Last revised: October 10, 2026
By: Adam Burns
The Chesapeake & Ohio’s Hudsons were eighteen 4-6-4s in three classes. Baldwin built eight L-2 engines, 300–307, in December 1941 and January 1942, works 64351–64358. Huntington rebuilt five F-19 Pacifics, 490–494, into class L-1 in 1946 and 1947. Baldwin then built five L-2-A engines, 310–314, in August 1948, works 73533–73537. An L-2-A weighed 443,000 pounds, the heaviest 4-6-4 built. Number 490 is the sole survivor, at the B&O Railroad Museum in Baltimore.
Chesapeake & Ohio L-1 No. 490 at the Huntington heavy repair shops in 1947. The photograph has been colorized by Patty Allison. The photographer of the underlying print is unknown. Alco’s Richmond works built 490 in 1926 as an F-19 Pacific, and Huntington rebuilt it as a Hudson in 1946.
On this page: At a glance · West of Hinton · The L-2 of 1941 · Specifications · Five homemade Hudsons · The L-2-A of 1948 · Name trains, then storage · Roster · No. 490
| Item | Detail |
|---|---|
| Railroad | Chesapeake & Ohio. Three classes of 4-6-4: L-2, L-1, and L-2-A |
| Quantity | Eighteen. L-2 300–307. L-1 490–494. L-2-A 310–314 |
| Builders | Baldwin, thirteen engines, 1941–42 and 1948. The L-1s began as Alco Richmond Pacifics of 1926 and were rebuilt at Huntington in 1946–47 |
| Drivers | 78 in on the Baldwin engines. 74 in on the L-1, the Pacific diameter kept at the rebuild |
| Cylinders and boiler | L-2 and L-2-A: 25 × 30, 255 psi. L-1: 27 × 28, 210 psi |
| Tractive effort | L-2 and L-2-A: 52,103 lb, plus a booster. L-1: 49,237 lb, plus a 12,000-lb booster |
| Heaviest engine | L-2-A, 443,000 lb. With its tender, 836,000 lb |
| Where they ran | The level west end, from Hinton to Huntington, Cincinnati, and Detroit. The Greenbriers kept the mountain passenger trains |
| Retired | Stored by 1953 once the E8s had the regular passenger trains. L-1s left the roster from April 1953 to mid-1955. L-2-A scrapping began in 1955 |
| Survivor | 490 only. Purchased by the B&O Railroad Museum in 1968. On display in Baltimore since 1971 |
Weights, heating surfaces, tractive effort, and the booster figures are Steve Llanso’s transcription of the C&O diagram books and the Baldwin cards. The December 1946 book covers the L-2 and the L-1. The April 1947 book and Baldwin negative 14,639 cover the L-2-A. The weight comparison with a New York Central J-3a is Kevin P. Keefe’s, quoting the class cards. Information compiled October 10, 2026.
The Chesapeake & Ohio was a coal railroad, and its new passenger power in the 1930s was built for the grades. The Greenbriers, Lima 4-8-4s, the first of them in 1935, took the mountain passenger trains. West of Hinton, West Virginia, the line to Huntington, Cincinnati, and Detroit was the level end. That was a 4-6-4 job: a six-coupled engine with a four-wheel trailing truck, free to run, and heavy enough for a long name train.
The railroad’s last new Pacifics were already on the property. Alco’s Richmond works completed five class F-19 engines, 490–494, on February 22 through February 26, 1926, works 66555–66559. They had 74-inch drivers, 27-by-28-inch cylinders, a 200-pound boiler, Baker valve gear, an Elesco feedwater heater, and Vanderbilt tenders. The engine weight was about 331,500 pounds, and the tractive effort about 46,900 pounds. Those five became the L-1s. The first Hudsons the railroad bought new were the L-2s.
Baldwin delivered 300–307 in December 1941 and January 1942. The works numbers run 64351–64358 in that order. Number 303 is recorded in December 1941, and 307 in January 1942. Robert R. Young took the chair of the Chesapeake & Ohio in 1942, so this order belongs to the year before his passenger program. The L-1 rebuilds and the later L-2-A order sit with that program, and with the M-1 turbines.
