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Re: What exactly IS SMEE?

Posted by randyo on Wed Oct 13 16:29:07 2021, in response to Re: What exactly IS SMEE?, posted by William A. Padron on Wed Oct 13 10:08:21 2021.

SMEE stands for (S)traight air (M)otor (E)emergency (E)electric. I understand that there is also a little known subtype called STEE which is for a trailer car and is identical except for the lack of brake valves but very few transit systems actually have trailer cars these days. The last E in any brake system acronym is for the electric feature. The is an system called SME which has the straight air and emergency valve for a motor car and was used mostly on streetcars that were intended for multiple unit operation. The former NH Mack rail buses which were repurposed as Sperry rail detector cars have the SME system.

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