| Re: controller Re: LIRR MP-54 #1149 and its ME-23 brake valve (485484) | |||
|
|
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
Re: controller Re: LIRR MP-54 #1149 and its ME-23 brake valve |
|
|
Posted by Frank Hicks on Mon Sep 3 23:05:58 2007, in response to Re: controller Re: LIRR MP-54 #1149 and its ME-23 brake valve, posted by SelkirkTMO on Mon Sep 3 22:59:42 2007. No, WH used a variety of letter designations to describe various MU control systems. Here's what I can think of off the top of my head:A=Automatic acceleration H=manual [Hand] acceleration L=Line voltage B=Battery voltage F=Field tapped M=Compatible with GE Type M control I would speculate that the most common types were HL and AB, but there were a lot of cars out there with ABF, HLF, etc control. CTA 4000 control was ABLFM (as opposed to LS/MFT, which was eliminated by recommendation of the Surgeon General), though how they got both an "L" and a "B" in there at the same time I have no idea. It's all Westinghorseshit to me; I'll take Type M any day. :-) Frank Hicks |