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#11
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Anthony W wrote:
Matt Whiting wrote: Why aren't more old Boeing engines finding their way into homebuilts? A 140 bound 200HP engine sounds sweet. With a couple of those I could get serious about my dreams to build an ME262... ;o) Tony I'm not sure, but I'll venture a guess ... fuel consumption is probably outrageous. Matt Either that or they cost a fortune to maintain. Tony Probably both. Matt |
#12
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"Matt Whiting" wrote in message
... I'm not sure, but I'll venture a guess ... fuel consumption is probably outrageous. Matt Either that or they cost a fortune to maintain. Tony Probably both. Matt Is that the Hummer® model??? Rich S. ) |
#13
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Rich S. wrote:
Either that or they cost a fortune to maintain. Tony Probably both. Matt Is that the Hummer® model??? Rich S. ) I can't say for the H2 but the original Hummer with the diesel engine isn't all that bad for a vehicle that size. Tony |
#14
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Marc J. Zeitlin wrote: Montblack wrote: IIRC, LBS thrust = ("roughly" ...be gentle) 65% for its horsepower equivilant. 100 lbs thrust will be about 65 hp. Is this close to being a workable rule of thumb? Nope. Power = Force x Velocity For a "thrust" engine, the equivalent "power" it's producing will be dependent upon how fast it's going. At 60 MPH, 100 LB of thrust is equivalent to about 16 HP. At 150 HP, 100 LB of thrust is about 40 HP, so you can see that a rule such as you postulate isn't going to work. -- Marc J. Zeitlin http://marc.zeitlin.home.comcast.net/ http://www.cozybuilders.org/ Copyright (c) 2005 But generally thrust goes down as the engine accelerates. I believe jet engines are rated at static thrust, only turbo props have a HP rating. |
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