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| Re: Boeing jet to break distance record (74189) | |||
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Re: Boeing jet to break distance record |
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Posted by RonInBayside on Thu Nov 10 11:27:35 2005, in response to Re: Boeing jet to break distance record, posted by Olog-hai on Thu Nov 10 11:14:04 2005. Afterburners increase power at a disproportionate increase in fuel consumption. Basically you are spraying fuel directly into the exhaust stream where it lights up from the intense heat.High-bypass engines are more fuel efficient. In fact most of the thrust is generated by the combustion core spinning the big fan and so the airplane acts more like a prop plane than a jet plane. ure turbojets are most efficient at high altitude; high-bypass turbofans are very efficient at mid-to-lower altitudes, where you burn the most fuel (that is, taking off and climbing to your cruise altitude). They are also quite efficient at the cruise altitude. |
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