Document:

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                                                                  Exhibit 10(pp)

                    LOCKHEED MARTIN GLOBAL TELECOMMUNCIATIONS
                    -----------------------------------------
                       SUPPLEMENTAL SAVINGS INCENTIVE PLAN
                       -----------------------------------

                          (Effective as of May 1, 2001)

                                    ARTICLE I
                                    ---------

                              PURPOSES OF THE PLAN
                              --------------------

         The purposes of the Lockheed Martin Global Telecommunications
Supplemental Savings Incentive Plan (the "Supplemental Savings Incentive Plan")
are to provide certain key management employees of Lockheed Martin Global
Telecommunications, LLC and its subsidiaries (the "Company") the opportunity to
defer compensation that cannot be contributed under the Lockheed Martin Global
Telecommunications Savings Incentive Plan (the "Qualified Savings Plan") because
of the limitations of Code section 401(a)(17), 402(g), or 415(c)(1)(A), and to
provide those employees with matching credits equal to the matching
contributions that would have been made by the Company on their behalf under the
Qualified Savings Plan if the amounts deferred had been contributed to the
Qualified Savings Plan.

                                   ARTICLE II
                                   ----------

                                   DEFINITIONS
                                   -----------

         Unless the context indicates otherwise, the following words and phrases
shall have the meanings hereinafter indicated:

         1.       ACCOUNT -- The bookkeeping account maintained by the Company
for each Participant which is credited with the Participant's Deferred
Compensation, Matching Credits, and earnings (or losses) attributable to the
Investment Options selected by the Participant, and which is debited to reflect
distributions. The portions of a Participant's Account allocated to different
Investment Options will be accounted for separately.

         2.       ACCOUNT BALANCE -- The total amount credited to a
Participant's Account at any time, including the portions of the Account
allocated to each Investment Option.

         3.       BENEFICIARY -- The person or persons designated by the
Participant as his or her beneficiary under the Qualified Savings Plan, or if no
such beneficiary is designated, the Participant's estate.

         4.       BOARD -- The Board of Directors of Lockheed Martin
Corporation.

         5.       CODE -- The Internal Revenue Code of 1986, as amended.

         6.       COMMITTEE -- The committee described in Section 1 of Article
IX.

         7.       COMPANY -- Lockheed Martin Global Telecommunications, LLC and
its subsidiaries.

         8.       COMPENSATION -- An employee's base salary from the Company, as
defined in the Qualified Savings Plan.
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         9.       DEFERRAL AGREEMENT -- The written agreement executed by an
Eligible Employee on the form provided by the Company under which the Eligible
Employee elects to defer Compensation for a Year.

         10.      DEFERRED COMPENSATION -- The amount of Compensation deferred
and credited to a Participant's Account under the Supplemental Savings Incentive
Plan for a Year.

         11.      ELIGIBLE EMPLOYEE -- A salaried employee who is eligible to
participate in the Qualified Savings Plan as of the thirtieth (30th) day
preceding the last day on which a Deferral Agreement may be made for a Year, and
whose annual rate of Compensation equals or exceeds $150,000 as of November 1 of
the Year preceding the Year for which a Deferral Agreement is to take effect,
and who satisfies such additional requirements for participation in this
Supplemental Savings Incentive Plan as the Committee may from time to time
establish. In the exercise of its authority under this provision, the Committee
shall limit participation in the Plan to employees whom the Committee believes
to be a select group of management or highly compensated employees within the
meaning of Title I of the Employee Retirement Income Security Act of 1974, as
amended.

         12.      EXCHANGE ACT -- The Securities Exchange Act of 1934.

         13.      INVESTMENT OPTION -- A measure of investment return pursuant
to which Deferred Compensation credited to a Participant's Account shall be
further credited with earnings (or losses). The Investment Options available
under this Supplemental Savings Incentive Plan shall correspond to the
investment options available under the Qualified Savings Plan.

         14.      LOCKHEED MARTIN CORPORATION STOCK INVESTMENT OPTION -- The
Investment Option under which the Participant's Account is credited as if
invested under the investment option in the Qualified Savings Plan for the
common stock of Lockheed Martin Corporation.

         15.      MATCHING CREDIT -- Any amount credited to a Participant's
Account under Article IV.

         16.      PARTICIPANT -- An Eligible Employee for whom Compensation has
been deferred under this Supplemental Savings Incentive Plan; the term shall
include a former employee whose Account Balance has not been fully distributed.

         17.      QUALIFIED SAVINGS PLAN -- The Lockheed Martin Global
Telecommunications Savings Incentive Plan or any successor plan.

         18.      SECTION 16 PERSON -- A Participant who at the relevant time is
subject to the reporting and short-swing liability provisions of Section 16 of
the Exchange Act.

