<PAGE>

                                                                   Exhibit 10.30


                              AEROLEASE LONG BEACH
                                       dba
                                AEROPLEX AVIATION

                            USE & OCCUPANCY AGREEMENT
                            -------------------------
                                   Schedule A

1. User                                    2. Commencement Date(s):
                                           (a) 30 days after execution of this
Gulfstream Aerospace Corporation,          agreement main hangar, shop/office 
a California Corporation                   (b) 15 days thereafter Hangar #3 
4150 Donald Douglas Drive                  (c) 30 days after (b) Hangar #4 
Long Beach, CA 90808                       (d) 30 days after (c) Hangar #5

3. Utilities                               4. Fee (per month)
-Electrical supplied by User               a. Main hangar:          $20,000
Meter  #'s                                 b. Lean to office/shop:  $7,200
1st floor lighting & a/c: P264-11868       c. Hangar #3:            $5,000
shop and floor utilities: P376-169         d. Hangar #4:            $5,000
Hangar #3: Y367-7735                       e. Hangar #5:            $5,000
Hangar #4: Y367-7725                       Security Deposit:        $42,200
Hangar #5: Y367-7726                       (Check # )
                                           TOTAL MONTHLY FEE:       $42,200
5. Term
Two (2) years from date of occupancies     6. Aircraft Types:
for the units listed in Item 2.            Various Gulfstream aircraft for 
One (1)- Two (2) year renewal option       related services and interior
(180 day notice required for each unit)    modifications

7. Space (office/hangar #)                 8. Special Terms:
a. Main hangar:             25,000 sq/ft      Rent during the (2) year option
b. 1st floor Lean to                          period will be "at market" as
   office/shop:             6,000 sq/ft       mutually agreed.
c. Hangar #3:               10,000 sq/ft      
d. Hangar #4:               10,000 sq/ft
e. Hangar #5:               10,000 sq/ft

AEROLEASE LONG BEACH, dba                  Authorization: The undersigned is 
AEROPLEX AVIATION                          authorized to accept the terms and 
                                           conditions hereinabove
                                           GULFSTREAM AEROSPACE CORP.,
                                           CALIFORNIA CORPORATION

By:   /s/ Milton A. Widelitz               By:    /s/ Ken Kelley
     -----------------------------               -------------------------------
     Milton A. Widelitz, General Partner         Ken Kelley, General Manager

Date: 4/4/97                               Date: April 10, 1997
     -----------------------------               -------------------------------
<PAGE>

                               TERMS & CONDITIONS

This use and occupancy agreement is made between Aerolease Long Beach, dba
Aeroplex Aviation, 3333 East Spring Street, Long Beach, CA 90806 ("Aeroplex")
and User, identified in Item I of Schedule A.

                                    RECITALS

A.    Aeroplex leases certain facilities and Premises (the "Site") at the Long
      Beach Airport (the "Airport"). Gulfstream is entitled to ingress and
      egress to the facility at all times. Gulfstream is entitled to use,
      without charge, 15 parking spaces in the Aeroplex main parking lot, where
      designated by Aeroplex General Manager and agreed to by Gulfstream.

B.    Aeroplex leases the Site from the City of Long Beach, a municipal
      corporation (the "City"). Said Agreement is hereinafter referred to as the
      "Master Lease".

C.    Aeroplex desires to grant to User the right to use and occupy a portion of
      the Site (the "Premises").

D.    In consideration of the mutual covenants herein stated:

1.    Grant: Aeroplex upon the terms and conditions herein stated, grants to
      User, and User takes from Aeroplex, the Premises described in Schedule A
      above, Aeroplex is responsible for providing the premises and each
      additional portion of the premises as called for in Schedule A, attached
      hereto, free of all previous tenants and their belongings and equipment,
      in a timely manner.

