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1912 Brooklands Test

1912 Brooklands Test Hill Record – 6 th June Map Key 4 Woods on the test hill at a deserted Brooklands in 1912 photo Courtesy of Kit Woods Only the best is expected from any mechanical production that bears the great name of Crossley, and the reputation that has been achieved the world over by the famous Manchester firm in the matter of their gas-engines is by no means shamed whenever their motor cars take the field. On Thursday, June 6, Mr. G. Hubert Woods was testing a 20-h.p. Crossley up the Test Hill at Brooklands, and as the car appeared to Major Lloyd, the managing director of the track, to make a very fast ascent, he suggested that Mr. Woods should make an attempt on the record for the hill, which has for a long period stood to the credit of a 65 h.p. six-cylinder Napier. Nothing lost, Mr. Woods at once agreed, and, making the attempt, climbed the steep slope from a standing start, at the astonishing speed of 23.5 miles per hour in 10.2 seconds at the first attempt. This speaks volumes for the wonderful acceleration powers of this car, of which I am sure we shall hear more before the Brooklands racing season is brought to a close this year. The Sketch Wednesday 19 th June `

1912 Hubert Woods taking the Brooklands Test Hill Record from Napier Test Hill history shows the Crossley development and performance was a remarkable: 1909 Kinder’s 20 hp Vauxhall 15.9 mph 15.09 seconds 1910 Napier 60 hp 20.29 mph 11.83 seconds 1911 Woods 20 hp Crossley 19.69 mph 12.20 seconds 1912 Woods 20 hp Crossley 23.52 mph 10.21 seconds 1920 Jones’s 30/98 Vauxhall 24.90 mph 09.64 seconds Period Press Comment: “The excellent and unexpected performance of Mr G.H. Woods in breaking the time record of the Brooklands hill with his 20-h.p. Crossley has been duly, but not unduly, admired. Now it is worthwhile to consider the basis of such a performance. The fact that the record was previously held by a car with a much larger engine suggests this question, what is the power necessary to accelerate and lift this or that car up the hill in a certain time, assuming a certain efficiency for the transmission? Taking the figures in Mr Woods case and assuming a transmission efficiency of 66 per cent, and an average engine speed of 3000 r.p.m., the effort calls for a mean pressure in each of the four 4in. x 5-1/2in. cylinders of over 110lb per square inch. Such pressure is remarkable at any such engine speed, and the engine speed was certainly not less. Indeed, at the start it must have been 4,000 r.p.m. at least. The point of merit lies in the designing of an engine, or treatment of its details, which will admit enough gas to give this unusually high mean effective pressure at such a speed against the efforts of the natural enemy gas inertia.” `

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