Go to: Message List•New Topic•Search
Re: tractive effort discussion on T.O.
Author: Robby Peartree
Date: 05-16-2010 - 22:05

Tom,

Do you have any info on the % of boiler pressure factor I have seen it referred to a couple of things in modern writings but it seems to me that it refers to the pressure gradient you find in a locomotive to the cylinders and energy losses due to back pressure? The only time I saw GCR4960 steam chest pressure match its boiler pressure we were stationary. When going around MP 48 at 8 mph we got 180 psi of steam chest at 12 psi of back pressure. While I realize 4960 will not put out the same numbers with its new nozzles but I have not seen it operate with the new exhaust.

Robby Peartree

Navigate: Previous Message•Next Message
Options: Reply To This Message•Quote This Message


Subject Written By Date/Time (PST)
  tractive effort discussion on T.O. Tom Moungovan 05-16-2010 - 19:00
  Re: tractive effort discussion on T.O. Robby Peartree 05-16-2010 - 22:05
  Re: tractive effort discussion on T.O. Tom Moungovan 05-17-2010 - 07:28


Go to: Message List•Search
Subject: 
Your Name: 
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically.
  *******         **  ********  **    **   *******  
 **     **        **  **         **  **   **     ** 
        **        **  **          ****    **     ** 
  *******         **  ******       **      ******** 
        **  **    **  **           **            ** 
 **     **  **    **  **           **     **     ** 
  *******    ******   ********     **      *******
This message board is maintained by:Altamont Press
You can send us an email at altamontpress1@gmail.com