Second 4 engine 5929 with coal-fired assist engine 5813 cut in behind. On 2.2% grade in Kicking Horse Pass.
Canadian Pacific/Nicholas Morant

The extended fairing around the stack housed a cowl which was raised by compressed air to deflect the exhaust backwards in tunnels and snowsheds to prevent damage to the roofs of these structures. However, this made the cab worse and were unpopular therefore not always used. This was a little-known feature.

This was one of many Canadian Pacific Railway Public Relations Department photographs taken by company photographer Nicholas Morant and was first published in 1978 in Volume One of Canadian Pacific in the Rockies by D. M. Bain.
This was the first of many interesting booklets printed over the next 30 years by the BRMNA.