# Thread: Weight of Shuttlecock

1. ## Weight of Shuttlecock

Hi,

I was looking for the actual weight of a shuttlecock, but found two different values for it. On www.shuttlecocks.com, the weight was given as 48-52 metric wt, which I take to mean 48-52 grams. On a page from www.badmintonalley.com, the average weight of a shuttlecock was said to be 5.0 g.

Now 5.0 g happens to the weight of a piece of letter-sized paper, so I held them with my right hand, and the shuttlecock felt heavier. But of course I won't be able to tell whether the shuttlecock is 10 times heavier than the piece of paper.

Anyone with an electronic balance handy?

2. I need this information for a little project of mine. Just to whet your appetite a little...

3. feather shuttle weighs 4.7 to 5.2 g, depending on speed rating of the shuttle.
I think 4.8 -4.9 g are most commonly used.

4. I dont think the shuttles would weigh 50 grams. It is definitley 4.8-5.2 grams.

5. ## Spring Constant of Cork Base

Originally Posted by jamesd20
I dont think the shuttles would weigh 50 grams. It is definitley 4.8-5.2 grams.
Can I tag on another request then? To figure t0 = (m/k)^0.5, which sets the time scale for a shuttlecock to rebound off the stringbed of a badminton racket, I also need the effective spring constant of the cork base of the shuttlecock.

My own crude experiment gives me k = 1 x 10^4 N/m, for a 1 mm depression when I squeeze it with about 10 N force. This value disagrees with a crude calculation done starting from the Young modulus of cork by a factor of 100 (i.e. my experiment value for k is too small, compared to crude theory).

Anyone able to do a more refined measurement of k?

6. 50 gram shuttle will be like a bullet when you do the smash

7. Either that or the shaft of your racket would snap

8. 50 grams is almost a tennis ball's weight

9. Take a look at this page, it gives good information about shuttles
http://64.233.183.104/search?q=cache...&client=safari

10. Originally Posted by jamesd20
I dont think the shuttles would weigh 50 grams. It is definitley 4.8-5.2 grams.
not in grams...4.8-5.2 oz (136-141grams)

11. Originally Posted by 100plus
not in grams...4.8-5.2 oz (136-141grams)
my G-shock watch weighs roughly around 130 grams. that means the shuttle is heavier?? then i must be breaking rackets like toothpicks!!

12. I was wondering the same thing

13. "2.2.6 The shuttle shall weigh from 4.74 to 5.50 grams."

14. Thank you.

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