UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549

                                  FORM 8-A


              FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                   PURSUANT TO SECTION 12(b) OR (g) OF THE
                       SECURITIES EXCHANGE ACT OF 1934


                                  AAR CORP.
           (Exact name of registrant as specified in its charter)


              Delaware                               36-2334820
     (State of incorporation or                   (I.R.S. Employer
           organization)                         Identification No.)



           1100 North Wood Dale Road                    60191
              Wood Dale, Illinois
        (Address of principal executive              (Zip Code)
                   offices)


                                       
   Securities to be registered pursuant to Section 12(b) of the Act:


       Title of each class          Name of each exchange on which
       to be so registered          each class is to be registered

      Common Stock Purchase            New York Stock Exchange
              Rights


   Securities to be registered pursuant to Section 12(g) of the Act:

                                    NONE
                              (Title of Class)

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   ITEM 1.   DESCRIPTION OF SECURITIES TO BE REGISTERED.

        On July 8, 1997, the Board of Directors of AAR CORP. (the
   "Company") declared a dividend distribution of one Right for each
   outstanding share of Common Stock, $1.00 par value (the "Common
   Stock"), of the Company to the stockholders of record on August 6,
   1997 (the "Record Date"). Each Right entitles the registered holder to
   purchase from the Company one share of Common Stock at a price of $125
   per share (the "Purchase Price"), subject to adjustment. The
   description and terms of the Rights are set forth in a Rights
   Agreement (the "Rights Agreement") between the Company and The First
   National Bank of Chicago, as Rights Agent (the "Rights Agent").  The
   Rights replace the common stock purchase rights which were initially
   distributed to the Company's stockholders in 1987 and which expired by
   their own terms on August 6, 1997.

        Until the earlier to occur of (i) the tenth business day after a
   public announcement that a person or group of affiliated or associated
   persons acquired, or obtained the right to acquire, beneficial
   ownership of 15% or more of the outstanding shares of Common Stock of
   the Company (such person or group being called an "Acquiring Person"
   and such date of first public announcement being called the "Stock
   Acquisition Date"), or (ii) the tenth business day after the
   commencement or announcement of an intention to make a tender offer or
   exchange offer which would result in any person or group of affiliated
   or associated persons becoming an Acquiring Person (the earlier of
   such dates being called the "Distribution Date"), the Rights will be
   evidenced, with respect to any of the Company's Common Stock
   certificates outstanding as of the Record Date, by such Common Stock
   certificate with a copy of this Summary of Rights attached thereto.
   The Rights Agreement provides that, until the Distribution Date, the
   Rights will be transferred with and only with the Company's Common
   Stock.  Until the Distribution Date (or earlier redemption or
   expiration of the Rights), new Common Stock certificates issued after
   the Record Date upon transfer or new issuance of the Company's Common
   Stock will contain a notation incorporating the Rights Agreement by
   reference.  Until the Distribution Date (or earlier redemption or
   expiration of the Rights), the surrender for transfer of any of the
   Company's Common Stock certificates outstanding as of the Record Date
   will also constitute the transfer of the Rights associated with the
   Common Stock represented by such certificate.  As soon as practicable
   following the Distribution Date, separate certificates evidencing the
   Rights ("Rights Certificates") will be mailed to holders of record of
   the Company's Common Stock as of the close of business on the
   Distribution Date and, thereafter, such separate Rights Certificates
   alone will evidence the Rights.

        The Rights are not exercisable until the Distribution Date.  The
   Rights will expire on August 6, 2007, unless earlier redeemed by the
   Company as described below.

        The Purchase Price payable, and the number of shares of Common
   Stock or other securities or property issuable, upon exercise of the
   Rights are subject to adjustment from time to time to prevent dilution

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   (i) in the event of a stock dividend on, or a subdivision, combination
   or reclassification of the Common Stock, (ii) upon the grant to
   holders of Common Stock of certain rights, options or warrants to
   subscribe for shares of Common Stock or convertible securities at less
   than the current market price of the Common Stock or (iii) upon the
   distribution to holders of Common Stock of evidences of indebtedness
   or assets (excluding (a) a regular periodic cash dividend or (b) a
   dividend payable in Common Stock) or of subscription rights, options
   or warrants (other than those referred to above).

        In the event that a person becomes the beneficial owner of 15% or
   more of the outstanding shares of Common Stock (i.e., becomes an
   Acquiring Person), each holder of a Right, other than Rights
   beneficially owned by the Acquiring Person (which will be void),  will
   have the right to receive upon exercise thereof, that number of shares
   of Common Stock  having a market value of two times the exercise price
   of the Right (such right being called the "Flip-In" right).