2.    Term: This agreement shall commence on the date set forth in Item 2 of
      Schedule A and continue for the period of time set forth in Item 5. In the
      event User holds over at the expiration of the term or any renewal, said
      holdover shall create a tenancy from month to month at one and one-half
      the monthly rental specified above and shall otherwise be on the terms and
      conditions hereunder.

      3. Rental: User shall pay the fees set forth in Item 4 of Schedule A in
      advance on the first day of each month during the term of this Agreement.
      Fees shall be prorated in the event the commencement date shown in Item 2
      falls on a day other than the first of the month. The fees shall be
      payable without deduction or setoff, and without prior notice or demand.
      Lessee hereby acknowledges that late payment by Lessee to Lessor of rent
      or other sums due hereunder will cause Lessor to incur cost not
      contemplated by this Agreement, the exact amounts of which are extremely
      difficult to ascertain. Such costs include, but are not limited to,
      processing and accounting charges, and late charges which may be imposed
      upon Lessor by the term of any mortgage or deed of trust covering the
      Premises. Accordingly, if any installment or rent or other sum due from
      Lessee shall not be received by Lessor or Lessor's designee within five
      (5) business days of its due date, then Lessee shall pay to Lessor a late
      charge equal to ten percent (10%) of such amount overdue. The parties
      hereby agree that such late charge represents a fair and reasonable
      estimate of the cost that the Lessor will incur by reason of the late
      payment by Lessee.

4.    Adjustments to Fees:

      (a)   The total monthly fee set forth in Item 4 of Schedule A shall,
            beginning with the second year of the term, be adjusted after the
            end of each year and during the term of this Agreement according to
            the changes in the Consumer Price Index (CPI) or the Bureau of Labor
            Statistics of the U.S. Department of Labor for all Urban Consumers,
            Los Angeles - Anaheim. Riverside California. "All Items". The CPI
            for February, 1997 is 159.2. Adjustments shall be made in the ratio
            that the change in CPI between February. 1997 and each succeeding
            February, has to the earlier year. Thus, if February, 1998 CPI will
            be 162.4, then the increase shall be (l62.4-l59.2)/159.2=.02 or 2%.


                                                                               2
<PAGE>

      (b)   The total monthly fee in Item 4 of Schedule A, as adjusted annually
            pursuant to this provision, shall be determined at the beginning of
            each annual term by multiplying the monthly fee as adjusted by a
            fraction, the numerator of which shall be the CPI for the same
            month, which is three (3) months prior to the end of the annual
            term, and the denominator of which shall be the CPI for the month
            which is three (3) months prior to the beginning of the term of this
            Agreement. Notwithstanding that Aeroplex may, at its sole
            discretion, elect not to adjust the fees, or to only partially
            adjust them, the adjustment to the fees hereunder shall be
            calculated as if Aeroplex had made the entire adjustment permitted
            hereunder. In no event shall the annual fee as adjusted be reduced.

      (c)   In the event the compilation and/or publication of the CPI is to be
            changed or discontinued, then an index most nearly the same as the
            CPI shall be used to make the above calculations.

5.    Use of Premises: Premises shall be used for the purpose set forth in
      Schedule A and any other purpose authorized under the Master Lease, except
      the sale of aircraft fuel by User. This agreement does not give User the
      right to conduct a business at the Airport; any such right can only be
      obtained from the City.

6.    Aircraft Support: Aeroplex hereby authorizes User to utilize any vendor it
      chooses on the Premises, except for aircraft refueling. Aeroplex reserves
      the right to maintain this service or designate an exclusive fuel service
      provider for aircraft on the Premises only. At the time of this lease
      execution the aircraft refueling service provider on the Site and Premises
      is Million Air Long Beach, Inc.

