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Black exhaust smoke

Old 06-08-2004, 09:16 AM
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rpmtech
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Default Black exhaust smoke

All our vintage jets are missing is that light black{or heavy depending on the plane} exhaust trail. Wouldent that be the *****?
Imagine like an F-4 or F-86 or Mig-15 with that

When I watched the vid of the big B-52 that was all that was missing and made me think of how it could be done, any ideas?
Old 06-08-2004, 10:39 AM
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Default RE: Black exhaust smoke

make a carbon trail and mess up everones lungs???
Old 06-08-2004, 05:41 PM
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unknown
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Default RE: Black exhaust smoke

Instead of 5 to 1 oil mix put 2 to 1 oil mix. that should do the trick . Or restrict the inlet air so the engine burn rich.
Old 06-08-2004, 07:23 PM
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rpmtech
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Default RE: Black exhaust smoke



I got the idea playing Microsoft Combat flight sim 3, the jets look cool with the exhaust trail[8D]. I'm wondering if there is any type relatively safe and cheap liquid that would make a light black smoke to be used in place of standard smoke oil.

Just food for thought.
Old 06-08-2004, 07:37 PM
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scubyfan
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Default RE: Black exhaust smoke

Why not just use the smoke oil? That is, inject it aft of the turbines in the traditional method. That way, it can also be controlled at will. For someone spending thousands on a jet kit and engine, it would see justified, especially for scale fanatics.
Old 06-08-2004, 07:45 PM
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J. Campbell
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Default RE: Black exhaust smoke

because the smoke oil is white. He want Black, would be NEAT if someone could figure out how to turn the smoke oils color to black. Maybe Dissolve a bunch of charcoal in it.
Old 06-08-2004, 11:38 PM
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scubyfan
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Default RE: Black exhaust smoke

I thought you could get it in a variety of colors. [sm=drowning.gif]
Old 06-09-2004, 10:13 AM
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Default RE: Black exhaust smoke

I had asked this question about an yr ago and nobody was sure on how to make darker colour smoke. I'm starting an C-130 132" ws and would also like to simulate turbo-prop smoke trails. If it's feasible. without adding to much weight.

Grinder.
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Old 06-09-2004, 10:15 AM
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grinder-RCU
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Default RE: Black exhaust smoke

http://www.mdw-aviation.com/
Old 06-09-2004, 10:24 AM
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Default RE: Black exhaust smoke

ORIGINAL: grinder-RCU

http://www.mdw-aviation.com/


all your going to get is white
Old 06-09-2004, 11:35 AM
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Default RE: Black exhaust smoke

I have heard that you can make it any color by adding food coloring to it, I have not tried it, but then you have to pay for everyone's cleaning bill???? Any one want to try it??

Turbulence
Old 06-09-2004, 04:47 PM
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J. Campbell
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Default RE: Black exhaust smoke

can you get Black food coloring in the 1 to 5 gallon size? Wonder if Kroger carries that? [&:]
Old 06-09-2004, 04:57 PM
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Default RE: Black exhaust smoke

You add the food coloring to the Smoke oil, but then again if you where using such equipment you would know that already

Turbulence


ORIGINAL: jrc316

can you get Black food coloring in the 1 to 5 gallon size? Wonder if Kroger carries that? [&:]
Old 06-09-2004, 05:16 PM
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rpmtech
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Default RE: Black exhaust smoke

I cant imagine food coloring doing anything but changing the color of the liquid, but I could be wrong.

Thanks for the input guys.
Old 06-09-2004, 05:21 PM
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rpmtech
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Default RE: Black exhaust smoke

This is from the MDW smoke oil site:


On Color Smoke
Sorry, you'll just have to be satisfied with the best white smoke available from MDW.

Many have asked us for color smoke. Indeed, some entrepeneurs (a.k.a., con men) have over the past years gone to market to sell color smoke oil, even bragging about the various colors available.

Get real.

With the internal combustion engine exhaust, into which you inject our oil, you will always get white smoke. Those who sell you color smoke oil are pulling a fast one on you. You may see a color in the oil, but when injected into the exhaust stream, you will get white smoke. You may end up with your plane or body stained by the oil, but you won't see color smoke. Buyer beware!

Smoke "bombs", on the other hand, may produce color other than white. These devices are available from selected hobby distributors but are not of the same family.



Maybe it really cant be done very easily[]
Old 06-09-2004, 05:45 PM
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Default RE: Black exhaust smoke

ORIGINAL: Turbulence

I have heard that you can make it any color by adding food coloring to it, I have not tried it, but then you have to pay for everyone's cleaning bill???? Any one want to try it??

Turbulence
nope, you can change the liquid color but not the smoke
Old 06-09-2004, 07:02 PM
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JetflyerJ
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Default RE: Black exhaust smoke

If you want Black smoke Just get Used Tranny Oil and you'll get it. The problem with the used Transmission Oil is that the pump will only run three to four flights Max, No matter what pump you use, I tried them all with the exception of the AMT Pump.


Best regards........... Johnny Hernandez
Old 06-09-2004, 08:11 PM
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J. Campbell
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Default RE: Black exhaust smoke

I KNOW you add food coloring to the smoke oil DUH! You would have to add a lot though and have a lot on hand is what i was getting at.
Old 06-09-2004, 08:32 PM
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Default RE: Black exhaust smoke

ORIGINAL: jrc316

I KNOW you add food coloring to the smoke oil DUH! You would have to add a lot though and have a lot on hand is what i was getting at.

I can pretty much guarantee that it does not matter how much color you add to the oil, it is still going to burn white.

The only way it will keep the color is to dump straight liquid out the plane without burning it.
Old 06-09-2004, 08:48 PM
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Default RE: Black exhaust smoke

i would agree, We went through this thread on the rc-jets forum in 99 when the ram 750 came out. No One ever figured out how to do it then either if im not mistaken.
Old 06-09-2004, 08:59 PM
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Default RE: Black exhaust smoke

Just a thought; plastics give off a black smoke when it is burning, if there were a way to liquify styrene or inject powdered plastics into the exhaust it may work?
Gary
Old 06-09-2004, 09:39 PM
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Default RE: Black exhaust smoke

that would be a pretty toxic cloud though that it left behind.
Old 06-09-2004, 09:54 PM
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Default RE: Black exhaust smoke

You think that's toxic, sniff an erupting volcano!!
Gary
Old 06-09-2004, 10:20 PM
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Default RE: Black exhaust smoke

Since the trace of black smoke coming from the exhaust of older jet engines is from inefficient burning of the fuel, couldn't we simulate this slight smoke trail by injecting the exhaust of our turbines with jet-A instead of smoke oil? That could possibly simulate inefficient fuel burn and give off the desired trace of black smoke. If it works, an added benefit is that it would be less expensive than smoke oil.

Bob Edison
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Old 06-09-2004, 10:58 PM
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Default RE: Black exhaust smoke

ORIGINAL: rpmtech
This is from the MDW smoke oil site:


On Color Smoke
Sorry, you'll just have to be satisfied with the best white smoke available from MDW.

Many have asked us for color smoke. Indeed, some entrepeneurs (a.k.a., con men) have over the past years gone to market to sell color smoke oil, even bragging about the various colors available.

Get real.
What about real-sized jets that use red, blue, and other colors? What method do they use? Would it be so difficult to scale it down?

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