An Overview of the Experimental 50-cm Laser Ramjet (X-50LR) Program

Abstract

In January 2001, the X-50LR program was initiated to scale the Lightcraft concept ultimately to a 50-cm focal diameter, and to launch a 50 cm, fully functional vehicle, into space in either a sounding rocket or suborbital trajectory by the end of FY 2009. The current work involves scaling from a 10-cm aluminum Lightcraft to a composite 25-cm laser ramjet vehicle (X-25LR). An overview and status of this program will be given in terms of the various efforts that support this development. These efforts will include testing at the High Energy Laser System Test Facility (HELSTF), New Mexico; some results of the laser launch system study by Flight Unlimited; the development of silicon carbide materials for X-25LR parabolic reflectors by Trex Enterprises; supporting research by Air Force Office of Scientific Research (AFOSR); the different facets of attitude control in a small business program with Polaris Sensors Technology; continuing development of a launch model at The Pennsylvania State University; and, the development of a thrust measurement technique, and the use of a "mini-thruster" for research with The University of Alabama, Huntsville, in collaboration with the AFRL. This paper will be followed by a number of papers giving additional details of the efforts briefly overviewed in this presentation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 13, 2005
Accession Number
ADA442467

Entities

People

  • Carl William Larson
  • Franklin B. Mead Jr.
  • Sean D. Knecht

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Diameters
  • Efficiency
  • Energy
  • Engineering
  • Geometry
  • Lasers
  • Materials
  • Measurement
  • Nozzles
  • Payload
  • Plug Nozzles
  • Rockets
  • Test And Evaluation
  • Test Facilities
  • Thrusters

Fields of Study

  • Physics

Readers

  • Defense Technology Research and Development.
  • Missile Defense Systems.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Space
  • Space - Hall-Effect Thruster
  • Space - Space Objects