Westinghouse patented his air brake and founded the Westinghouse Airbrake Co. in 1869. Air brakes became mandatory on US trains in 1893. Do not know how that fits in with the problems of Old 97.

Here are a few sites for homework tonight:

http://www.sdrm.org/faqs/brakes.html

http://www.railroadextra.com/chapt21.Html

http://www.uiowa.edu/~humiowa/rd10-15.htm

http://www.trainweb.org/railwaytechnical/air%20brakes.htm

Pop quiz possible.

Bob S.