What was the heaviest locomotive ever built?

The Big Boy has the longest engine body of any reciprocating steam locomotive, longer than two 40-foot buses. They were also the heaviest reciprocating steam locomotives ever built; the combined weight of the 772,250 lb (350,290 kg) engine and 436,500 lb (198,000 kg) tender outweighed a Boeing 747.



People Also Ask

It is generally agreed that the largest steam locomotives are the 4-8-8-4 'Big Boys', built by the American Locomotive Company in 1941-44. They are 39.852 m (130.74 ft) long and weigh 508.02 tonnes (1.12 million lb) with tenders.

MORE DETAILS

The Centennials were the largest diesel-electric locomotives ever built. Actually comprising two engines on one frame, they delivered 6,600 horsepower. Designed and built exclusively for Union Pacific Railroad, the units were named in honor of the railroad's centennial anniversary celebration in 1969.

MORE DETAILS

Union Pacific reached out to EMD for more power, and the result was the behemoth EMD DDA40X. Often cited as both the largest and most powerful diesel-electric locomotive ever built, the 98-foot, 5-inch, 475,830-pound machine is staggering. The prime movers are a pair of EMD 16-645E3A diesels.

MORE DETAILS

On 3 July 1938, Mallard broke the world speed record for steam locomotives at 126 mph (203 km/h), which still stands today.

MORE DETAILS

On 3 July 1938, Mallard broke the world speed record for steam locomotives at 126 mph (203 km/h), which still stands today. Leading dia.

MORE DETAILS

The Union Pacific Centennial is the largest and most powerful diesel locomotive ever built.

MORE DETAILS

Alco PA Locomotives Arguably the most beautiful diesel locomotive ever built, sadly no Alco PAs were originally preserved. Today, one is under restoration.

MORE DETAILS

Puffing Billy is the world's oldest surviving steam locomotive, constructed in 1813–1814 by colliery viewer William Hedley, enginewright Jonathan Forster and blacksmith Timothy Hackworth for Christopher Blackett, the owner of Wylam Colliery near Newcastle upon Tyne, in the United Kingdom.

MORE DETAILS

Fuel Tank. This huge tank in the underbelly of the locomotive holds up to 5,500 gallons (20,820 liters) of diesel fuel, plus an additional 300 gallons (1,135 liters) of coolant, and 250 gallons (946 liters) of engine oil.

MORE DETAILS

Of the eighteen built, three survive and are on display in Minnesota: No. 225 at Proctor, No. 227 at the Lake Superior Railroad Museum in Duluth and No. 229 at Two Harbors.

MORE DETAILS

Twenty-five Big Boys were built exclusively for Union Pacific Railroad, the first of which was delivered in 1941. Of the eight remaining Big Boys in existence, No. 4014 is the only one operating today. The Big Boys were about 133 feet long and weigh 1.2 million pounds.

MORE DETAILS

Rail cars are far bigger than truck trailers What does that look like in terms of weight? Most rail cars can have a gross weight (the total weight of the load, including the weight of the rail car itself) of up to 286,000 pounds. Heavy axle rail cars can have a gross weight of up to 315,000 pounds.

MORE DETAILS

One of the most beautiful steam locomotives ever built, the S1 was designed by Raymond Loewe. Poor balancing caused wheel-spin and only one was ever built, for the Pennsylvania Railroad in 1939.

MORE DETAILS

In 1934, Flying Scotsman achieved the first authenticated 100 mph (161 km/h) by a steam locomotive.

MORE DETAILS

The largest number of coupled driving wheels was 14 (seven axles) on the ill-fated AA20 4-14-4 locomotive.

MORE DETAILS

The Big Boy has the longest engine body of any reciprocating steam locomotive, longer than two 40-foot buses. They were also the heaviest reciprocating steam locomotives ever built; the combined weight of the 772,250 lb (350,290 kg) engine and 436,500 lb (198,000 kg) tender outweighed a Boeing 747.

MORE DETAILS

4014 restoration cost, but Wrinn estimated at least $4 million based on similar restorations.

MORE DETAILS