7.    Security Deposit: Prior to occupancy and upon execution of this Agreement,
      User will deposit with Aeroplex a sum equal to the fee for one (1) month.
      In the event User defaults in the performance of any of the terms and
      conditions herein, Aeroplex may use, apply or retain, the deposit for the
      payment of any fees, or for any sum which Aeroplex may be required to
      expend by reason of User's default. In the event User fully and faithfully
      complies with all terms and conditions of this Agreement the deposit shall
      be returned to User at its expiration and after delivery of the Premises
      to Aeroplex. User shall not apply the security deposit as rent, whether
      for first or subsequent months of tenancy, including the 30 day period
      after notice to vacate is provided by User to Aeroplex.

8.    Alterations: User shall not make any alteration, improvements, additions
      or utility installations (including power panels) in or about the
      Premises, without Aeroplex's prior written consent, which consent shall
      not to be unreasonably withheld. Such approvals shall also require
      Aeroplex's obtaining, on behalf of User, the consent of the City. User
      acknowledges that consent may be conditioned upon User's agreement to
      restore Premises to the condition they were in at the commencement of the
      term of this Agreement. Any such improvements that Aeroplex wants removed
      at the termination of the Agreement shall be done solely at the User's
      expense. Aeroplex recognizes that User is contemplating the improvements
      shown in Exhibit A. Aeroplex and User agree to equally share (50% each)
      the cost associated with the recommendation made by User's insurance
      carrier (Factory Mutual) to provide additional support bracing to the
      existing fire protection system located in the Aeroplex hangars listed in
      Schedule A.

9.    Repairs: User, at its sole cost and expense, shall keep the interior of
      the Premises and all glass therein in good condition and repair. Upon the
      expiration or sooner termination of this Agreement, the Premises shall be
      returned to Aeroplex in the same condition as they were in at the
      beginning of the term, normal wear and tear excepted. Except as set forth
      in an addendum, if any, attached and initialed by the parties hereto,
      Aeroplex makes no representation to User about the condition of the
      Premises.

10.   Utilities: User shall supply at its own expense, the utilities named in
      Item 3 of Schedule A. Aeroplex shall not be liable for any damages caused
      as a result of its failure to supply said utility services, unless such
      failure is due to its gross negligence. User agrees to pay promptly all
      utility obligations incurred by it on the Premises.

11.   Taxes: Aeroplex shall pay all Real Estate Taxes and/or possessory interest
      taxes, as presently assessed, or which may be assessed as a result of a
      reappraisal of the Premises, except for appraisals caused by improvements
      made by or requested to be made by User. In such event, User will only be
      responsible for any increase in the taxes associated with such
      reappraisal. Aeroplex will be responsible for any taxes assessed


                                                                               3
<PAGE>

      on improvement made to the property which were not requested by User. User
      shall pay prior to delinquency all taxes assessed against and levied upon
      trade fixtures, furnishings, equipment, and all other personal property of
      User contained in the Premises or elsewhere on the Site. When possible,
      User shall cause said trade fixtures, furnishings, equipment, and all
      other personal property to be assessed and billed separately from the real
      property of User. Also, User shall pay Aeroplex any increase in Real
      Estate taxes attributable to the real property and improvements of the
      User located on the Premises over and above the taxes assessed on the
      Premises for the fiscal year of July 1, 1997 to June 30, 1998. By
      executing this Agreement and accepting the benefits thereof, a property
      interest may be created, known as a "possessory interest". If such
      property interest may be created, User, as the party in whom the
      possessory interest is vested, shall be responsible for the property taxes
      levied upon such interest.

12.   Signs: User shall not erect or display any signs without prior written
      consent of Aeroplex, which consent shall not be unreasonably withheld.

