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I asked this question which led to another question of mine, What it the long rod just past the top of the nose of the Bell 206B helicopter and what is it's purpose?

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marked as duplicate by Ron Beyer, mins, fooot, Ralph J, Federico Nov 4 '16 at 21:07

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  • $\begingroup$ If you mean the blade looking things that angle forward (top and bottom), they are wire cutters. The idea is that if a low flying heli encounters powerlines, those blades will cut the wires before they catch in the skids or rotor. $\endgroup$ – acpilot Nov 4 '16 at 19:47
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    $\begingroup$ The entire "wire cutting" system is not just the knife, there is an abrasive strip running between the two windshield halves that scores the cable first, then the knife cuts it. $\endgroup$ – Ron Beyer Nov 4 '16 at 19:52
  • $\begingroup$ woah! so cool! I never would have guessed $\endgroup$ – dalearn Nov 4 '16 at 20:24
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    $\begingroup$ @mins Your link is dead. :( $\endgroup$ – JAB Feb 24 '17 at 23:20
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If you are referring to the angled pieces above the front window, and below the nose; they are referred to as the WSPS (wire strike protection system). Designed to shear a line before it wraps around the landing skids or rotor.

Related post: Is special equipment required to perform high-voltage line inspections?

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