NUCLEAR THERMAL PROPULSION DESIGN ANALYSIS TOOL

An accurate, stand alone, preliminary Nuclear Thermal Propulsion (NTP)
engine system design analysis tool is required to support current and
future Space Exploration Initiative (SEI) propulsion and vehicle design
studies. Currently available NTP engine design models were developed
during the NERVA program in the 1960s and early 1970s and are highly
unique to that design or are modifications of current liquid propulsion
system models. Present NTP engine-based liquid design models lack the
integrated design of key NTP engine design features in areas such as
reactor, shielding, multi-propellant capability, and multi-redundant pump
feed fuel systems.

NESS is written in FORTRAN 77 for DEC VAX series computers running VMS and
IBM PC series computers running MS-DOS using the Lahey FORTRAN compiler
F77L/EM-32 v5.01 or later. It requires a minimum of 1.4Mb of virtual RAM
under VMS and 1.5Mb of RAM under MS-DOS. Under both platforms, NESS
requires 4Mb of disk space for compilation and linking. Sample input and
output data are included. The standard distribution medium for NESS is a
set of two 5.25 inch 1.2Mb MS-DOS format diskettes. NESS is also available
on a 1600 BPI 9-track magnetic tape in DEC VAX BACKUP format or on a TK50
tape cartridge in DEC VAX BACKUP format.

NASA's Software Technology Transfer Center
COSMIC, The University of Georgia
382 East Broad St, Athens, GA 30602-4272
(706) 542-3265;  Fax: (706) 542-4807
Internet Email: service@cossack.cosmic.uga.edu

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