Y1-class Melbourne tram

{{Use dmy dates|date=November 2019}}

{{Infobox tram

| name = Y1-class

| image = Melbourne Y1 Class Tram 611 Sydney Tramway Museum December 2023 2.jpg

| imagesize = 250

| caption = Y1 611 preserved in operating condition at the Sydney Tramway Museum

| manufacturer = Melbourne & Metropolitan Tramways Board

| assembly =

| constructed = 1930

| numberbuilt = 4

| numberservice =

| fleetnumbers = 610-613

| depots =

| designer =

| predecessor =

| successor =

| carlength = {{cvt|13.72|m|ftin}}

| width = {{cvt|2.64|m}}

| height = {{cvt|3.11|m|ftin}}

| wheeldiameter = {{cvt|838|mm}} (as built)
{{cvt|711|mm}} (as modified)

| wheelbase = {{cvt|1.6|m}}

| weight = {{cvt|20.1|t|lb}}

| capacity = 53

| acceleration =

| deceleration =

| doors =

| lowfloor =

| traction motors =

| axleload =

| powersupply =

| collectionmethod = Trolley pole

| electricsystem =

| wheels driven =

| steep gradient =

| bogies =

| minimum curve =

| gauge = {{RailGauge|1435mm}}

}}

File:Interior of Tram 611 at Sydney Tramway Museum.jpg

The Y1-class was a class of four trams built by the Melbourne & Metropolitan Tramways Board built as a modified version of the Y-class to trial one man operation. Initially used on East and West Preston routes from Collins Street, from 1934 they were transferred to the Toorak line. From 1936 they were used on Burwood services from Camberwell depot. In 1933, 613 was used on Victorian Railways' Sandringham railway station to Black Rock line."60 Years of the M&MTB" Trolley Wire issue 186 February 1980 page 15{{cite book|last1=Cross|first1=Norman|last2=Budd|first2=Dale|last3=Wilson|first3=Randall|title=Destination City Melbourne's Electric Trams|date=1993|publisher=Transit Publishing Australia|location=Sydney|isbn=0 909459 18 5|pages=31, 116|edition=5}}[https://vicsig.net/trams/class/Y1 Y1 Class] Vicsig

In 1965, the class was transferred to Glenhuntly depot to avoid running into the city due to a lack of number boxes."Hawthorn Depot Closed" Trolley Wire issue 97 April 1965 page 11 Withdrawn in 1965, they were retained as driver training cars at Hawthorn depot with 613 having just been overhauled at Preston Workshops."Melbourne Tram Notes" Trolley Wire issue 98 June 1965 page 13 In late 1990, 611 was briefly used in regular service out of Kew depot.