| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| W-924 | W | 4-8-2 | 3'-6" | WAGR | Old Ghan Heritage Railway, Alice Springs, NT | operational | Beyer, Peacock & Co. (Manchester) #7401, 1951 | Named Lou Marks. |
| S-549 | S | 4-8-2 | 3'-6" | WAGR | Rail Heritage WA, Bassendean, WAU | operational | WAGR (Midland Workshops) #93, 1947 | Named Greenmount. |
| G-233 | G | 2-6-0 | 3'-6" | WAGR | South West Rail & Heritage Centre, Boyanup, WAU | operational | Martin, James & Co. (Gawler) #174, 1898 | Named Leschanault Lady. Owned by Rail Heritage, WA. |
| 0-6-0T | 3'-6" | PublicWorks Dept. (Kiama Municipal Council) | Don River Railway, Devonport, TAS | operational | John Fowler #5265, 1887 | |||
| M-4 | M | 4-6-2 | 3'-6" | TGR | Don River Railway, Devonport, TAS | operational | Robert Stephenson & Hawthorn #7424, 1951 | |
| MA-2 | MA | 4-6-2 | 3'-6" | TGR | Don River Railway, Devonport, TAS | operational | Robert Stephenson & Hawthorn #7421, 1951 | |
| 8 | 4-8-0 | 3'-6" | Emu Bay Railway | Don River Railway, Devonport, TAS | operational | Dübs & Co. (Scotland) #3856, 1900 | Named Heemskirk. | |
| 1037 | BB18 | 4-6-2 | 3'-6" | QR | DownsSteam Tourist Railway, Drayton, QLD | operational | Vulcan Foundry #5963, 1951 | From Mackay. Restored to operation and mainline tested on 24-June-2024. |
| 106 | C16 | 4-8-0 | 3'-6" | QR | DownsSteam Tourist Railway, Drayton, QLD | operational | Toowoomba #28, 1914 | From Redbank then Towoomba then Pittsworth. Restored to operation and mainline tested. |
| M-5 | M | 4-6-2 | 3'-6" | TGR | Tasmanian Transport Museum, Glenorchy, TAS | operational | Robert Stephenson & Hawthorn #7425, 1952 | |
| 922 | C17 | 4-8-0 | 3'-6" | QR | Gillams Sawmill, Grandchester, QLD | operational boiler | Walkers #485, 1946 | Named Old Faithful, supplies power to sawmill. |
| 802 | C17 | 4-8-0 | 3'-6" | QR | Mary Valley Heritage Railway, Gympie, QLD | operational | Armstrong-Whitworth & Co. #850, 1927 | From Roma. |
| 45 | C17 | 4-8-0 | 3'-6" | QR | Mary Valley Heritage Railway, Gympie, QLD | operational | Evans, Anderson, Phelan #168, 1923 | |
| 6 | A10 | 0-4-2 | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | stored operational | Neilson Reid & Co. #1170, 1865 | |
| 221A | AC16 | 2-8-2 | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | operational | Baldwin #69456, 1943 | Named MacArthur. |
| 1089 | BB18 ¼ | 4-6-2 | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | operational | Walkers #557, 1958 | |
| 1051 | DD17 | 4-6-4T | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | operational | QR (Ipswich) #210, 1951 | Named Blue Baby. |
| 967 | C17 | 4-8-0 | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | stored operational | Walkers #504, 1950 | From Ghan Preservation Society, Alice Springs, later Beaudesert Rail. |
| 974 | C17 | 4-8-0 | 3'-6" | QR | Workshops Rail Museum, Ipswich, QLD | operational | Walkers #511, 1951 | Named Brown Bomber. |
| 218A | AC16 | 2-8-2 | 3'-6" | QR | Zig Zag Railway, Lithgow, NSW | operational | Baldwin #69453, 1943 | Named MacArthur. |
| 1072 | BB18 ¼ | 4-6-2 | 3'-6" | BB | Zig Zag Railway, Lithgow, NSW | operational | Walkers #540, 1956 | Named City of Lithgow. |
| 1049 | DD17 | 4-6-4T | 3'-6" | QR | Zig Zag Railway, Lithgow, NSW | operational | QR (Ipswich) #208, 1951 | |
| 934 | C17 | 4-8-0 | 3'-6" | QR | Zig Zag Railway, Lithgow, NSW | operational | Clyde Engineering (Granville) #501, 1949 | |
| 0-4-0VB | 3'-6" | Queens Park, Maryborough, QLD | operational | William Olds and Sons, 1999 | Named Mary Ann, replica. | |||
