Wow, here's one for the bikers!!
- Thread starter Jeff396
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MossRoad
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Re: Wow, here\'s one for the bikers!!
That low RPM stuff is confusing. If you read it, the engine spins at a maximum of 50,000 RPM. It is set to start at 25,000. The gearing reduction of the output shaft brings the RPMS of the output shaft down to 6000 RPMs, not the engine(at least that's the way I read it). So, with an engine RPM range of 25,000 to 50,000 RPM and an output shaft range of 0 to 6000 RPM, the 2000 RPM at the output shaft is 1/3 of the range. The engine has a 25,000 RPM range. One third of that is about 8,000 RPM. Add that to the 25,000 RPMs at idle and you get an engine RPM of about 33,000 to produce 2000 RPM of shaft output to get that torque. I'll bet it is a deafening scream /w3tcompact/icons/laugh.gif
That low RPM stuff is confusing. If you read it, the engine spins at a maximum of 50,000 RPM. It is set to start at 25,000. The gearing reduction of the output shaft brings the RPMS of the output shaft down to 6000 RPMs, not the engine(at least that's the way I read it). So, with an engine RPM range of 25,000 to 50,000 RPM and an output shaft range of 0 to 6000 RPM, the 2000 RPM at the output shaft is 1/3 of the range. The engine has a 25,000 RPM range. One third of that is about 8,000 RPM. Add that to the 25,000 RPMs at idle and you get an engine RPM of about 33,000 to produce 2000 RPM of shaft output to get that torque. I'll bet it is a deafening scream /w3tcompact/icons/laugh.gif
looch
Veteran Member
Re: Wow, here\'s one for the bikers!!
<font color=blue>I'll bet it is a deafening scream</font color=blue>
What, the engine - or the sound my brain makes when I try to figure out what you just wrote? /w3tcompact/icons/laugh.gif
<font color=blue>I'll bet it is a deafening scream</font color=blue>
What, the engine - or the sound my brain makes when I try to figure out what you just wrote? /w3tcompact/icons/laugh.gif
Re: Wow, here\'s one for the bikers!!
Do Y'all remember the movie "The Lively Set"? It was a movie with James Darren, Doug McClure and Pamela Tiffen which was pretty much a Chrysler PR movie about their new turbine powered car. I watch it everytime it comes on....great stuff!
<A target="_blank" HREF=http://www.celebhost.net/jamesdarren/lively.html>http://www.celebhost.net/jamesdarren/lively.html</A>
Jeff
Do Y'all remember the movie "The Lively Set"? It was a movie with James Darren, Doug McClure and Pamela Tiffen which was pretty much a Chrysler PR movie about their new turbine powered car. I watch it everytime it comes on....great stuff!
<A target="_blank" HREF=http://www.celebhost.net/jamesdarren/lively.html>http://www.celebhost.net/jamesdarren/lively.html</A>
Jeff
MDNick
Gold Member
Re: Wow, here\'s one for the bikers!!
Turbine engines, are relatively ineffecient. You do not get more bang for your buck in most applications. HOWEVER, what you do get is a whole lot more bang. They can produce much more horsepower than IC engines, but consume vast quantities of fuel (and air which brings its own problems) to do it. Now if fuel and horsepower and WEIGHT are all an issue (as in an airplane) then the turbine really shines. Horsepower to weight is far better, but in autos (and tractors) weight isn't so big a deal. A MC is like an airplane in that regard, you can get Chevy big block power with 80 cc rice burner weight. Pretty cool.
My question is, how in the heck do you stay on that beast with that acceleration. I have riden a few sport bikes and you had to hang on to them. This has more than twice the performance of some of them. Without a harness, I can't see how you stay at the controls.
