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                                                                    Exhibit 10.7


                             STOCK PURCHASE WARRANT

         This Warrant is issued as of this 26th day of December, 2001, by
ENVIRONMENTAL TECTONICS CORPORATION, a Pennsylvania corporation (the "Company"),
to ETC ASSET MANAGEMENT, LLC, an Alabama limited liability company (ETC ASSET
MANAGEMENT, LLC and any subsequent assignee or transferee hereof are hereinafter
referred to collectively as "Holder" or "Holders").

                                   AGREEMENT:

         1. Issuance of Warrant; Term. The Company hereby grants to Holder the
right to purchase 332,820 shares of the Company's common stock, par value $.05
per share (the "Common Stock"). The shares of Common Stock issuable upon
exercise of this Warrant are hereinafter referred to as the "Shares." This
Warrant shall be exercisable at any time and from time to time from the date
hereof until March 27, 2004.

         2. Exercise Price. The exercise price (the "Exercise Price") per share
for which all or any of the Shares may be purchased pursuant to the terms of
this Warrant shall be Fifty Cents ($.50).

         3. Exercise. This Warrant may be exercised by the Holder hereof (but
only on the conditions hereinafter set forth) as to all or any increment or
increments of one hundred (100) Shares (or the balance of the Shares if less
than such number), upon delivery of written notice of intent to exercise to the
Company at the following address: 125 James Way, Southampton, PA 18966-3877 or
such other address as the Company shall designate in a written notice to the
Holder hereof, together with this Warrant and payment to the Company of the
aggregate Exercise Price of the Shares so purchased. The Exercise Price shall be
payable, at the option of the Holder, (i) by certified or bank check, (ii) by
the surrender of a portion of this Warrant where the Shares subject to the
portion of this Warrant that is surrendered have a Fair Market Value (as defined
in Section 4(c) below) equal to the aggregate Exercise Price. Upon exercise of
this Warrant as aforesaid, the Company shall as promptly as practicable, and in
any event within fifteen (15) days thereafter, execute and deliver to the Holder
of this Warrant a certificate or certificates for the total number of whole
Shares for which this Warrant is being exercised in such names and denominations
as are requested by such Holder. If this Warrant shall be exercised with respect
to less than all of the Shares, the Holder shall be entitled to receive a new
Warrant covering the number of Shares in respect of which this Warrant shall not
have been exercised, which new Warrant shall in all other respects be identical
to this Warrant. The Company covenants and agrees that it will pay when due any
and all state and federal issue taxes which may be payable in respect of the
issuance of this Warrant or the issuance of any Shares upon exercise of this
Warrant.

         4. Covenants and Conditions. The above provisions are subject to the
following:

            (a) Neither this Warrant nor the Shares have been registered under
the Securities Act of 1933, as amended ("Securities Act") or any state
securities laws ("Blue Sky Laws"). The shares issued upon exercise of this
warrant shall be "restricted securities" within the meaning of Rule 144 as


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promulgated under the Securities Act by the Securities and Exchange Commission
and the certificates representing such Shares shall bear substantially the
following legend:

         THE SHARES OF COMMON STOCK REPRESENTED BY THIS CERTIFICATE HAVE NOT
         BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
         "ACT"), OR ANY APPLICABLE STATE SECURITIES LAW AND MAY NOT BE
         TRANSFERRED UNTIL (I) A REGISTRATION STATEMENT UNDER THE ACT AND SUCH
         APPLICABLE STATE SECURITIES LAWS SHALL HAVE BECOME EFFECTIVE WITH
         REGARD THERETO, OR (II) IN THE OPINION OF COUNSEL ACCEPTABLE TO THE
         COMPANY, REGISTRATION UNDER SUCH ACT AND SUCH APPLICABLE STATE
         SECURITIES LAWS IS NOT REQUIRED IN CONNECTION WITH SUCH PROPOSED
         TRANSFER.

The Holder hereof and the Company agree to execute such other documents and
instruments as counsel for the Company reasonably deems necessary to effect the
compliance of the issuance of this Warrant and any shares of Common Stock issued
upon exercise hereof with applicable federal and state securities laws.

            (b) The Company covenants and agrees that all Shares which may be
issued upon exercise of this Warrant will, upon issuance and payment therefor,
be legally and validly issued and outstanding, fully paid and nonassessable,
free from all taxes, liens, charges and preemptive rights, if any, with respect
thereto or to the issuance thereof. The Company shall at all times reserve and
keep available for issuance upon the exercise of this Warrant such number of
authorized but unissued shares of Common Stock as will be sufficient to permit
the exercise in full of this Warrant.

            (c) The Company covenants and agrees that it shall not sell any
shares of the Company's capital stock at a price per share below the Fair Market
Value of such shares, without the prior written consent of the Holder hereof
except pursuant to exercise of (i) options outstanding as of March 27, 1997, or
(ii) options granted subsequent to March 27, 1997, provided, however, the
exercise price of such options is no less than the Fair Market Value of the
Common Stock at the date of the grant. In the event that the Company sells
shares of the Company's capital stock in violation of this Section 4(c), the
number of shares issuable upon exercise of this Warrant shall be equal to the
product obtained by multiplying the number of shares issuable pursuant to this
Warrant prior to such sale by the quotient obtained by dividing (i) the Fair
Market Value of the shares issued in violation of this Section 4(c) by (ii) the
price at which such shares were sold.

