On Tue, Jun 23, 2015 at 03:37:51PM +0200, Knapp wrote:
> I think if spaceships do really need to be small then you are correct but
> do you really think spaceships would be so space limited?

Spacecraft, no.  Hulls are pretty cheap and so are maneuver drives.
Each m^3 of space typically only adds a small amount to hull and
environmental costs.  Cross-section area does not much affect
performance for most purposes.  Combat spacecraft may be smaller to
reduce profile, but that's not usually an important factor either.

Starships, yes.  Jump drives are based on total ship volume, and are
horribly expensive compared with most other ship systems.  Each m^3 of
volume requires both extra jump drive cost and extra fuel tankage, on
top of any other costs incurred.

Spaceboats will also usually be cramped since they are typically
carried aboard starships and count toward their volume requirements.

- Tim