         19.      SUPPLEMENTAL SAVINGS INCENTIVE PLAN -- The Lockheed Martin
Global Telecommunications Supplemental Savings Incentive Plan, adopted by the
Board of Directors of Lockheed Martin Corporation, effective May 1, 2001.

         20.      YEAR -- The calendar year.
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                                   ARTICLE III
                                   -----------

                           ELECTION OF DEFERRED AMOUNT
                           ---------------------------

         1.       Timing of Deferral Elections. An Eligible Employee may elect
                  ----------------------------
to defer Compensation for a Year by executing and delivering to the Company a
Deferral Agreement no later than November 30 of the preceding Year. An Eligible
Employee's Deferral Agreement shall be irrevocable when delivered to the Company
and shall remain irrevocably in effect for all succeeding Years, except that the
Deferral Agreement may be modified or revoked with respect to any succeeding
year by the Eligible Employee's execution and delivery to the Company of a new
or modified Deferral Agreement on or before November 30 of such succeeding Year.
Notwithstanding the foregoing, deferral elections for the 2001 Year may be made
as late as____________, 2001, in recognition of the fact that the right to enter
into Deferral Agreements for the 2001 Year has been delayed pending the approval
of this Supplemental Savings Incentive Plan by the Board and the distribution of
prospectuses for the Plan; provided, however, that no Deferral Agreement for the
2001 Year shall take effect, or apply to Compensation earned, before the date
that the Eligible Employee's Deferral Agreement is executed and delivered to the
Company.

         2.       Amount of Deferred Compensation. Unless an Eligible Employee
                  -------------------------------
elects to make no deferral for a Year, the Eligible Employee's Deferred
Compensation for a Year shall equal (i) his or her Compensation from the time
when his or her Deferral Agreement takes effect during the Year (as elected
under Section 3 of this Article III) until the last day of the Year, multiplied
by (ii) the percentage of Compensation that the Eligible Employee has elected to
contribute to the Qualified Savings Plan for that Year. An Eligible Employee who
has elected to make a deferral for a Year under this Supplemental Savings
Incentive Plan shall be precluded from modifying his or her rate of
contributions to the Qualified Savings Plan for that Year after the date on
which his or her Deferral Agreement for that Year (including any continuing
Deferral Agreement) has become irrevocable under Section 1 of this Article III.

         3.       Time when Deferral Agreement Takes Effect. The Eligible
                  -----------------------------------------
Employee will have his or her Deferral Agreement take effect after the
occurrence of the earliest of the following triggering events:

                  (a)  the Eligible Employee's pre-tax salary reduction
                       contributions under the Qualified Savings Plan for the
                       Year equal the applicable limit under Code section
                       402(g),

                  (b)  the Compensation paid to the Eligible Employee for the
                       year equals the applicable compensation limit under Code
                       section 401(a)(17), or

                  (c)  the annual additions (within the meaning of Code section
                       415(c)(21)) of the Eligible Employee for the Year under
                       the Qualified Savings Plan and any other plan maintained
                       by the Company or Lockheed Martin Corporation equal the
                       applicable limit under Code section 415(c)(1)(A).

An Eligible Employee's Deferral Agreement shall first take effect and apply to
that portion of Compensation earned by the Eligible Employee for a particular
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                                     - 4 -

payroll period that exceeds the amount at which, or with respect to which, the
triggering event occurs.

                                   ARTICLE IV
                                   ----------

                                MATCHING CREDITS
                                ----------------

         The Company shall credit to the Account of a Participant as Matching
Credits the same percentage of the Participant's Deferred Compensation as it
would have contributed as matching contributions to the Qualified Savings Plan
if the amount of the Participant's Deferred Compensation had been contributed as
pre-tax salary reduction to the Qualified Savings Plan.

                                    ARTICLE V
                                    ---------

                              CREDITING OF ACCOUNTS
                              ---------------------

         1.       Crediting of Deferred Compensation.  Deferred Compensation
                  ----------------------------------
shall be credited to a Participant's Account as of the day on which such amount
would have been credited to the Participant's account under the Qualified
Savings Plan if the Participant's Deferred Compensation had been contributed as
pre-tax salary reduction to the Qualified Savings Plan.

         2.       Crediting of Matching Credits.  Matching Credits shall be
                  -----------------------------
credited to a Participant's Account as of the day on which the Deferred
Compensation to which they relate are credited under Section 1 of this Article
V.