13.   Insurance/Indemnification: User agrees that at all times in which this
      Agreement is in effect it will maintain, in full force and effect, an
      airport (general) liability policy, including contractual, in an amount
      not less than $200,000,000 combined single limit, which will be used to
      indemnify and hold harmless Aeroplex Long Beach dba Aeroplex Aviation, the
      City of Long Beach, members of the City Council, all of the City's boards
      and commissions, and every officer and employee of the City (hereinafter
      the "Additional Insured") against liability resulting from any suits,
      claims, demands, actions or loss, including all costs and expense of
      litigation, brought or made by reason of the use and/or occupancy by User
      its officers, agents, employees, licensees, patrons, or visitors of the
      Site and Premises, and of the Long Beach Airport or any of its facilities,
      except for liability resulting from the sole negligence of Aeroplex, its
      officers, agents, employees, licensees, patrons, or visitors

      In the event Aeroplex contests User's contention that an incident is the
      result of Aeroplex' sole negligence, User shall defend Aeroplex and User's
      insurance carrier may subrogate against Aeroplex' insurance carrier.
      Aeroplex will reimburse User if it is determined that the negligence in an
      incident was solely that of Aeroplex. Aeroplex agrees to maintain
      $20,000,000 of general liability insurance to protect User in the event of
      an incident caused by Aeroplex' sole negligence. In such event User agrees
      to cap the maximum liability of Aeroplex in the amount of $20,000,000 and
      to waive any and all claims in excess of that amount. Aeroplex and User
      will equally share (50% each) the additional annual premium for the
      insurance necessary as a result of increasing Aeroplex' general liability
      insurance policy from $10,000,000 to $20,000,000.

      In addition, User will carry aircraft liability insurance, and adequate
      hangarskeepers, ground and flight, and adequate automobile liability
      insurance. User will carry worker's compensation insurance coverage for
      all of its employees.

      Except to the extent such liability has been caused by the sole negligence
      of Aeroplex, its officers, agents, employees, licensees, patrons, or
      visitors, all policies required by this provision shall include a
      severability of interest (cross liability) clause. Said coverage shall be
      primary with respect to Aeroplex. The Additional Insured shall be named as
      additional insured on said policy(ies) to the extent of the protection
      specified above. All insurance policies secured by User shall contain the
      following: "The inclusion herein of any person or entity as an insured
      shall not effect any right such person or entity would have as a claimant
      hereunder if not so included".

      All insurance policies shall require notification to Aeroplex by certified
      mail of any modification, termination, or cancellation by the insurance
      company of any policy of insurance no less than thirty (30) days prior to
      the effective date of such modification, termination, or cancellation.
      Notice by the insured shall be effective upon receipt of said notice by
      Aeroplex.

      In addition to any other requirements of this Agreement, the User shall
      notify Aeroplex of any modification, termination, or cancellation of any
      policy of insurance secured by User pursuant to this paragraph as soon as
      User learns of any such modification, termination, or cancellation.


                                                                               4
<PAGE>

      The procuring of such insurance shall not be construed to be a limitation
      upon User's liability or as full performance on User's responsibility to
      indemnify and hold harmless Aeroplex for any and all claims brought by
      others due to the negligence of User. User understands and agrees that not
      withstanding any policies of insurance, User's obligation to protect and
      hold harmless the Additional Insured hereunder is for the full amount of
      any damage, injuries, loss expense, costs or liabilities caused by, or
      attributed to, the sole negligence of the User, its officers, agents, or
      employees.

14.   Aircraft Ownership: Deleted - not necessary

15.   Assignment and Subletting: This Agreement may not be voluntarily or by
      operation of law assigned, or the Premises transferred, mortgaged, sublet,
      or encumbered in whole or in part without Aeroplex's prior written consent
      which consent will not be unreasonably withheld.

16.   Storage: No outside ramp, alleyway, or parking lot storage of aircraft
      parts or service equipment, lumber, metal, machinery, liquids, vehicles,
      trailers, or other materials will be permitted. No hazardous materials
      will be stored in any facility on the Site or Premises, except at the sole
      responsibility of User, and in accordance with all applicable Federal,
      State, and local laws and regulations.

17.   FAA Regulations: User shall abide by Part 107 ("Airport Security") and
      Part 139 ("Airport Safety") of the Federal Aviation Regulations, and
      reimburse Aeroplex, and/or the City for the full amount of any fine,
      penalty or other financial loss resulting from its failure to do so.

