NASA Langley Research Center, MS 144, Industry Assistance Office Hampton, Va. 23681-0001

70 -- ROTORCRAFT ANALYSIS SOL 1-128-DAA.1777 POC Cynthia Dea, 804-864-2440. This Center intends to procure, on a Sole Source basis, from following firm, Continuum Dynamics, for the following goods or services: This requirement is for the modification of an existing analysis proprietary to Continuum Dynamics, Inc. This analysis computes the flowfield and surface pressures of rotorcraft configurations. The unique feature of this analysis is the use of curved vortex elements to represent the rotor wake and a method of accounting for the multiple length scales involved with wake-surface interactions using the method of analytical-numerical matching. Analysis of a sample case is required. Delivery of the completed analytical tool and supporting documentation is required. This procurement is being conducted under the Simplified Acquisition Procedures. Should any other offeror be able to provide the above goods or services, send adequate information and literature to support this contention to NASA, Langley Research Center, Mail Stop 138, Hampton, VA 23681-0001. This information, citing the above solicitation number, should be received within 15 days of the publication date of this notice. All timely received information will be considered. (0157)

Loren Data Corp. http://www.ld.com (SYN# 0427 19950607\70-0016.SOL)