Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 49
Acronyms, Abbreviations, and
Technical Terms
ALS
ESA
EVA
g;l-g
GNP
HEI
LEO
NASA
NASP
NRC
NSC
SEALAR
SSF
SSME
STS
aerobraking
cross range capability
Advanced Launch System
European Space Agency
extra vehicular activity
gravity; equivalent to one times the acceleration
of gravity
Gross National Product
Human Exploration Initiative
low Earth orbit
National Aeronautics and Space Administra-
tion
National Aerospace Plane
National Research Council
National Space Council
Sea Launch and Recovery vehicle
Space Station Freedom
Space Shuttle Main Engine
Space Transportation System
Use of a planet's upper atmosphere as a brake
to slow the entry of a spaceship, rather than
braking by propulsive methods.
The maneuvering capability of a spacecraft in
orbit as well as after reentering the Earth's
atmosphere. The shuttle, for example, has rea-
sonably good cross range capability, due largely
49
OCR for page 50
50 ACRONYMS, ABBREVL4TIONS, ED TECHNICS TEES
to having wings, while the reentry capsules em-
ployed in the early US space program had lit-
tle maneuverability and were dependent on the
trajectory of their orbit.
cryogenic fuels Fuels stored at very low temperatures to max-
imize the energy density per unit volume of
storage capacity. The fuels typically are gases
at room temperature, but are stored at temper-
atures at which they are liquids.
specific impulse The measure of an engine's efficiency; the ratio
of pounds of thrust produced per pounds of
fuel flowing through the engine each second.
Representative terms from entire chapter:
range capability
