page_title: 4-6-4+4-6-4
hierarchical_section_title: 4-6-4+4-6-4
caption_attribution_description: English: NRZ 15th class Garratt No 406 Ikolo (Hornbill) at Victoria Falls, Zimbabwe. Deutsch: Die NRZ Garratt der Baureihe 15 mit der Ordnungsnummer 406 Ikolo (Nashornvögel) bei Victoria Falls in Simbabwe. Afrikaans: Die 4-6-4+4-6-4 Klas 15-Garrattlokomotief Nr. 406 van die NRZ, te Victoria-waterval in Zimbabwe.
context_page_description: Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 4-6-4+4-6-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-6-4 locomotives operating back to back, with the boiler and cab suspended between the two engine units. Each engine unit has two pairs of leading wheels in a leading bogie, followed by three coupled pairs of driving wheels and two pairs of trailing wheels in a trailing bogie. Since the 4-6-4 type is usually known as a Baltic, the corresponding Garratt type could be referred to as a Double Baltic.
context_section_description: Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 4-6-4+4-6-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-6-4 locomotives operating back to back, with the boiler and cab suspended between the two engine units. Each engine unit has two pairs of leading wheels in a leading bogie, followed by three coupled pairs of driving wheels and two pairs of trailing wheels in a trailing bogie. Since the 4-6-4 type is usually known as a Baltic, the corresponding Garratt type could be referred to as a Double Baltic.
caption: Zimbabwean 15th class no. 406 Ikolo (Hornbill)
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