Engineering topics

Richards, Steve

Publications and source records attributed to Richards, Steve.

5 records

NASA NTRS2010

JANNAF Lessons Learned Panel Discussion

The difference between the AS-510 observed and predicted separation distance is attributed to a greater F-1 engine "tail off" impulse than that used in the separation distance prediction. . The F-1 thrust decay was normal and not appreciably different from previous (AS-505 through 509) flights. . Analysis indicates that with an S-IC stage having only four retro motors, failure of one retro motor to ignite would result in marginal separation distances and, in the 3-sigma case, re-contact of the two stages. . S-IC-11 and subsequent flight stages were equipped with eight retro motors rather than the planned four.

Richards, Steve↗

NASA NTRS2001

Space Launch Initiative Propulsion Projects Office Overview Briefing

The goal of this Space Launch Initiative is for NASA to meet its future space flight needs, including human access to space, using commercial launch vehicles that will improve safety and reliability and reduce cost. The topics include: 1) Second Generation RLV Program Overview; 2) Space Launch Initiative (SLI) Investment Areas; 3) SLI Organizational Summary; 4) Propulsion Projects Overview; 5) Current Propulsion Content; and 6) Critical Needs Roadmap. This paper is presented in viewgraph form.

Lyles, Garry↗

NASA NTRS2000

2nd Generation Reusable Launch Vehicle NASA Led Propulsion Tasks

Design, development and test of a 2nd generation Reusable Launch Vehicle (RLV) is presented. This current paper discusses the following: 2nd Generation RLV Propulsion Project, Overview of NASA Led Tasks in Propulsion, Gen2 Turbo Machinery Technology Demonstrator, and Combustion Devices Test Bed, GRCop-84 Sheet For Combustion Chambers, Nozzles and Large Actively Cooled Structures

Richards, Steve↗

NASA NTRS1992

National Launch System Advanced Development - Propulsion

The propulsion area Advanced Development Program (ADP) activities of the National Launch System (NLS) are presented and an overview of recent accomplishments are discussed. The ADP is organized into five areas: propulsion, structures/materials/manufacturing, avionics/software, aerothermodynamics/recovery, and operations/subsystems. Information is given for the liquid propulsion tasks supporting the development of the Space Transportation Main Engine (STME), the liquid propulsion test facilities that support STME subsystem and component testing, and solid propulsion tasks that maintain the option to utilize strap-on solid boosters for the smaller vehicles in the NLS family.

Richards, Steve↗

NASA NTRS1991

Liquid rocket engine flight certification

The following subject areas are covered: current rocket engine certification process; certification issues; engine characteristics; engine design and mission requirements; structural design criteria; structural design factors of safety; component/subsystem testing; system level development tests; certification/qualification tests; observations; and proposed actions/programs.

Richards, Steve↗