RE: Spad + paintball = ???

RE: Spad + paintball = ???
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RE: Spad + paintball = ??? - 4/9/2007 5:24:04 PM

flossandfly

Posts: 22
Joined: 10/19/2006
From: calgary, AB, CANADA
Status: offline

I had people shoot at my Das Plas Stick (DPS) at a fun fly. It handled the paintballs with flying colors. (FLYING COLORS... HAHAHA)

The guys were originally shooting at a mig spad but that one was too fast and not many people were hitting it. Then something messed up on the mig so I volunteered to fly my DPS to show how tough they are. I did slow low passes just in front of the shooters and showed the bottom of my wings to the shooters so they had a bigger target. I flew a couple flights just doing circuits and got hit with a paintball at least once every pass. The plane must have been hit by 50 paintballs. The DPS was very messy when I landed it but there was no serious damage. The plane got hit all over: the tail, wing, fuse, motor mount. When I cleaned it up I found that on the bottom of the wing there was 2 areas where the coro was punctured (but not enough that I had to do anything about it, I still fly it that way).

I flew a lot slower than in the video posted by WD4JKH.

A guy at my club built a cool double barrel anti-aircraft paintball gun. Check it out here http://www.westwindsrc.com/Default.aspx?PageID=84&AID=32

Good luck with your paintball + spad adventure.

flossandfly

(in reply to Flying freak)

Post #: 26

RE: Spad + paintball = ??? - 4/10/2007 12:08:12 AM

batchelc

Posts: 184
Joined: 11/8/2004
From: Wichita , KS, USA
Status: offline

More pressure? Maybe...

You can add all the pressure you want. Every paintball will have the same terminal velocity, and since the force is a function of mass and acceleration. This assumes that the balls are all the same size and weight. Drag is a function of shape, and since all the ones i've seen are round the drag will be a function of velocity.

Of course you could put so much pressure that the ball explodes in the gun.

I wonder how close the guns shoot the balls to terminal velocity...Maybe we should make a myth up and have th Myth busters on TV take this one on. It would be cool to shoot paintballs at airplanes on national tv.

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Post #: 27

RE: Spad + paintball = ??? - 4/10/2007 1:23:14 AM

carmatic1

Posts: 1949
Joined: 1/20/2006
From: kent, UNITED KINGDOM
Status: offline

Spad + paintball = spadball!

i have an idea... how about, you have 2 teams (oooh you see where im going now??)

each team has its own shooters and pilots
the goal is, for the teams to shoot their OWN planes, as well as the opposing teams ....
each succesful hit by your own team counts towards the win, each hit by the opposing team counts towards losing...
a test of piloting skills and aim, and the shooters will have to know the pilots flying style intimately , 'catch' your own team's bullets while dodging the other team's...

that is, if you guys are brave enough to have 2 planes flying in such a tight space together

_____________________________

Hey how did you do that... Practice, man
But thats what they always say! Yeah cuz theyre always right....

(in reply to batchelc)

Post #: 28

RE: Spad + paintball = ??? - 4/10/2007 10:09:54 PM

jester_s1

Posts: 175
Joined: 12/17/2006
From: Fort Worth, TX, USA
Status: offline

You can't go much over around 330 fps without starting to get barrel breaks in the guns. The balls slow down so quickly I can't see how it would benefit you much anyway to crank up the guns.
In the intest of uh, science, I took my Spyder into the garage and shot a spare gutterpipe- no damage at all and that was with it leaning up against the garage door. I think it'd take a lot of paintballs to bring one down.

(in reply to carmatic1)

Post #: 29

RE: Spad + paintball = ??? - 4/11/2007 7:30:34 AM

air-madness

Posts: 140
Joined: 2/27/2007
From: , IN, USA
Status: offline

As I read the posts here on SPAD's I also notice a lot self proclaimed mtyhs about paintball trajectories and such... I shot an instigator upon the cheek bone (unintentionally - the round landed there, not his torso) that was making threats with a rock at a store front. Credit the 'paintball' was a dry solution of O.C. (pepper), which actaully weighs a nominal amount less. The round shattered his his lower eye socket and cheek bone bad enough that he tried to sue the city, myself, and the city attourney.

