Kerosene is sort of like JP1 with a 100 degree or so vapor point- get a bit of hot air on the intake stroke for droplets to vaporize and you can use a spark plug to ignite it- the old heat exchangers, shields on the 1920s --> tractors got temperatures over 100 for intake air- the JD B noted to have 140 degree running intake air temperature. Kero is a specific distilled product with relatively precise standards and procedures from a "pot" still and carries over to the continuous stills.. Distillate comes from the odd bits of "between" grade of the various steps of continuous stills and the old batchs from pot still- instead of the output from the 100 degree step only it takes the odd cups of 85 degree run, the 100 degree run and the 120 degree run plus some of the 140/150 degree runs (JP5) and mixs it together so it "averages" 100 degree and can be sold cheap on market for a particular user -like a power plant in cold area or farm tractor. TVO- tractor Volatising Oil as fuel in UK in 1950s was a sort of duplicate of this fuel- but was a mix of heating oil about 80% with a 5% shot of gasoline base and 10% mix of diesel fuel, 5% other whatever Handy or as blender figured customer needed, proportions varied- keep your heat exchanger on full time, start on gasoline until warmed engine and go plowing. Wasn"t a better fuel than diesel or distillates- but at the time farm use gasoline and diesel were road taxed- no exemption- while "heating oil" was not taxed in UK. Heating oil was about 120 to 140 degree vapor point then- the splash of taxed gasoline helped ignition, the light 110 degree vapor point diesel stabilized the mix and ready burn after a bit of help from the gasoline. Canada BP had a "power fuel/power kerosene/tractor fuel/ in 1950s to 1970s, may still have it that was a 50/50 roughly blend of gasoline base and diesel fuel with a few little splash of whatever. as a "tractor fuel" was not road taxed and the prewar distillate/all fuel tractors were happy with it, the diesels run in cold weather started easier and artic condition diesel engines really needed it. A modern at the time car engine would be knocking some so untaxed fuel users getting robbed of fuel by teenagers with family car could look for kid driving the knocking smokers. A prewar JD B with a mower at a airfield that tests batchs of jet fuel can run on the combined cups of the tested throwaway mixed in gas tank for a long time- and the gasoline for mower tractor bill of $5. to 10.00 a week stays about the same even if the gasoline goes into the mower drivers car or motorcycle and since the grass at side of runway was mowed as usual nobody in management looked closer- so the mower tractor smokes just a little, it is 20 years or so old and paid for, still does its job. Using the 5 gallon fuel can labeled "mower tractor" in your wife"s empty car gas tank when she stalls after dropping you off at work and resulting smoke and knocking is first clue for airport management that something seems different. The old distillate /all Fuel/ Kero tractors run fine on unleaded gasoline with 100:1 2 stroke oil in them, The UK tax law changes about 1980s(?) for less tax for farm use meant more straight diesels used and the TVOs converted to gasoline many times although some of the Fords on Ford board/UK noted to retain the TVO heating controls for winter snow shovel, utility haul the cattle feed and manure in winter use. Canada -Buickanddeere(?)- poster notes gasoline/diesel mix used in forest service equipment, tractors and bus, trucks in winter there yet. Lots of uses for whatever liquid burns cheap - internal combustion engines can be made to run on many things. RN
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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