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Unit 1 - Basic Concepts of Wildland Fire

Unit 1 - Basic Concepts of Wildland Fire. Unit Objective. Define basic terminology used in wildland fire. Parts of a Fire. Origin. Head . Flank (Flanks) . Rear or Heel. Perimeter. Finger. Pocket. Island. Spot Fire. Head. Left Flank. Right Flank. Rear or Heel. Origin.

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Unit 1 - Basic Concepts of Wildland Fire

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  1. Unit 1 - Basic Concepts of Wildland Fire

  2. Unit Objective Define basic terminology used in wildland fire.

  3. Parts of a Fire

  4. Origin

  5. Head

  6. Flank (Flanks)

  7. Rear or Heel

  8. Perimeter

  9. Finger

  10. Pocket

  11. Island

  12. Spot Fire

  13. Head • Left Flank • Right Flank Rear or Heel • Origin Which flank is more active? Where would you start to fight this fire?

  14. What are these two fire parts called?

  15. Fire Behavior Terms

  16. Smoldering Fire burning without flame and barely spreading.

  17. Creeping Fire burning with a low flame and spreading slowly.

  18. Running Fire spread rapidly with a well defined head. *Click on image to play video

  19. Spotting Fire producing sparks or embers that are carried by the wind or convection that start new fires beyond the main fire *Click on image to play video

  20. Torching

  21. Crowning Fire advances from top-to-top of trees or shrubs more or less independently of the surface fire. *Click on image to play video

  22. Flare up Sudden acceleration of fire spread or intensity, but of relatively short duration.

  23. Firewhirl A spinning, moving column of ascending air rising within a vortex and carrying aloft smoke, debris, and flames. *Click on image to play video

  24. What type of fire behavior is this? *Click on image to play video

  25. What type of fire behavior is this? *Click on image to play video

  26. Other useful firefighting terms • Anchor point • Control line • Fireline • Mop-up • Contained • Controlled • L.C.E.S.

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