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Old 05-08-2012, 10:00 AM
Wayne's World is offline
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United States, OH, Norwalk
Joined Mar 2008
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I use a seperate battery for smoke pump a123 2300. Figure i already have the extra weight with the smoke fluid and pump, what's another 4-5 oz's for a battery..
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Old 10-13-2016, 11:41 AM
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Help anyone! I have a Sullivan pump and DA-70 stock muffler setup on a PAU as follows: Smoke tank located in tuned muffler cavity at CG, pump located above tank at CG, 1/8" Yellow fuel line from tank, to pump, to check valve, to T, 3/32" neoprene fuel line from T to each muffler. I have the pump on a separate battery and xmtr switch. I need to set pump servo at 100% to get good smoke. My problem....the smoke works fine, but when I shut the pump off (and it does stop running completely), I have light residual smoke trailing for 20-30 seconds. Any suggestions how to eliminate the residual smoke? Is my setup at fault? Thanks all!
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Old 10-13-2016, 11:53 AM
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Pullman, Washington
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I had a slight smoke trail on my planes, especially at mid to low throttle. The smoke oil was being siphoned through the pump gears. I ended up buying a Varsane valve and put it between the pump and the one way valve. It takes an additional Tx channel, but now when I turn off the pump, a servo closes the valve, and no more smoke oil gets past. There are still times when if I shut off the smoke at low throttle I have some burn off (residual oil in the muffler), but if I shut the valve down with some throttle on it stops right away.
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Old 11-01-2016, 11:07 AM
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I'm new to the smoke set ups... but not new in having the pumps.... I've got several pumps and I'm planning on installing the T.M.E. on my ultimate bipe...
I'm learning a lot from this thread.... I know my directions state Not to mount the pump higher than the tank....
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Old 11-01-2016, 01:08 PM
sweetpea is offline
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United States, OH, Lebanon
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Quote:
Originally Posted by Pacerman View Post
Help anyone! I have a Sullivan pump and DA-70 stock muffler setup on a PAU as follows: Smoke tank located in tuned muffler cavity at CG, pump located above tank at CG, 1/8" Yellow fuel line from tank, to pump, to check valve, to T, 3/32" neoprene fuel line from T to each muffler. I have the pump on a separate battery and xmtr switch. I need to set pump servo at 100% to get good smoke. My problem....the smoke works fine, but when I shut the pump off (and it does stop running completely), I have light residual smoke trailing for 20-30 seconds. Any suggestions how to eliminate the residual smoke? Is my setup at fault? Thanks all!
This is simple. Your oil is not getting heated up enough. Thus you run the pump at 100% speed and fill the muffler with oil. Eventually it burns and produces smoke. When you turn the pump off....there is still oil in the muffler (and/or your lines to the muffler). It slowly burns off.

So things I would look at:

1. Length of neoprene from pump to muffler. Make this as short as possible. Use a check valve so the muffler can't draw out of the pump.

2. You didn't mention what kind of mufflers. Are they smoke mufflers with coils inside? Did you just tap it? Does the inlet feed directly to the exhaust pipe or into the can part of the muffler allowing more time to burn? Try bending some preheat coils on the stacks then to the tap. (Note: this will increase your residual though, so its a fine line)
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Old 11-01-2016, 10:31 PM
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here is my setup. to give you an idea..... as to how it looks..
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Old 11-02-2016, 10:10 AM
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If you can't HUCK it BLING IT!
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good length. Also looks like your "nipple" is in a good spot. I'm guessing that it just flows right into the muffler and there is no internal coil. 50-70ccs don't get quite as warm as fast so its not surprising you need more flow. Could be the an issue with the check valve also. I'd swap that out just to rule it out.
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Old 11-02-2016, 10:49 AM
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MY pic..... the one above...
was giving Pacerman
an example ... lol
MY Muffler has Coils... to heat the oil... Mine Smokes VERY WELL....lol
only thing I am thinking... and wondering.. for others... what could be a good
standard on fuel tanks.... 50cc.. maybe be 20oz tank fuel 20oz tank Smoke
or should be Smaller or Bigger . ????
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Old 11-02-2016, 11:05 AM
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If you can't HUCK it BLING IT!
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I normally use the same size tank (or one size smaller) as the fuel tank in my planes.

My only exception is that in my 1/3 WM Clipped Cub the plane came with a 50oz tank. I use a 32oz tank for fuel in it......so I use the 50oz for smoke. WAYYYYY OVER KILL!
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Old 11-02-2016, 03:39 PM
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Thats a whole lot a SMOKE Sweetpea lol
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Old 11-18-2016, 01:22 PM
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United States, MN, Isanti
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Lot's of happy customers over on the engines classifieds using atomizing smoke nozzles. Might just be the new standard. Double your current smoke time per tank. Smoke with your gasser, radial, glow or even your turbine with turbine smoke tubes.
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Last edited by crankcase; 11-18-2016 at 01:30 PM.
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Old 11-18-2016, 02:21 PM
sweetpea is offline
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If you can't HUCK it BLING IT!
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Quote:
Originally Posted by Teammuir1 View Post
Thats a whole lot a SMOKE Sweetpea lol
Yes....Yes it is!
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Old 11-18-2016, 02:34 PM
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Canada, AB, Calgary
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If it helps, I did a video up last year comparing the smoke output of my homebrew smoke oils. Saves a ton of money over buying off the shelf!

Homebrew Smoke Oil Skywriting Test (HD) - YouTube

- Travis
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Old 11-19-2016, 10:28 AM
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70/30 kerosene & baby oil 60cc

P 51 Smoke - YouTube
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