        In the event that, on or after the Stock Acquisition Date, the
   Company were acquired in a merger or other business combination, or
   50% or more of its assets or earning power were sold, proper provision
   shall be made so that each holder of a Right shall thereafter have the
   right to receive, upon the exercise thereof at the then current
   exercise price of the Right, that number of shares of common stock of
   the acquiring company which at the time of such transaction would have
   a market value of two times the exercise price of the Right.  In the
   event that the Company were the surviving corporation in a merger
   involving the Acquiring Person and the Common Stock were not changed
   or exchanged, proper provision shall be made so that each holder of a
   Right, other than Rights beneficially owned by the Acquiring Person
   (which will be void), will thereafter have the right to receive upon
   exercise that number of shares of the Common Stock having a market
   value of two times the exercise price of the Right (such right being
   called the "Flip-Over" right).  The holder of a right will no longer
   have a Flip-Over right if, and to the extent that, he has exercised
   his Flip-In right.

        With certain exceptions, no adjustment in the Purchase Price will
   be required until cumulative adjustments require an adjustment of at
   least 1% in such Purchase Price. No fractional shares will be issued
   and, in lieu thereof, a cash payment will be made based on the market
   price of the Common Stock on the last trading date prior to the date
   of exercise.

        At any time prior to the tenth day after the time that there is
   an Acquiring Person, the Company may, at its option, redeem the Rights
   in whole but not in part, at a price of $0.01 per Right (the
   "Redemption Price").  Immediately upon the authorization of the
   redemption of the Rights by the Board of Directors of the Company, the
   Rights will terminate and the only right of the holders of Rights will
   be to receive the Redemption Price.

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        Until a Right is exercised, the holder thereof, as such, will
   have no rights as a stockholder of the Company, including, without
   limitation, the right to vote or to receive dividends.

        The Board of Directors of the Company may amend the Rights
   Agreement from time to time, provided that any such changes do not
   adversely affect the interest of the holders of the Rights, and
   provided further that the Rights Agreement may not be supplemented or
   amended in any way after an Acquiring Person has become such.

        One Right will be distributed to shareholders of the Company for
   each share of Common Stock owned of record by them as of the close of
   business on August 6, 1997.  Until the Distribution Date, the Company
   will issue one Right with each share of Common Stock that shall become
   outstanding so that all shares of Common Stock will have attached 
   Rights.  As of July 31, 1997, there were 18,341,213 shares of Common
   Stock issued.

        The Rights have certain anti-takeover effects.  The Rights may
   cause substantial dilution to a person or group that attempts to
   acquire the Company on terms not approved in advance by the Board of
   Directors of the Company.  The Rights should not interfere with any
   merger or other business combination approved by the Board of
   Directors prior to the time that a person or group has acquired
   beneficial ownership of 15% or more of the Common Stock, since until
   such time the Rights may be redeemed by the Company at $.01 per Right.

        The present dividend distribution of the Rights is not taxable to
   the Company or its shareholders.  The Rights are not dilutive and will
   not affect reported earnings per share.  The Company will receive no
   proceeds from the issuance of the Rights as a dividend.

        Until a Right is exercised, the holder thereof, as such, will
   have no rights as a stockholder of the Company, including, without
   limitation, the right to vote or to receive dividends. 

        The Rights Agreement between the Company and the Rights Agent
   specifying the terms of the Rights, including the form of Rights
   Certificate and the Summary of Rights is attached hereto as an exhibit
   and incorporated herein by reference.  A copy of the Rights Agreement
   is available free of charge from the Company.  The foregoing
   description of the Rights does not purport to be complete and is
   qualified in its entirety by reference to the Rights Agreement.

   ITEM 2.   EXHIBITS.

        I.   Rights Agreement dated as of July 8, 1997 between AAR CORP.
             and First Chicago Trust Company of New York as Rights Agent.

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                                  SIGNATURE


        Pursuant to the requirements of Section 12 of the Securities and
   Exchange Act of 1934, the registrant has duly caused this registration
   statement to be signed on its behalf by the undersigned, thereto duly
   authorized.





   (Registrant)  AAR CORP.

   Date   August 4, 1997
        ---------------------------------
   By:     /s/ Howard A. Pulsifer
        ---------------------------------
        Howard A. Pulsifer
        Vice President, Secretary
           and General Counsel

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                                EXHIBIT INDEX


   EXHIBIT                                                           PAGE

      4      Rights Agreement dated as of July 8, 1997
             between AAR CORP. and First Chicago Trust Company
             of New York, as Rights Agent                                 
                                                                      8