Nick
Turbine engines, are relatively ineffecient. You do not get more bang for your buck in most applications. HOWEVER, what you do get is a whole lot more bang. They can produce much more horsepower than IC engines, but consume vast quantities of fuel (and air which brings its own problems) to do it. Now if fuel and horsepower and WEIGHT are all an issue (as in an airplane) then the turbine really shines. Horsepower to weight is far better, but in autos (and tractors) weight isn't so big a deal. A MC is like an airplane in that regard, you can get Chevy big block power with 80 cc rice burner weight. Pretty cool.
My question is, how in the heck do you stay on that beast with that acceleration. I have riden a few sport bikes and you had to hang on to them. This has more than twice the performance of some of them. Without a harness, I can't see how you stay at the controls.
Nick
knucklehead
Platinum Member
Re: Wow, here\'s one for the bikers!!
Paul - I haven't laughed that loud in a long time - you cleaned out my lungs!
I gotta absorb that, too - so the low rpm is gearbox output. And small gas turbines are inefficient. I was thinking perhaps that constant speed operation (even low speed) might allow design and tuning for maximum effieciency. Most problems I have encountered with design (I'm not a designer, but used to do testing for an electrical utility) are due to the need for variable power output (gas, water, and steam turbines).
It's interesting to note that the total thermal efficiency of even large power plants is only about 33% - the problem is the inability to extract the energy (to do work) from the heated medium (steam, gas) at lower temperatures - which is why centralized heating plants do make sense, as do regenerative boilers in concert with gas turbines. Anyone who wants to improve efficiency of anything will look to extract more energy - mostly in the form of heat, that they can in a particular process.
Almost time to start talking woodstoves. Where's the wood burning forum?
Paul - I haven't laughed that loud in a long time - you cleaned out my lungs!
I gotta absorb that, too - so the low rpm is gearbox output. And small gas turbines are inefficient. I was thinking perhaps that constant speed operation (even low speed) might allow design and tuning for maximum effieciency. Most problems I have encountered with design (I'm not a designer, but used to do testing for an electrical utility) are due to the need for variable power output (gas, water, and steam turbines).
It's interesting to note that the total thermal efficiency of even large power plants is only about 33% - the problem is the inability to extract the energy (to do work) from the heated medium (steam, gas) at lower temperatures - which is why centralized heating plants do make sense, as do regenerative boilers in concert with gas turbines. Anyone who wants to improve efficiency of anything will look to extract more energy - mostly in the form of heat, that they can in a particular process.
Almost time to start talking woodstoves. Where's the wood burning forum?
MossRoad
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Re: Wow, here\'s one for the bikers!!
Yes! /w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif
Yes! /w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif/w3tcompact/icons/laugh.gif
MossRoad
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Re: Wow, here\'s one for the bikers!!
I also doubt the 1/4 mile speeds and times are correct.
Look at the top drag bike racer in the world <A target="_blank" HREF=http://www.nhra.com/2002/events/race17/klash/A_Savoie.html> click here </A> and look at her times and speeds.
I just don't think you could harness that kind of 1/4 mile speed in a street bike. But I'll bet you are correct in the top end department. /w3tcompact/icons/smile.gif
I also doubt the 1/4 mile speeds and times are correct.
Look at the top drag bike racer in the world <A target="_blank" HREF=http://www.nhra.com/2002/events/race17/klash/A_Savoie.html> click here </A> and look at her times and speeds.
I just don't think you could harness that kind of 1/4 mile speed in a street bike. But I'll bet you are correct in the top end department. /w3tcompact/icons/smile.gif
Re: Wow, here\'s one for the bikers!!
Yeah, and look at the amount of the tire contact with the ground compared to Angelle's. That's gotta be the weakest link. Someone seems to have gotten bad info on this listing. I smell a law suit!!
The bids up to 104k......Probably the same kind of people that would buy Evil's rocket cycle./w3tcompact/icons/smile.gif
Jeff
Yeah, and look at the amount of the tire contact with the ground compared to Angelle's. That's gotta be the weakest link. Someone seems to have gotten bad info on this listing. I smell a law suit!!
The bids up to 104k......Probably the same kind of people that would buy Evil's rocket cycle./w3tcompact/icons/smile.gif
Jeff