            (d) "Fair Market Value" per share of Common Stock shall mean (i) in
the case of a security listed or admitted to trading on any securities exchange,
the last reported sale price, regular way (as determined in accordance with the
practices of such exchange), on such day, or if no sale takes place on such day,
the average of the closing bid and asked prices on such day (and in the case of
a security traded on more than one national securities exchange, at such price
or such average, upon the exchange on which the volume of trading during the


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last calendar year was the greatest), (ii) in the case of a security not then
listed or admitted to trading on any securities exchange, the last reported sale
price on such day, or if no sale takes place on such day, the average of the
closing bid and asked prices on such day, as reported by a reputable quotation
service designated by the Company, (iii) in the case of a security not then
listed or admitted to trading on any securities exchange and as to which no such
reported sale price or bid and asked prices are available, the average of the
reported high bid and low asked prices on such day, as reported by a reputable
quotation service, or the Wall Street Journal, or if there are no bids and asked
prices on such day, the average of the high bid and low asked prices, as so
reported, on the most recent day (not more than 30 days prior to the date in
question) for which prices have been so reported, and (iv) in the case of a
security determined by the Company's Board of Directors as not having an active
quoted market or in the case of other property, such fair market value as shall
be determined by the Board of Directors.

         5. Transfer of Warrant. Subject to the provisions of Section 4 hereof,
this Warrant may be transferred, in whole or in part, to any person or business
entity, by presentation of the Warrant to the Company with written instructions
for such transfer; provided, however, that this Warrant shall not be transferred
without the prior written consent of the Company to either of Wyle Labs or
Latecoere or to any entity that controls, is controlled by, or is under common
control with either of Wyle Labs or Latecoere. Upon such presentation for
transfer, the Company shall promptly execute and deliver a new Warrant or
Warrants in the form hereof in the name of the assignee or assignees and in the
denominations specified in such instructions. The Company shall pay all expenses
incurred by it in connection with the preparation, issuance and delivery of
Warrants under this Section.

         6. Warrant Holder Not Shareholder; Rights Offering; Preemptive Rights.
Except as otherwise provided herein, this Warrant does not confer upon the
Holder, as such, any right whatsoever as a shareholder of the Company.
Notwithstanding the foregoing, if the Company should offer to all of the
Company's shareholders the right to purchase any securities of the Company, then
all shares of Common Stock that are subject to this Warrant shall be deemed to
be outstanding and owned by the Holder and the Holder shall be entitled to
participate in such rights offering. The Company shall not grant any preemptive
rights with respect to any of its capital stock without the prior written
consent of the Holder.

         7. Adjustment Upon Changes in Stock.

            (a) If all or any portion of this Warrant shall be exercised
subsequent to any stock split, stock dividend, recapitalization, combination of
shares of the Company, or other similar event, occurring after the date hereof,
then the Holder exercising this Warrant shall receive, for the aggregate price
paid upon such exercise, the aggregate number and class of shares which such
Holder would have received if this Warrant had been exercised immediately prior
to the record date for such stock split, stock dividend, recapitalization,
combination of shares, or other similar event. If any adjustment under this
Section 7(a), would create a fractional share of Common Stock or a right to
acquire a fractional share of Common Stock, such fractional share shall be
disregarded and the number of shares subject to this Warrant shall be the next
higher number of shares, rounding all fractions upward. Whenever there shall be
an adjustment pursuant to this Section 7(a), the Company shall forthwith notify
the Holder or Holders of this Warrant of such adjustment, setting forth in
reasonable detail the event requiring the adjustment and the method by which
such adjustment was calculated.

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            (b) If all or any portion of this Warrant shall be exercised
subsequent to any merger, consolidation, exchange of shares, separation,
reorganization or liquidation of the Company, or other similar event, occurring
after the date hereof, as a result of which shares of Common Stock shall be
changed into the same or a different number of shares of the same or another
class or classes of securities of the Company or another entity, or the holders
of Common Stock are entitled to receive cash or other property, then the Holder
exercising this Warrant shall receive, for the aggregate price paid upon such
exercise, the aggregate number and class of shares, cash or other property which
such Holder would have received if this Warrant had been exercised immediately
prior to such merger, consolidation, exchange of shares, separation,
reorganization or liquidation, or other similar event. If any adjustment under
this Section 7(b) would create a fractional share of Common Stock or a right to
acquire a fractional share of Common Stock, such fractional share shall be
disregarded and the number of shares subject to this Warrant shall be the next
higher number of shares, rounding all fractions upward. Whenever there shall be
an adjustment pursuant to this Section 7(b), the Company shall forthwith notify
the Holder or Holders of this Warrant of such adjustment, setting forth in
reasonable detail the event requiring the adjustment and the method by which
such adjustment was calculated.

