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  <xs:element name="VesselRepairAndMaintenanceExpenses" id="rbne_VesselRepairAndMaintenanceExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="LubricantExpenses" id="rbne_LubricantExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="VoyageExpensesPolicyTextBlock" id="rbne_VoyageExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DigitalAssetsPolicyTextBlock" id="rbne_DigitalAssetsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TransactionsBetweenEntitiesUnderCommonControlPolicyTextBlock" id="rbne_TransactionsBetweenEntitiesUnderCommonControlPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="InsuranceClaimsPolicyPolicyTextBlock" id="rbne_InsuranceClaimsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="CastorShipsSAMember" id="rbne_CastorShipsSAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SaleAndPurchaseBrokerageCommission" id="rbne_SaleAndPurchaseBrokerageCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="RelatedPartyTransactionQuarterlyManagementFee" id="rbne_RelatedPartyTransactionQuarterlyManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="RelatedPartyTransactionTermOfAgreement" id="rbne_RelatedPartyTransactionTermOfAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionRenewalTermOfAgreement" id="rbne_RelatedPartyTransactionRenewalTermOfAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionFixedDailyFee" id="rbne_RelatedPartyTransactionFixedDailyFee" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyAdministrationFees" id="rbne_RelatedPartyAdministrationFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="MinimumValueOfSharesIssuedByEntityEngagedInMaritimeIndustry" id="rbne_MinimumValueOfSharesIssuedByEntityEngagedInMaritimeIndustry" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="RelatedPartyTransactionCapitalRaisingCommissionRate" id="rbne_RelatedPartyTransactionCapitalRaisingCommissionRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionManagementRecoveryFeeMultiplier" id="rbne_RelatedPartyTransactionManagementRecoveryFeeMultiplier" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="FundingPeriodForAdvanceToCoverVesselDailyOperatingCosts" id="rbne_FundingPeriodForAdvanceToCoverVesselDailyOperatingCosts" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionManagementTerminationFeeMultiplier" id="rbne_RelatedPartyTransactionManagementTerminationFeeMultiplier" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" id="rbne_RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionSaleAndPurchaseCommission" id="rbne_RelatedPartyTransactionSaleAndPurchaseCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="RelatedPartyTransactionCapitalRaisingCommission" id="rbne_RelatedPartyTransactionCapitalRaisingCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="RelatedPartyTransactionCommissionRate" id="rbne_RelatedPartyTransactionCommissionRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RelatedPartyTransactionCommissions" id="rbne_RelatedPartyTransactionCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="ShipManagementAgreementsMember" id="rbne_ShipManagementAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WorkingCapitalGuaranteeDepositsMember" id="rbne_WorkingCapitalGuaranteeDepositsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="WorkingCapitalGuaranteeAdvancesMember" id="rbne_WorkingCapitalGuaranteeAdvancesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="MasterManagementAgreementMember" id="rbne_MasterManagementAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OutstandingExpensesRelatedToSpinoffAndReimbursement" id="rbne_OutstandingExpensesRelatedToSpinoffAndReimbursement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="VesselsMember" id="rbne_VesselsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="InvestmentInCryptoAssetsAbstract" id="rbne_InvestmentInCryptoAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PercentageOfLongTermCashReservesTargetedForAllocationToBitcoin" id="rbne_PercentageOfLongTermCashReservesTargetedForAllocationToBitcoin" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="CryptoAssetNumberOfUnitsHeld" id="rbne_CryptoAssetNumberOfUnitsHeld" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="NonExecutiveDirectorMember" id="rbne_NonExecutiveDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
</xs:schema>
