ESA Unveils Re-Entry Module
bmcage writes "The ESA unveiled the Intermediate eXperimental Vehicle, a real re-entry vehicle. Although it will not be reused, it has a better geometry than NASA's Orion or the Russian Soyuz, giving better lift, and control. This is not done by the addition of useless wings, but by using two brakes. Finally a departure from the Apollo design that is actually better?"
SpaceShipOne and SpaceShipTwo were purely sub-orbital; they were glorified rocket planes that didn't carry anywhere near the fuel necessary to reach orbital velocity. SpaceShipThree, on the other hand, will reach orbit, but it will almost certainly be a multi-stage craft.
And while discarding empty fuel tanks may be wasteful, it would be far more wasteful to expend the enormous amount of fuel required to carry the entire craft to orbit.
Until we find a better means of propulsion than rocket fuel, multi-stage craft are the most resource-efficient means of attaining orbit.
How can I believe you when you tell me what I don't want to hear?
Since it's not reusable, the fragile heat resistant tiles are not a problem. The shroud is for aerodynamic control during launch, you can see in the video that the vehicle is a lifting body; have it sit exposed on top of the rocket would give you huge off-axis forces due to drag/lift.
Single stage to orbit doesn't make sense from a fuel economy point, you need a lot of big engine at the beginning, why accelerate all that mass into orbit? Ditto on reentry, you have to bleed off all that additional energy you put in, requiring lots more of those fragile heat shield tiles.
I'm aging rapidly, I bought a new game and had no idea if my machine was good for it.