ATTENTION: The calculator originally contained an error. I had erroneously equated 90° and π/4 radians instead of π/2 radians. This understated the angular power by a factor of four and made it appear that adding weight to the butt-end of a paddle could reduce the power required to flip it. Correcting the error eliminated that phenomenon. The results of this calculation seem much less interesting, but I’m leaving it up for now.
A Hand Speed Index (HSI) calculator for pickleball paddles. For more information, see the blog post Hand Speed Index for Pickleball Paddles.
There is also a new version of the Briffidi Paddle Matching spreadsheet with HSI. You can use the spreadsheet to predict the results of adding mass at different locations. To edit the spreadsheet, you must make your own copy with [File->Make a copy]. There are comments in several cells that offer explanations. By default, the “0 cm in 100 ms” motion is used, but you can edit those values on the Constants tab. Note that the distance and duration are halved, so for the “40 cm in 154 ms” motion, enter 20 cm and 0.077 s.
