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Von Ohain's first prototype of his HeS 3 turbojet, the HeS 1, burned hydrogen in the first runs. Only after some modifications was he able to make it work with a liquid fuel. https://en.wikipedia.org/wiki/Heinkel_HeS_1


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Yes, indeed the plan to build a hydrogen-powered jet laid the groundwork for using hydrogen in the Centaur rockets and the upper stages of the Saturn 5. While hydrogen was used only experimentally in test rigs, the Soviet Union built a derivative of a regular airliner, the Tupolev 155, for testing hydrogen and natural gas in flight. So yes, the Tu-155 was ...


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For fuels intended for use in aircraft, the key performance parameter is the energy density of the fuel: how much potential work is stored in how many kilograms of stuff. High energy density means the fuel tanks will be small and the energy released upon burning a kilogram of it will be large. The problem with using hydrogen as aircraft fuel is that its ...


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As you can see, the supply chain is big (with filters and water separators at various points). The short answer is that standards and quality checks are followed. As for the jetliners, as far as I know they can't detect the fuel quality, but some can alert if issues arise in the fuel filters. The certification standards focus on engine restart capability ...


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I would recommend that you go to https://skyvector.com/ and create a flight plan. It isn't too difficult, just click on "Flight Plan" in the top left corner and you should be able to figure out the rest. You obviously have some familiarity with ICAO airport identifiers, simply look for airports along the way that will keep you under a 886.7 NM leg length,...


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To answer based on some data I had correlating aircraft in confirmed holding patterns (not speed-restricted en-route delays) vs. high altitude cruise, the short answer was: they use more - mostly because they were in low-speed manouevring, with flaps set. I'd have to look at the data again to remember how much more, but I recall it was fairly significant: at ...


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