track centers

[NW Mailing List]

Thanks Grant I am very grateful for your knowledge and help, incidentally although my British stuff is 3mm the American layout I want to do is actually the original American TT scale at 1:120 at 2.54 mm to the foot so do you know the formula for that one

Thanks and regards
Richard



From: NW Mailing List 
Sent: Sunday, August 17, 2014 10:08 PM
To: NW Mailing List 
Subject: Re: track centers



Sent from my iPhone

On Aug 17, 2014, at 5:06 PM, "NW Mailing List" <nw-mailing-list at nwhs.org> wrote:


  Main track centers on tangent (TCt) were 13' apart, later 14' (post-war) and wider in curves. For track centers on curves (TCc) in British TT (3mm) scale, try TCc = TCt + (5000 / R), where R is the inside track radius (all terms in millimeters). 


  Grant Carpenter
  ---
  On 8/16/2014 9:32 AM, NW Mailing List wrote:

    Bit more help please chaps if anybody can oblige. What is the minimum distance between tack centers on mainline double track

    Thanks and regards
    Richard

    From: NW Mailing List 
    Sent: Thursday, July 31, 2014 6:57 PM
    To: nw-mailing-list at nwhs.org 
    Subject: Re: Tie spacing

    The standard tie spacing on centers was 19-1/2" for main, heavy branch, switching, and engine running tracks; 21-1/2" for light branch, switching, and engine running tracks, and heavy passing sidings and yard tracks; 23-3/4" for light passing sidings and yard tracks, and heavy industrial, shop, and storage tracks; 26-3/4" for light industrial, shop, and storage tracks; and 30-1/2" for station sidings, unimportant spurs, etc. (L-168, 1946)

    Standard ties measured 9"W x 7"H x 8-1/2'L (L apparently minimum, not nominal).

    Switch ties measured 9"W x 7"H and were cut in 6" intervals from 9' to 16'L . Headblock ties varied from about 11-1/2' to 14-1/2'L, depending on the machine.

    Bridge ties measured 10" x 10" x 10'L (or longer where needed) on 15" centers. (L-50, 1943)


    Grant Carpenter
    ---
    On 7/27/2014 1:57 PM, NW Mailing List wrote:


      Hi folks
      Can somebody tell me the standard tie spacing on N&W  130lb rail please together with actual size of N&W rail ties. I am trying to do a small TT scale project with handlaid track and need sizes to get it right. I have ordered some drawings from the archives but I am too impatient to wait for them to arrive in the UK

      Thanks and regards
      Richard




  ________________________________________
  NW-Mailing-List at nwhs.org
  To change your subscription go to
  http://list.nwhs.org/mailman/options/nw-mailing-list
  Browse the NW-Mailing-List archives at
  http://list.nwhs.org/pipermail/nw-mailing-list/


--------------------------------------------------------------------------------
________________________________________
NW-Mailing-List at nwhs.org
To change your subscription go to
http://list.nwhs.org/mailman/options/nw-mailing-list
Browse the NW-Mailing-List archives at
http://list.nwhs.org/pipermail/nw-mailing-list/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://six.pairlist.net/pipermail/nw-mailing-list/attachments/20140818/03fd88fb/attachment.html>