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I'm working on getting my smoke system done, and with recent light shed on how to make some nozzles on the cheap, thanks to Tony Spicer, I'm finally doing some work with my friend Ray's help. He's good on the lathe and welding, so we made the nozzles a while back, and are now working on getting the base for the nozzles to attach to the exhaust made. Here are some pics...

The nozzles, not yet welded-



The fitting was drilled out to accept the nozzle tube-



Making a bushing-



Base, bushing, and nozzle (without the actual nozzle in place)-



The bushing and base will get welded together, and then threaded to accept the NPT threads on the fitting.

More to come...

I never planned on a smoke system, probably because I've never enn around them. But I'm thinking smoke would be a cool addition.
couple Q's
1. how well does it work with a 4 pipe system?
2. how much oil does it take for a couple minutes of smoke?
3.is there a way to add a simple small portable system? (i'm thinking a self contained unit the size of an O2 cylinder)

1. I would imagine you would just run it off of two pipes, but not 100% on that.

2. 5 gals I'd say. I have a small windshield washer reservoir for mine, and I'm only looking to get 45 seconds or so with it. But I only want to blip for traffic, and the occasion rural runway pass, which takes maybe ten seconds or less.

3. The simplest, ready to go system is Smoking Airplane setup. Nice, but around $800. I have $120 in mine so far, with two more SS braided lines to buy at $25. Rolling your own isn't gonna be the easiest thing to do...actually, my original idea was to use an O2 cylinder, but I couldn't figure a way to mount it in the space I had.

5 gals!!!! ok that's out. Occasional runway pass or 2 is all I'm after. I thought maybe a person could get by with a pint or so.

The smokin' ones have a pump that pumps out at about .8 gal per min. With their smallest tank at about 3.5 gal it will run for about 4.5 minutes straight. I suppose if you change the pump with a lower output you could run longer with a smaller tank?  But won't this affect smoke density (thinner, lighter smoke trail)?

Carlos in Arizona

On 1/14/2011 2:33 PM, RB Lists - The Hangar wrote:

5 gals!!!! ok that's out. Occasional runway pass or 2 is all I'm after. I thought maybe a person could get by with a pint or so.



Brian
Townsend, MT


rivetbangers.com - Discussion topic http://www.rivetbangers.com/forums/viewtopic.php?p=36172#36172

-- Carlos Hernandez <carlosh@sec-engr.com> (carlosh@sec-engr.com) Structural Engineers Company 2963 W. Elliot Rd. - Suite 3 Chandler, AZ 85224 Phone: 480.968.8600 Fax: 480.968.8608 www.sec-engr.com CONFIDENTIALITY NOTICE The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copyingof this email and its attachments, if any, or the information contained herein is prohibited. If you havereceived this email in error, please immediately notify the sender by return email and delete this email from your system.[/code]
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Sure you can. Just because you have 5 gal doesn't mean you have to top it off. Will a pint even fill the hoses from the tank to the nozzles?

Carlos in Arizona

On 1/14/2011 2:33 PM, RB Lists - The Hangar wrote:

5 gals!!!! ok that's out. Occasional runway pass or 2 is all I'm after. I thought maybe a person could get by with a pint or so.



Brian
Townsend, MT


rivetbangers.com - Discussion topic http://www.rivetbangers.com/forums/viewtopic.php?p=36172#36172

-- Carlos Hernandez <carlosh@sec-engr.com> (carlosh@sec-engr.com) Structural Engineers Company 2963 W. Elliot Rd. - Suite 3 Chandler, AZ 85224 Phone: 480.968.8600 Fax: 480.968.8608 www.sec-engr.com CONFIDENTIALITY NOTICE The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copyingof this email and its attachments, if any, or the information contained herein is prohibited. If you havereceived this email in error, please immediately notify the sender by return email and delete this email from your system.[/code]
Submitted via email

hydroguy2 wrote:5 gals!!!! ok that's out. Occasional runway pass or 2 is all I'm after. I thought maybe a person could get by with a pint or so.

That's all I'm doing with mine, so I don't need 5 gals either. I think my tank is one gallon, and will suffice for my needs.

I hope to add smoke someday mostly for traffic...be seen so they can avoid me.

Also should make it easy to regroup when flying lose formation with my buds.

Welding the base together...



Silver soldering the nozzle to the fitting...





Both pieces for each pipe...



We'll clean up the welds a bit, drill and tap the bases, and then it's on to install in the airplane!

Got the bases tapped and the welds all cleaned up...these baby's are ready to install!!