As a consequence, the internal combustion engines, the diesels, can be used when the boat is submerged.
The provincial sprinters, the fast diesels, are of a high standard and are very desirable.
They also emit less visible smoke and odour than diesels, which is an important factor in urban areas.
Diesels produce half the level of hydrocarbon emissions including the proven carcinogenic benzine.
With gas turbines and diesels the waste heat appears in the exhaust gases, which are at a useful temperature.
Although the line is electrified, we might still have to use diesels if rolling stock is not available.
In view of this decision, the capital investment of the railways will have to be aimed at diesels.
We want them because they are more reliable than diesels and cost much less to maintain.
