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Re: Spirals and track precision on narrow gauge lines

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Jim Grigsby

March 30, 2008 08:38AM

Registered: 16 years ago
Posts: 1,206

Dave
The profile sheets also show a straight line representation of the alignment. According to these, and the plan sheets I have seen, the S.V. did use simple (circular) curves for most of it's line. Interestingly though, about a third of the way from Austin to Prairie City they suddenly began to spiral everything. The grades and alignment on this extension were as bad as anything on the line and speeds would necessarily have been very slow. Why they would suddenly feel the need for spiral curves is a bit of a mystery.
Jim

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Subject	Author	Posted
Spirals and track precision on narrow gauge lines	DaveM	March 29, 2008 08:34AM
Re: Spirals and track precision on narrow gauge lines	dougvv	March 29, 2008 02:53PM
Re: Spirals and track precision on narrow gauge lines	Brian Norden	March 29, 2008 07:06PM
Re: Spirals and track precision on narrow gauge lines	Jim Grigsby	March 30, 2008 08:38AM
Re: Spirals and track precision on narrow gauge lines	bcp	March 30, 2008 03:34PM
Re: Spirals and track precision on narrow gauge lines	dougvv	March 30, 2008 05:48PM
Re: Spirals and track precision on narrow gauge lines	Jeff A.	March 31, 2008 07:39PM
Re: Spirals and track precision on narrow gauge lines	dougvv	March 31, 2008 08:08PM
Re: Spirals and track precision on narrow gauge lines	Jim Grigsby	April 02, 2008 11:25AM
Re: Spirals and track precision on narrow gauge lines	GeorgeGaskill	April 02, 2008 12:41PM
Re: Spirals and track precision on narrow gauge lines	dougvv	April 02, 2008 03:58PM
Re: Spirals and track precision on narrow gauge lines	Brian Norden	April 02, 2008 08:08PM
Re: Spirals and track precision on narrow gauge lines	dougvv	April 02, 2008 08:24PM
Re: Spirals and track precision on narrow gauge lines	GeorgeGaskill	April 03, 2008 11:22AM
Re: Spirals and track precision on narrow gauge lines	dan	April 04, 2008 08:22AM
HP & RPN	Festus	April 04, 2008 08:43AM
Re: HP & RPN	Don Richter	April 04, 2008 09:34AM
Re: HP & RPN	geode	April 04, 2008 09:41AM
Re: Spirals and track precision on narrow gauge lines	dougvv	April 04, 2008 03:20PM
Online slide rule	bcp	April 04, 2008 03:42PM
Re: Spirals and track precision on narrow gauge lines	WPYmike	April 02, 2008 08:49PM
Re: Spirals and track precision on narrow gauge lines	DaveM	April 03, 2008 07:59AM
Re: Spirals and track precision on narrow gauge lines	Max Cox	April 04, 2008 08:53AM
.9 cents worth	Festus	April 04, 2008 10:29AM
Re: .9 cents worth	dougvv	April 04, 2008 03:22PM
Re: .9 cents worth	geode	April 04, 2008 07:36PM
Re: .9 cents worth	doodlebug	April 06, 2008 06:45AM
Re: Spirals and track precision on narrow gauge lines	DaveM	April 04, 2008 02:40PM
Re: Spirals and track precision on narrow gauge lines	dan	April 05, 2008 07:49AM
Re: Spirals and track precision on narrow gauge lines	DaveM	April 06, 2008 08:08AM
Re: Spirals and track precision on narrow gauge lines	dan	April 06, 2008 08:47AM
Re: Spirals and track precision on narrow gauge lines	DaveM	April 06, 2008 09:02AM
Re: Spirals and track precision on narrow gauge lines	dan	April 06, 2008 10:58AM

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

The NGDF was started by Don Richter and is currently operated in his memory by Nathan Holmes and others. Others who have contributed to the upkeep of this board are (in no particular order): Charles McCandless, Everett Lueck, Ted Wilton, Cole Adams, James Bane, John Moellmer, Jon Bentz, Linn Moedinger, lloyd lehrer, Rod Jensen, John Craft, Steven Forney, Herb Kelsey, Bill Ramaley, Russ Sperry (El Russo Loco), Josh McNeal, John West, Jim Armstrong, Bob Bergstrom, Greg Scholl, Blake Forbes Doug van Veelen and Mark Fuller.