Chapter 105: The helper and stub tracks
Twenty yards of the helper and stub tracks
A second switcher works the far lead with its own cut. Either engine can move, changing engines is free, and the two have to hand cars to each other through the tracks.
Some tracks hang off another track instead of the ladder. The engine only reaches the back track while the front one is clear up to the switch, and the fouling point is marked.
20 yards, pars from 4 to 13 moves. Beside its theme, chapter 105 draws on the wye, yard orders and no-engine tracks, with two breathers of plain sorting and extra cars. Difficulty runs as a sawtooth: runs of easy yards, a spike, a breather.
The yards
| # | Yard | Par | The job |
|---|---|---|---|
| 1 | Yard 105.1 | 6 | Boston on 1, Albany on 2, Erie on 3, Concord on 4. Watch for a helper on the far lead, a stub behind another track. |
| 2 | Yard 105.2 | 9 | Boston on 1, Erie on 2, Albany on 3, Dover on 4. Watch for a wye off the lead. |
| 3 | Yard 105.3 | 9 | Dover on 1, Concord on 2, Erie on 3, Boston on 4. Watch for a helper on the far lead, a stub behind another track. |
| 4 | Yard 105.4 | 7 | Boston on 1, Albany on 2, Erie on 3, Concord on 4. Watch for yard orders on the clock. |
| 5 | Yard 105.5 | 9 | Boston on 1, Erie on 2, Albany on 3, Concord on 4. Watch for a helper on the far lead, a stub behind another track. |
| 6 | Yard 105.6 | 4 | The outbound Erie, Concord, Concord on Track 1, Albany on 2, Dover on 3, Boston on 4. Watch for a hump yard, a track closed to the engine. |
| 7 | Yard 105.7 | 8 | Boston on 1, Albany on 2, Erie on 3, Concord on 4. Watch for a helper on the far lead, a stub behind another track. |
| 8 | Yard 105.8 | 6 | Albany on 1, Boston on 2, Dover on 3, Concord on 4. Watch for a wye off the lead. |
| 9 | Yard 105.9 | 9 | Erie on 1, Concord on 2, Albany on 3, Boston on 4. Watch for a helper on the far lead, a stub behind another track. |
| 10 | Yard 105.10 | 10 | Albany on 1, Boston on 2, Erie on 3, Dover on 4. |
| 11 | Yard 105.11 | 11 | The outbound Dover, Albany, Albany, Dover, Dover on Track 1, Erie on 2, Concord on 3, Boston on 4. Watch for a helper on the far lead, a stub behind another track. |
| 12 | Yard 105.12 | 5 | The outbound Erie, Concord, Erie on Track 1, Dover on 2, Boston on 3, Albany on 4. Watch for a hump yard, a track closed to the engine. |
| 13 | Yard 105.13 | 13* | Concord on 1, Dover on 2, Albany on 3, Boston on 4. Watch for a helper on the far lead, a wye off the lead, a stub behind another track. |
| 14 | Yard 105.14 | 5 | Erie on 1, Concord on 2, Dover on 3, Albany on 4. |
| 15 | Yard 105.15 | 8 | The outbound Erie, Concord, Concord, Erie, Concord on Track 1, Albany on 2, Dover on 3, Boston on 4. Watch for a helper on the far lead, a stub behind another track. |
| 16 | Yard 105.16 | 8 | The outbound Boston, Boston, Boston, Concord, Concord on Track 1, Dover on 2, Albany on 3, Erie on 4. Watch for yard orders on the clock. |
| 17 | Yard 105.17 | 8 | Albany on 1, Erie on 2, Concord on 3, Dover on 4. Watch for a hump yard, a helper on the far lead, a stub behind another track, a track closed to the engine. |
| 18 | Yard 105.18 | 7 | The outbound Boston, Dover, Dover, Boston on Track 1, Concord on 2, Albany on 3, Erie on 4. Watch for a hump yard, a track closed to the engine. |
| 19 | Yard 105.19 | 6 | The outbound Dover, Dover, Erie, Erie on Track 1, Boston on 2, Concord on 3, Albany on 4. Watch for a helper on the far lead, a stub behind another track. |
| 20 | Yard 105.20 | 12 | Boston on 1, Erie on 2, Albany on 3, Concord on 4. Watch for a helper on the far lead, a wye off the lead, a stub behind another track. |
* A par marked with a star is the best known line for a yard too large to solve outright.
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