-----BEGIN PRIVACY-ENHANCED MESSAGE-----
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,
 R3jH+FTs/sAI0hGtnbXItH7RTMdok8gVWbEBEOHTzl7VZh/xP3dX4VV4Zg5Oyxk3
 6iyqChb7uXzZeoU7qZ8eGg==

<SEC-DOCUMENT>0001036848-04-000015.txt : 20040802
<SEC-HEADER>0001036848-04-000015.hdr.sgml : 20040802
<ACCEPTANCE-DATETIME>20040802133825
ACCESSION NUMBER:		0001036848-04-000015
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040730
FILED AS OF DATE:		20040802

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEROCENTURY CORP
		CENTRAL INDEX KEY:			0001036848
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-EQUIPMENT RENTAL & LEASING, NEC [7359]
		IRS NUMBER:				943263974
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1440 CHAPIN AVE STE 310
		CITY:			BURLINGAME
		STATE:			CA
		ZIP:			94010
		BUSINESS PHONE:		6503401888

	MAIL ADDRESS:	
		STREET 1:		1440 CHAPIN AVENUE SUITE 310
		CITY:			BURLINGAME
		STATE:			CA
		ZIP:			94010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AEROMAX INC
		DATE OF NAME CHANGE:	19970331

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ORR THOMAS W
		CENTRAL INDEX KEY:			0001077880
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13387
		FILM NUMBER:		04944532

	BUSINESS ADDRESS:	
		STREET 1:		1440 CHAPIN AVE
		STREET 2:		STE 310
		CITY:			BURLINGGAME
		STATE:			CA
		ZIP:			94010
		BUSINESS PHONE:		6503401880

	MAIL ADDRESS:	
		STREET 1:		1440 CHAPIN AVE
		STREET 2:		STE 310
		CITY:			BURLINGAME
		STATE:			CA
		ZIP:			94010
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>to-f430jl04_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-07-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001036848</issuerCik>
        <issuerName>AEROCENTURY CORP</issuerName>
        <issuerTradingSymbol>ACY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001077880</rptOwnerCik>
            <rptOwnerName>ORR THOMAS W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1440 CHAPIN AVE</rptOwnerStreet1>
            <rptOwnerStreet2>STE 310</rptOwnerStreet2>
            <rptOwnerCity>BURLINGAME</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94010</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-07-30</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2004-07-30</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Thomas W. Orr</signatureName>
        <signatureDate>2004-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----