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  <xs:element id="rklb_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateYearOneThroughTwo" abstract="false" name="DebtSecuritiesAvailableForSaleFairValueMaturityAllocatedAndSingleMaturityDateYearOneThroughTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_FairValueOfAssetsAndLiabilitiesMeasuredOnNonRecurringBasisLineItems" abstract="true" name="FairValueOfAssetsAndLiabilitiesMeasuredOnNonRecurringBasisLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="rklb_CashAndCashEquivalentAtFairValueDisclosureAbstract" abstract="true" name="CashAndCashEquivalentAtFairValueDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="rklb_OtherNonCurrentLiabilitiesAtFairValueDisclosureAbstract" abstract="true" name="OtherNonCurrentLiabilitiesAtFairValueDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="rklb_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityFairValueAdjustment" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityFairValueAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_FairValueMeasurementsTable" abstract="true" name="FairValueMeasurementsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="rklb_ConvertibleSeniorNotesMember" abstract="true" name="ConvertibleSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_FairValueMeasurementsLineItems" abstract="true" name="FairValueMeasurementsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="rklb_MachineryEquipmentVehiclesAndOfficeFurnitureMember" abstract="true" name="MachineryEquipmentVehiclesAndOfficeFurnitureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_LaunchSiteAssetsMember" abstract="true" name="LaunchSiteAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_ConstructionInProcessMember" abstract="true" name="ConstructionInProcessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_DevelopedTechnologyMember" abstract="true" name="DevelopedTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_CapitalizedSoftwareMember" abstract="true" name="CapitalizedSoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_InProcessTechnologyMember" abstract="true" name="InProcessTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_IndentureAndNotesMember" abstract="true" name="IndentureAndNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_CappedCallTransactionsMember" abstract="true" name="CappedCallTransactionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_EffectiveDateDrawMember" abstract="true" name="EffectiveDateDrawMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_BlanketLienDrawMember" abstract="true" name="BlanketLienDrawMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_March2025DrawMember" abstract="true" name="March2025DrawMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_FourPointTwoFiveZeroPercentConvertibleSeniorNotesMember" abstract="true" name="FourPointTwoFiveZeroPercentConvertibleSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_TrinityMasterEquipmentFinancingAgreementMember" abstract="true" name="TrinityMasterEquipmentFinancingAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_DebtInstrumentConvertibleTermsOfConversionAxis" abstract="true" name="DebtInstrumentConvertibleTermsOfConversionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="rklb_DebtInstrumentConvertibleTermsOfConversionDomain" abstract="true" name="DebtInstrumentConvertibleTermsOfConversionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_DebtConversionTermsOneMember" abstract="true" name="DebtConversionTermsOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_DebtConversionTermsTwoMember" abstract="true" name="DebtConversionTermsTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_LineOfCreditConditionAxis" abstract="true" name="LineOfCreditConditionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="rklb_LineOfCreditConditionDomain" abstract="true" name="LineOfCreditConditionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_LineOfCreditCondition1Member" abstract="true" name="LineOfCreditCondition1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_LineOfCreditCondition2Member" abstract="true" name="LineOfCreditCondition2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_ConversionPricePercent" abstract="false" name="ConversionPricePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="rklb_DebtInstrumentConvertibleThresholdConsecutiveBusinessDays" abstract="false" name="DebtInstrumentConvertibleThresholdConsecutiveBusinessDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="rklb_MeasurementPeriodLessThan" abstract="false" name="MeasurementPeriodLessThan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="rklb_DebtConversionConversionInstrumentRate" abstract="false" name="DebtConversionConversionInstrumentRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="rklb_InitialCapPrice" abstract="false" name="InitialCapPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="rklb_OptionIndexedToIssuersEquityPremium" abstract="false" name="OptionIndexedToIssuersEquityPremium" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="rklb_TermLoanAdvancesAggregateAmount" abstract="false" name="TermLoanAdvancesAggregateAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_LineOfCreditFacilityMaximumBorrowingLimit" abstract="false" name="LineOfCreditFacilityMaximumBorrowingLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_LineOfCreditFacilityNumberOfAdvances" abstract="false" name="LineOfCreditFacilityNumberOfAdvances" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="rklb_LineOfCreditFacilityMaximumBorrowingEachDrawLimit" abstract="false" name="LineOfCreditFacilityMaximumBorrowingEachDrawLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_LineOfCreditFacilityAfterTheEffectivePeriod" abstract="false" name="LineOfCreditFacilityAfterTheEffectivePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="rklb_LoanAgreementMonthlyPaymentRate" abstract="false" name="LoanAgreementMonthlyPaymentRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="rklb_TermChargeOnRepaymentOfDebt" abstract="false" name="TermChargeOnRepaymentOfDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_SeriesAConvertibleParticipatingPreferredStockMember" abstract="true" name="SeriesAConvertibleParticipatingPreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_TheEquatorialTrustMember" abstract="true" name="TheEquatorialTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_AtTheMarketOfferingMember" abstract="true" name="AtTheMarketOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_MarchATMEquityOfferingMember" abstract="true" name="MarchATMEquityOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_EquityDistributionAgreementMember" abstract="true" name="EquityDistributionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_SeptemberATMEquityOfferingMember" abstract="true" name="SeptemberATMEquityOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_BeneficialOwnershipPercentageMinimum" abstract="false" name="BeneficialOwnershipPercentageMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="rklb_MaximumNumberOfBoardMembersBeforeTriggeringEvent" abstract="false" name="MaximumNumberOfBoardMembersBeforeTriggeringEvent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="rklb_BeneficialOwnershipRightToElectPercentage" abstract="false" name="BeneficialOwnershipRightToElectPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="rklb_A2021PlanMember" abstract="true" name="A2021PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_TwoThousandThirteenPlanMember" abstract="true" name="TwoThousandThirteenPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_A2021EmployeeStockPurchasePlanMember" abstract="true" name="A2021EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAllowableUnderThePlan" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAllowableUnderThePlan" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="rklb_ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveOfferingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveOfferingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="rklb_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriods" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriods" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="rklb_ShareBasedCompensationArrangementBySharebasedPaymentAwardPurchasePeriod" abstract="false" name="ShareBasedCompensationArrangementBySharebasedPaymentAwardPurchasePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="rklb_LeaseRemainingLeaseTerm" abstract="false" name="LeaseRemainingLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="rklb_CommonStockVotesPerShare" abstract="false" name="CommonStockVotesPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="rklb_StockOptionsAndRestrictedStockUnitsMember" abstract="true" name="StockOptionsAndRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_SharesUnderlyingOurConvertibleSeniorNotesMember" abstract="true" name="SharesUnderlyingOurConvertibleSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_MynaricAcquisitionMember" abstract="true" name="MynaricAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_MotivPurchaseAgreementMember" abstract="true" name="MotivPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_SaleOfStockConsiderationExpectedProceeds" abstract="false" name="SaleOfStockConsiderationExpectedProceeds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_BusinessAcquisitionPurchasePriceAllocationAmount" abstract="false" name="BusinessAcquisitionPurchasePriceAllocationAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="rklb_SirPeterBeckMember" abstract="true" name="SirPeterBeckMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="rklb_AdamSpiceMember" abstract="true" name="AdamSpiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
