SpudFiles

First off i know what your all thinking " why in the in the hell do you wand to launch golf balls for " there is a resonable anwser for that


I am going to do a veloicy and vector Experiment for physics class and i want to know if it is a plausable idea or not and if it is what kinds of maritails could i use to do it with


Mike

Ehhh never heard of a golf ball barrel? 1.5" SDR-21 pipe, can even buy some in the classifieds.

BTW you posted this 3 times, I removed the other 2, and please make your avatar smaller. Thanks.

He can't - he's directly linking from the source.
Ahh... it's getting annoying...
<img src="http://img.photobucket.com/albums/v611/ ... avatar.jpg" alt="Image hosted by Photobucket.com">

There, link to that.

i took my golf ball cannon to the range and blasted out the 500 yard marker

If i took off my current 2" barrel and put on a 1.5" SDR21 barrel would the c/b ratio be to much?? and also i was wondering to the golf balls fit perfectly in the SDR21 or do they have to be taped or anything?

it does no tape just drop one down the barrel

it does no tape?

you should sleve the sdr-21 with sch80 2 inch pvc so it is stronger and streighter

A 1.5" sdr 21 barrel will have ~70% of the volume of a 2" sch 40 one. Without knowing your current C:B ratio, though, I can't tell you exactly how it will affect muzzle energy (though I can tell you it will have atleast 70% of the muzzle energy you have now).
You can use EVBEC to figure this out.

The OD of a golfball is 1.68", the ID of 1.5" sdr 21 is 1.70"
No wadding is needed.

my current combustion chamber is 4 inches in diameter you mean im gonna lose power??

Well, that's helpfull... we need VOLUME. Nearly everything in spudding deals with VOLUME! Fricken VOLUME!

Err... excuse me for my outburst... it's 2:34 AM here... and it's a common mistake made by newbies that's been frustrating me...

Yeah... anyway, could we get the length of that chamber, and of your barrel? Just knowing the diameter doesn't do us any good.

Yes, you will most likely lose power unless you make the new barrel 30% longer. (so it'll have the same volume as your old barrel)
I don't know exactly how much, as you didn't specify the volume of your old chamber and barrel.

but thats fucked up 1.5" sdr 21's iner diameter is 1.7 which is bigger than 1.5"

sorry man i guesss i do qualify asa newb lol but umm the chamber is 14" long and 4" in diameter i hope thats what your looking for lol but i cant understand why id lose power if its a smaller barrel

Well, I still can't tell you how much power you'd lose as you still havn't told me the length of your barrel (and yes, I did ask for this in my previous post).

As to the reason it's not as energetic:
Energy = force*distance
With a smaller diameter barrel, force is reduced, and therefore energy is reduced.

my barrel is 3 and a half feet long sorry bout that