Canadian National Railway No. 6400 is a preserved 4-8-4 “Confederation” or “Northern” type locomotive built in June 1936 for the Canadian National Railway (CNR).

Specs - serial #68715, U-4-a class, 77" drivers, impressive 275 psi boiler pressure, 24x30" cylinders, engine weight of 280,280 lb, tractive effort of 52,457 lb. Power, speed and streamlining all shaped one of the most iconic Canadian locomotives ever built. CN 4-8-4 #6400 was built by the Montreal Locomotive Works in June of 1936.

The Canadian National No. 6400 is a Class U-4-a 4-8-4 "Northern" type steam locomotive built by Montreal Locomotive Works in 1936 for the Canadian National Railway, and the first U-4 class "Confederation" to be delivered.

CN 6400 used roller-bearing boxes on all running and tender axles, with bearings made by SKF of Sweden. [2] CN ordered 155 U-2 classes from 1927 to 1944. CN also ordered 5 U-4a locomotives in 1936, and the GTW ordered 36 U-3 classes from 1927 to 1943.

Apr 10, 2015 · Manufactured at the Montreal Locomotive Works for Canadian National Railways (CNR) in 1936, this steam locomotive featured a semi-streamlined body — designed by National Research Council of Canada engineers — and a state-of-the-art steam engine.

3 days ago · Here is 6400 in its 1939 Royal Train blue livery. Just a little side note to this. The number plate from 6400's sister engine # 6401 (it might have been 6404) sold at auction five or six years ago for $7,000 Canadian, which would translate into about $5,800 U.S. The reason for the rediculously high price?

CN 4-8-4 #6400 - Canadian National Power, speed and streamlining all shaped one of the most iconic Canadian locomotives ever built. CN 4-8-4 #6400 was built by the Montreal Locomotive Works in June of 1936.

Mar 5, 2019 · In Canada both the CPR and CNR were experimenting with their versions. The Canadian National Railway 6400 was the result of wind tunnel testing at the National Research Council and there were five of these built built for CNR, designated the U4A class.

Very slight differences between these engines and the CNR U-4s numbered 6400-6404 (Locobase 242). Note the light average axle loading and the weight per foot of driving wheelbase. Direct heating surface area included a combustion chamber and thermic syphons. Piston valves measured a relatively small 12" (305 mm) in diameter.

The design of CN 6400, a semi-streamlined locomotive, was a result of wind tunnel research conducted by the National Research Council of Canada (NRC) in the 1930s. NRC researchers were looking for ways to improve smoke clearance around the locomotive cabs of steam trains.