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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
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 xpwXpjnVmgcy6bjhPhztHA==

<SEC-DOCUMENT>0001255293-03-000001.txt : 20030731
<SEC-HEADER>0001255293-03-000001.hdr.sgml : 20030731
<ACCEPTANCE-DATETIME>20030731133803
ACCESSION NUMBER:		0001255293-03-000001
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030729
FILED AS OF DATE:		20030731

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CUBIC CORP /DE/
		CENTRAL INDEX KEY:			0000026076
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				951678055
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		9333 BALBOA AVE
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92123
		BUSINESS PHONE:		6192776780

	MAIL ADDRESS:	
		STREET 1:		PO BOX 85587
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92186-5587

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JACOBSEN DANIEL A
		CENTRAL INDEX KEY:			0001255293

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08931
		FILM NUMBER:		03814023

	BUSINESS ADDRESS:	
		STREET 1:		9333 BALBOA AVENUE
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92123
		BUSINESS PHONE:		8585052102
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2003-07-29</periodOfReport>


    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000026076</issuerCik>
        <issuerName>CUBIC CORP /DE/</issuerName>
        <issuerTradingSymbol>CUB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001255293</rptOwnerCik>
            <rptOwnerName>JACOBSEN DANIEL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>16515 CORTE PAULINA</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>POWAY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92064</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>



    <ownerSignature>
        <signatureName>Daniel Alan Jacobsen</signatureName>
        <signatureDate>2003-07-31</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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