAndAmortizationIncludingDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_DistributedEnergySolutionsMember" name="DistributedEnergySolutionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_EADGETMember" name="EADGETMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationChangeinTaxAccountingMethodAmount" name="EffectiveIncomeTaxRateReconciliationChangeinTaxAccountingMethodAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationChangeinTaxAccountingMethodPercent" name="EffectiveIncomeTaxRateReconciliationChangeinTaxAccountingMethodPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncome" name="EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePercent" name="EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePriorAndCurrentYears" name="EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePriorAndCurrentYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxesPerShare" name="EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxesPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedRemainingPeriodForRecognition" name="EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedRemainingPeriodForRecognition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EquityMethodInvestmentOtherThanTemporaryImpairmentEarningsPerShare" name="EquityMethodInvestmentOtherThanTemporaryImpairmentEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_EquityMethodInvestmentOtherThanTemporaryImpairmentNetOfTax" name="EquityMethodInvestmentOtherThanTemporaryImpairmentNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_EstimatedCumulativeLosses" name="EstimatedCumulativeLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_FThirtyFiveProgramMember" name="FThirtyFiveProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_FasCasOperatingAdjustment" name="FasCasOperatingAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_FasCasPensionAdjustment" name="FasCasPensionAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_FinancialAccountingStandardsNonOperatingPensionExpense" name="FinancialAccountingStandardsNonOperatingPensionExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FiveYearRevolvingCreditFacilityMember" name="FiveYearRevolvingCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FourPointFiveZeroPercentageAndSixPointOneFivePercentDueTwentyThirtySixMember" name="FourPointFiveZeroPercentageAndSixPointOneFivePercentDueTwentyThirtySixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FourPointSevenZeroPercentNotesDueTwentyFortySixMember" name="FourPointSevenZeroPercentNotesDueTwentyFortySixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FourPointTwoFivePercentNotesDueTwoThousandNineteenMember" name="FourPointTwoFivePercentNotesDueTwoThousandNineteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FourPointZeroNinePercentNotesDueTwentyFiftyTwoMember" name="FourPointZeroNinePercentNotesDueTwentyFiftyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_FourPointZeroSevenPercentNotesDueTwoThousandFortyTwoMember" name="FourPointZeroSevenPercentNotesDueTwoThousandFortyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_GainLossOnSaleOfPropertiesAfterTax" name="GainLossOnSaleOfPropertiesAfterTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_GainLossOnSaleOfPropertiesAfterTaxPerShareAmount" name="GainLossOnSaleOfPropertiesAfterTaxPerShareAmount" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_HalfOfPSUsGrantedInPeriodMember" name="HalfOfPSUsGrantedInPeriodMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_IncreaseDecreaseInNetIncomeLoss" name="IncreaseDecreaseInNetIncomeLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_IncreaseDecreaseInNetIncomeLossPerShareDiluted" name="IncreaseDecreaseInNetIncomeLossPerShareDiluted" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_IncreaseDecreaseInOperatingIncomeLoss" name="IncreaseDecreaseInOperatingIncomeLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_InternationalMember" name="InternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_InvestmentsMeasuredAtFairValueMember" name="InvestmentsMeasuredAtFairValueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_InvestmentsMeasuredAtNetAssetValueMember" name="InvestmentsMeasuredAtNetAssetValueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_IrrevocableGroupAnnuityContractMember" name="IrrevocableGroupAnnuityContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_LM2100ProjectMember" name="LM2100ProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_LeidosHoldingsInc.Member" name="LeidosHoldingsInc.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_LettersOfCreditSuretyBondsAndThirdPartyGuarantees" name="LettersOfCreditSuretyBondsAndThirdPartyGuarantees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lmt_LineOfCreditOptionalRequestForAdditionalBorrowings" name="LineOfCreditOptionalRequestForAdditionalBorrowings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_LitigationReserveTransferredAsPartOfDivestiture" name="LitigationReserveTransferredAsPartOfDivestiture" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_LitigationSettlementIndemnificationOfLiabilitiesAssumedPercentageInExcessOfMaximumReserve" name="LitigationSettlementIndemnificationOfLiabilitiesAssumedPercentageInExcessOfMaximumReserve" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_LitigationSettlementIndemnificationOfLiabilitiesAssumedPercentageInExcessOfReserve" name="LitigationSettlementIndemnificationOfLiabilitiesAssumedPercentageInExcessOfReserve" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_LitigationSettlementMaximumReserve" name="LitigationSettlementMaximumReserve" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_LossContingencyPeriodOfBenchTrial" name="LossContingencyPeriodOfBenchTrial" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_MissilesAndFireControlMember" name="MissilesAndFireControlMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_NewYorkMetropolitanTransportationAuthorityMember" name="NewYorkMetropolitanTransportationAuthorityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_NumberOfCommercialSatelliteProgramsWithPerformanceIssues" name="NumberOfCommercialSatelliteProgramsWithPerformanceIssues" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="lmt_NumberOfEntitiesInvolvedInLitigation" name="NumberOfEntitiesInvolvedInLitigation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OnePointEightFivePercentNotesDueTwentyEighteenMember" name="OnePointEightFivePercentNotesDueTwentyEighteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OperationsConsolidationMember" name="OperationsConsolidationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_OrganizationPolicyTextBlock" name="OrganizationPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherCommingledFundsMember" name="OtherCommingledFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_OtherComprehensiveIncomeLossDifferenceBetweenInsurancePaymentAndPensionObligationsFunded" name="OtherComprehensiveIncomeLossDifferenceBetweenInsurancePaymentAndPensionObligationsFunded" