North America never used them [or did they somewhere that I’ve never heard of?]. They were otherwise used all over the world and look cool, I like them. The coal and water was on the traction wheels, looks like a great design. Why was this not used in the US ? Or even Canada. A CPRail Garrat would have made sense to me, or a Union Pacific Garratt.
Alco was the US licensee for Beyer, Peacock, but they never managed to sell the concept to any North American railroads. But there is one Garratt in the USA, a former South African NGG13, privately owned in by some old mate in Texas.
Mark.
…What happened to the T E as the water and coal were depleted…?
According to “Articulated Locomotives” by Lionel Wiener, the factor of adhesion was calculated based on empty coal and water bunkers.
The only two countries I’ve ever heard of as having Garratts were South Africa and Australia, so I don’t think you could really say they were used “all over the world.”
There were over 1,600 built used in 13 plus countries…the UK, India, Australia, Peru, etc …one was proposed as an alternate to the ACE design.Some are still in regular use in Africa…
The same problem exists with modern diesels with huge fuel tanks, less T E when empty, and with todays calculated slim margins. Still carrying the fuel would have it’s advantages over pulling it dead weight in a tender car.
Garretts were usefull because they spread the locomotives weight over a greater length and more axels. This was not necessary in North America where lines were built for heavier traffic and axel loads.
What was their top speed?
25-30mph…luggers…there were proposals for mallet versions…they are still used in coal service …
…They must have had a good measure of success where they were used with still a few out there somewhere on the job. I never thought they were a good looking engine like many of our steam engines were in profile.
Yes, you could really say that. You obviously haven’t heard of Africa, South America, Asia, India, Russia, the Middle East, Europe, the UK and New Zealand, all places where Garratts ran.
Mark.
Sorry, you’re wrong. They were free-steaming, free-running fast freight AND passenger power. Many Garratts were designed and built as express passenger engines, engines for the Algerian, Spanish and Brazilian railways being some of the better known examples. Our AD60s were good for sustained 60mph running, and they were only ever intended as freight engines. I speak from experience
Mark.
Rhodesia Railways (since divided at the Zambesi River between Zambia and Zimbabwe) operated double-Hudson (4-6-4+4-6-4) Garratts in passenger service.