NASA Taxonomy

  1. vacuum arc melting USE Metals and Metallic Materials
  2. vacuum chemistry USE Inorganic, Organic and Physical Chemistry
  3. vacuum forming USE Mechanical Engineering
  4. vacuum technology USE Engineering (General)
  5. vacuum test facilities USE Ground Support Systems and Facilities (Space)
  6. vacuum tubes USE Electronics and Electrical Engineering
  7. Validators
  8. valves USE Mechanical Engineering
  9. Valves, Lines & Ducts
  10. Van Allen belts USE Space Radiation
  11. vaporization of propellants and fuels USE Propellants and Fuels
  12. variational methods USE Numerical Analysis
  13. VCL USE Vegetation Canopy Lidar
  14. vector control engines (spacecraft) USE Spacecraft Propulsion and Power
  15. Vega 1
  16. Vega 2
  17. Vega missions
  18. Vegetation Canopy Lidar
  19. Vehicle Control Design and Analysis
  20. vehicles) USE Launch Vehicles and Launch Operations
  21. Vendors
  22. Venera
  23. Venus
  24. vernier engines (spacecraft) USE Spacecraft Propulsion and Power
  25. very high frequency omnirange (VOR) navigation USE Aircraft Communications and Navigation
  26. very large scale integration (VLSI) USE Electronics and Electrical Engineering
  27. very long base interferometry (applications) USE Earth Resources and Remote Sensing
  28. Very Long Baseline Interferometry
  29. very long baseline interferometry (geophysics applications) USE Geophysics
  30. Vesta USE 4 Vesta
  31. vestibular effects (human) USE Aerospace Medicine
  32. VHSIC USE Electronics and Electrical Engineering
  33. vibration (aircraft) USE Aircraft Stability and Control
  34. vibration (spacecraft) USE Spacecraft Design, Testing and Performance
  35. vibration (structures) USE Structural Mechanics
  36. vibration testing USE Structural Mechanics
  37. Video Files
  38. Video Recordings USE Video Files
  39. Videos USE Video Files
  40. Videotape Recordings USE Video Files
  41. Vidicon Camera
  42. vidicon cameras USE Instrumentation and Photography
  43. Viewgraphs USE Slides
  44. Viewgraphs USE Presentations
  45. Viking
  46. Viking space probe USE Spacecraft Design, Testing and Performance
  47. viscoelasticity (structural materials) USE Structural Mechanics
  48. viscous flow USE Fluid Mechanics and Thermodynamics
  49. Visible Spectrometers
  50. visual acuity USE Aerospace Medicine
  51. Visual aids
  52. Visual Materials USE Visual aids
  53. Visual Resources USE Multimedia
  54. voice command for aircraft USE Aircraft Stability and Control
  55. voice communications USE Communications and Radar
  56. voice communications systems (aircraft) USE Aircraft Communications and Navigation
  57. voice communications systems (spacecraft) USE Space Communications, Spacecraft Communications, Command and Tracking
  58. volcanoes USE Geophysics
  59. vortices (general) USE Fluid Mechanics and Thermodynamics
  60. Voyager 1
  61. Voyager 2
  62. Voyager Mission, Ulysses Mission
  63. Voyager Missions
  64. VSTOL aerodynamics USE Aerodynamics
  65. VT Griffin
  66. VTOL aerodynamics USE Aerodynamics