The Old Gotthard Tunnel Route - Driver's Eye View
The Old Gotthard Tunnel Route - Driver's Eye View
xem The Old Gotthard Tunnel Route - Driver's Eye View Vietsub Xem Phim Trực Tuyến Full HD Có Phụ Đề Tiếng Việt. The original Gotthard railway tunnel through the Swiss Alps, took ten years to build and cost 147 lives. It was a mammoth undertaking and required the construction of long ramps on either side totalling 85 miles. Dozens of tunnels, viaducts and bridges were necessary. The ruling gradient of 1 in 37 was deemed to be just about the maximum that the original steam locomotives could handle, even then, trains were usually double-headed and even had banking engines attached at the rear! In order even to keep to this severe gradient, the engineers had to construct a number of additional spiral tunnels to gain height, hewn out of solid rock…
- Thể loại: Phim Tài Liệu
- Quốc gia: United Kingdom
- Giám đốc:
- Diễn viên: Jonathan Kydd,
