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#11
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Low mass ratio SSTO
"Zoltan Szakaly" wrote:
Charts are charts, and hardware is hardware - and rarely do the two meet. Try just flying your ramjet as a simple lifter - I believe that even if you get it to work you are in for a big surprise when you near mach 1 and the nature of the air stream changes. The ramjets and the cone shaped intake system have been well understood for 20 or 30 years. See the BOMARC missile ramjet or the SR71. They work like a charm. At mach 6+? My engine works like a charm at standstill, You have a ramjet ... which can operate at a standstill ... hmmm .... you don't say?! Quite a remarkable thing, that. I guess we stopped talking about hardware somewhere along the way and started talking about idealized, theoretical models. I have no reason to assume it will not work supersonically. Ya know what's funny, I said the *exact* same thing when I had my bicycle pointed downhill from the top of Mt. Rainier. Didn't turn out quite as I had planned though... I am getting over 4,000 Isp at standstill and for my SSTO concept to work I am only assuming a 1,000 Isp which is much less than actual data. That standstill ramjet again... Do you have a submarine with a screen door as well perhaps? A solar powered flashlight? A cordless extension cord? A "The Sound of one Hand Clapping Clapper (TM)"? |
#13
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Low mass ratio SSTO
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#14
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Low mass ratio SSTO
(Oren Tirosh) writes:
(Zoltan Szakaly) wrote in message . com... Somebody earlier doubted me so I reaffirm here, I do have a ramjet that works at a standstill and gets me over 4,000 Isp. I am probably gona make a flight vehicle and try it as a first stage engine. For now I am just trying to make a flying car. If it works at a standstill there is no ram pressure so it's not a ramjet. Sure, it has no turbine and *looks* more like a ramjet than any other type of jet engine but what's important is how it works, not what it looks like. You can call it an induction jet (or more specifically an expander cycle induction jet) and hopefully avoid some of the skepticism. Better yet, he should call it an "ejector jet," since that is what it is most often called in the literature... -- Gordon D. Pusch perl -e '$_ = \n"; s/NO\.//; s/SPAM\.//; print;' |
#15
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Low mass ratio SSTO
Zoltan Szakaly wrote:
The ramjets and the cone shaped intake system have been well understood for 20 or 30 years. See the BOMARC missile ramjet or the SR71. They work like a charm. My engine works like a charm at standstill, I have no reason to assume it will not work supersonically. I am getting over 4,000 Isp at standstill and for my SSTO concept to work I am only assuming a 1,000 Isp which is much less than actual data. My publication url: http://vtol.net/air.htm A picture of my induction jet engine: http://vtol.net/induction.htm Zoltan Enough design detail for independent analisys and testing might help credibility. Then again, if the design is garbage... |
#16
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Low mass ratio SSTO
(Zoltan Szakaly) :
Earl Colby Pottinger wrote in message ... (Zoltan Szakaly) : Charts are charts, and hardware is hardware - and rarely do the two meet. Try just flying your ramjet as a simple lifter - I believe that even if you get it to work you are in for a big surprise when you near mach 1 and the nature of the air stream changes. Earl Colby Pottinger The ramjets and the cone shaped intake system have been well understood for 20 or 30 years. See the BOMARC missile ramjet or the SR71. They work like a charm. My engine works like a charm at standstill, I have no reason to assume it will not work supersonically. I am getting over 4,000 Isp at standstill and for my SSTO concept to work I am only assuming a 1,000 Isp which is much less than actual data. My publication url: http://vtol.net/air.htm A picture of my induction jet engine: http://vtol.net/induction.htm The problem is the real world does not care about assumations. What you need to do is to fly your engine and report back the real results, not what you think it will do, the real data. Remember, if you get the results you think you will get, you will have a real money maker there. But people will demand real world data before you can get at the money. Earl Colby Pottinger The interesting thing is that the airflow/gas flow in my intake system is already supersonic. Even with the engine at a standstill. I am working on instrumentation so I can learn more about the engine in order to get the best hover endurance for the flying car. But that say nothing about the outside flow as it tries to enter your inlet. External flow patterns will be diffirent than the flow that is trapped inside the walls of your intake. Somebody earlier doubted me so I reaffirm here, I do have a ramjet that works at a standstill and gets me over 4,000 Isp. I am probably gona make a flight vehicle and try it as a first stage engine. For now I am just trying to make a flying car. Zoltan Then please go ahead and fly it. Far more than arguing with you, what we really would like to know is what happens when you try to fly it. Earl Colby Pottinger -- I make public email sent to me! Hydrogen Peroxide Rockets, OpenBeos, SerialTransfer 3.0, RAMDISK, BoatBuilding, DIY TabletPC. What happened to the time? http://webhome.idirect.com/~earlcp |
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