Re: Aussie TB's

----- Original Message -----

From: IS Edit

To: [email protected]

Sent: Sunday, February 24, 2002 1:48 PM

Subject: Re: [TramsDownUnder] Aussie TB's

They look vaguely eastern European, Mal.

 

A lot of early trolley buses had rough riding suspension including the St Louis and Marmon Herringtons I drove in San Francisco. It wasn't until the adoption of air-suspension that the problem disappeared.

 

I well remember the suspensions on the Melbourne & Metropolitan Tramways Board's AEC Regal Mk III half-cab diesels. They had thin "plates" to give more progressive damping than a few thick plates would have done. The original two man versions had 25 plates of leaves on the rear, and the bob-tail versions had 22 plate springs. I had to change half a dozen sets. Not fun. As the spring packs got older and settled the ride got rougher and rougher. The passengers and many of the M&MTB people called them "bone shakers".

 

Bob Murphy

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