I have used coro for target shooting (real and paintball) and the stuff makes for really good cut-out targets of a human torso. Here is what you do: get 6mm (or thicker) coro; trace an outline of a person and cut out; caulk the bottom edge of flutes (seal them); stand the cut out upright and fill the flutes with water; now seal the top caulk. This allows a shooter to see from afar that the target is actually being struck by the round by emitting a puff of white mist. Anyway, I have shot various thickneses of coro with my paint marker (used for my park ranger position) and all of it ends up with a hole in it at any distance under 40-50 ft., with credit to the velocity adjustment of course. If you are wondering, I own a Miltec MT-66, .68 cal with a helical feed assembly (200 rounds, Q-Loader), 19 inch riffled/ported barrel. The weapon is capable of shooting a paintball reliably at 480 ft/sec +/- 15 ft/sec; Rubber ball: 640 ft/sec, thge O.C. is right around the same as the paint. Don't try to question the figures, we routinely check and maintian any and all weapons used for duty. Here is a pic: http://i43.photobucket.com/albums/e378/philipbeth/DSCN0643.jpg

< Message edited by air-madness -- 4/11/2007 7:34:25 AM >

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What goes up must come down (sometimes hard), so build a SPAD and save some cash, man.

(in reply to jester_s1)

Post #: 30

RE: Spad + paintball = ??? - 4/11/2007 12:47:10 PM

Clean

Posts: 991
Joined: 4/19/2002
From: Parkville, MO, USA
Status: offline

Man I hate kids and their photoshopping.

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From Somewhere near Parkville, Mo.
William Crane (aka Mr Clean) Rever Brother #168 Time Man of the Year

(in reply to air-madness)

Post #: 31

RE: Spad + paintball = ??? - 4/11/2007 4:31:54 PM

air-madness

Posts: 140
Joined: 2/27/2007
From: , IN, USA
Status: offline

Nope, that is a real picture, and I own it. I did try to put up a picture from "my pictures", but this site, like others, have limitations to the file size. I even tried to re-size it, no luck... so, I resorted to the ever trusted PhotoBucket. If you swing on over to the bbmacinegun forum, you can view it there as well, along with a home made bb machine gun that I made. Tell ya' what, here is my photobucket in its entirety, excluding the already submited M4 A1 paintball gun:

http://i43.photobucket.com/albums/e378/philipbeth/DSCN0644.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0645.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0648.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0651.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0655.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0659.jpg
http://i43.photobucket.com/albums/e378/philipbeth/DSCN0661.jpg

_____________________________

What goes up must come down (sometimes hard), so build a SPAD and save some cash, man.

(in reply to Clean)

Post #: 32

RE: Spad + paintball = ??? - 4/11/2007 5:11:26 PM

Clean

Posts: 991
Joined: 4/19/2002
From: Parkville, MO, USA
Status: offline

Okay okay, so you take my manhood and make me stand over in the corner. Doesn't mean I have to like it.

In defense of my comments, my Walmart, gas cartridge powered killer didn't put a paintball through the coro, even standing up close to it.

< Message edited by Clean -- 4/11/2007 5:12:00 PM >

_____________________________

From Somewhere near Parkville, Mo.
William Crane (aka Mr Clean) Rever Brother #168 Time Man of the Year

(in reply to air-madness)

Post #: 33

RE: Spad + paintball = ??? - 4/11/2007 7:25:22 PM

air-madness

Posts: 140
Joined: 2/27/2007
From: , IN, USA
Status: offline

Take the valve out of your marker and port and polish it with a dremel tool. Also, the bolt plays a big factor in the relese of gas on the projectile. A delrin (plastic type material) bolt ads to performance as well. I'm not sure what type of marker you have, a kingman perhaps, if so, the bolt is most likely already delrin. The barrel can play a big factor too. Get a longer one.

What tends to burst the paintballs is actually the concentrated area of force area applied to the paintball (i.e. gas release area). Some markers only have a release opening a 1/4 inch (.25 cal) - this is way to small considering the paintball is 2/3 of an inch (.68 cal) in surface area. If the total volume of gas output is spread over a bigger surface area, the pressure can be more reliably turned up, and the projectile will have a better trajectory. Imagine a cased bullet. The overall casing where the round is fastened is the same size as the round itself (of course, in reference to inside and outside deminsions). This allows for all the potential enegy to be converted into real enery and then into kenetic energy with very little power loss; gravity (the downward force), mass (the area it covers in space), and, resistnce (literal sense, friction) are the only contributing factors that slow this process.

