Folio 10
Rules
In figures. The keeper on duty has the last word.
Passage
- Boats in a chamber at once
- 1
- Longest boat
- 21.3 m (18.0 m at Locks 3 and 4)
- Widest boat
- 2.13 m
- Deepest draught
- 1.00 m (Locks 3 and 4); 1.05 to 1.15 m elsewhere
- Flight open
- While a keeper is on duty
- Last entry to the flight
- 3 h before the keeper goes off
Speed
- On the pounds
- 4 mph (6.4 km/h)
- Past moored boats
- Tickover, about 2 mph (3.2 km/h)
- Wash at the bank
- None
Paddles
- Gear, Locks 1 to 8
- Ratchet and pawl, windlass 7/8 in square
- Gear, Locks 9 to 11
- Hydraulic, windlass 7/8 in square, about 30 turns
- Side ponds in use
- Locks 2, 5, 8 and 9
- Water saved by a side pond
- About 40% of a lockful
Gates and time
- Gates left on leaving
- Closed, top and bottom
- Longest stay in a chamber
- 20 min
- Longest wait on a lock landing
- 2 h
- Flight chained
- Outside keeper hours