flatline question

[z25robertson]

do the balls that come out the flatline rise? please reply

[Coenen]

Yes.

backspin = lift
lift = well...lifting

[igota98custom]

Originally posted by Coenen
Yes.

backspin = lift
lift = well...lifting


:laugh:

[TheSpy11]

It's a common phenomenon for the balls to rise on the 98's Flatline. Paint doesn't rise on the A-5 Flatline unless the velocity is high.

[ghilliesnipe]

They dont rise out of either flatline as long as the velocity is set correctly. The velocity range where they wont rise is smaller in a 98 flatline than an A5 flatline.

[laxkid90]

Mine go perfectly flat, its almost scary how straight and flat it goes

[Stan the HitMan]

if this occurs it is called a "Helicopter effect" that means that the velocity is to high (or spikes to high) and the backspin is excessive and cause's it to lift, if you have a regulator for better consistency or at lower rof (if set right) this should never happen.

[Meph]

I've also seen H effects from paint being way too small for the Flatline. Medium bore paint is perfect, small can also be problematic.

I remember getting a batch of Polar Ice where the paint was, on average, .682 bore. And even at 260-270 fps the paint was just lifting... and lifting... and lifting. From 100ft away I could shoot at their tummy and gog them! Quite odd I thought.

[Stan the HitMan]

Originally posted by Meph
I've also seen H effects from paint being way too small for the Flatline. Medium bore paint is perfect, small can also be problematic.

I remember getting a batch of Polar Ice where the paint was, on average, .682 bore. And even at 260-270 fps the paint was just lifting... and lifting... and lifting. From 100ft away I could shoot at their tummy and gog them! Quite odd I thought.

Different Bore has a different optimal fps, this is why you were experiencing that, find the paint you are using best fps and you shouldn't have any helicoptering (except the odd misshapen ball or velocity spike)

And the a5 has a larger bore on its flatline than the 98 so it isn't as paint finicky.

[tippmannkidd]

if you have a 98c im selling my flatline. i only used it twice! you can make offers or trade for a 48/3000 nitro or something.

[ColorfulDeath]

Originally posted by laxkid90
Mine go perfectly flat, its almost scary how straight and flat it goes

Ditto

[Meph]

Originally posted by Stan the HitMan


Different Bore has a different optimal fps,


Ummmm no. Any time you need to go 240fps..... you will not have any more range and the balls will always bounce. What the hell would be "optimal" about that?

If it's not going a minimum of 260fps it's not worth it.

[ghilliesnipe]

Originally posted by Meph



Ummmm no. Any time you need to go 240fps..... you will not have any more range and the balls will always bounce. What the hell would be "optimal" about that?

If it's not going a minimum of 260fps it's not worth it.


While Stans statement is correct, I do have to agree with Meph on that.

[Stan the HitMan]

Originally posted by Meph



Ummmm no. Any time you need to go 240fps..... you will not have any more range and the balls will always bounce. What the hell would be "optimal" about that?

If it's not going a minimum of 260fps it's not worth it. you are correct when it comes to almost any barrel but the flatline

the flatline relies on the size of the ball to get a spin coming though the curve that's why different fps = different amount of spin, the best results ar from a small bore paintball with spin from 265-285 fps, to much it will helicopter , to little it will bounce, and larger bore will take a greater fps to get to this amount of backspin, hence different bore for different fps

[Meph]

And as I already said.... too small of paint will create this helicopter effect AT the 270fps mark. Which would then require the lowering of velocity to 240fps in order to get the flat trajectory. HOWEVER at that trajectory there is not enough forward momentum to create any benefit. Since by then it would not only go about same distance as other barrels on the market that aren't backspin related... but the impact of the ball would be drastically reduced causing too many bounces. Thus rendering it basically useless and pissing off the user.

It's not small bore you want, it's Medium bore. That gets the proper amount of spin AND forward velocity combination which people are looking for.

[Stan the HitMan]

Originally posted by Meph
And as I already said.... too small of paint will create this helicopter effect AT the 270fps mark. Which would then require the lowering of velocity to 240fps in order to get the flat trajectory. HOWEVER at that trajectory there is not enough forward momentum to create any benefit. Since by then it would not only go about same distance as other barrels on the market that aren't backspin related... but the impact of the ball would be drastically reduced causing too many bounces. Thus rendering it basically useless and pissing off the user.

It's not small bore you want, it's Medium bore. That gets the proper amount of spin AND forward velocity combination which people are looking for.

I think you are misinterpreting me, what i am saying (cut down) is that larger bore takes a higher fps to get the same backspin and that smaller takes less. Know what i am getting at?

[Coenen]

I think you are misinterpretting him. What he's saying is that you are right, but there is a flaw in your logic. Said flaw is that the FPS must be dropped so significantly for the case in question that the benefits of the Flatline are negated.

I almost said it last night, but didn't. Here it is now. Stan, you're a great guy and all, but Meph just flatout, straight up knows more than you do. If you carry this on for too long you're going to end up looking bad. I don't mean that in a bad way or anything, it's just the truth.

[Stan the HitMan]

Originally posted by Coenen
I think you are misinterpretting him. What he's saying is that you are right, but there is a flaw in your logic. Said flaw is that the FPS must be dropped so significantly for the case in question that the benefits of the Flatline are negated.

I almost said it last night, but didn't. Here it is now. Stan, you're a great guy and all, but Meph just flatout, straight up knows more than you do. If you carry this on for too long you're going to end up looking bad. I don't mean that in a bad way or anything, it's just the truth.

I think i was not understanding him, his last post lost me, i admit i was wrong.

I have just found from trial and error to get the same effect form larger bore balls it requires more fps

[Meph]

Don't worry, misinterpretation happens all the time. I'll put it this way.


To get a flat trajectory without heli effect with medium bore paint
270fps.


To get a flat trajectory without heli effect with really small bore paint
240fps.

[xjnation]

Originally posted by Meph
Don't worry, misinterpretation happens all the time. I'll put it this way.


To get a flat trajectory without heli effect with medium bore paint
270fps.


To get a flat trajectory without heli effect with really small bore paint
240fps.

man you guys have a lot to learn about flatlines.
1) no 2 flatlines will perform the same at the same FPS this is because the pattern of striations on the inside of the barrel are never identical

I currently have 2 flatline A5 barrels one shoots medium bore paint best at 265 fps and the other at 285 fps

one shoots small bore paint best at 260 and the other at 275

2) except for the muzzle break and notch for mounting the 98c and A5 flatlines are identical.

the difference in how they shoot boils down to valve design and the muzzle break of the 98C makes the barrel less consistant. I have cut the muzzle brerak off one and honed the tip it shoots just like the A5 barrels now

[Meph]

Identical..... except of course 4 inches in length between the two.


You missed that by being too cocky I take it? :P


Don't be rude, that doesn't belong in the forums. That belongs in Customer Service Centers.

[Sumguy21]

How the heck do you mesure your fps, anyways?!

This has been a question that drives me insane...

Yeah, ok. I'm sort of a noob =)

[xjnation]

FPS feet per second or velocity is measured with a chrono