Rules
Locomotives that were entered were to be subjected to a variety of tests and conditions. These were amended at various points, but were eventually nailed down to:
- "The weight of the Locomotive Engine, with its full complement of water in the boiler, shall be ascertained at the Weighing Machine, by eight o'clock in the morning, and the load assigned to it shall be three times the weight thereof. The water in the boiler shall be cold, and there shall be no fuel in the fireplace. As much fuel shall be weighed, and as much water shall be measured and delivered into the Tender Carriage, as the owner of the Engine may consider sufficient for the supply of the Engine for a journey of thirty-five miles. The fire in the boiler shall then be lighted, and the quantity of fuel consumed for getting up the steam shall be determined, and the time noted.
- "The Tender Carriage, with the fuel and water, shall be considered to be, and taken as a part of the load assigned to the Engine.
- "Those engines which carry their own fuel and water, shall be allowed a proportionate deduction from their load, according to the weight of the Engine.
- "The Engine, with the carriages attached to it, shall be run by hand up to the Starting Post, and as soon as the steam is got up to fifty pounds per square inch (3.4 bar), the engine shall set out upon its journey.
- "The distance the Engine shall perform each trip shall be one mile and three quarters (2.8 km) each way, including one-eighth of a mile (200 m) at each end for getting up the speed and for stopping the train; by this means the Engine, with its load, will travel one and a-half mile (2.4 km) each way at full speed.
- "The Engines shall make ten trips, which will be equal to a journey of 35 miles (56 km); thirty miles whereof shall be performed at full speed, and the average rate of travelling shall not be less than ten miles per hour (16 km/h). (Note: The only other passenger railway in the world at that time, the Stockton and Darlington Railway, had an average speed of only about 8 miles per hour (13 km/h).)
- "As soon as the Engine has performed this task, (which will be equal to the travelling from Liverpool to Manchester,) there shall be a fresh supply of fuel and water delivered to her; and, as soon as she can be got ready to set out again, she shall go up to the Starting Post, and make ten trips more, which will be equal to the journey from Manchester back again to Liverpool.
- "The time of performing every trip shall be accurately noted, as well as the time occupied in getting ready to set out on the second journey.
Read more about this topic: Rainhill Trials
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—John Locke (1632–1704)
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—George Orwell (1903–1950)