Date: Thu, 13 Mar 2008 00:32:15 EDT
Reply-To: Cotsford@AOL.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Steve Cotsford <Cotsford@AOL.COM>
Subject: Re: Fuel Milage
Content-Type: text/plain; charset="US-ASCII"
Properly set up, they will all be about the same. It takes ex amount of
horsepower to move a given weight at a given speed. It will take roughly the
same amount of fuel if there are more locos used. The locos have to work
less hard for a given load if there are more of them so they burn less fuel
each. By adding another locomotive you are adding another 180 tons to the
train weight but you can go up steeper grades. The locos are coupled
electrically to share the load and depending just how well they are coupled the
efficiency can vary. Sometimes the locos are deadheading in a train. An
empty coal train going west from the Great Lakes to the Powder River Basin may
only have 1 loco doing the lions share. On the way back, loaded, it will
probably take all the locos working hard on the up grades.
CSX dont tell you that a loco just idling, going nowhere at all, might burn
200 gallons of diesel in a day. Thank fully the modern locos burn much
less.
In a message dated 3/13/2008 12:04:03 A.M. Eastern Daylight Time,
groundhogging@mac.com writes:
So if you have a multiple engined train- say with 300 cars, is the
individual fuel consumption of the engines higher or lower?
On Mar 12, 2008, at 11:50 PM, Steve Cotsford wrote:
That ad is misleading. Diesel locomotives burn lots of fuel. Its just
that they can pull lots of tons too.
The rolling resistance of a train can be as low as 10 lbs per ton, about
1/5th of a road going truck.
A loaded freight car weighs about 130 tons and a train can be 100 cars
long.
That adds up to 13000 tons. CSX says it can carry 1 ton 432 miles on
1
gallon of diesel fuel. If that train goes 432 miles, it uses 13000
gallons.
Steve
In a message dated 3/12/2008 11:14:41 P.M. Eastern Daylight Time,
_inua@CHARTER.NET_ (mailto:inua@CHARTER.NET) writes:
Duh! Am I dumb - I didn't get it.
CSX Railroad has an advertisement going right now touting 432 mile per
gallons. It the autmobile being carried 432 miles that makes the mileage.
John Rodgers
88 GL Driver
John Rodgers wrote:
Here's a question ............. what current multiwheel (greater than
two) vehuckes gets 432 miles to the gallon???
Yes - it's for real!
John Rodgers
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