Training in theory and practice / by Archibald Maclaren.

Date:
1866
Catalogue details

Licence: Public Domain Mark

Credit: Training in theory and practice / by Archibald Maclaren. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    APPENDIX P. PRACTICAL TEST to ascertain the Actual Force Employed in the Propulsion op an Eight-oar Boat in Racing Trim and at Racing Speed. [I am indebted to the Rev. T. H. T. Hopkins, M.A., Magdalen College, Oxford, for the following results of an experiment made by him with the dynamometer. These results, it will be observed, correspond exactly with those arrived at in the preceding investigation made by Professor Haughton.] An Eight-oared Racing-boat, weighted with sand-bags to represent an 11 st. 4 lbs. crew (the weight for which she was built), and steered by an 8 st. coxswain, was towed over part of the Oxford course, where the water is straight, broad, and deep. The Four-oared Boat by which she was towed was itself towed by men on the bank, and kept in a straight course by a coxswain. The Eight-oar was kept as nearly as possible in a line with the Four-oar by the coxswain placed on board for that purpose. The tow-line from the Four to the Eight-oar was fas- tened to the bow-oar's thwart in the Eight exactly in a line with the keel, and the strain measured by a dyna- mometer (a Salter's spring-balance), interposed between the end of the tow-line and the Four-oar. The distance traversed was .. 560 yards. Time occupied 6 min. 20 sec. Average strain on dynamometer 7 lbs. There was a light side-wind, but not enough to ruflle the water, or seriously interfere with the experiment.