WTT weighbridge test truck

WTT 27 photo courtesy of Peter J. Vincent.

Number in Class 33
Number group 1 - 33
Construction period see captions
In service
Where built Newport
Diagram
Modeling
Weighbridge test trucks were periodically used to test the accuracy of rail weighbridges. With later WTT's An empty WTT was weighed on the "Master Scales" at Newport and then precise amounts of weight was added as required, earlier designs could not have weight added so they were simply weighed and then stencilled with the total weight..

Although there were 30 WTT numbers there was never 30 in service at the same time. Later numbers were conversions from earlier WTT's presumably when their underframes had expired. Some parts of WTT's were from fixed wheel steam loco tenders.


This is the second WTT 2, converted in 1922 from steam loco 103's tender it was scrapped in 1957. Photo at Geelong in 1938, note the added on handbrake and what appear to be wooden brake blocks. The tender was built at Williamstown in 1873


WTT 15 was converted from IA 7319 (Tommy Bent) in 1956, photos at Williamstown, 1978



WTT 16 at Tottenham yard, March 27 1977
Photo courtesy Rob O'Regan



WTT 17 at Hamilton, Oct. 29 1977
Photo courtesy Geoff Winkler



WTT 18 at Warragul, Oct. 9 1976
Photo courtesy Rob O'Regan



WTT 19 at Port Melbourne, Oct. 19 1976
Photo courtesy Rob O'Regan


WTT 21 was converted from IA 7448 in 1956



WTT 22 at Dimboola, Feb. 3 1977
Photo courtesy Rob O'Regan



WTT 23 at Korumburra, Jan. 30 1977
Photo courtesy Rob O'Regan



WTT 24 was converted by putting WTT 7's body ( parts of steam loco R 13's tender) onto the underframe of IA 7454 in 1956. WTT 7 dated from 1922.



WTT 25 at Maryborough, April 17 1979
Photo courtesy Geoff Winkler



WTT 26 at Nth Geelong yard, July 24 1978
Photo courtesy Geoff Winkler



WTT 27


WTT 30 was converted from IA 12606 in 1959


WTT 31 was converted from IA 12949 in 1959
BELOW: Top view of WTT 31 showing the weights in place.

page last updated Sun, 16 Oct 2011