18.   Towing of Aircraft: User, or its designated agent, shall perform all
      aircraft towing at the Site.

19.   Compliance with Laws: User, at its sole expense, shall comply with all
      applicable statutes, ordinances, rules, regulations, and orders regulating
      the use by User of the Premises. User also agrees to observe all
      reasonable rules which Aeroplex, or the City may make from time to time
      for the management, safety, care and cleanliness of the Premises, the
      common areas, the parking of vehicles and aircraft, and the preservation
      of good order therein, as well as for the convenience of other occupants
      and tenants. Aeroplex rules shall be presented to User for concurrence
      prior to being effected.

20.   Right to Entry: Aeroplex and its designees shall have the right to enter
      the Premises at reasonable times and upon prior notice for the purpose of
      inspecting, showing to prospective purchasers, lenders or tenants, and
      making repairs or alterations as it may deem necessary or desirable, and
      at any time without notice in the event of any emergency. Such entry shall
      be in accordance with User's security policies and shall be accompanied by
      User's designee if User so requires, and entry shall not interfere with
      User's business or maintenance of aircraft.

21.   Damage: In the event the Premises are totally destroyed by fire or other
      casualty, or are damaged to such an extent that Aeroplex, at its sole
      option, determines to raze or remodel the building(s) located thereon,
      then the term hereby created by this use and occupancy agreement shall end
      on the date of such fire or casualty, and the User shall pay the rent
      apportioned to the time of such fire or casualty and shall surrender
      possession of said Premises. If, however, said Premises, in Aeroplex's
      judgement, can be repaired with reasonable promptness so as to be in as
      good condition as they were at the beginning of the term, the Agreement
      and term herein created shall not be affected except that the rent shall
      be apportioned or suspended while such repairs are made. If, however, said
      Premises are slightly damaged by fire, accident, or casualty, and are not
      thereby rendered unfit for occupancy, then the same shall be repaired by
      Aeroplex with reasonable promptness and no abatement or apportionment of
      rent shall be made, except to the extent such damages prevent User from
      conducting the maintenance work or service work on the aircraft

22.   Eminent Domain: If the whole of the buildings of which the Premises are
      part shall be acquired or condemned by eminent domain for any public or
      quasi-public use or purpose, then the term of this Agreement shall cease
      and terminate as of the date of title vesting in such proceeding, and all
      fees shall be paid


                                                                               5
<PAGE>

      up to that date, and User shall have no claim against Aeroplex or the
      condemning authority with respect to any compensation for such taking
      awarded Aeroplex whether through a negotiated settlement or formal
      condemnation proceedings.

      If any part of the building of which the Premises are a part shall be
      acquired or condemned as aforesaid, and in the event that such partial
      taking or condemnation shall render the portion of the building occupied
      hereunder by the User unsuitable for the User's business, then the term of
      this Agreement shall cease and terminate as of the date of title vesting
      in such proceeding. User shall have no claim against Aeroplex, or the
      condemning authority with respect to any compensation for such taking
      awarded to Aeroplex, whether through a negotiated settlement or formal
      condemnation proceedings, and provided, however, fees shall be adjusted to
      the date of such termination. In the event a partial taking or
      condemnation, which is not extensive enough to render that portion of the
      building occupied hereunder to User unsuitable for the business of the
      User, at User's sole judgement, Aeroplex shall promptly restore said
      portion of said leased hereunder to its condition as nearly as possible as
      existed at the time of such condemnation less the portion lost in the
      taking, and this Agreement shall continue in full force and effect, and
      rent shall be adjusted on the basis of the number of square feet taken on
      a pro-rata basis.

23.   Master Lease and Agreement: This Agreement is, and shall be at all times,
      subject to and subordinate to the Master Lease. Aeroplex agrees to
      maintain the Master Lease in full force and effect during the term of this
      Agreement, provided however that it shall not be liable for any earlier
      termination of the Sublease which is not due to its fault.

