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Old Jun 28, 2012, 10:09 PM
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Albuquerque, NM USA
Joined Sep 2003
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I don't have much more info on tankers/sprayers.

I got the powder idea from the guy who did the Top Gun Thrush. He used talcum powder in a "spray bar".

When I was building the littler PBY (44" span) I tried a bunch of liquids. Unless you carry gallons it just won't show up at any distance. Dyes didn't help any. As an example look at garden sprinklers. The little ones that fit on 1/4" hose make a nice spray, but, it is nearly invisible. Even some of the smaller lawn sprayers make a mist that is hard to see. It's not until you get to the bigger stuff that you can see a stream of water.

I did not try making a slurry as I only had a few ounces to work with. That might be the way to go if you can stand carrying a gallon of the stuff.

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