User:Tabletop/Tunnel

Fumes

 * 1) (diff) (hist) . . Ardglen Tunnel‎; 00:50 . . (-12) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 2) (diff) (hist) . . Combe Down Tunnel‎; 00:49 . . (-58) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 3) (diff) (hist) . . Lapstone Zig Zag‎; 00:48 . . (-28) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 4) (diff) (hist) . . Ruling gradient‎; 00:47 . . (-397) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 5) (diff) (hist) . . Woodhead Tunnel‎; 00:46 . . (-29) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 6) (diff) (hist) . . Spiral (railway)‎; 00:45 . . (-28) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 7) (diff) (hist) . . Tunnel‎; 00:44 . . (-30) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 8) (diff) (hist) . . Dove Holes Tunnel‎; 00:44 . . (-66) . . NE2 (talk | contribs) (Removing links to deleted rathole tunnel.)
 * 9) (diff) (hist) . . Cascade Tunnel‎; 00:44 . . (-21) . . NE2 (talk | contribs) (Removed links to deleted rathole tunnel.)

Gallery
The cross section of tunnels vary considerable:


 * Tunnel 3 in Eritrea

Table

 * ( in order of opening)
 * Box Tunnel _ _ _ _ 1 in 100 - 1.00% - 1841 - double track
 * Woodhead Tunnel 1 in 201 - 0.50% - 1845 - twin bores
 * Dove Holes Tunnel 1 in 90 - 1.11% - 1865
 * Devonshire Tunnel 1 in 50 - 2.00% - 1874 on other side of summit to Combe Down Tunnel
 * Otford Tunnel 1 in 40 - 2.50% - 1888 - notorious
 * Combe Down Tunnel 1 in 100 - 1.00% ; (1 in 131 average) - 1874 - fume problems
 * Ardglen Tunnel 1 in LVL - 0.00% - at summit - fume problem
 * Swan View Tunnel 1 in 49 - 2.04% - 1896 - asphixation death in 1942.
 * Connaught Tunnel 1 in 105 - 0.95% - 1916 - double track - ventilation problems


 * Cascade Tunnel #1
 * Cascade Tunnel #2 1 in 65 (1.54%)


 * Bank Engine
 * Siding

Table2
The lines approaching the first Cascade tunnel had a ruling gradient of 2.2% (1 in 45.5), while the tunnel itself had a gradient of 1.7% (1 in 58.8) facing eastbound trains. Tunnels are single unless stated otherwise.


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 * Eritrea