Exhibit 10.19

MODIFICATION NUMBER 1 TO AMENDMENT TO PARTNERSHIP
AGREEMENT OF LAUREL TECHNOLOGIES PARTNERSHIP

This Modification Number 1 to Amendment to Partnership Agreement of Laurel Technologies Partnership (“Modification Number 1”) is dated as of December 30 th,  2005 (the “Effective Date”), and is by and between Laurel Technologies, Inc., now known as Sunburst Management, Inc., a Pennsylvania corporation (“Laurel”), and DRS Systems Management Corporation, a Delaware corporation (“DRS”).

Laurel and DRS may also be referred to individually as a “Party” or collectively as the “Parties.”

WHEREAS, by way of a Partnership Agreement dated December 13, 1993, the Parties formed a Partnership for the Business and related activities necessary and appropriate to effect the Business; and

WHEREAS, by Amendment to Partnership Agreement of Laurel Technologies Partnership dated August 3, 1999 (the “Amendment”), the Parties agreed, inter alia, to undertake activities and programs the income from which would not be allocated in accordance with the Partnership Percentage Interest; and

WHEREAS, the Parties agree to further expand the concepts adopted in the Amendment through this Modification Number 1.

NOW, THEREFORE, in consideration of the mutual covenants set forth herein, and for good and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Laurel and DRS hereby agree as follows:

1.                 Section 1.2 is revised by adding 1.2(a)(1) as follows: “Assigned Indirect Costs” shall mean the portion of those costs classified as either Allocable Indirect Costs or Indirect Costs assigned to the DRS requested services pursuant to mutual agreement between the Partnership and specifically identified at Exhibit D as “DRS Requested Services.”

2.                 A new Section 2.3 is added as follows:

2.3         DRS Requested Services

2.3.1      Should DRS request the use of Partnership services (e.g., labor and / or facilities) for use on other DRS initiatives or projects not part of the Partnership Business base (“DRS Requested Services”) which are not considered Partnership Programs, DRS Allocated Programs or DRS Requested Programs but related to administrative / engineering activities that may develop manufacturing opportunities for the Partnership, DRS shall submit a written notice to Laurel of its desire to do so at least seven (7) days prior to causing the Partnership to commence work on such services. If, within seven (7) days after receipt of such notice, Laurel does not deliver a written objection the