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PVC Rocketry???

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 12:16 am

What, a Rocket Propelled renade :?

:D :D :D

sorry :)
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Unread postAuthor: paaiyan » Tue Feb 26, 2008 12:37 am

It could be done. You could even rig it to drop the components needed for ignition so it could fly farther.
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Unread postAuthor: Eddbot » Tue Feb 26, 2008 1:04 am

jackssmirkingrevenge wrote:What, a Rocket Propelled renade :?

:D :D :D

sorry :)


no, more like a Rocket Propelled flying hunk of PVC :) so RPFHPVC... yeah... :D
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 1:20 am

You could create a sort of remote ignition with camera battery, RC radio receiver, ($20 with remote on ebay sometimes.) and an igniter hooked up to it. You would just need to steal the wire from a busted up servo motor to do it. Connect the circuit to the ignitor, and viola' remote ignition.

EDIT: Ahh, that wasn't quite clear. Connect your wire from the servo to the radio reciever, and then connect the ignitor to that.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 1:26 am

Adding radio control would just be an overcomplication, and also runs the risk of premature ignition from an external radio source. It would be easier as previously suggested to have a spring loaded button switch that is held in the "off" position by the barrel, then comes on when the rocket leaves the launcher. You could also have standard slider switch mounted in line with the direction of travel with a weight attached, when the rocket accelerates the inertia of the weight would activate the switch. Since rocket motors never ignite the instant you press the switch, there would be sufficient delay to prevent the rocket igniting in the barrel, even if the circuit was closed at the moment of firing.

One thing you want to make sure is that the rocket is pointing upwards when the motor iginites...
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 1:30 am

I really don't think that radio control is that complicated. LOL, I even made my ballmill remote control in a couple minutes. Seriously. But uhh my model rockets always ignited instantly. :? The weight idea sounds ok, but what about when it is flying? That will destablize it considerably and cause drag.

EDIT: If it was inside the rocket that would make more sense.... But still it does affect performance and stability to have unsecured weight in there.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 1:35 am

Adding R/C equipment would add a lot more weight than a simple switch though ;)
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 1:39 am

Just a bit, its only about 6oz plus the battery, another 7oz.

EDIT: WAIIT a second. 4oz for the receiver, 5 for the battery. I got to thinking, man thats almost a pound!
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Last edited by ammosmoke on Tue Feb 26, 2008 1:41 am, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 1:41 am

My point is you can get away with just using the 1oz battery, so why the extra 6oz.
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 1:42 am

Agh, I wasn't sure how much the battery weighed. I was talking about a 12v AA size battery. The receiver is about the same weight as a AA.

EDIT: An ok, I admit it I am a sucker for RC.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 1:49 am

If you're going to bother with R/C, might as well just hook up a couple of servos to the fins et voila, guided missile :D could get pretty expensive though hehe
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 2:22 am

Hmm. Check this out...

http://www.robotmarketplace.com/product ... ivers.html

and this...

http://www.robotmarketplace.com/product ... _mini.html

Oh yeah and this...

http://www.robotmarketplace.com/product ... G01NJ.html

Woops it got expensive! :D

EDIT: Oh yeah and you would need an RC plane controller then... And possibly mulitple stages.

EDITEDIT: Sorry for hijacking this thread... I'm going to quit now. :roll:
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Last edited by ammosmoke on Tue Feb 26, 2008 2:26 am, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 2:26 am

What I mean was, if you're doing this to your projectile every time, the cost per flight would be prohibitive :P :D
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Unread postAuthor: ammosmoke » Tue Feb 26, 2008 2:28 am

LOL, that is some cool footage there.
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 26, 2008 2:40 am

That's the LOSAT I had mentioned in this thread, anything that can knock the turret off a tank through sheer kinetic energy deserves respect :D

Makes the idea of a rocket/spudgun hybrid seem more appealing, n'est pas?
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