Southbound (Up) trains up to 1,100 tons trains from Gosford were hauled by a single 46 (except when positioning a 46). At Hawkesbury River, if the load exceeded 550 tons, a second 46 was added to the front. The second 46 was detached at Cowan (my layout Sydney Staging) and light engined back to Hawkesbury River where it waited for it's next banking assignment. For down trains (Hornsby to Gosford), the maximum load for single 46, is 600 tons. The maximum load for both up and down passenger trains is 375 tons.
This above "banking" made for lots of operation.
The “front” track of the Armidale Staging (5 Loops), will be a continuation of the Main North to Armidale 550 mm above Hawkesbury River Bridge, with a Return Loop (added at a later stage), providing the turning of the trains stored in Armidale Staging, ready for their next journey, south and obviously continuous running if necessary. The previous Return Loop at Tamworth will be removed.
The Hawkesbury River Hotel is paramount to the scene. Thankfully Bob Stack was able to "re-secure" his Pub and now it's the centrepiece of the scene. I have been very lucky to have been able to have "instant" town scenes with all the buildings from Bob and Keith.