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Re: Tractive effort, horsepower, and tractive power

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rehunn

July 09, 2016 11:11AM

Registered: 16 years ago
Posts: 4,894

It's interesting and "safely" applies to a DC motored diesel but the difference in an AC motored diesel between starting and continuous is not so pronounced due
to the much better heat dissipation and overall efficiency of the AC motored not to mention the heat caused by the brush interface in the DC motor. Also an AC unit
will start close to 50% of weight on drivers thanks to much better wheelslip software. As to steam, the 25% number is a good average, your results may vary due to
wet rail, running out of sand, and @#$%& hoghead!

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Subject	Author	Posted
Tractive effort, horsepower, and tractive power	dougvv	July 09, 2016 01:05AM
Re: Tractive effort, horsepower, and tractive power	bcp	July 09, 2016 02:05AM
Re: Tractive effort, horsepower, and tractive power	rehunn	July 09, 2016 11:11AM
Re: Tractive effort, horsepower, and tractive power	John Hewlett	July 09, 2016 08:23PM
Re: Tractive effort, horsepower, and tractive power	Bruce R. Pier	July 09, 2016 08:52PM
Re: Tractive effort, horsepower, and tractive power	dougvv	July 09, 2016 10:44PM
Re: Tractive effort, horsepower, and tractive power	hoghead1	July 11, 2016 09:04AM
Re: Tractive effort, horsepower, and tractive power	Russo Loco	July 14, 2016 12:48PM
Re: Tractive effort, horsepower, and tractive power	et&wnc	July 14, 2016 02:14PM
Re: Tractive effort, horsepower, and tractive power	dougvv	July 14, 2016 03:01PM
rolling resistance - Re: Tractive effort, horsepower, and tractive power	dougvv	July 14, 2016 03:44PM
Re: Tractive effort, horsepower, and tractive power	bcp	July 09, 2016 11:10PM
Re: Tractive effort, horsepower, and tractive power	GeorgeGaskill	July 10, 2016 03:49AM
Re: Tractive effort, horsepower, and tractive power	Earl	July 10, 2016 08:19AM
Re: Tractive effort, horsepower, and tractive power	Scott Gibbs	July 11, 2016 05:03PM
Re: Tractive effort, horsepower, and tractive power	Gunns	July 17, 2016 01:07PM

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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.