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Defense Intelligence Reference Document Laser Lightcraft Nanosatellites

Defense Intelligence Agency · 77 pages · text from the file's own layer

This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 1 November 2010, was produced under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It describes nanosatellite technologies and proposes launching nanosats into orbit with laser Lightcraft propulsion. It also covers a weapon mission selection study and multi-megawatt laser options. The author recommends that the Department of Defense and NASA bring Lightcraft R&D back to the United States and restart the X-50LR flight demonstration program.

  • p. 5 …the per-unit cost will be reduced to a small fraction of UNCLASSIFIED//F8A 8FFIQIOP !PSS…
  • p. 8 …Advanced microelectronic solutions are being developed to meet these challenges. The microelectronics developed must be modular…
  • p. 9 …The packaging method that will be chosen must have a small volume and small footprint (6…
  • p. 11 …This reduction will be accomplished by leveraging recent successful tests of a small cryogenic two-phase…
  • p. 13 …methods should be developed to verify quality and structural performance by testing a small subset of…
  • p. 22 …The dry spacecraft mass can be further reduced by two orders of magnitude, and thus the…
  • p. 24 …further indicated that small COTS chemical propulsion systems, with sufficient thrust, would be about a factor…
  • p. 32 …Lightcraft takeoff masses no more than about 20 kg can be accelerated to orbital velocities by…
  • p. 37 …Eliminating such satellite threats has not been examined in detail, but they could be rapidly eliminated…
  • p. 40 …A generic description would be a constellation of small spacecraft each performing its separate function, but…
  • p. 41 UNCLASSIFIED/,, OK 01 I ICIAE 652 one I These array functions can be made coherent over…
  • p. 42 …The coverage spot diameter can be varied by choosing the diameter of the array that is…
  • p. 43 …The relative positions of these picosat elements changes slowly, and only small and infrequent stationkeeping propulsive…
  • p. 44 …can be emplaced and replaced incrementally using laser- powered Lightcraft launch vehicles or even small conventional…
  • p. 45 …small as 40 cm on the ground from GEO. Its field of view can be scanned…
  • p. 50 …use N2, CO2, and small quantities of H2. • Subscale testing will be used to anchor the…
  • p. 53 …kW) and compact size need to be mounted on small tactical airborne platforms like the C…
  • p. 72 …This would be a constellation of small spacecraft each performing its separate function, but these functions…
Air-to-Space
(Ballistic Threats)
Air Launch:
H~12 km
V~M0.8
........... I
Enemy/
Ballistic Missiles
JI
Figure 15. Air-to-Space Concept: Appropriate rotation and translation of a high-energy laser
beam, emanating from a moving aircraft, guides and propels a Lightcraft toward a nearly
head-on collision with an incoming ballistic missile; intermittently, the laser illuminates the
target for guidance updates and for terminal semi-active seeker homing and end-game
maneuvering [26l.
ASSUMED LASER AND LIGHTCRAFT LIMITATIONS
Beamed power levels achievable with envisioned high-energy laser technology are
assumed to be no more than about 10 MW for ground/sea-based lasers, and no more
than about 2.0 MW for the much lighter and smaller airborne lasers installable on
Boeing 747, B-1 Lancer, or C-130 subsonic aircraft. Lightcraft takeoff masses no more
than about 20 kg can be accelerated to orbital velocities by maximum ground/sea-
based laser power levels, and Lightcraft takeoff masses no more than about 4 kg to 8
kg, depending on the magnitude of velocity and acceleration needed, can be
accelerated to very high velocities by the lower allowable masses and power levels of
airborne lasers.
LIGHTCRAFT TRAJECTORY AND MISSION LIMITATIONS
Identified trajectory and mission limitations C26l are:
• Small allowable angle between centerlines of the laser beam and Lightcraft
vehicle axes before significant thrust reduction occurs.
• Small allowable angles-of-attack (angle between Lightcraft centerline and velocity
vector) before significant thrust reduction occurs.
• Limited capability for engaging multiple missile or aircraft threats in allowable
time interval because of relatively long laser beam-riding time against each
threat.
Additional Lightcraft hardware needed for some tactical missions [26l include:
28
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 77 pages are in the text index: search them above, or from the library's search.