Re: Re: Tram and light rail gradients in Sydney.
  David Batho

Aah. Missed ‘adhesion only’!
David
Sent from my iPhone
On 9 Jul 2024, at 11:15 AM,billbolt...@... billbolton.email@...> wrote:

<IMG_0125.jpeg>On Tuesday 9 July 2024 at 10:11:54 UTC+10 Hunslet wrote:

Doubtless discussed previously, but what were the steepest adhesion-only grades on the former Sydney tramway system
 The steepest adhesion only grade was at Hayes St in Neutral Bay which was 1 in 10 down to the wharf jetty, and required trams with additional braking systems.
There were a number of 1 in 11 and 1 in 12 grades, notably on the Watson's Bay line and on the Young St loop at the Circular Quay end of the Elizabeth St routes.  All the steep grades were traversed at very low speeds. 
The Darling St Wharf grade was not adhesion only, as there was cable connected counterweight assistance.


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