-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WuoFV+MgKX/ULHL4X3EgO3SmCXcgp0pnHlrhtnxAV/Dc73vNfDjIpCk7y6hlkgdN
 A3STXzXm0z3oDMuqDHd8Og==

<SEC-DOCUMENT>0000109471-06-000011.txt : 20060410
<SEC-HEADER>0000109471-06-000011.hdr.sgml : 20060410
<ACCEPTANCE-DATETIME>20060410163153
ACCESSION NUMBER:		0000109471-06-000011
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060406
FILED AS OF DATE:		20060410
DATE AS OF CHANGE:		20060410

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEROSONIC CORP /DE/
		CENTRAL INDEX KEY:			0000109471
		STANDARD INDUSTRIAL CLASSIFICATION:	SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS [3812]
		IRS NUMBER:				741668471
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		1212 N HERCULES AVE
		CITY:			CLEARWATER
		STATE:			FL
		ZIP:			33765
		BUSINESS PHONE:		727-461-3000

	MAIL ADDRESS:	
		STREET 1:		1212 N HERCULES AVE
		CITY:			CLEARWATER
		STATE:			FL
		ZIP:			33765

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RUSSO CARMELO
		CENTRAL INDEX KEY:			0001250046

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11750
		FILM NUMBER:		06751154

	BUSINESS ADDRESS:	
		STREET 1:		1144 KINGSWAY LANE
		CITY:			TARPON SPRINGS
		STATE:			FL
		ZIP:			34688
		BUSINESS PHONE:		7274613000

	MAIL ADDRESS:	
		STREET 1:		1144 KINGSWAY LANE
		CITY:			TARPON SPRINGS
		STATE:			FL
		ZIP:			34688
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-04-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000109471</issuerCik>
        <issuerName>AEROSONIC CORP /DE/</issuerName>
        <issuerTradingSymbol>AIM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001250046</rptOwnerCik>
            <rptOwnerName>RUSSO CARMELO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1144 KINGSWAY LANE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TARPON SPRINGS</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>34688</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Incentive Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.29</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-04-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-04-06</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-04-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock par value $.40</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">(1) option granted under the Aerosonic Corporation 2004 Stock Incentive Plan scheduled to vest in 3 equal installments on the 1st, 2nd, and 3rd anniversaries of the date of grant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Carmelo Russo</signatureName>
        <signatureDate>2006-04-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----