24.   Default and Remedies: The occurrence of any one or more of the following
      events shall constitute a material default and breach of this Agreement by
      the User.

      (a)   User shall default in the due and punctual payment of the fees
            payable hereunder, and such default shall continue for five (5) days
            after Aeroplex shall have given User written notice of such default.

      (b)   User shall neglect or fail to perform or observe any of the
            covenants herein contained on User's part to be performed or
            observed other than described in subparagraph (a) above, and User
            shall fail to remedy same within thirty (30) days after Aeroplex
            shall have given to User written notice specifying such neglect or
            failure, or if such default is incapable of being cured within
            thirty (30) days, then in such event, if User shall fail to commence
            the cure of such default within thirty (30) days of receipt of
            written notice of same, and continue thereafter in good faith and
            with due diligence to cure same; or,

      (c)   User shall be involved in financial difficulties as evidenced by (1)
            its admitting in writing its inability to pay its debts generally as
            they come due, or (2) by it its filing a petition in Bankruptcy or
            for reorganization or for the adoption of an arrangement under the
            Bankruptcy Act or an answer or other pleading to be filed by or on
            behalf or User admitting the material allegations of such a petition
            or seeking, consenting to or acquiescing in the relief provided for
            under such Act, or (3) by its approving a petition filed against it
            for the effecting of an arrangement in bankruptcy or for a
            reorganization pursuant to said Bankruptcy Act.

            In the event of any such material default or breach by User,
            Aeroplex may, at anytime thereafter, with or without notice or
            demand and without limiting Aeroplex in the exercise of any right or
            remedy which Aeroplex may have by reason of such default or breach.

            (i)   Terminate User's right to possession of the Premises by any
                  lawful means, in which case this Agreement shall terminate and
                  User shall immediately surrender possession of the Premises to
                  Aeroplex. In such event, Aeroplex shall be entitled to recover
                  from User all damages incurred by Aeroplex by reason of User's
                  default, including but not limited to, the cost of recovering
                  possession of the Premises; expense of reletting, including
                  removal of


                                                                               5
<PAGE>

                  the alterations User may have made during the occupancy of the
                  Premises, reasonable attorney fees, and any real estate
                  commission actually paid; that portion of any leasing
                  commission paid by Aeroplex applicable to the unexpired term
                  of this Agreement

            (ii)  Pursue any other remedy now or hereafter available to Aeroplex
                  under the laws or judicial decisions of the state wherein the
                  Premises are located.

25.   General Provisions:

      (a)   Waiver: The waiver by either party of any term, covenant, or
            condition herein contained shall not be deemed to be a waiver of
            such term, covenant, or condition on any subsequent breach of same,
            or any other term, covenant, or condition herein contained.

      (b)   Marginal Headings: The marginal headings and paragraph titles to the
            paragraphs of this Agreement are not a part of this Agreement, and
            shall have no effect upon the construction or interpretation of any
            part hereof.

      (c)   Time: Time is of the essence in this Agreement, and each and all of
            its provisions in which performance is a factor.

      (d)   Successors and Assigns: The covenants and conditions herein
            contained, subject to the provisions as to assignment, apply to and
            bind the heirs, successors, executors, administrators, and assignees
            of the parties hereto.

      (e)   Recordation: Neither Aeroplex nor User shall record this Agreement
            without prior written consent of the other party, but either party
            at the request of the other shall execute a short form memorandum of
            the Agreement for recording.

      (f)   Quiet Possession: Upon User's paying the rent reserved hereunder,
            and observing and performing all of the covenants, conditions, and
            provisions on User's part to be observed and performed hereunder,
            User shall have quiet possession of Premises for the entire term
            hereof, subject to all provisions of this Agreement.