| 3 | 0-4-0ST | 3'-6" | Mount Morgan Co | Golden Mount Rail Preservation Society, Mount Morgan, QLD | operational | Hunslet Engine Co. #854, 1903 | ||
| PMR-720 | PMR | 4-6-2 | 3'-6" | WAGR | Steamtown Heritage Rail Centre, Peterborough, SA | stored operational | North British Locomotive Co. #26564, 1949 | Named Keith Smith. |
| W-901 | W | 4-8-2 | 3'-6" | WAGR | Steamtown Heritage Rail Centre, Peterborough, SA | stored operational | Beyer, Peacock & Co. (Manchester) #7378, 1951 | |
| W-908 | W | 4-8-2 | 3'-6" | WAGR | Hotham Valley Tourist Railway, Pinjarra, WAU | operational | Beyer, Peacock & Co. (Manchester) #7385, 1951 | Named Dwellingup. Heavy, spare locomotive. |
| W-945 | W | 4-8-2 | 3'-6" | WAGR | Hotham Valley Tourist Railway, Pinjarra, WAU | operational | Beyer, Peacock & Co. (Manchester) #7457, 1951 | Named Banksiadale. |
| 0-6-0T | 3'-6" | Broken Hill Assoc. Smelters | National Railway Museum, Port Adelaide, SA | operational | Andrew Barclay Sons & Co. #1545, 1919 | Named Peronne. | ||
| 0-4-2T | 3'-6" | Pioneer Sugar (NSW Public Works) | Bellarine Peninsula Railway, Queenscliff, VIC | operational | Perry Engineering, Mile End #271, 1927 | Named Klondyke. Built as an 0-4-0T 3 foot. | ||
| 0-6-0T | 3'-6" | Broken Hill Assoc. Smelters | Bellarine Peninsula Railway, Queenscliff, VIC | operational | Andrew Barclay Sons & Co. #1543, 1918 | Named Pozieres, From Puffing Billy Railway Museum. | ||
| T-251 | T | 2-8-0 | 3'-6" | SAR | Bellarine Peninsula Railway, Queenscliff, VIC | operational | Walkers #276, 1917 | |
| 1 | 0-4-2cog | 3'-6" | Mt Lyell Mining (ABT) | West Coast Wilderness Railway, Queenstown, TAS | operational | Dübs & Co. (Scotland) #3369, 1896 | From Zeehan. | |
| 3 | 0-4-2cog | 3'-6" | Mt Lyell Mining (ABT) | West Coast Wilderness Railway, Queenstown, TAS | operational | Dübs & Co. (Scotland) #3730, 1899 | ||
| 5 | 0-4-2cog | 3'-6" | Mt Lyell Mining (ABT) | West Coast Wilderness Railway, Queenstown, TAS | operational | North British Locomotive Co. #24418, 1938 | From Menzies, VIC. | |
| 30 | 0-6-0ST | 3'-6" | Pichi Richi Railway, Quorn, SA | operational | Vulcan Iron Works (Wilkes-Barre) #2533, 1916 | Operational; diesel conversion. | ||
| 25 | NM | 4-6-0 | 3'-6" | CR | Pichi Richi Railway, Quorn, SA | operational | Thompsons Engineering (Castlemaine) #51, 1925 | |
| W-22(W-916) | W | 4-8-2 | 3'-6" | STC | Pichi Richi Railway, Quorn, SA | operational | Beyer, Peacock & Co. (Manchester) #7418, 1951 | Named Justin Hancock, maxquerading as W-22 with full cowling and Silverton Tramway livery. |
| W-934 | W | 4-8-2 | 3'-6" | WAGR | Pichi Richi Railway, Quorn, SA | operational | Beyer, Peacock & Co. (Manchester) #7411, 1951 | |
| SMC1 | NJAB | Railcar | 3'-6" | SAR | Pichi Richi Railway, Quorn, SA | operational | Kitson & Co. #4356, 1906 | Named Coffee Pot. This is a 2-2-0WT with a passenger coach on a single rigid frame. |
| 268 | D17 | 4-6-4T | 3'-6" | QR | Ravenshoe Railway Company, Ravenshoe, QLD | operational | QR (Ipswich) #112, 1925 | From Capella, named Capella. |
| 0-4-0Tram | 3'-6" | Archer Park Station & Steam Tram Museum, Rockhampton, QLD | operational | Purrey, 1909 | ||||
| 0-4-2T | 3'-6" | Pioneer Sugar | Queensland Pioneer Steam Railway, Swanbank, QLD | operational | Perry Engineering, Mile End #265, 1925 | Named Kilrie. | ||
| 448 | PB15 | 4-6-0 | 3'-6" | QR | Queensland Pioneer Steam Railway, Swanbank, QLD | operational | Walkers #91, 1908 |
