Just out of curiosity, is there a rule against dimpling a disc to reduce drag, and if not, has this ever been employed to any success?

i dont' know what you mean by that? you'll have to explain in greater detail or supply a picture or sketch or something.

-Scott Lewis

If you mean what I think you mean, then it has been done,. I don't know with how much success, and the disc I know of that did it was (I think) not approved for PDGA play (too stiff??). However I think the Excelerator contours on the new Ching discs, despite appearing to be thumb holes, may actually be meant to accomplish the same thing.

The Grateful Dude was a dimpled disc made by Destiny or Dynamic. I think there was a dimpled Bullet too, not legal.

I guess that would depend on how you plan on dimpling a disc. We were discussing removing warps on another board. I found out that what I was doing, pouring hot water in an upside down disc laying on a counter, was considered a no-no and renders the disc non-PDGA approved. Any use of a non natural heat source is no good. I believe any excessive sanding or grinding in order to change the flight characteristics is covered under this rule too. If you just want to take an old disc and horse around with some ideas for non PDGA play, go for it.

The Grateful Dude was a dimpled disc made by Destiny or Dynamic. I think there was a dimpled Bullet too, not legal.



Wasn't the Bullet, it was Called the CDS. Circular displacement system. Similar to the dimple disc except the dimples were only on the outer 2 inches of the disc. Hard like the dimple disc and not PDGA approved.

It was larger diameter disc21,3cm, it was actually called the Dimple" take a look here, came in two different types of dimples as far as we know:
Dimple :
http://www.discgolfsweden.se/discar/discar_sokdisc.aspx?DiscId=1623
Dimple CDS:
http://www.discgolfsweden.se/discar/discar_sokdisc.aspx?DiscId=1624
Soft Dimple:
http://www.discgolfsweden.se/discar/discar_sokdisc.aspx?DiscId=2224

if you look at a golf ball you will notice a large number of depressions on the surface, these are referred to as dimples. There purpose is to reduce air drag by presenting less surface area for friction. thats what i mean by "dimples"
I was just wondering whether or not this legal under PDGA saction, especially with todays "projectile" style discs.

Think Flick with half the drag. Wow

That's what we answered. Those disc's had dimples on the top of the flight plate.