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  <xs:element id="rtx_CommercialAerospaceFinancingArrangementsMember" abstract="true" name="CommercialAerospaceFinancingArrangementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="rtx_Notes4.450Due2038Member" abstract="true" name="Notes4.450Due2038Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="rtx_CollinsAerospaceSystemsMember" abstract="true" name="CollinsAerospaceSystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="rtx_Notes3.200Due2024Member" abstract="true" name="Notes3.200Due2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
</xs:schema>
