DG/DGIV in real life

[HAL9001]

On top of the aforementioned engineering faults, there is another thing.
Even if we had the kind of technology required to build a Deltaglider, I really doubt anyone would want to. With supercompact high-ISP/Thrust/Dv nuclear engines readily available, would you waste them on 5-passenger fighter jet SSTOs with little or no cargo capacity?

Face it, it's more practical to keep STS in use for another 50 years and use the technology to build interplanetary bulk carriers.

And ithink the DG-ex were not possible, because it's too big.

 

[RisingFury]

How is that project coming along, anyway?

Done.

I've started flying my trainer so I get some flight time and experience. Once I get up to like 10 flight hours, I'll launch my DGIV. Currently I'm at 2.