1 / 4

V-Pattern Angle Myth

V-Pattern Angle Myth. Devon Anderson & Will Dempster. The Myth. The faster a fire burns, the slower it will spread horizontally and the closer the angles will be vertically. On the other hand, the slower a fire burns the further the angle will tilt from vertical.

christopher-downs
Download Presentation

V-Pattern Angle Myth

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. V-Pattern Angle Myth Devon Anderson & Will Dempster

  2. The Myth • The faster a fire burns, the slower it will spread horizontally and the closer the angles will be vertically. • On the other hand, the slower a fire burns the further the angle will tilt from vertical. “A fire which is hot and fast at the point of origin will leave a sharp V-pattern. A slow fire will produce a shallow V.” –The Army’s Field Manual

  3. Why it’s a Myth • The nature of any wall covering and conditions of ventilation have important effects on the shape of the burn patterns. • The angle of the borders of the V-pattern do not indicate the speed of fire growth or rate of heat release of fuel alone.

  4. How it Affects Arson Investigation • Origin of V can help locate the point of ignition -Normally along a wall (short circuit) • Concerning width of V – all factors need to be taken into account (ventilation, type of wall, etc.)

More Related