I was reminded today of the days back when we changed gears in our cars without the blessing of a gear-box that was ‘synchromeshed’. The result of changing gear in these vehicles meant one had to be prepared for a great deal of grinding and graunching (*) sounds during gear changes as metal plates found their way into re-emeshing correctly for the next gear - from first to second in acceleration, or for ‘changing down’ in slowing for a junction. The skill was to wait for the moment in which the all the cog-wheels flew into equal revolutions - float shifting - before engaging the next gear. Then the noise and graunching was minimalised. It took a skillful driver to sense and hear the engine, feel the impulsion, 'double clutch' well enough, read the incline up or slope down, in order to manage this successfully. Now we have modern clutches and well synchronised gear-boxes and have to do very little in the way of being present to the changing of gears as we drive. On we go, stereo blaring, car practically driving itself, mind elsewhere….
Friday, 10 June 2016
Change - the smooth way.
I was reminded today of the days back when we changed gears in our cars without the blessing of a gear-box that was ‘synchromeshed’. The result of changing gear in these vehicles meant one had to be prepared for a great deal of grinding and graunching (*) sounds during gear changes as metal plates found their way into re-emeshing correctly for the next gear - from first to second in acceleration, or for ‘changing down’ in slowing for a junction. The skill was to wait for the moment in which the all the cog-wheels flew into equal revolutions - float shifting - before engaging the next gear. Then the noise and graunching was minimalised. It took a skillful driver to sense and hear the engine, feel the impulsion, 'double clutch' well enough, read the incline up or slope down, in order to manage this successfully. Now we have modern clutches and well synchronised gear-boxes and have to do very little in the way of being present to the changing of gears as we drive. On we go, stereo blaring, car practically driving itself, mind elsewhere….
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