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansExcludingDiscontinuedOperationsNetOfTax" name="OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansExcludingDiscontinuedOperationsNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherFixedIncomeInvestmentsMember" name="OtherFixedIncomeInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherGovernmentsAndCommercialMember" name="OtherGovernmentsAndCommercialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherNotesFourPointEightFivePercentToNinePointOneThreePercentDueTwoThousandTwentyTwoToTwoThousandFortyOneMember" name="OtherNotesFourPointEightFivePercentToNinePointOneThreePercentDueTwoThousandTwentyTwoToTwoThousandFortyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherRegionMember" name="OtherRegionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherSecuritiesMember" name="OtherSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_OtherUnallocatedExpensesNet" name="OtherUnallocatedExpensesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_OtherUnallocatedNetMember" name="OtherUnallocatedNetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_PensionExpenseUnderUSGovernmentCostAccountingStandards" name="PensionExpenseUnderUSGovernmentCostAccountingStandards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_PercentageOfGuaranteesThatRelateToGuaranteesOfContractualPerformanceOfJointVentures" name="PercentageOfGuaranteesThatRelateToGuaranteesOfContractualPerformanceOfJointVentures" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_ProgramNetSalesAsPercentOfTotalNetSales" name="ProgramNetSalesAsPercentOfTotalNetSales" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_QualifiedDefinedBenefitPlanNetPeriodicBenefitCostExpectedInNextFiscalYear" name="QualifiedDefinedBenefitPlanNetPeriodicBenefitCostExpectedInNextFiscalYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_QuarterlyFinancialInformationLineItems" name="QuarterlyFinancialInformationLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_QuarterlyFinancialInformationTable" name="QuarterlyFinancialInformationTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ReceivablesNetMember" name="ReceivablesNetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_RemainingHalfOfPSUsGrantedInPeriodMember" name="RemainingHalfOfPSUsGrantedInPeriodMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_RestructuringChargesNetOfTax" name="RestructuringChargesNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_RestructuringChargesPerShare" name="RestructuringChargesPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_RevenueFromContractWithCustomerNumberOfContractTypes" name="RevenueFromContractWithCustomerNumberOfContractTypes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_RotaryAndMissionSystemsMember" name="RotaryAndMissionSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_SalesRelatedToCustomerContractualObligationsToDate" name="SalesRelatedToCustomerContractualObligationsToDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardConversionRateOfTargetAward" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardConversionRateOfTargetAward" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_ShareRepurchaseProgramAdditionalAuthorizedAmount" name="ShareRepurchaseProgramAdditionalAuthorizedAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_ShareholdersEquityLineItems" name="ShareholdersEquityLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ShareholdersEquityTable" name="ShareholdersEquityTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_SharesOfOurStockHeldInDefinedContributionPlansWeSponsor" name="SharesOfOurStockHeldInDefinedContributionPlansWeSponsor" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lmt_SignificantAccountingPoliciesLineItems" name="SignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_SignificantAccountingPoliciesTable" name="SignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_SikorskyAircraftCorporationMember" name="SikorskyAircraftCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_SpaceMember" name="SpaceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_SpaceSystemsMember" name="SpaceSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_StockBasedAwardsAndESOPActivity" name="StockBasedAwardsAndESOPActivity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lmt_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefitCurrent" name="TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefitCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefitDeferred" name="TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefitDeferred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_TaxCutsAndJobsActOf2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit" name="TaxCutsAndJobsActOf2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lmt_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefitEffectOnEarningsPerShare" name="TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefitEffectOnEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ThreePointEightZeroPercentNotesDueTwentyFortyFiveMember" name="ThreePointEightZeroPercentNotesDueTwentyFortyFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ThreePointFiveFivePercentNotesDueTwentyTwentySixMember" name="ThreePointFiveFivePercentNotesDueTwentyTwentySixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ThreePointOneZeroPercentNotesDueTwentyTwentyThreeMember" name="ThreePointOneZeroPercentNotesDueTwentyTwentyThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ThreePointSixZeroPercentNotesDueTwentyThirtyFiveMember" name="ThreePointSixZeroPercentNotesDueTwentyThirtyFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_ThreePointThreeFivePercentNotesDueTwoThousandTwentyOneMember" name="ThreePointThreeFivePercentNotesDueTwoThousandTwentyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_TimePeriodEnvironmentalCostsAndRecoveryOfEnvironmentalCostsAreProjectedOver" name="TimePeriodEnvironmentalCostsAndRecoveryOfEnvironmentalCostsAreProjectedOver" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_TwoPointFiveZeroPercentNotesDueTwentyTwentyMember" name="TwoPointFiveZeroPercentNotesDueTwentyTwentyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_TwoPointNineZeroPercentNotesDueTwentyTwentyFiveMember" name="TwoPointNineZeroPercentNotesDueTwentyTwentyFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_USGovernmentMember" name="USGovernmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_UnallocatedItemsAbstract" name="UnallocatedItemsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lmt_UnallocatedNet" name="UnallocatedNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_UnitedLaunchAllianceMember" name="UnitedLaunchAllianceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_UnitedStatesCommercialAndOtherMember" name="UnitedStatesCommercialAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lmt_WarriorCapabilitySustainmentProgramMember" name="WarriorCapabilitySustainmentProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
