Talk:SECR Q1 class

Tractive effort calculation at 85% boiler pressure: (18x18x26x150x0.85)/66 = 16,274 lbf This is an original calculation but it is not original research. Biscuittin (talk) 21:52, 23 April 2012 (UTC)
 * See Tractive_force and my comments at Talk:Tractive_force. Biscuittin (talk) 10:53, 24 April 2012 (UTC)