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How many Lamberts make a Plummer?

10/2/2021

4 Comments

 
It is useful to know how fast or slow a lawn is.  For major competitions, it is vital.  As we all know, speed affects your shot, and may affect your choice of tactics.  But how do you measure speed?

The traditional method was to time very precisely a ball struck from the South boundary to North.  The time in seconds is the 'Plummer' rating, where 1 second = 1 Plummer.  Tricky -- far trickier than any of our coaching tests!   

Michael Bowker has come to the rescue by making a 'Lambertometer' after discussion with Duncan and Richard.
The Lambertometer is a simple device for measuring the speed of a croquet lawn.  In essence it is a 4 foot ramp raised 1 foot,  down which a croquet ball is run.  The distance the ball runs gives a measure of lawn speed.  So, for example if the ball rolled 16 feet, this would be a lawn speed of Plummer 12.  

Thank you, Michael, for yet another helpful practical contribution to the club!

​Richard Peperell  
Picture
4 Comments
Alan Clark
14/2/2021 11:51:07 am

Well done Michael, I like the precision of your, has to be saids, stylish lambertometer. Now you can wait for the croquet world to beat a path to your door. Only concern is why you just made a south to north one. Shouldn't you make a matching one that goes from north to south?

Reply
Michael Bowker
14/2/2021 11:22:06 pm

A Lambertometer pivots around a skewer close to its foot so that readings may be taken in several directions. Please provide your own compass if a specific direction is required.

Reply
Geoffrey John Brook
15/2/2021 12:25:02 pm

So simple. However, why not put a spring loaded plunger at the top end so we could play a form of bagatelle as well as croquet,using the sprinkler head sockets as aiming points?

Reply
Roger Bowman
15/11/2022 02:44:53 pm

An elegant device. Perhaps it could be used to measure lawn trueness, after incorporation of a laser pointer?

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  • Home
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