The L-2 is a conventional two-cylinder engine with the late equipment of a 1941 passenger locomotive. Baker valve gear moved 14-inch piston valves. The drivers are 78 inches, the cylinders 25 by 30 inches, and the boiler 255 pounds. Starting tractive effort is 52,103 pounds. A Franklin Type E booster on the trailing truck added 12,600 pounds and could stay cut in to 33 miles an hour. The factor of adhesion is 4.17. Roller bearings were on every axle. Number 300 also carried them on the side rods and the main rods.
The engine weighs 439,500 pounds, with 217,500 of that on the drivers and an axle load of 72,500. The tender, loaded, weighs 393,000 pounds and holds 21,000 gallons and 30 tons of coal. Engine and tender together are 832,500 pounds. An Elesco Type E feedwater heater sat on the boiler. The railroad rated the class to pull a fifteen-car train at 90 miles an hour on tangent level track. The published length is 108 feet.
Number 300 was also the engine fitted, about 1948, with Union Pacific-style elephant-ear smoke deflectors. A Cincinnati view of February 13, 1953, shows them gone. The steamlocomotive.com account names 300 as one of two Chesapeake & Ohio locomotives given that deflector.
| Specification | L-2, 300–307 | L-2-A, 310–314 | L-1, 490–494 |
|---|---|---|---|
| Builder | Baldwin | Baldwin | Alco, Richmond, 1926. Rebuilt at Huntington, 1946–47 |
| Works numbers | 64351–64358 | 73533–73537 | 66555–66559, the Pacific numbers. Huntington issued none |
| Built | December 1941–January 1942 | August 1948. Ordered 1947 | Pacifics completed February 22–26, 1926. Rebuild 1946–47. No. 490 in 1946 |
| Valve gear | Baker. 14-inch piston valves | Franklin rotary-cam poppet valves | Franklin Type A oscillating-cam poppet valves |
| Driver diameter | 78 in | 78 in | 74 in |
| Cylinders | 25 × 30 in | 25 × 30 in | 27 × 28 in |
| Boiler pressure | 255 psi | 255 psi | 210 psi |
| Tractive effort | 52,103 lb | 52,103 lb | 49,237 lb |
| Booster | Franklin Type E, 12,600 lb, to 33 mph | 14,200 lb | Franklin Type E-1, 12,000 lb, to 35 mph. With the booster, 61,237 lb |
| Factor of adhesion | 4.17 | 4.21 | 4.11 |
| Weight on drivers | 217,500 lb. Axle load 72,500 lb | 219,500 lb | 202,500 lb. Axle load 67,900 lb |
| Engine weight | 439,500 lb | 443,000 lb | 388,700 lb |
| Tender, loaded | 393,000 lb | 393,000 lb | 355,300 lb |
| Engine and tender | 832,500 lb | 836,000 lb | 744,000 lb |
| Water / coal | 21,000 gal / 30 tons | 21,000 gal / 30 tons | 18,000 gal / 28 tons |
| Grate | 90 sq ft | 90.20 sq ft | 80.70 sq ft |
| Firebox | 460 sq ft | 405 sq ft | 281 sq ft |
| Tubes and flues | 50 tubes, 2.25 in. 198 flues, 3.5 in. Length 18 ft | Same counts and length as the L-2 | 41 tubes, 2.25 in. 195 flues, 3.5 in. Length 20.50 ft |
| Evaporative / superheater | 4,233 / 1,810 sq ft. Combined 6,043 | 4,178 / 1,785 sq ft. Combined 5,963 | 4,414 / 2,001 sq ft, Type E. Combined 6,415 |
| Feedwater heater | Elesco Type E | Feedwater heater | Worthington, taken from an F-17 |
| Driver / engine / overall wheelbase | 14 ft / 41.47 ft / 91.69 ft | 14 ft / 41.46 ft / 93.87 ft | 13 ft / 37.96 ft / 87.77 ft |
| Published length | 108 ft 0 in | 108 ft 0 in | The diagram records the wheelbases |
The L-2 firebox figure of 460 square feet includes two thermic syphons at 96 square feet, a combustion chamber at 81, and arch tubes at 19. The tube and flue heating surface under that firebox is 3,773 square feet. The L-2-A kept those tube and flue counts and that 3,773 square feet. Its firebox is the part that changed: four security circulators contribute 60 square feet of a 405-square-foot firebox, in place of the syphons and the arch tubes. The adhesive weight on an L-2-A is the 219,500 pounds on the drivers.
