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Re: Whistles and Horns NNG

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David Eads

January 20, 2009 01:57PM

Registered: 16 years ago
Posts: 6

IIRC the whistle could not be heard at speed (100 MPH) so an air horn was added to increase the safety margin. This has something to do with the doppler effect of a passing train. The coast line had marked locations when to use the whistle or the air horn.

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Subject	Author	Posted
Whistles and Horns NNG	Dale	January 19, 2009 05:09PM
Re: Whistles and Horns NNG	gbrewer	January 19, 2009 06:04PM
Re: Whistles and Horns NNG	Southern Pacific Narrow Gauge Tyler	January 19, 2009 06:10PM
Re: Whistles and Horns NNG	WilliamDiehl	January 19, 2009 08:07PM
Re: Whistles and Horns NNG	GLRR12	January 19, 2009 10:34PM
Re: Whistles and Horns NNG	Bill Dennehy	January 20, 2009 07:00AM
Re: Whistles and Horns NNG	David Eads	January 20, 2009 01:57PM
Re: Whistles and Horns NNG	Jim Spicer	January 20, 2009 10:16PM
Re: NNG - Whistle vs Horn, 1976 - (Ein DampfLoko Vergeltungswaffen) ...	Russo Loco	January 31, 2009 04:17PM

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488 stops for water at Los Pinos tank on closing day Oct. 1979. Photo courtesy Don Richter

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