See, Co2 can only reach a max psi in correlation to its container. HPA (high pressure air) can be more condenced in the same volume than Co2= more pressure, or p.s.i. Better yet, nitrous and helium can exceed HPA. This all has to do with atmospheres and the size of the particles in the gas. I use nitrous, my department has it for free, along with HPA.

No harm no foul. Did you like the bb gun pics?

_____________________________

What goes up must come down (sometimes hard), so build a SPAD and save some cash, man.

(in reply to Clean)

Post #: 34

RE: Spad + paintball = ??? - 4/11/2007 9:09:21 PM

MrGreenSpeed

Posts: 628
Joined: 12/31/2002
From: Lakewood, NY, USA
Status: offline

quote:

I shot an instigator upon the cheek bone (unintentionally - the round landed there, not his torso) that was making threats with a rock at a store front.

Make My Day........

......I'll bet that hurt

......to bad for the bad guy

Awesome looking PBgun
Jeff

(in reply to air-madness)

Post #: 35

RE: Spad + paintball = ??? - 4/12/2007 1:02:55 AM

Clean

Posts: 991
Joined: 4/19/2002
From: Parkville, MO, USA
Status: offline

The gun is pretty slick, as far as mine, somehow the plastic case on it is empty. This after I found my supply of paintballs was remarkably less than I thought it should be. But my son is 4 or 5 years older now and I have no idea when it was broken, and I'd have to drive 4 hours to college to yell at him, so I'll let it go. Have to buy a new one if we want to try this again, but again, my purchase will be cheap.

Wonder if we should try something like that at SPADfest? I put the bomb drop mechanism on my DPS last night, and the nifty bomb stabilizer Globe had down at SOT. Dangit, I forgot to get some more styrofoam cups to make bombs with.

There's a paintball you've probably never dropped before. Two 5 ounce foam cups hotglued together making them watertight. cut the bottom out of one and give it a good squirt of temper paint, probably 1/4 cup. Now fill it the rest of the way with water and glue another cup bottom to bottom on top to seal the cups. Drop that sucker from 100 feet and make dang sure there isn't anything under you. I gotta admit, when I did this I really wasn't thinking 10 ounces of mass hitting at over 70 mph. They hit hard. Normally I just fill the front cup with flour and glue a small piece of paper over that to hold the foam there, then build the rest of the bomb for a nice floury poof when it hits.

_____________________________

From Somewhere near Parkville, Mo.
William Crane (aka Mr Clean) Rever Brother #168 Time Man of the Year

(in reply to MrGreenSpeed)

Post #: 36

RE: Spad + paintball = ??? - 4/12/2007 2:30:05 AM

WD4JKH

Posts: 27
Joined: 3/30/2004
From: Forsyth, GA, USA
Status: offline

If you want a challenge, try 'spad bowling'. We found a foam ball that was about 6" or so in diameter and tied it to the back of a spad with a 5 or 6 foot string. We set up 2 liter plastic drink bottles (with just a tad of water inside to keep the wind from blowing them over) then tried to knock them down with a low and slow pass. It's a lot harder than it sounds since the ball is swinging up and down, left and right. Sometimes the ball bounces on the ground, sometimes the plane does. Our best pilot was the only one ever to make a "strike". Mine didn't count since I knocked them over with the plane...

I'm sure we were not the first to come up with the idea, but it was fun. Just seeing the plane fly around with this ball swinging around behind it was a hoot. As you should know, stunts like this should be done with the safety of people and property in mind since you are flying just above stall with an unstable plane. It has the potential to get away from you quickly..

David

(in reply to Clean)

Post #: 37

RE: Spad + paintball = ??? - 4/12/2007 4:07:20 AM

ChrisSpad

Posts: 1525
Joined: 4/19/2002
From: Cordova, TN,
Status: offline

try fuel jug bowling sometime. Just take 3 fuel jugs, and stack them on the runway, and try to knock them over. Its alot harder than it looks. We used to do it regularly at our field. If its windy, put about 1/2" of water in the jugs. We always did it with 25 sized combat planes - no landing gear. Spads are tough.

If you miss, just pick it up, and restart it, and give it a toss and go again. Loads of fun.

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No matter how many planes i plant, they just won't grow.
[link]http://www.chrisspad.com/planes/[/link]

(in reply to WD4JKH)

Post #: 38

RE: Spad + paintball = ??? - 4/12/2007 11:55:07 AM