         3.       Crediting of Earnings.  Earnings shall be credited to a
                  ---------------------
Participant's Account based on the Investment Option or Options to which his or
her Account has been allocated, beginning with the day as of which any amounts
(or any reallocation of amounts) are credited to the Participant's Account. Any
amount distributed from a Participant's Account shall be credited with earnings
through the day on which the distribution is processed. The manner in which
earnings are credited under each of the Investment Options shall be determined
in the same manner as under the Qualified Savings Plan.

         4.       Selection of Investment Options.  The amounts credited to a
                  -------------------------------
Participant's Account under this Supplemental Savings Incentive Plan shall be
allocated among the Investment Options in the same percentages as the
Participant's account under the Qualified Savings Plan is allocated among those
Investment Options. In the event that an Account is maintained for a Participant
under this Supplemental Savings Incentive Plan at a time when an account is no
longer maintained for the Participant under the Qualified Savings Plan, the
Participant may allocate and reallocate his or her Account Balance among the
Investment Options in accordance with the procedures and limitations on
allocations and reallocations under the Qualified Savings Plan.
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                                   ARTICLE VI
                                   ----------

                               PAYMENT OF BENEFITS
                               -------------------

         1.       General.  The Company's liability to pay benefits to a
                  -------
Participant or Beneficiary under this Supplemental Savings Incentive Plan shall
be measured by and shall in no event exceed the Participant's Account Balance,
which shall be fully vested and nonforfeitable at all times. All benefit
payments shall be made in cash and, except as otherwise provided, shall reduce
allocations to the Investment Options in the same proportions that the
Participant's Account Balance is allocated among those Investment Options.

         2.       Commencement of Payment.  The payment of benefits to a
                  -----------------------
Participant shall commence as soon as administratively feasible following the
Participant's termination of employment with the Company and his or her
entitlement to commence receiving benefits under the Qualified Savings Plan.

         3.       Form of Payment.  At the time an Eligible Employee first
                  ---------------
completes a Deferral Agreement, he or she shall irrevocably elect the form of
payment of his or her Account Balance from among the following options:

                  (a)  A lump sum.

                  (b)  Annual payments for a period of 5, 10, 15, or 20 years,
                       as designated by the Participant. The amount of each
                       annual payment shall be determined by dividing the
                       Participant's Account Balance on the date such payment is
                       processed by the number of years remaining in the
                       designated installment period. The installment period may
                       be shortened, in the sole discretion of the Committee, if
                       the Committee at any time determines that the amount of
                       the annual payments that would be made to the Participant
                       during the designated installment period would be too
                       small to justify the maintenance of the Participant's
                       Account and the processing of payments.

         4.       Prospective Change of Payment Election.  The Committee may, in
                  --------------------------------------
its discretion, permit a Participant to modify his or her payment election under
Section 3 of this Article VI at the time the Participant enters into a Deferral
Agreement for a Year; if accepted, any such modification shall apply to all
amounts credited to the Participant's Account under this Supplemental Savings
Incentive Plan. No such modification will be effective if made within one year
of the date of the Participant's termination of employment.

         5.       Death Benefits.  Upon the death of a Participant before a
                  --------------
complete distribution of his or her Account Balance, the Account Balance will be
paid to the Participant's Beneficiary in an immediate lump sum.

         6.       Acceleration upon Change in Control.
                  -----------------------------------

                  (a)  Notwithstanding any other provision of this Supplemental

         Savings Incentive Plan, the Account Balance of each Participant shall
         be distributed in a single lump sum within fifteen (15) calendar days
         following a "Change in Control."
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                                     - 6 -

                  (b)  For purposes of this Supplemental Savings Incentive Plan,
         a Change in Control shall include and be deemed to occur upon the
         following events:

                       (1) A tender offer or exchange offer is consummated for
                  the ownership of securities of Lockheed Martin Corporation
                  representing 25% or more of the combined voting power of
                  Lockheed Martin Corporation's then outstanding voting
                  securities entitled to vote in the election of directors of
                  Lockheed Martin Corporation.

                       (2) Lockheed Martin Corporation is merged, combined,
                  consolidated, recapitalized or otherwise reorganized with one
                  or more other entities that are not subsidiaries of Lockheed
                  Martin Corporation and, as a result of the merger,
                  combination, consolidation, recapitalization or other
                  reorganization, less than 75% of the outstanding voting
                  securities of the surviving or resulting corporation shall
                  immediately after the event be owned in the aggregate by the
                  stockholders of Lockheed Martin Corporation (directly or
                  indirectly), determined on the basis of record ownership as of
                  the date of determination of holders entitled to vote on the
                  action (or in the absence of a vote, the day immediately prior
                  to the event).

