| |
Integrated
air and space operations have been at the forefront of the success of
the United States military in recent conflicts. In the current century,
this integration will become more tightly coupled to the point that a
seamless air and space operation will be a reality. This seamless operation
will deliver capability at lower cost, provide greater mission duration
over the battlefield, and ensure access anywhere on the planet whenever
required.
Expendable unmanned platforms launch satellite payloads into space or
deliver munitions with precision to targets on the ground. Air Force Space
Command is transitioning its current mix of medium and heavy lift expendable
boosters to the new Evolved Expendable Launch Vehicle for space launch.
These vehicles support routine launch operations and provide a greater
capability for assured access to space with reduced cost.
Nevertheless, expendable launch vehicles may have reached maturity levels
where only modest improvements may be made. On the other hand, air platforms
that deliver munitions will enjoy increased speed, mission duration time
over the battlefield, and targeting accuracy.
In the near future, munitions hovering over the battlefield will be data-linked
with other air and space assets and will provide a continuous presence.
Upon release, these munitions will strike targets of interest quickly
and accurately. Further out in this century, these missiles will strike
from extremely long ranges (eventually intercontinental) with hypersonic
speeds (greater than Mach 4) to provide true responsiveness, while keeping
higher-value platforms out of increasingly hostile environments. The key
enabling technologies are found in mechanical systems, power systems,
and propulsion system components such as extended-life, high-temperature
turbines and integrated, thermally managed fuel systems.
 |
| When eyes in the sky aren't human,
they can be ordered into dangerous situations without risking the
loss of life, and they can by nature stay awake longer. |
Reusable launch platforms are being studied for possible implementation.
One such system that has been under study within the Air Force Research
Laboratory is the Space Operations Vehicle. The SOV is expected to be
a two-stage launch system with aircraft-like operations and lower cost
to orbit for payloads less than 20,000 pounds.
One payload projected to be carried by the SOV is the Space Maneuver Vehicle,
which could remain in orbit up to one year and then be landed. It could
be refitted with more up-to-date capability and made ready for relaunch
when needed.
In certain scenarios, more than 30,000 pounds of suborbital conventional
munitions could also be employed by the Space Operations and Space Maneuver
vehicle system. It allows direct strike from the continental United States
within hours to minutes, depending upon alert status.
back to the article
home |
features |
news update |
marketplace |
departments |
about ME |
back issues |
ASME |
site search
© 2003 by The American Society
of Mechanical Engineers
|