The only route with passenger numbers and trip times suitable for high-speed service in Canada at the time was the Quebec City–Windsor Corridor, especially the 335-mile (539 km) portion between Toronto and Montreal that accounts for two-thirds of the passengers in the Corridor.

The TurboTrain, or simply "Turbo" as CN preferred, was CN's first attempt to provide higher speeds along the Corridor.
Designed in the early 1960s by Sikorsky Aircraft, the TurboTrain used a licensed version of Talgo's passive tilt system and a new turbine-powered locomotive.
The CN trainsets were built in Canada by a consortium of Dofasco for the bogies and suspension system, Alcan for the car bodies, and Montreal Locomotive Works (MLW) for the engines and power systems.
All three companies gained valuable experience with modern passenger train design as a result of the project.

The Turbo was far from perfect, however.
Its articulated bogies meant that the train could only be uncoupled in the maintenance yards.
If there was a problem with a single car the entire train had to be taken out of service, and the inability to easily change train length significantly reduced its flexibility.
The design featured unique doors at either end to allow two trains to be coupled into one longer one, but in practice this proved too much trouble to be worth it.
Moreover, while the turbine power was lightweight and proved very reliable, it was also very inefficient in fuel terms.
The only route with passenger numbers and trip times suitable for high-speed service in Canada at the time was the Quebec City–Windsor Corridor, especially the 335-mile (539 km) portion between Toronto and Montreal that accounts for two-thirds of the passengers in the Corridor.
The TurboTrain, or simply "Turbo" as CN preferred, was CN's first attempt to provide higher speeds along the Corridor. Designed in the early 1960s by Sikorsky Aircraft, the TurboTrain used a licensed version of Talgo's passive tilt system and a new turbine-powered locomotive. The CN trainsets were built in Canada by a consortium of Dofasco for the bogies and suspension system, Alcan for the car bodies, and Montreal Locomotive Works (MLW) for the engines and power systems. All three companies gained valuable experience with modern passenger train design as a result of the project.
The Turbo was far from perfect, however. Its articulated bogies meant that the train could only be uncoupled in the maintenance yards. If there was a problem with a single car the entire train had to be taken out of service, and the inability to easily change train length significantly reduced its flexibility. The design featured unique doors at either end to allow two trains to be coupled into one longer one, but in practice this proved too much trouble to be worth it. Moreover, while the turbine power was lightweight and proved very reliable, it was also very inefficient in fuel terms.
LRC (train)