| Union Pacific class P-2 | |
| Powertype: | Steam |
| Builder: | Baldwin Locomotive Works |
| Serialnumber: | 25687-25689, 25717 |
| Builddate: | 1905 |
| Totalproduction: | 4 |
| Whytetype: | 4-6-2 |
| Uicclass: | 2′C1′ |
| Driverdiameter: | 770NaN0 |
| Length: | 792NaN2 |
| Weightondrivers: | 1427401NaN1 |
| Locoweight: | 2411801NaN1 |
| Fueltype: | Oil |
| Fuelcap: | 2940usgal |
| Watercap: | 9000usgal |
| Boilerpressure: | 2002NaN2 |
| Cylindersize: | Originally: 17x and 28x, As rebuilt: 22x from 1923 |
| Valvegear: | Stephenson |
| Tractiveeffort: | 29920lbf |
| Factorofadhesion: | 4.77 |
| Operator: | Oregon Railroad & Navigation Co., Oregon-Washington Railroad & Navigation Co., Union Pacific Railroad |
| Operatorclass: | UP: P-2 |
| Fleetnumbers: | OR&N: 194–197 UP: 3200–3203 |
| Disposition: | One preserved, remainder scrapped |
The Union Pacific class P-2 was a class of 4-6-2 "Pacific" type steam locomotives that were built by the Baldwin Locomotive Works originally for the Oregon Railroad and Navigation Company (OR&N) in 1905.
In 1905, the Oregon Railroad and Navigation Company (OR&N) purchased four locomotives from the Baldwin Locomotive Works as there was a large amount of passenger traffic caused by the Portland Fair of 1905.[1]
See also: Oregon Railroad and Navigation 197. OR&N 197 was retired in 1958 and was donated to the City of Portland. Where it was placed on display near Oaks Amusement Park on land the city purchased for a future transportation museum, then named "Oaks Pioneer Park", where it was soon joined by two examples of the larger and more powerful 4-8-4 "Northern" type locomotives, Southern Pacific 4449 and Spokane, Portland and Seattle 700 as well as some other historic railroad and interurban equipment.[2]
It had sat almost forgotten by the public until late 1995, when a small group of individuals banded together to consider restoring the locomotive back to operational condition.
By 2008, the restoration was about half complete and was expected to be completed as volunteers and funds are available. It was being carried out by the non-profit all-volunteer group called the Friends of the OR&N 197.
As of 2024, OR&N 197 is still in the Oregon Rail Heritage Center (ORHC), being restored to operating condition by volunteers.