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> Al,<BR>> I seem to have confused you. I am comparing a proven technology that was<BR>> available in 1898 (but not made universal) to the new braking system now<BR>> being used by Norfolk Southern on train 722.<BR>> <BR>> Mike<BR><BR><BR>It was not proven by any stretch of the imagination (todays ECP brakes can't even be called proven technology))... just possible. As for availability it would be interesting to see if any of the manufacturers actually catalogged such a system back in the day.<BR><BR>Robb Fisher
<BR>RFDI<BR><BR> </body>
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