The L-1s were rebuilt for The Chessie, the daylight train that was also the reason for the M-1 turbines. Huntington did the work in 1946 and 1947. Number 490’s rebuild date is 1946. The shops issued no new works numbers. The road numbers stayed 490–494.
Karen Parker’s account of the rebuild, in the Chesapeake and Ohio Historical Magazine for May 2006, is the itemized one. Huntington gave each engine a new one-piece cast frame with integral cylinders and the main air reservoir. Roller bearings went on every axle and into the main and side rods. Multiple-bearing crossheads replaced the F-19’s alligator crossheads. The drivers were new, and cross-counterbalanced for speed. Inside the boiler everything was new, and the outer shell was reused. The firebox was renewed and otherwise left as it was. There was no combustion chamber. Parker’s note is that the boiler’s length stood in the way of one.
A Type E superheater replaced the Pacific’s Type A. Superheater surface went to 2,001 square feet, about 65 percent more, and the superheat to about 250 degrees against about 150. Boiler pressure rose from 200 pounds to 210. The cylinders stayed 27 by 28 inches and received Franklin Type A oscillating-cam poppet valves. A four-wheel trailing truck carried a Franklin Type E-1 booster of 12,000 pounds, usable to 35 miles an hour. A Worthington feedwater heater came off an F-17 Pacific, and that F-17 received the F-19’s Elesco. The cab was new, and large. The museum’s label for 490 adds a front-end throttle.
The finished engine weighs 388,700 pounds, up from about 331,500 as a Pacific, with 202,500 on the drivers and an axle load of 67,900. Tractive effort is 49,237 pounds, and 61,237 with the booster cut in. The tender weighs 355,300 pounds loaded and carries 18,000 gallons and 28 tons of coal. Engine and tender together are 744,000 pounds.
The casing was stainless steel, and at the rebuild the sloped nose and the upper casing were the railroad’s orange, the color it had used from 1889 into the 1920s. About 1948 the engines received the yellow livery. Crews called them Yellowbellies. The tender was cased in fluted stainless steel so that it would meet the Budd cars. Number 494 left Huntington without the streamlined cowl. The other four wore it.
Eugene Huddleston’s anecdote, as Parker recorded it, is the speed story that belongs with the class. An engineer with six heavyweight cars found the engine riding so easily that only the dynamic augment, once he was past the speed the counterbalance was set for, told him he was at 95 miles an hour. That is one trip. It is not a figure on the diagram.
When The Chessie was not launched, the five L-1s went into the regular passenger and mail pool. Their later assignments, in Parker’s account, were Charlottesville–Washington and Charlottesville–Newport News.
In 1947 the railroad ordered five more Hudsons from Baldwin. They arrived in August 1948 as class L-2-A, numbers 310–314, works 73533–73537. They are the last new express-passenger steam locomotives a U.S. railroad bought from a commercial builder, and they are Baldwin’s last passenger steam. Norfolk & Western J 611 was built at Roanoke in 1950, a shop-built passenger engine on the Class J page. Baldwin’s last steam locomotives for a U.S. railroad were the class H-6 2-6-6-2s of 1949, numbers 1300–1309, on the steam roster.
The cylinders, the 255-pound boiler, the 78-inch drivers, and the 52,103-pound tractive effort repeat the L-2. The engine is 3,500 pounds heavier, at 443,000, and the weight on the drivers is 219,500. Keefe’s comparison is the New York Central J-3a of 1938, at 360,000 pounds. The loaded tender stays 393,000 pounds, so engine and tender are 836,000. The booster is rated at 14,200 pounds. The factor of adhesion is 4.21.
The machinery is the late-steam list. Franklin rotary-cam poppet valves replaced the L-2’s piston valves. The frame is a one-piece cast-steel bed with the cylinders cast in. Roller-bearing journals are 13 inches on the main driver, 12½ inches on the other drivers, 8¼ inches on the engine truck, and 7 inches on the tender trucks. The air brake acts on every engine wheel and every tender wheel. A mechanical stoker and a feedwater heater are on the specification. Keefe adds a cast-steel pilot and a combined steam-and-sand dome. The published length, again, is 108 feet. The engine-and-tender wheelbase is 93.87 feet, longer than the L-2’s 91.69.
