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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: bob whitney on February 29, 2024, 10:38:55 AM
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in 80/20 jet fuel what is 80 and what is 20 is it 80 meth and 20 nitro???
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yes
in 80/20 jet fuel what is 80 and what is 20 is it 80 meth and 20 nitro???
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C'mon, Bob, it's in the Rule Book! CL Speed, paragraph 7. n~
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With fuel cost going up and jet fuel being 20% nitro and each run using 8+ oz for Sport Jet why not go back to simple Coleman fuel (white gas)? If everyone is using the same fuel supplied by the contest all is on a level field and easy to get. Just a fun event to make some noise and fly some cool speed ships, makes sense.
Best, DennisT
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Not to me. It's not like "we" fly a hundred flights away from a contest environment. Cost of "jet fuel" is the least of my concerns.
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The jet flyers back at Rouge Park in Detroit just used gasoline. At the time $.79 per gallon, now $3.299. But still less than high priced model fuel.
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Let's say nitro from the hot rod shop is $50 per gallon and methanol is $10. That's only $18.00 per gallon for 80/20 jet fuel. That's actually cheaper than a lot of glow fuels on the market today. In the overall scheme of things, jet fliers aren't worried about the cost of fuel.
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why is it that flyers that don't even fly the event are always ready to make it better?
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Wise beyond your years!
why is it that flyers that don't even fly the event are always ready to make it better?
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Deleted.
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Flying Jets are a big hoot...
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Is gas harder to use? Which fuel makes the least noise and is it a big difference?
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Is gas harder to use? Which fuel makes the least noise and is it a big difference?
Not really. A pulse jet will run just about anything that will burn. The biggest trouble is figuring out the correct fuel air ratio. That's an assumption based upon the tube and valve geometry will "ring" properly. All the fuels will make a bucket ton of noise. That's the whole point... Running jets is a manly kind of thing involving fire, noise and danger.
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As Mark said, a pulse jet will run on almost anything..... just need the correct metering jet to make it do so. Automotive gasoline will work, but has an extremely limited combustion range. There is no such thing as "white gas" anymore. The competition fuel formula of 80/20 alky/nitro works pretty well and has a much wider combustion range.