Recent content by pdcpdcpdc

Thanks Ryan_m_b. That is exactly what I was looking for. By all means, it is an aircraft which is using ground effects. It is somewhat similar to http://en.wikipedia.org/wiki/Lun-class_ekranoplan. For it to work at high speeds it would take a low pressure tunnel just like I proposed. I stand...

Cost of Construction. The only thing that ever matters.

Hello brettjor and Bob S If my understanding of your concept is correct, it will involve a lot of digging. In a nutshell, it would be several orders of magnitude more expensive than surface transport of any sort. Take a look at this article http://en.wikipedia.org/wiki/Channel_Tunnel. Do let...

Wow, this thread is heating up. I am feeling the love already.:wink: I am working on a quantitative argument. It will revolve around 'Bloodhound SSC'. You can check it out for yourself in the meantime. I will try to answer all the queries then.:cool:

One of the reasons for this thread is that it appears aerospace community has given up on the idea of supersonic/hypersonic travel. Although people are working on some ideas but they estimate that such things would take several decades to reach commercial market. I think we can consider some...

Hi Guys, I can't do Quantitative drag analysis. So, I have no idea how severe wall/blockage effects are. But I am of the opinion that these effects can be mitigated to an extent by increasing the diameter of the tube. It ain't wind tunnel and rolled steel is cheap :-). As far as hydrogen is...

Hello Guys, Please provide your opinions on the following Hypersonic Tunnel based transportation system? I am a Computer programmer and not some aerospace engineer, so kindness is appreciated :-) The primary problem with hypersonic(or supersonic) travel is that we have to remove several...