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Help needed understanding turbojets
rec.aviation.homebuilt
Help needed understanding turbojets Horsepower is defined/measured as 550 foot pounds per second. ie, lifting 1 pound 550 feet every second is 1 hp. If you lift 550 pounds one foot every second and keep that going for 12 hours or so every day, you are a horse. Similarly, an airplane with a one horsepower engine that travels at 550 feet per second at full power is pushing with the force of one pound. Conversally, as above, if the plane's max speed is 1 foot per second the thrust is 550 pounds. Handy for gauging such questions as mentioned. Hul |
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Help needed understanding turbojets
Hul Tytus wrote:
...If you lift 550 pounds one foot every second and keep that going for 12 hours or so every day, you are a horse. .. Hul This has been tried: in 12 hours, they ended up with a DEAD horse. James Watt didn't want any customer nit-picking about HIS horse-power so he penciled in a generous power margin. But your numbers are good, of course. Brian W |
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Help needed understanding turbojets
Maybe 6 hours - leave some time for eating...
Hul Brian Whatcott wrote: Hul Tytus wrote: ...If you lift 550 pounds one foot every second and keep that going for 12 hours or so every day, you are a horse. .. Hul This has been tried: in 12 hours, they ended up with a DEAD horse. James Watt didn't want any customer nit-picking about HIS horse-power so he penciled in a generous power margin. But your numbers are good, of course. Brian W |
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