Wabash class P1

{{Infobox locomotive

| name = Wabash class P-1 Hudson (Rebuilt : K4 and K5 Mikado’s)

| powertype = Steam

| builder = American Locomotive Company

| image = Wabash 700.jpg

| caption = Wabash #700 at Cerro Gordo, Illinois, June 19, 1946

| serialnumber =

| builddate = 1925 (As Class K4 and K5 2-8-2 Mikados)

| totalproduction = 7

| rebuilder = Wabash Railroad Decatur Illinois Shops

| rebuilddate = 1943–1947 (Rebuilt : To Class P1)

| numberrebuilt = 7

| whytetype = 4-6-4(formerly 2-8-2)

| uicclass = 2′C2′ h2

| gauge = {{Track gauge|ussg|allk=on}}

| leadingdiameter = {{convert|36|in|mm|0|abbr=on}}

| driverdiameter = {{convert|80|in|mm|0|abbr=on}}

| trailingdiameter = {{convert|42|in|mm|0|abbr=on}}

| length = {{convert|87|ft|5|in|m|2|abbr=on}}

| width = {{convert|10|ft|8|in|m|2|abbr=on}}Westcott, Linn H. [ed.] (1960).

| height = {{convert|16|ft|0|in|m|2|abbr=on}}

| axleload = {{convert|72009|lb|kg t|abbr=on}}

| locoweight = {{convert|374690|lb|kg t|abbr=on}}

| locotenderweight = {{convert|582680|lb|kg t|abbr=on}}

| fueltype = Coal

| fuelcap = {{convert|32000|lb|kg t|abbr=on}}

| watercap = {{convert|12000|usgal|abbr=on}}

| boilerpressure = {{convert|220|lbf/in2|MPa|2|abbr=on}}

| firearea = {{convert|71|sqft|m2|abbr=on}}

| totalsurface = {{convert|4225|sqft|m2|abbr=on}}

| superheaterarea = {{convert|1051|sqft|m2|abbr=on}}

| cylindercount = Two

| cylindersize = {{convert|26|x|28|in|mm|0|abbr=on}}

| tractiveeffort = {{convert|44244|lbf|kN|1|abbr=on|lk=on}}

| operator = Wabash Railroad

| fleetnumbers = 700–704 (formerly 2600-2604 Class K5 rebuilt to Class P1 700-704) 705-706 (formerly 2743-2744 Class K4 rebuilt to Class P1 705-706)

| retiredate = 1956

| disposition = All scrapped by 1956

}}

{{Cite journal|title=Wabash Class K 2-8-2}}Wabash Class K4 and K5 The Wabash Railroad's class P-1 comprised seven 4-6-4 steam locomotives rebuilt from 5 Class K-5 2-8-2's numbered 2600-2604 and 2 Class K-4 2-8-2's numbered 2743 and 2744 .

The first five were constructed in 1943 and 1944 using the boilers from their unsuccessful K-5 class three-cylinder 2-8-2 locomotives that had been built by the American Locomotive Company's Schenectady works in 1925.

Two additional locomotives were converted in 1946 and 1947 using a pair of K-4 class 2-8-2s as donors at the Decatur Shops in Illinois .

The engines were semi-streamlined with long "elephant ear" smoke deflectors, and painted blue with a broad white stripe trimmed in red down the side of the locomotive and on the steam dome; the tenders received a similar paint job. The locomotives’ number was painted on the tender, and in later years the flag logo was applied to the deflectors. They ran until 1956.