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#Steam_locomotives and my comments at Talk:Tractive_force#Steam_locomotives. Biscuittin (talk) 10:53, 24 April 2012 (UTC)