The 5AT Advanced Technology steam locomotive was a conceptual design conceived by the British engineer David Wardale, and first described in his 1998 definitive work on modern steam, The Red Devil and
The 5AT locomotive illustrated in its final form.
Livio Dante Porta
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Livio Dante Porta was an Argentine steam locomotive engineer. He is particularly remembered for his innovative modifications to existing locomotive systems in order to obtain better performance and en
5AT Advanced Technology Steam Locomotive
…228 mi) at a maximum operating speed and power. The above performance predictions were predicated on several technical advances, mostly developed by Ing. L.D. Porta, all of which have been proven in practice, in most cases on Wardale's SAR Class 26 "The Red Devil" and described in Wardale's book on the subject…
Porta (centre, with dark cap and scarf) and engine crew in 1959
Ing.L.D.Porta, the FCAF 500 mm (19+3⁄4 in) gauge Garratt named in his honour
Argentina, Porta's first locomotive