... on 18 Feb 2019 04:04 by Andrew Duncan posted: 18 Feb 2019 04:44 from: Matt M. Hi John, I shouldn't post late at night while trying to do calculations in my head. The ferrule was over 1 inch but the movement I thought would be less that an inch travel. Having gone through some drawings to confirm, the set could be anywhere between 7/40 and 1/4. So the pivot at the join is not that great a distance. I'll attach some drawings. 2282_172246_560000000.jpg 2282_172248_570000000.jpg 2282_172252_460000000.jpg 2282_172250_430000000.jpg 2282_172251_480000000.jpg The NSWGR didn't go through the the halfway house of bringing the heel block forward to integrate with the fishplate where it was bolted to the lead. Victoria Railways and South Australia appear to have had some various versions of that type. NSWGR went from separate heel chocks to the American Railway Engineering Association integrated version somewhere around 1928. I agree with your summation of the layout of the North British switch. You'll see the similarities in the attached drawings. Due to costs post war, following the the Depression ...