[cockerpunk]

data - http://spreadsheets.google.com/pub?key=pym...HdSUQeK_RW9lsUA

video - http://www.youtube.c...h?v=lK_uuC53GII

discuss!

[murk_da_mask]

ses the video is unavaliable

[Ced23Ric]

The video link doesn't work, I can't discuss apart from: I don't care about 5fps. Why? Because 5fps seems like nothing and just logic. Water particles in the air provide more friction than the other molecules.

[cockerpunk]

the video is processing. due to all the cross linking i have to post the thread so that when the video is done processing, it has a link to our thread about it.

[Leafy]

the vid is up now. and holy barrel steam batman.

[Ced23Ric]

New addition to the discussion: Your bathroom looks small but nice.

[CrazyLittle]

Okay that was entertaining to say the least.

[Jo Tesla Roy]

Results wise, I think that the Bps would affect the results because of lower barrel temp / more barrel condensation or maybe the other way around, condensation not building up fast enuf to affect result.

[cockerpunk]

Jo Tesla Roy, on Apr 7 2009, 12:45 PM, said:

Results wise, I think that the Bps would affect the results because of lower barrel temp / more barrel condensation or maybe the other way around, condensation not building up fast enuf to affect result.

indeed, but shooting will clear out the condensed water, so the faster you shoot, the dryer the barrel is going to be.

in this test we are essentially threshold testing, we are looking to see where the threshold of large feedback is going to be. we are asking, how bad does it have to be for the factor to have an effect, and the answer is, the humidity needs to worse then my bathroom to have an effect on the chrono speed. and if we know the threshold is not reached under extreme conditions, then under normal conditions we know there isn't much to worry about.

[Spitlebug]

Mmmmm Gordon all hot and sweaty.

Just kidding. Good results. I think it's probable to say that relative humidity doesn't affect velocity too much with HPA.

[Jo Tesla Roy]

My experience with extreme humidity was at around 10*c 99% humidity, I would shoot a burst of 5-10 balls fast, wait a few seconds and the next ball I shot would shread itself all over the place. I was thinking that the condensation had time to freese inside my barrel and when the ball came out it would rubb against these frosen shards.

That day everyone on the field was complaining about ball chop.

[Lord Odin]

cockerpunk, on Apr 7 2009, 02:15 PM, said:

Jo Tesla Roy, on Apr 7 2009, 12:45 PM, said:

Results wise, I think that the Bps would affect the results because of lower barrel temp / more barrel condensation or maybe the other way around, condensation not building up fast enuf to affect result.

indeed, but shooting will clear out the condensed water, so the faster you shoot, the dryer the barrel is going to be.

in this test we are essentially threshold testing, we are looking to see where the threshold of large feedback is going to be. we are asking, how bad does it have to be for the factor to have an effect, and the answer is, the humidity needs to worse then my bathroom to have an effect on the chrono speed. and if we know the threshold is not reached under extreme conditions, then under normal conditions we know there isn't much to worry about.

Do we know for certain that shooting the gun doesn't ADD barrel condensation? I was always under the preconception that it did because of lowering the barrel temp to/below the dew point.

[cockerpunk]

Lord Odin, on Apr 7 2009, 05:17 PM, said:

cockerpunk, on Apr 7 2009, 02:15 PM, said:

Jo Tesla Roy, on Apr 7 2009, 12:45 PM, said:

Results wise, I think that the Bps would affect the results because of lower barrel temp / more barrel condensation or maybe the other way around, condensation not building up fast enuf to affect result.

indeed, but shooting will clear out the condensed water, so the faster you shoot, the dryer the barrel is going to be.

in this test we are essentially threshold testing, we are looking to see where the threshold of large feedback is going to be. we are asking, how bad does it have to be for the factor to have an effect, and the answer is, the humidity needs to worse then my bathroom to have an effect on the chrono speed. and if we know the threshold is not reached under extreme conditions, then under normal conditions we know there isn't much to worry about.

Do we know for certain that shooting the gun doesn't ADD barrel condensation? I was always under the preconception that it did because of lowering the barrel temp to/below the dew point.

yeah it does.

but for condensation to form it need time, and at 10 BPS or more, the paintballs are clearing the thing out faster then it can form. hell, it takes at least 30 seconds even under those conditions i was testing to get condensation on cool metal. in 30 seconds, you could have shot the gun 300 times ...

again, what we are looking at is a threshold in testing like this. we make the conditions are horrible as possible, and see what happens. if nothing happens, then we know that under normal conditions we dont need to worry about these kind of things. this means that even under the worse conditions, we dont have an issue, we know the threshold where these things do come into play is far beyond anything we see under normal conditions.

so if after a couple of minutes in that humidity, the condensation on that barrel is by far worse then any you should ever see on the paintball field. and if that barrel doesn't have more friction, then we know that its not an issue.

[D.K.]

Maybe the moisture in the air causes a semi-slippery surface therefore creating less friction for the ball to move threw the barrel.

Did you take notes on the accuracy?

This post has been edited by D.K.: 07 April 2009 - 07:05 PM

[Spitlebug]

D.K., on Apr 7 2009, 05:02 PM, said:

Did you take notes on the accuracy?

In the bathroom? Not likely.

Here's what I am taking from this test:

Under extreme humidity, high temperature and using HPA there isn't enough discernable velocity loss to worry about. This doesn't take into account the effects of prolonged exposure to paint by humidity and temperature. Nor does it address the issue of accuracy. In short, the test is what it is and was really only designed to showcase the effects of extreme humidity and temperature on the recorded velocity of fired paintballs.

[cockerpunk]

indeed, the test was only setup to test for friction.

[Snipez4664]

do you have an idea of what the paint is like under these conditions? My supposition is that the humidity saturates the polymer shell, causing the CoF increase. (read: barrel condensation probably not as significant as shell condition)

[justis]

I never did think that the humid barrel would make much of any difference in the shooting... I always figured if things went sour on a humid day it was the paintballs being affected not the components of the marker.

[Spitlebug]

Snipez4664, on Apr 8 2009, 08:41 AM, said:

do you have an idea of what the paint is like under these conditions? My supposition is that the humidity saturates the polymer shell, causing the CoF increase. (read: barrel condensation probably not as significant as shell condition)

Yes this is my supposition as well.

[up-chuck mcduck]

do you think a tighter bore like a 683 with that much condensation would cause more barrel breaks because te dew could cause unequal pressure breaking it or would the ball just be like a squggie