The Pennsylvania Railroad's class HH1s comprised a single 2-8-8-2 type steam locomotive.[2] Unlike most Pennsylvania Railroad steam locomotives, it had a wagon-top boiler. It was built by the American Locomotive Company (ALCO) in 1911. For 17 years, the single HH1s served as a helper until 1928. It had the road number 3396 and was subsequently scrapped after it was taken out of service in 1928.

References

  1. ^ Withuhn, William L. (1 March 2019). American Steam Locomotives: Design and Development, 1880–1960. Indiana University Press. ISBN 978-0-253-03934-7. Retrieved 27 November 2024.
  2. ^ Drury, George H., ed. (1993). Guide to North American steam locomotives. Kalmbach Books. ISBN 978-0-89024-206-3. Retrieved 27 November 2024.
Allikas: https://en.wikipedia.org/wiki/Pennsylvania_Railroad_class_HH1s
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