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Space Shuttle Main Engine: NASA Has Not Evaluated the Alternate Fuel Turbopump Costs and Benefits: Nsiad-94-54 - Tapa blanda

 
9781287294443: Space Shuttle Main Engine: NASA Has Not Evaluated the Alternate Fuel Turbopump Costs and Benefits: Nsiad-94-54
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ISBN 10: 1287294448 ISBN 13: 9781287294443
Editorial: BiblioGov, 2013

Sinopsis

GAO reviewed the National Aeronautics and Space Administration's (NASA) planned development of an alternate high pressure fuel turbopump for the Space Shuttle's main engines, focusing on whether NASA has adequately analyzed cost, performance, and expected program benefits in comparison to other alternatives before resuming its development of the alternate pump.

GAO found that: (1) the current engine pump is safe and reliable if existing safety controls are effectively implemented; (2) NASA supports continued development of the alternate pump because of safety concerns about some aspects of the current pump's design; (3) NASA has not analyzed the costs and benefits of modifying the existing fuel pump because a major upgrade will require an expensive full certification test; (4) NASA has not determined what contribution the alternative fuel pump will make to the Shuttle's reliability in conjunction with other engine safety improvements; (5) the alternate fuel pump will require extensive testing and possible redesign as problems occur; (6) NASA did not analyze the costs and benefits of modifying the existing fuel pump and other alternatives before resuming development of the alternate pump; and (7) NASA expects that the alternate pump will reduce operating costs by decreasing inspections and maintenance, but it has not estimated the expected savings.

"Sinopsis" puede pertenecer a otra edición de este libro.

Reseña del editor

GAO reviewed the National Aeronautics and Space Administration's (NASA) planned development of an alternate high pressure fuel turbopump for the Space Shuttle's main engines, focusing on whether NASA has adequately analyzed cost, performance, and expected program benefits in comparison to other alternatives before resuming its development of the alternate pump.

GAO found that: (1) the current engine pump is safe and reliable if existing safety controls are effectively implemented; (2) NASA supports continued development of the alternate pump because of safety concerns about some aspects of the current pump's design; (3) NASA has not analyzed the costs and benefits of modifying the existing fuel pump because a major upgrade will require an expensive full certification test; (4) NASA has not determined what contribution the alternative fuel pump will make to the Shuttle's reliability in conjunction with other engine safety improvements; (5) the alternate fuel pump will require extensive testing and possible redesign as problems occur; (6) NASA did not analyze the costs and benefits of modifying the existing fuel pump and other alternatives before resuming development of the alternate pump; and (7) NASA expects that the alternate pump will reduce operating costs by decreasing inspections and maintenance, but it has not estimated the expected savings.

"Sobre este título" puede pertenecer a otra edición de este libro.

Editorial
BiblioGov
Año de publicación
2013
Idioma
Inglés
ISBN 10 
1287294448
ISBN 13 
9781287294443
Encuadernación
Tapa blanda
Número de páginas
24
Contacto del fabricante
no disponible
Persona responsable
no disponible