                       (3) Any person (as this term is used in Sections 3(a)(9)
                  and 13(d)(3) of the Exchange Act, but excluding any person
                  described in and satisfying the conditions of Rule 13d-1(b)(1)
                  thereunder), becomes the beneficial owner (as defined in Rule
                  13d-3 under the Exchange Act), directly or indirectly, of
                  securities of Lockheed Martin Corporation representing 25% or
                  more of the combined voting power of Lockheed Martin
                  Corporation's then outstanding securities entitled to vote in
                  the election of directors of Lockheed Martin Corporation.

                       (4) At any time within any period of two years after a
                  tender offer, merger, combination, consolidation,
                  recapitalization, or other reorganization or a contested
                  election, or any combination of these events, the "Incumbent
                  Directors" shall cease to constitute at least a majority of
                  the authorized number of members of the Board. For purposes
                  hereof, "Incumbent Directors" shall mean the persons who were
                  members of the Board immediately before the first of these
                  events and the persons who were elected or nominated as their
                  successors or pursuant to increases in the size of the Board
                  by a vote of at least three-fourths of the Board members who
                  were then Board members (or successors or additional members
                  so elected or nominated).

                       (5) The stockholders of Lockheed Martin Corporation
                  approve a plan of liquidation and dissolution or the sale or
                  transfer of substantially all of Lockheed Martin Corporation's
                  business and/or assets as an entirety to an entity that is not
                  a subsidiary of Lockheed Martin Corporation.

                  (c)      Notwithstanding the provisions of Section 6(a) of
         this Article VI, if a distribution in accordance with the provisions of
         Section 6(a) would result in a nonexempt transaction under Section
         16(b)
<PAGE>

                                     - 7 -

         of the Exchange Act with respect to any Section 16 Person, then the
         date of distribution to such Section 16 Person shall be delayed until
         the earliest date upon which the distribution either would not result
         in a nonexempt transaction or would otherwise not result in liability
         under Section 16(b) of the Exchange Act.

                  (d)      This Section 6 shall apply only to a Change in
         Control of Lockheed Martin Corporation and shall not cause immediate
         payout of an Account Balance in any transaction involving Lockheed
         Martin Corporation's sale, liquidation, merger, or other disposition of
         any subsidiary of the Company or of Lockheed Martin Corporation.

                  (e)      The Committee may cancel or modify this Section 6 at
         any time prior to a Change in Control. In the event of a Change in
         Control, this Section 6 shall remain in force and effect, and shall not
         be subject to cancellation or modification for a period of five years,
         and any defined term used in Section 6 shall not, for purposes of
         Section 6, be subject to cancellation or modification during the five
         year period.

         7.       Deductibility of Payments. In the event that the payment of
                  -------------------------
benefits in accordance with the Participant's election under Section 3 of this
Article VI would prevent the Company or Lockheed Martin Corporation from
claiming an income tax deduction with respect to any portion of the benefits
paid, the Committee shall have the right to modify the timing of distributions
from the Participant's Account as necessary to maximize the Company's or
Lockheed Martin Corporation's tax deductions. In the exercise of its discretion
to adopt a modified distribution schedule, the Committee shall undertake to have
distributions made at such times and in such amounts as most closely approximate
the Participant's election, consistent with the objective of maximum
deductibility for the Company or Lockheed Martin Corporation. The Committee
shall have no authority to reduce a Participant's Account Balance or to pay
aggregate benefits less than the Participant's Account Balance in the event that
all or a portion thereof would not be deductible by the Company or Lockheed
Martin Corporation.

         8.       Change of Law.  Notwithstanding anything to the contrary
                  -------------
herein, if the Committee determines in good faith, based on consultation with
counsel, that the federal income tax treatment or legal status of this
Supplemental Savings Incentive Plan has or may be adversely affected by a change
in the Internal Revenue Code, Title I of the Employee Retirement Income Security
Act of 1974, or other applicable law or by an administrative or judicial
construction thereof, the Committee may direct that the Accounts of affected
Participants or of all Participants be distributed as soon as practicable after
such determination is made, to the extent deemed necessary or advisable by the
Committee to cure or mitigate the consequences, or possible consequences of,
such change in law or interpretation thereof.

