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  <xs:element id="kitt_DebtConversion1Member" abstract="true" name="DebtConversion1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DebtConversion2Member" abstract="true" name="DebtConversion2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ATWSpecialSituationsILLCMember" abstract="true" name="ATWSpecialSituationsILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ATWSpecialSituationsIILLCMember" abstract="true" name="ATWSpecialSituationsIILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ATWSpecialSituationsIIILLCMember" abstract="true" name="ATWSpecialSituationsIIILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_MaterialImpactIIL.P.Member" abstract="true" name="MaterialImpactIIL.P.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DebtInstrumentAccordionFeatureIncreaseLimit" abstract="false" name="DebtInstrumentAccordionFeatureIncreaseLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_DebtInstrumentConvertibleConversionPriceFloor" abstract="false" name="DebtInstrumentConvertibleConversionPriceFloor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_DebtInstrumentDiscountPercentage" abstract="false" name="DebtInstrumentDiscountPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="kitt_DebtInstrumentConvertibleWrittenNoticeDays" abstract="false" name="DebtInstrumentConvertibleWrittenNoticeDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_DebtInstrumentIncrementalLoanAmount" abstract="false" name="DebtInstrumentIncrementalLoanAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_DebtInstrumentIncrementalLoanOptionPeriod" abstract="false" name="DebtInstrumentIncrementalLoanOptionPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="kitt_DebtInstrumentInterestEligibleForCapitalizationPercentage" abstract="false" name="DebtInstrumentInterestEligibleForCapitalizationPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_DebtInstrumentMaturityClosingPeriod" abstract="false" name="DebtInstrumentMaturityClosingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_DebtInstrumentCovenantDebtToNetWorthRatioMaximum" abstract="false" name="DebtInstrumentCovenantDebtToNetWorthRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="kitt_DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantDebtServiceCoverageRatioMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="kitt_NotesPayableExitFeeCredit" abstract="false" name="NotesPayableExitFeeCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_LesseeOperatingLeaseNumberOfRenewalOptions" abstract="false" name="LesseeOperatingLeaseNumberOfRenewalOptions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_FixedLeaseCost" abstract="false" name="FixedLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_MIFFamilyIrrevocableTrustMember" abstract="true" name="MIFFamilyIrrevocableTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SLSFamilyIrrevocableTrustMember" abstract="true" name="SLSFamilyIrrevocableTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ATWMember" abstract="true" name="ATWMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SecuritiesPurchaseAgreementMember" abstract="true" name="SecuritiesPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SecuritiesPurchaseAgreementAdditionalSharesMember" abstract="true" name="SecuritiesPurchaseAgreementAdditionalSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ConversionOfSeriesBToCommonMember" abstract="true" name="ConversionOfSeriesBToCommonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ConversionOfSeriesCToCommonMember" abstract="true" name="ConversionOfSeriesCToCommonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_PreferredStockStatedValuePerShare" abstract="false" name="PreferredStockStatedValuePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_PreferredStockStatedValuePerShareIncludingCapitalizedDividends" abstract="false" name="PreferredStockStatedValuePerShareIncludingCapitalizedDividends" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_PreferredStockConvertibleConversionPriceFloor" abstract="false" name="PreferredStockConvertibleConversionPriceFloor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_PreferredStockConvertibleThresholdPercentageOfStockPriceTrigger" abstract="false" name="PreferredStockConvertibleThresholdPercentageOfStockPriceTrigger" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_PreferredStockConvertibleThresholdConsecutiveTradingDays" abstract="false" name="PreferredStockConvertibleThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_PreferredStockConversionTriggeringEventDebtDefault" abstract="false" name="PreferredStockConversionTriggeringEventDebtDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_SaleOfStockCommonStockWarrantsPercentageOfPurchasePrice" abstract="false" name="SaleOfStockCommonStockWarrantsPercentageOfPurchasePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_SaleOfStockNumberOfClosingTransactions" abstract="false" name="SaleOfStockNumberOfClosingTransactions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_SaleOfStockPurchaseAgreementTerm" abstract="false" name="SaleOfStockPurchaseAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="kitt_SaleOfStockPurchaseAgreementLockUpPeriod" abstract="false" name="SaleOfStockPurchaseAgreementLockUpPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="kitt_WarrantOrRightOutstandingCovenantPercentageOwnershipMaximum" abstract="false" name="WarrantOrRightOutstandingCovenantPercentageOwnershipMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_AtTheMarketOfferingMember" abstract="true" name="AtTheMarketOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DerivativeInstrumentStockPriceThresholdAxis" abstract="true" name="DerivativeInstrumentStockPriceThresholdAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="kitt_DerivativeInstrumentStockPriceThresholdDomain" abstract="true" name="DerivativeInstrumentStockPriceThresholdDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DerivativeInstrumentStockPriceThresholdOneMember" abstract="true" name="DerivativeInstrumentStockPriceThresholdOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DerivativeInstrumentStockPriceThresholdTwoMember" abstract="true" name="DerivativeInstrumentStockPriceThresholdTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DerivativeInstrumentStockPriceThresholdThreeMember" abstract="true" name="DerivativeInstrumentStockPriceThresholdThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SaleOfStockRemainingAvailableAmount" abstract="false" name="SaleOfStockRemainingAvailableAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_SaleOfStockAggregateOfferingPriceMaximum" abstract="false" name="SaleOfStockAggregateOfferingPriceMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_AdditionalShareOfCommonStock" abstract="false" name="AdditionalShareOfCommonStock" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodStockPriceTrigger" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodStockPriceTrigger" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDays" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdConsecutiveTradingDays" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilitySharesPercentage" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilitySharesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_EarnoutTargetWasAchieved" abstract="false" name="EarnoutTargetWasAchieved" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_PublicWarrantsMember" abstract="true" name="PublicWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_PrivateWarrantsMember" abstract="true" name="PrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SPAWarrantsMember" abstract="true" name="SPAWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DebentureWarrantsMember" abstract="true" name="DebentureWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_ClassOfWarrantsOrRightPublicWarrantsShares" abstract="false" name="ClassOfWarrantsOrRightPublicWarrantsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodMinimumPriorWrittenNoticeRequiredOfRedemption" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodMinimumPriorWrittenNoticeRequiredOfRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_CommonStockExceedsPrice" abstract="false" name="CommonStockExceedsPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDayPeriod" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodThresholdTradingDayPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodDaysPriorToRedemption" abstract="false" name="DerivativeInstrumentContingentConsiderationLiabilityEarnoutPeriodDaysPriorToRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="kitt_ClassOfWarrantsOrRightPrivateWarrantsShares" abstract="false" name="ClassOfWarrantsOrRightPrivateWarrantsShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kitt_RiskFreeRate" abstract="false" name="RiskFreeRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_ImpliedVolatility" abstract="false" name="ImpliedVolatility" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_WarrantsAndRightsOutstandingRemainingTerm" abstract="false" name="WarrantsAndRightsOutstandingRemainingTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="kitt_WarrantExercisableShare" abstract="false" name="WarrantExercisableShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kitt_AggregateShares" abstract="false" name="AggregateShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kitt_CommonStockSharesIssuableLimitPercentage" abstract="false" name="CommonStockSharesIssuableLimitPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_RestrictedAndPerformanceStockUnitsMember" abstract="true" name="RestrictedAndPerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_EarnoutSharesMember" abstract="true" name="EarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SeatrepidEarnoutSharesMember" abstract="true" name="SeatrepidEarnoutSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_SeriesABAndCConvertiblePreferredStockMember" abstract="true" name="SeriesABAndCConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DividendsPreferredStockCapitalized" abstract="false" name="DividendsPreferredStockCapitalized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_AcquiredIntangibleAssetsFairValueMeasurementMeasurementInput" abstract="false" name="AcquiredIntangibleAssetsFairValueMeasurementMeasurementInput" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="kitt_PreferredStockStrikePrice" abstract="false" name="PreferredStockStrikePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="kitt_NovemberConvertibleDebenturesMember" abstract="true" name="NovemberConvertibleDebenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_DerivativeLiabilityMember" abstract="true" name="DerivativeLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_WarrantLiability" abstract="false" name="WarrantLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_WarrantLiabilityMember" abstract="true" name="WarrantLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="kitt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExchange" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExchange" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kitt_November2024DebenturesMember" abstract="true" name="November2024DebenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