      (g)   Prior Agreements: This Agreement contains all of the agreements of
            the parties hereto with respect to any matter covered or mentioned
            in this Agreement, and no prior agreements or understandings
            pertaining to any such matters shall be effective for any purpose.
            No provision of this Agreement may be amended or added to, except by
            an agreement in writing assigned by the parties hereto or their
            respective successors in interest. This Agreement shall not be
            effective or binding upon any party until fully executed by both
            parties hereto.

      (h)   Inability to Perform: This Agreement and the obligations of the User
            hereunder shall not be affected or impaired because Aeroplex is
            unable to fulfill any of its obligations hereunder or is delayed in
            doing so, if such inability or delay is caused by a reason of
            strike, labor troubles, acts of God, or any other caused beyond
            reasonable control of Aeroplex, except that rent shall not commence
            until the existing tenants have been vacated from the Premises.

      (i)   Attorney Fees: In the event of any action or proceeding brought by
            either party against the other under this Agreement, the prevailing
            party shall be entitled to recover all costs and expenses, including
            the fees of its attorneys in such action or proceeding, in such
            amount as the court may deem just and proper as attorney fees.

      (j)   Separability: Any provision of this Agreement which shall prove to
            be invalid, void, or illegal shall in no way affect, impair, or
            invalidate any other provision hereof, and such other provision
            shall remain in full force and effect.


                                                                               7
<PAGE>

      (k)   Cumulative Remedies: No remedy or election hereunder shall be deemed
            exclusive, but shall, wherever possible, be cumulative with all
            other remedies at law or in equity.

      (l)   Choice of Law: This Agreement shall be governerd and construed in
            accordance with the laws of the State of California.

26.   Premises Free of All Tenants: Deleted - not applicable.

27.   Use of Premises: The Premises may be used, without approval of Aeroplex
      for interior refurbishing of fixed wing aircraft, completions and other
      service-related work for aircraft, or for any other use permitted under
      the Master Lease, or any use required by Gulfstream and currently being
      conducted by Gulfstream on its primary leased property, unless
      specifically excluded by the Master Lease. Gulfstream may not sell
      aircraft fuel or be fuel serviced on the premises by any provider other
      than Long Beach Million Air, Inc.

28.   Right to Remove Equipment or Personal Property: All personal property and
      all trade fixtures placed on the Premises at the direction or with the
      consent of Gulfstream, its employees, agents, licensees or invitees, shall
      be the property of Gulfstream. Gulfstream may remove any such personal
      property or trade fixtures at the termination of the Agreement; provided,
      however, should Gulfstream cause any damage to the Premises upon the
      removal of such personal property or trade fixtures, Gulfstream shall
      immediately repair the damage resulting from the removal of the personal
      property or trade fixtures.

29.   Notice and Requests: All notices and requests hereunder shall be in
      writing and shall be deemed to be effective when received at the addresses
      listed below (or such other addresses as may hereafter be designated in
      writing)

       For Gulfstream:   Kenneth D. Kelley
                         General Manager 
                         Long Beach Operations
                         Gulfstream Aerospace Corporation, a California
                         Corporation
                         4150 Donald Douglas Drive
                         Long Beach, CA 90808

       For Aeroplex:     Milton A. Widelitz
                         Aerolease Long Beach, A California General
                         Partnership, dba Aeroplex Aviation
                         10850 Wilshire Boulevard, Suite 740
                         Los Angeles, CA 90024

30.   Consent to Use and Occupancy agreement: This Agreement is contingent upon
      the receipt of consent to this Agreement by the City of Long Beach Airport
      Bureau.

                       ACCEPTANCE OF TERMS AND CONDITIONS

Aerolease Long Beach, A California       Gulfstream Aerospace Corporation,
General Partnership, dba Aeroplex        a California Corporation
Aviation


By:

 /s/ Milton A. Widelitz                   /s/ Ken Kelley
----------------------------------       ------------------------------------
General Partner                          General Manager, authorized signature

DATE   4/4/97                             DATE    April 10, 1997
    ------------------------------             ------------------------------


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