         9.       Tax Withholding.  To the extent required by law, the Company
                  ---------------
shall withhold from benefit payments hereunder, or with respect to any amounts
credited to a Participant's Account hereunder, any Federal, state, or local
income or payroll taxes required to be withheld and shall furnish the recipient
and the applicable government agency or agencies with such reports, statements,
or information as may be legally required. However, the amount of Deferred
Compensation or Matching Credits to be credited to a Participant's Account will
not be reduced or adjusted by the amount of any tax that the Company is required
to withhold with respect thereto.
<PAGE>

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                                   ARTICLE VII
                                   -----------

                         EXTENT OF PARTICIPANTS' RIGHTS
                         ------------------------------

         1.       Unfunded Status of Plan. This Supplemental Savings Incentive
                  -----------------------
Plan constitutes a mere contractual promise by the Company to make payments in
the future, and each Participant's rights shall be those of a general, unsecured
creditor of the Company. No Participant shall have any beneficial interest in
any specific assets that the Company may hold or set aside in connection with
this Supplemental Savings Incentive Plan. Notwithstanding the foregoing, to
assist the Company in meeting its obligations under this Supplemental Savings
Incentive Plan, the Company may set aside assets in a trust or trusts described
in Revenue Procedure 92-64, 1992-2 C.B. 422 (generally known as a "rabbi
trust"), and the Company may direct that its obligations under this Supplemental
Savings Incentive Plan be satisfied by payments out of such trust or trusts. It
is the Company's intention that this Supplemental Savings Incentive Plan be
unfunded for federal income tax purposes and for purposes of Title I of the
Employee Retirement Income Security Act of 1974.

         2.       Nonalienability of Benefits.  A Participant's rights to
                  ---------------------------
benefit payments under this Supplemental Savings Incentive Plan shall not be
subject in any manner to anticipation, alienation, sale, transfer, assignment,
pledge, encumbrance, attachment, or garnishment by creditors of the Participant
or the Participant's Beneficiary.

                                  ARTICLE VIII
                                  ------------

                            AMENDMENT OR TERMINATION
                            ------------------------

         1.       Amendment.  The Board may amend, modify, suspend or
                  ---------
discontinue this Supplemental Savings Incentive Plan at any time subject to any
shareholder approval that may be required under applicable law, provided,
however, that no such amendment shall have the effect of reducing a
Participant's Account Balance or postponing the time when a Participant is
entitled to receive a distribution of his or her Account Balance.

         2.       Termination.  The Board reserves the right to terminate this
                  -----------
Supplemental Savings Incentive Plan at any time and to pay all Participants
their Account Balances in a lump sum immediately following such termination or
at such time thereafter as the Board may determine; provided, however, that if a
distribution in accordance with the provisions of this Section 2 would otherwise
result in a nonexempt transaction under Section 16(b) of the Exchange Act, the
date of distribution with respect to any Section 16 Person shall be delayed
until the earliest date upon which the distribution either would not result in a
nonexempt transaction or would otherwise not result in liability under Section
16(b) of the Exchange Act.

                                   ARTICLE IX
                                   ----------
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                                     - 9 -

                                 ADMINISTRATION
                                 --------------

         1.       The Committee.  This Supplemental Savings Incentive Plan shall
                  -------------
be administered by the Management Development and Compensation Committee of the
Board or such other committee of the Board as may be designated by the Board and
constituted so as to permit this Supplemental Savings Incentive Plan to comply
with the requirements of Rule 16b-3 of the Exchange Act. The members of the
Committee shall be designated by the Board. A majority of the members of the
Committee (but not fewer than two) shall constitute a quorum. The vote of a
majority of a quorum or the unanimous written consent of the Committee shall
constitute action by the Committee. The Committee shall have full authority to
interpret the Supplemental Savings Incentive Plan, and interpretations of the
plan by the Committee shall be final and binding on all parties.

         2.       Delegation and Reliance. The Committee may delegate to the
                  -----------------------
officers or employees of Lockheed Martin Corporation or of the Company the
authority to execute and deliver those instruments and documents, to do all acts
and things, and to take all other steps deemed necessary, advisable or
convenient for the effective administration of this Supplemental Savings
Incentive Plan in accordance with its terms and purpose, except that the
Committee may not delegate any authority the delegation of which would cause
this Supplemental Savings Incentive Plan to fail to satisfy the applicable
requirements of Rule 16b-3. In making any determination or in taking or not
taking any action under this Supplemental Savings Incentive Plan, the Committee
may obtain and rely upon the advice of experts, including professional advisors
to Lockheed Martin Corporation or the Company. No officer of the Company who is
a Participant hereunder may participate in any decision specifically relating to
his or her individual rights or benefits under the Supplemental Savings
Incentive Plan.

         3.       Exculpation and Indemnity.  Neither Lockheed Martin
                  -------------------------
Corporation or the Company nor any member of the Board or of the Committee, nor
any other person participating in any determination of any question under this
Supplemental Savings Incentive Plan, or in the interpretation, administration or
application thereof, shall have any liability to any party for any action taken
or not taken in good faith under this Supplemental Savings Incentive Plan or for
the failure of the Supplemental Savings Incentive Plan or any Participant's
rights under the Supplemental Savings Incentive Plan to achieve intended tax
consequences, to qualify for exemption or relief under Section 16 of the
Exchange Act and the rules thereunder, or to comply with any other law,
compliance with which is not required on the part of Lockheed Martin Corporation
or the Company.

         4.       Facility of Payment.  If a minor, person declared incompetent,
                  -------------------
or person incapable of handling the disposition of his or her property is
entitled to receive a benefit, make an application, or make an election
hereunder, the Committee may direct that such benefits be paid to, or such
application or election be made by, the guardian, legal representative, or
person having the care and custody of such minor, incompetent, or incapable
person. Any payment made, application allowed, or election implemented in
accordance with this Section shall completely discharge the Company, Lockheed
Martin Corporation and the Committee from all liability with respect thereto.
<PAGE>

                                     - 10 -

         5.       Proof of Claims.  The Committee may require proof of the
                  ---------------
death, disability, incompetency, minority, or incapacity of any Participant or
Beneficiary and of the right of a person to receive any benefit or make any
application or election.

         6.       Claim Procedures.  The procedures when a claim under this
                  ----------------
Supplemental Savings Incentive Plan is denied by the Committee are as follows:

                  (a)      The Committee shall:

                           (i)   notify the claimant within a reasonable time of
                                 such denial, setting forth the specific reasons
                                 therefor; and

                           (ii)  afford the claimant a reasonable opportunity
                                 for a review of the decision.

                  (b)      The notice of such denial shall set forth, in
                           addition to the specific reasons for the denial, the
                           following:

                           (i)   identification of pertinent provisions of this
                                 Supplemental Savings Incentive Plan;

                           (ii)  such additional information as may be relevant
                                 to the denial of the claim; and

                           (iii) an explanation of the claims review procedure
                                 and advice that the claimant may request an
                                 opportunity to submit a statement of issues and
                                 comments.

                  (c)      Within sixty days following advice of denial of a
                           claim, upon request made by the claimant, the
                           Committee shall take appropriate steps to review its
                           decision in light of any further information or
                           comments submitted by the claimant. The Committee may
                           hold a hearing at which the claimant may present the
                           basis of any claim for review.

                  (d)      The Committee shall render a decision within a
                           reasonable time (not to exceed 120 days) after the
                           claimant's request for review and shall advise the
                           claimant in writing of its decision, specifying the
                           reasons and identifying the appropriate provisions of
                           the Supplemental Savings Incentive Plan.
<PAGE>

                                     - 11 -

                                    ARTICLE X
                                    ---------

                      GENERAL AND MISCELLANEOUS PROVISIONS
                      ------------------------------------

                  1.       Neither this Supplemental Savings Incentive Plan nor
a Participant's Deferral Agreement, either singly or collectively, shall in any
way obligate the Company to continue the employment of a Participant with the
Company, nor does either this Supplemental Savings Incentive Plan or a Deferral
Agreement limit the right of the Company at any time and for any reason to
terminate the Participant's employment. In no event shall this Supplemental
Savings Incentive Plan or a Deferral Agreement, either singly or collectively,
by their terms or implications constitute an employment contract of any nature
whatsoever between the Company and a Participant. In no event shall this
Supplemental Savings Incentive Plan or a Deferral Agreement, either singly or
collectively, by their terms or implications in any way limit the right of the
Company to change an Eligible Employee's compensation or other benefits.

                  2.       Any amount credited to a Participant's Account under
this Supplemental Savings Incentive Plan shall not be treated as compensation
for purposes of calculating the amount of a Participant's benefits or
contributions under any pension, retirement, or other plan maintained by the
Company or Lockheed Martin Corporation, except as provided in such other plan.

                  3.       Any written notice to the Company referred to herein
shall be made by mailing or delivering such notice to the Company at 6560 Rock
Spring Drive, Bethesda, Maryland 20817, to the attention of the Vice President,
Human Resources. Any written notice to a Participant shall be made by delivery
to the Participant in person, through electronic transmission, or by mailing
such notice to the Participant at his or her place of residence or business
address.

                  4.       In the event it should become impossible for the
Company or the Committee to perform any act required by this Supplemental
Savings Incentive Plan, the Company or the Committee may perform such other act
as it in good faith determines will most nearly carry out the intent and the
purpose of this Supplemental Savings Incentive Plan.

                  5.       By electing to become a Participant hereunder, each
Eligible Employee shall be deemed conclusively to have accepted and consented to
all the terms of this Supplemental Savings Incentive Plan and all actions or
decisions made by the Company, Lockheed Martin Corporation, the Board, or
Committee with regard to the Supplemental Savings Incentive Plan.

                  6.       The provisions of this Supplemental Savings Incentive
Plan and the Deferral Agreements hereunder shall be binding upon and inure to
the benefit of the Company, its successors, and its assigns, and to the
Participants and their heirs, executors, administrators, and legal
representatives.

