JGR Class 3380

{{short description|Class of 4 Japanese compound 2-6-2T locomotives}}

{{One source|date=December 2024}}

{{Expand Japanese|date=December 2024}}

{{Infobox Locomotive

| name= JGR Class 3380

| image = JGR-3380SL.jpg

| caption= Class 3380 locomotive in service on the San'yō Railway as no. 126, prior to nationalization

| powertype= Steam

| gauge= {{RailGauge|1067mm|lk=on}}

| driverdiameter = {{Convert|1,270|mm|ftin|abbr=on}}

| whytetype= {{whyte|2-6-2|T}}

|valvegear=Stephenson

| designer=

| retiredate= 1925

| disposition= All scrapped

| length= {{Convert|10.846|m|ftin|abbr=on}}

| locoweight= 39.35 t

| locotenderweight=

| fueltype =

| fuelcap = 1.94 t

| watercap = {{convert|6.71|m3|USgal|0|abbr=on}}

| builder= Sanyō Railway

| builddate= 1906

| totalproduction = 4

| maxspeed =

| boilerpressure = {{convert|12.7|kg/cm2|lb/in2|abbr=on}}

| firearea = {{convert|1.58|m2|sqft|0|abbr=on}}

| tubearea =

| fluearea =

| tubesandflues =

| fireboxarea =

| totalsurface = {{convert|91.1|m2|sqft|0|abbr=on}}

| cylindercount = four (Vauclain compound)

| hpcylindersize = {{convert|29.2|x|55.9|cm|in|0|abbr=on}}

| lpcylindersize = {{convert|48.3|x|55.9|cm|in|0|abbr=on}}

| tractiveeffort= 8,100kg (single), 5,930kg (double)

}}

The JGR Class 3380 consisted of four Vauclain compound {{whyte|2-6-2|T}} wheel arrangement steam locomotives of the Japanese Government Railways. They were built by the San'yō Railway as numbers 125-128 and inherited by the JGR under nationalization in 1907. They continued to serve on the San'yō Main Line until 1919, when they were sent to Hokkaido. All four were scrapped in 1925.