         8. Certain Notices. In case at any time the Company shall propose to:

            (a) declare any cash dividend upon its Common Stock;

            (b) declare any dividend upon its Common Stock payable in stock or
make any special dividend or other distribution to the holders of its Common
Stock;

            (c) offer for subscription to the holders of any of its Common Stock
any additional shares of stock in any class or other rights;

            (d) reorganize, or reclassify the capital stock of the Company, or
consolidate, merge or otherwise combine with, or sell of all or substantially
all of its assets to, another corporation;

            (e) voluntarily or involuntarily dissolve, liquidate or wind up of
the affairs of the Company; or

            (f) redeem or purchase any shares of its capital stock or securities
convertible into its capital stock;

then, in any one or more of said cases, the Company shall give to the Holder of
the Warrant, by certified or registered mail, (i) at least twenty (20) days'
prior written notice of the date on which the books of the Company shall close
or a record shall be taken for such dividend, distribution or subscription
rights or for determining rights to vote in respect of any such reorganization,
reclassification, consolidation, merger, sale, dissolution, liquidation or
winding up, and (ii) in the case of such reorganization, reclassification,
consolidation, merger, sale, dissolution, liquidation or winding up, at least
twenty (20) days' prior written notice of the date when the same shall take
place. Any notice required by clause (i) shall also specify, in the case of any
such dividend, distribution or subscription rights, the date on which the
holders of Common Stock shall be entitled thereto, and any notice required by
clause (ii) shall specify the date on which the holders of Common Stock shall be
entitled to exchange their Common Stock for securities or other property
deliverable upon such reorganization, reclassification, consolidation, merger,
sale, dissolution, liquidation or winding up, as the case may be.


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         9. Article and Section Headings. Numbered and titled article and
section headings are for convenience only and shall not be construed as
amplifying or limiting any of the provisions of this Warrant.

         10. Notice. Any and all notices, elections or demands permitted or
required to be made under this Warrant shall be in writing, signed by the party
giving such notice, election or demand and shall be delivered personally,
telecopied, telexed, or sent by certified mail or overnight via nationally
recognized courier service (such as Federal Express), to the other party at the
address set forth below, or at such other address as may be supplied in writing
and of which receipt has been acknowledged in writing. The date of personal
delivery or telecopy or two (2) business days after the date of mailing (or the
next business day after delivery to such courier service), as the case may be,
shall be the date of such notice, election or demand. For the purposes of this
Warrant:

The Address of Holder is:             ETC Asset Management, LLC
                                      c/o Armbrecht Jackson LLP
                                      Post Office Box 290
                                      Mobile, Alabama  36601
                                      Attention:  Tom Oldweiler
                                      Fax. No.

The Address of Company is:            Environmental Tectonics Corporation
                                      125 James Way
                                      Southampton, Pennsylvania  18966-3877
                                      Attention:  William F. Mitchell
                                      Fax No. (215) 357-4000

with a copy to:                       Stevens & Lee, A Professional Corporation
                                      One Glenhardie Corporate Center
                                      1275 Drummers Lane
                                      P.O. Box 236
                                      Wayne, Pennsylvania  19087-0236
                                      Attention:  Jeffrey P. Waldron, Esq.
                                      Fax No. (610) 687-1384

         11. Severability. If any provision(s) of this Warrant or the
application thereof to any person or circumstances shall be invalid or
unenforceable to any extent, tile remainder of this Warrant and the application
of such provisions to other persons or circumstances shall not be affected
thereby and shall be enforced to the greatest extent permitted by law.

         12. Entire Agreement. This Warrant between the Company and Holder
represents the entire agreement between the parties concerning the subject
matter hereof, and all oral discussions and prior agreement are merged herein.

         13. Governing Law and Amendments. This Warrant shall be construed and
enforced under the laws of the State of Tennessee applicable to contracts to be
wholly performed in such State. No amendment or modification hereof shall be
effective except in a writing executed by each of the parties hereto.


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         14. Counterparts. This Warrant may be executed in any number of
counterparts and be different parties to this Warrant in separate counterparts,
each of which when so executed shall be deemed to be an original and all of
which taken together shall constitute one and the same Warrant.

         15. Jurisdiction and Venue. The Company hereby consents to the
jurisdiction of the courts of the State of Tennessee and the United States
District Court for the Middle District of Tennessee, as well as to the
jurisdiction of all courts from which an appeal may be taken from such courts,
for the purpose of any suit, action or other proceeding arising out of any of
its obligations arising under this Agreement or with respect to the transactions
contemplated hereby, and expressly waives any and all objections it may have as
to venue in any of such courts.

         IN WITNESS WHEREOF, the parties hereto have set their hands as of the
date first above written.

COMPANY:                              ENVIRONMENTAL TECTONICS
                                      CORPORATION:

                                      By: /s/ Duane Deaner
                                          -------------------------------------
                                          Duane Deaner
                                          Chief Financial Officer

HOLDER:                               ETC ASSET MANAGEMENT, LLC

                                      By: /s/ T. Todd Morton
                                          --------------------------------------
                                          Name:  T. Todd Morton
                                          Title: Manager



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