Exhibit 10

                          Arrangements with Executive


     In November 1996, the registrant entered into an arrangement with Lawrence
H. Tveten ("Executive") in connection with pending negotiations to sell
registrant's Marine Systems Group (the "Sale Transaction"), of which Executive
was the Group Vice President. In connection with Executive's expected retirement
from registrant, and in consideration for Executive's continued service to
registrant during the pendency of the Sale Transaction, it was agreed that:

     .  Executive shall be entitled to participate in registrant's Management
        Incentive Plan for the fiscal year ending March 31, 1997, through the
        earliest of the closing of the Sale Transaction, discontinuance of
        Executive's services to registrant, or March 31, 1997.

     .  Executive shall be entitled to participate in registrant's Flexible
        Perquisite Account Program and registrant's financial counseling
        program, in each case through the earlier of the discontinuance of
        Executive's services to registrant, or March 31, 1997.

     .  A stock option installment of 2,667 shares, exercisable at $37.375 per
        share, that would otherwise be forfeited in connection with Executive's
        retirement, would be allowed to vest and become exercisable on June 1,
        1997; and a stock option installment of 1,000 shares, exercisable at
        $46.125 per share, that would otherwise be forfeited in connection with
        Executive's retirement, would be allowed to vest and become exercisable
        on May 21, 1997.

     In December 1996, the registrant also entered into an incentive arrangement
with Executive in connection with the Sale Transaction. In consideration for
Executive's agreement to, among other things, maximize the value to registrant
of the Sale Transaction, the registrant agreed to pay Executive an amount equal
to one percent of the amount by which the purchase price paid by the buyer in
the Sale Transaction exceeds $140,000,000.