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How far to get up to speed?

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  • Member since
    January 2018
  • 30 posts
How far to get up to speed?
Posted by yellow_cad on Saturday, February 17, 2018 11:42 AM

How much actual distance does it take say a medium size train consist to get up to speed (say 40 mph)?  Knowing this I could convert to my scale which is N.

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Monday, February 19, 2018 9:30 AM

A lot depends on track: grade, curves, and any speed restrictions that need be observed. You're talking about several miles to get to 40 mph, perhaps longer. Many layouts don't have multiple miles of track to start with, but take it slow and it'll look realistic.

Mike Lehman

Urbana, IL

  • Member since
    October 2001
  • From: OH
  • 17,574 posts
Posted by BRAKIE on Monday, February 19, 2018 11:56 AM

I've seen NS trains leave Benson siding after a meet and by the 35th car rolled by it looked like they never been stop. Track speed through town is 35 mph.

Larry

Conductor.

Summerset Ry.


"Stay Alert, Don't get hurt  Safety First!"

  • Member since
    May 2004
  • 7,500 posts
Posted by 7j43k on Monday, February 19, 2018 1:04 PM

A VERY long time ago, I read a road test of a locomotive, done by Car and Driver, I think.  They had the 1/4 mile times and the "chart".  They also did a pogo stick, by the way (gasoline powered, perhaps?).  It's not impossible the magazines are buried in my garage.  Which is certainly more convenient than being buried under it, but not by much.

A little research turns up a GG1 and one car (thus: a train) doing a 1/4 mile in 22 seconds at 61 MPH.  And 65 seconds to 100 MPH.

 

Not your typical way freight, though.

 

Ed

  • Member since
    April 2015
  • 469 posts
Posted by Enzoamps on Tuesday, February 20, 2018 12:06 AM

I THINK the Car and Driver review was of the Gresley A3 Pacific.

http://www.trainweb.org/lunarlight/Gresley/Gresley.htm

It helps to be familiar with the C&D writing style for reviews.

  • Member since
    January 2004
  • From: Canada, eh?
  • 13,375 posts
Posted by doctorwayne on Tuesday, February 20, 2018 1:17 AM

Sounds similar to some of the stuff on Top Gear, although I do recall a Car & Driver "road test" of a nuclear submarine.

Wayne

  • Member since
    May 2004
  • 7,500 posts
Posted by 7j43k on Tuesday, February 20, 2018 11:27 AM

Enzoamps

I THINK the Car and Driver review was of the Gresley A3 Pacific.

http://www.trainweb.org/lunarlight/Gresley/Gresley.htm

It helps to be familiar with the C&D writing style for reviews.

 

THAT was a fun read.  While unintentional, I was amused by the comment that the engine had Walschaert valve gear for its middle cylinder.

I don't think that's the one I saw--I sorta think they used an American diesel.  And I'm pretty sure they had that cute little 1/4 mile graph in the lower left of the final page, just like they did for their cars.

For adequate but obscure reasons, I happen to have a model of this locomotive.  Perhaps someday it will be rescued from the obscurity of its cardboard box.  Inside another cardboard box.

 

Ed

  • Member since
    April 2001
  • From: Roanoke, VA
  • 2,019 posts
Posted by BigJim on Wednesday, February 21, 2018 9:18 AM

7j43k
I don't think that's the one I saw

There was one done using the Strasburg RR's 2-10-0 #90.

.

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