                  7.       A copy of this Supplemental Savings Incentive Plan
shall be available for inspection by Participants or other persons entitled to
benefits under the plan at reasonable times at the offices of the Company.
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                                     - 12 -

                  8.       The validity of this Supplemental Savings Incentive
Plan or any of its provisions shall be construed, administered, and governed in
all respects under and by the laws of the State of Maryland, except as to
matters of federal law. If any provisions of this instrument shall be held by a
court of competent jurisdiction to be invalid or unenforceable, the remaining
provisions hereof shall continue to be fully effective.

                  9.       This Supplemental Savings Incentive Plan and its
operation, including, but not limited to, the mechanics of deferral elections,
the issuance of securities, if any, or the payment of cash hereunder is subject
to compliance with all applicable federal and state laws, rules and regulations
(including but not limited to state and federal insider trading, registration,
reporting and other securities laws) and such other approvals by any listing,
regulatory or governmental authority as may, in the opinion of counsel for
Lockheed Martin Corporation or the Company, be necessary or advisable in
connection therewith.

                  10.      This Supplemental Savings Incentive Plan is intended
to constitute an "excess benefit plan" within the meaning of Rule 16b-3(b)(2)
under the Exchange Act, and it shall be construed and applied accordingly. It is
the intent of the Company that this Supplemental Savings Incentive Plan satisfy
and be interpreted in a manner that, in the case of Participants who are or may
be Section 16 Persons, satisfies any applicable requirements of Rule 16b-3 of
the Exchange Act or other exemptive rules under Section 16 of the Exchange Act
and will not subject Section 16 Persons to short-swing profit liability
thereunder. If any provision of this Supplemental Savings Incentive Plan would
otherwise frustrate or conflict with the intent expressed in this Section 10,
that provision to the extent possible shall be interpreted and deemed amended so
as to avoid such conflict. To the extent of any remaining irreconcilable
conflict with this intent, the provision shall be deemed disregarded. Similarly,
any action or election by a Section 16 Person with respect to the Supplemental
Savings Incentive Plan to the extent possible shall be interpreted and deemed
amended so as to avoid liability under Section 16 or, if this is not possible,
to the extent necessary to avoid liability under Section 16, shall be deemed
ineffective. Notwithstanding anything to the contrary in this Supplemental
Savings Incentive Plan, the provisions of this Supplemental Savings Incentive
Plan may at any time be bifurcated by the Board or the Committee in any manner
so that certain provisions of this Supplemental Savings Incentive Plan are
applicable solely to Section 16 Persons. Notwithstanding any other provision of
this Supplemental Savings Incentive Plan to the contrary, if a distribution
which would otherwise occur is prohibited or proposed to be delayed because of
the provisions of Section 16 of the Exchange Act or the provisions of the
Supplemental Savings Incentive Plan designed to ensure compliance with Section
16, the Section 16 Person involved may affirmatively elect in writing to have
the distribution occur in any event; provided that the Section 16 Person shall
concurrently enter into arrangements satisfactory to the Committee in its sole
discretion for the satisfaction of any and all liabilities, costs and expenses
arising from this election.
<PAGE>

                                     - 13 -

                                   ARTICLE XI
                                   ----------

                                 EFFECTIVE DATE
                                 --------------

                  The effective date of this Supplemental Savings Incentive Plan
is May 1, 2001.<PAGE>

                                                                  Exhibit 10(tt)

                               RETENTION AGREEMENT
                               -------------------

         AGREEMENT dated January 29, 1997, between Lockheed Martin Corporation
("LMC") and ___________ (the "Executive").

         WHEREAS, the Executive was previously employed in the capacity of
__________ by Loral Corporation ("Loral" or the "Business") and the Executive is
considered to be one of the key executives of the Business; and

         WHEREAS Lockheed Martin Corporation believes the continued employment
of the Executive will contribute to the success of the consolidation of the
Business with LMC and its various subsidiaries (collectively the "Company") and
the Executive is willing to provide such services.

         NOW, THEREFORE, in consideration of the mutual promises contained
herein and other good and valuable considerations, the parties hereby agree as
follows:

1.       Term of Commitment
         ------------------
         Subject to the condition that the Executive has provided, to the
satisfaction of LMC at its sole discretion, leadership to the Business prior to
April 23, 1996 which enhanced the success of the consolidation of the Business
with LMC, the Executive's "term of commitment" under this agreement shall
commence on April 23, 1996 and shall terminate on April 30, 1998.

