Laver & Wood’s Cricket Bat Lore Ch13. The Coefficient of Restitution and Centre of Percussion – What are these?

Before becoming a bat maker James trained as a Construction Engineer. He has attempted to explain some engineering principles as they apply to cricket bats.

The performance of a cricket bat is dictated by the physical properties of both the bat & ball, where the bat connects with the ball, and the relative velocities of both on impact. The measurement of the result of the collision between the bat and ball is known as the “Coefficient of Restitution”.

The Coefficient of Restitution is a simple relationship between the velocity of a ball just before impact dropped onto a solid surface and the resulting velocity immediately after impact. Measuring the Coefficient of Restitution allows a bat maker to make decisions about a particular cleft based on hard data, rather than intuitive feel.

To find out more about the underlying theory of cricket bat performance please purchase Laver & Wood’s Cricket Bat Lore Volume I from Amazon.

More Laver & Wood Cricket Bat Lore chapter introductions can be found below.

1. Salix alba var. Caerulea

2. Watermark Disease

3. Why English Willow

4. Grading Willow

5. Butterfly Willow

6. Grain Structure & Willow Colour

7. Testing a Cleft

8. Laver & Wood’s Guide to Cricket Bat Handles

9. Laver & Wood’s Handles

10. Handle Breakage

11. Revised Handle Laws

12. Handle Manufacture

13. The Coefficient of Restitution and Centre of Percussion – What are these?

14. The Importance of Pressing Cricket Bat Willow

15. Traditional Bat Making

16. Tools used in Traditional Batmaking I

17. Tools used in Traditional Batmaking II

18. Tools used in Traditional Batmaking III

19. Tools used in Traditional Batmaking IV

20. The Weather & Bat Making

21. Preseason Bat Check

22. Bat Repair and Maintenance

23. Knocking In

24. Oiling Bats

25. Moisture Damage

26. Batting in Wet Conditions

27. Making Bats Last Longer

28. Why Bats Break & How to Protect Them