Don't Ask Rambi Message Board

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Pastimes : Don't Ask Rambi

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next

To: Jacques Chitte who wrote (51746)	6/3/2000 10:43:00 PM
From: JF Quinnelly	Read Replies (1) of 71178

"Tractive effort was a theoretical quantity. Railroads preferred it to HP ratings because HP involved a time quantity which was determined, in part, by how well the locomotive was being fired (among many other variables). Tractive effort, on the other hand, was determined strictly by the geometry of the locomotive. Tractive effort can be determined by the following equation: TE = [c P (d)^2 s]/D TE = tractive effort in lbs c = a constant determined by the mean effective pressure and friction (usually 85%) P = boiler pressure d = piston diameter s = piston stroke D = driver diameter Using the above equation with specifications for a Big Boy yields: Boiler pressure: 300 lbs Cylinders: 2x 23.75x32 inches Drivers: 68 inch TE = [.85 300 2(23.75)^2 32]/68 = 135,375 lbs" steamlocomotive.com Woof.

Report TOU Violation

Share This Post

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next