2.       Nature of Company Commitment
         ----------------------------
         (a)      The Company shall provide the Executive commencing on April
23, 1996 with a comparable job to the one held at Loral, in terms of basic
skills and experience as well as approximately the same position level, status
or reporting level. The powers and duties of the Executive are to be more
specifically determined and set by the Company from time to time.

         (b)      The Executive agrees to serve the Company for the term
specified in Paragraph 1. The Executive agrees to devote full business time
during normal business hours to the business affairs of the Company and to use
best efforts to promote the interests of the Company and to perform faithfully
and efficiently the responsibilities assigned in accordance with the terms of
this agreement to the extent necessary to discharge such responsibilities,
except for periods of vacation and sick leave or other legitimate absences under
Company benefit plans and established practices.

3.       Compensation
         ------------
         (a)      Base Salary.  During the term of employment, the Executive
                  -----------
shall receive an annual base salary (the "Base Salary"), payable in equal
monthly, semi-
<PAGE>

monthly or biweekly installments, at an annual rate at least equal to the
aggregate annual base salary payable to the Executive by Loral as of the date
hereof. The Base Salary may be increased at any time and from time to time by
action of the Board of Directors of the Company, any committee thereof or any
individual having authority to take such action, in accordance with the
Company's normal practices. Any increase in the Base Salary shall not serve to
limit or reduce any other obligation of the Company hereunder.

         (b)      Annual Bonus.  In addition to the Base Salary, the Executive
                  ------------
shall be awarded for each fiscal year during the term of this Agreement, an
annual bonus (pursuant to any bonus plan or program of the Company, any
incentive compensation plan or program of the Company, or otherwise) in cash
consistent with the terms of the Plan and consistent with the performance of the
Executive and the organization to which the Executive is assigned.

         (c)      Additional Bonus.  In the event the Executive is still an
                  ----------------
employee of the Company on April 30, 1998, the Company shall pay the Executive
an additional bonus equal to the Executive's then current annualized base
salary.

4.       Conflicting Interests
         ---------------------

         During the term of this Agreement, the Executive agrees not to accept
any other employment or engage in any outside business or enterprise without the
Company's written consent. It is understood, however, that outside activities
are not prohibited provided they are legal; do not impair or interfere with the
conscientious performance of Company duties and responsibilities; do not involve
the misuse of the Company's influence, facilities or other resources; are
consistent with the Company's Code of Ethics and Standards of Conduct; and do
not reflect negatively upon the good name and reputation of the Company. The
Executive agrees to sign a Conflict of Interest statement with the Company.
Should the Executive terminate employment under this paragraph, the Additional
Bonus will be forfeited as specified in Section 7 below.

5.       Disclosure of Information
         -------------------------

         During the term of this Agreement or thereafter, the Executive shall
not reveal any confidential information of the Company to anyone except those
employees of the Company entitled to receive such information.

6.       Termination at Will
         -------------------

         Nothing in this Agreement limits the ability of either the Executive or
the Company to terminate the employment relationship at will.

7.       Resignation or Termination for Cause
         ------------------------------------

              2
<PAGE>

         If, prior to the completion of the term of commitment, the Executive
resigns or the Executive's employment is terminated either by the Company or by
the Executive, this Agreement will no longer be in effect. No further payments
under this Agreement will be paid. The Executive's right to any termination
benefits shall be determined solely under the Loral Corporation Supplemental
Severance Program.

8.       Death or Disability of the Executive.
         -------------------------------------

         Notwithstanding any provision to the contrary, this Agreement will
automatically terminate upon death or retirement of the Executive. Any illness
or disability will be dealt with in accordance with the Company benefit plan
provisions.

9.       Non-waiver of Other Rights or Remedies
         --------------------------------------

         No actions taken by the Company under the terms and conditions of this
Agreement shall be deemed to be a waiver of any of its other rights or remedies
available by taw, in equity or otherwise.

10.      Assumption and Assignability of Agreement
         -----------------------------------------

         The Executive may not delegate, subcontract or otherwise transfer or
assign his rights or obligations under this Agreement.

11.      Entire Agreement
         ----------------

         This Agreement supersedes all prior contracts and understandings
between the Executive and the Business or the Company related to continuation of
employment, and may not be modified, changed or altered except in writing signed
by both the Executive and the Company.

12.      Confidentiality
         ---------------

         The Executive shall keep all of the terms and conditions in the
Agreement, including amounts, strictly confidential and shall not disclose them
to any person at any time other than the Executive's spouse, legal and/or
financial advisor(s). Failure to comply with the terms of this Paragraph 12
constitutes a breach of this Agreement and renders the Agreement null and void.

              3
<PAGE>

13.      Governing Law
         -------------

         This Agreement shall be governed in all respects by and in accordance
with the laws of the State of Maryland.

              4

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