Thomas W. Dixon, Jr., in Chesapeake & Ohio Passenger Service, 1847–1971, puts three name trains on this west-end work. The Sportsman ran Washington and Newport News to Cincinnati and Detroit. The F.F.V. and the George Washington ran Washington and Newport News to Cincinnati and Louisville. Parker’s territory for the Hudsons is the same west end in shorter form: Hinton to Huntington, Cincinnati, and Detroit. The Greenbriers stayed with the mountain passenger trains.
Passenger diesels arrived late in 1951. Through 1952 the Hudsons still ran secondary trains, extras, and standby. By 1953 enough E8s had dieselized the regular passenger trains, and the big 4-6-4s were stored. Off the name trains they were finished. A Greenbrier could go into freight. A Hudson of this weight, with 74- or 78-inch drivers, was a passenger engine. Scrapping of the L-2-A began in 1955. None of the thirteen Baldwin engines was saved.
The L-1s left on their own schedule. The first two were retired in April 1953. The other three were gone by mid-1955. H-6 number 1308 made the railroad’s last steam run, on February 29, 1956.
| When | What the record shows |
|---|---|
| February 22–26, 1926 | F-19 Pacifics 490–494 completed at Alco, Richmond |
| December 1941–January 1942 | L-2 300–307 delivered by Baldwin |
| 1942 | No. 490, still a Pacific, comes off the George Washington. Heavier 4-8-4s have the mainline passenger trains. The F-19s go to secondary trains and, during the war, to troop trains |
| 1946–47 | Huntington rebuilds 490–494 as L-1 Hudsons. No. 490’s rebuild is 1946 |
| About 1948 | The yellow livery. No. 300 carries elephant-ear deflectors for a time |
| August 1948 | L-2-A 310–314 delivered |
| 1950 | No. 490 on the Caravan of Progress |
| Late 1951–1952 | Passenger diesels arrive. Hudsons hold secondary trains, extras, and standby |
| 1953 | Regular passenger trains dieselized. The Baldwin 4-6-4s stored. First two L-1s retired in April. No. 490 leaves passenger service |
| 1955 | Remaining L-1s retired by mid-year. L-2-A scrapping begins |
| February 29, 1956 | Last C&O steam, H-6 1308 |
| No. | Class | Builder | Works no. | Built | Disposition | Notes |
|---|---|---|---|---|---|---|
| 300 | L-2 | Baldwin | 64351 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | Roller bearings on the side rods and the main rods. Elephant-ear deflectors from about 1948, gone by February 13, 1953, at Cincinnati |
| 301 | L-2 | Baldwin | 64352 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | |
| 302 | L-2 | Baldwin | 64353 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | |
| 303 | L-2 | Baldwin | 64354 | December 1941 | Stored by 1953. Scrapped | Recorded as December 1941 |
| 304 | L-2 | Baldwin | 64355 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | |
| 305 | L-2 | Baldwin | 64356 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | |
| 306 | L-2 | Baldwin | 64357 | Dec. 1941–Jan. 1942 | Stored by 1953. Scrapped | |
| 307 | L-2 | Baldwin | 64358 | January 1942 | Stored by 1953. Scrapped | Recorded as January 1942 |
| 310 | L-2-A | Baldwin | 73533 | August 1948 | Stored by 1953. Scrapping from 1955 | |
| 311 | L-2-A | Baldwin | 73534 | August 1948 | Stored by 1953. Scrapping from 1955 | |
| 312 | L-2-A | Baldwin | 73535 | August 1948 | Stored by 1953. Scrapping from 1955 | Works number recorded for 312 |
| 313 | L-2-A | Baldwin | 73536 | August 1948 | Stored by 1953. Scrapping from 1955 | |
| 314 | L-2-A | Baldwin | 73537 | August 1948 | Stored by 1953. Scrapping from 1955 | |
| 490 | L-1 | Alco, Richmond. Huntington rebuild | 66555 | Feb. 22, 1926. Rebuilt 1946 | B&O Railroad Museum, Baltimore, since 1971 | Only surviving C&O Hudson. Franklin Type A poppet valves. Caravan of Progress, 1950 |
| 491 | L-1 | Alco, Richmond. Huntington rebuild | 66556 | Feb. 23, 1926. Rebuilt 1946–47 | Scrapped. Class retired April 1953–mid-1955 | |
| 492 | L-1 | Alco, Richmond. Huntington rebuild | 66557 | Feb. 24, 1926. Rebuilt 1946–47 | Scrapped. Class retired April 1953–mid-1955 | |
| 493 | L-1 | Alco, Richmond. Huntington rebuild | 66558 | Feb. 25, 1926. Rebuilt 1946–47 | Scrapped. Class retired April 1953–mid-1955 | |
| 494 | L-1 | Alco, Richmond. Huntington rebuild | 66559 | Feb. 26, 1926. Rebuilt 1946–47 | Scrapped. Class retired April 1953–mid-1955 | Left Huntington without the streamlined cowl |
The Baldwin works numbers follow each builder’s consecutive block. Three engines pin the line: 302 is 64353, 303 is 64354, and 307 is 64358, and on the L-2-A, 312 is 73535. The L-1 works numbers are the 1926 Richmond numbers. Nothing of 300–307 or 310–314 survives.
Chesapeake & Ohio 4-6-4 #490 (L-1) is seen here at the shops in Huntington, West Virginia on April 17, 1971. These streamlined Hudsons (five in all) were rebuilt from F-19 Pacifics during the late 1940s for service on the never-launched "Chessie. The B&O Railroad Museum had purchased the engine in 1968, and Huntington was doing the cosmetic work before the engine went on display in Baltimore. This unit is the only surviving example from the class. John Corns photo.
As an F-19, 490 drew the Sportsman from 1930, on the Detroit and Cincinnati runs. From 1932 to 1942 it was on the George Washington between Cincinnati and Washington. In 1942 the heavier 4-8-4s took the mainline passenger trains, and 490 came off that job. The Pacifics spent the rest of the war on secondary trains and on troop trains. The Hudson rebuild came after that.
In 1950 the engine left ordinary passenger work long enough to tour with the Caravan of Progress, a train of the railroad’s newest equipment. It came off passenger service in 1953 and was stored at Huntington. The museum’s own line is that 490 was one of the last engines to pull a passenger train on the Chesapeake & Ohio. In 1968 the B&O Railroad Museum purchased it and sent it back to Huntington for a cosmetic restoration. It has been on display in Baltimore since 1971. Wikipedia records that the engine was moved indoors in 2005.
It is the only surviving Chesapeake & Ohio Hudson, and the only surviving L-1. The Franklin Type A poppet valves are still on the engine.
Oct 16, 26 03:58 PM
Oct 16, 26 03:52 PM
Oct 16, 26 03:21 PM
Oct 16, 26 02:29 PM
Oct 16, 26 02:26 PM
Oct 16, 26 12:52 PM
Oct 16, 26 12:46 PM
Oct 16, 26 12:42 PM
Oct 16, 26 11:32 AM
Oct 16, 26 09:40 AM
Oct 16, 26 09:28 AM
Oct 15, 26 04:21 PM
Oct 15, 26 04:17 PM
Oct 15, 26 02:54 PM
Oct 15, 26 10:55 AM
Oct 15, 26 10:46 AM
Oct 15, 26 10:39 AM
Oct 15, 26 10:34 AM
Oct 15, 26 12:04 AM
Oct 14, 26 10:44 PM
Oct 14, 26 09:04 PM
Oct 14, 26 08:49 PM
Oct 14, 26 08:46 PM
Oct 14, 26 08:36 PM
Oct 14, 26 08:29 PM
Oct 14, 26 08:02 PM
Oct 14, 26 06:47 PM
Oct 14, 26 03:20 PM
Oct 14, 26 03:03 PM
Oct 14, 26 12:40 PM
Oct 14, 26 10:09 AM
Oct 14, 26 10:00 AM
Oct 14, 26 09:51 AM
Oct 14, 26 12:17 AM
Oct 14, 26 12:03 AM
Oct 13, 26 04:32 PM
Oct 13, 26 04:26 PM
Oct 12, 26 11:59 PM
Oct 12, 26 11:52 PM
Oct 12, 26 11:45 PM
Oct 12, 26 11:24 PM
Oct 12, 26 11:14 PM
Oct 12, 26 10:52 PM
Oct 12, 26 10:33 PM
Oct 12, 26 10:10 PM
Oct 12, 26 09:55 PM
Oct 12, 26 09:52 PM
Oct 12, 26 09:27 PM
Oct 12, 26 08:41 PM
Oct 12, 26 02:44 PM