This time two subjects where I changed the rules significantly to adapt them
to the setting: Transport prices and unmanned starships.
Transport Prices
In my setting the average prices for transport on board of a starship look like
this:
Freight: 150 Credits per dton per parsec
Trader Passage: 450 Credits per day on board
Liner Passage: 1,000 Credits per day on board
Low Passage: 200 Credits per day on board (trader or liner)
The normal civilian commercial starship, named a "trader", has a hyperspace
speed of 1 parsec per day, the still very rare fast civilian transports with mi-
litary hyperdrives that give them a hyperspace speed of 2 parsec per day are
called "liners".
For freight transport and low passages there is no price difference between a
trader and a liner, the only difference is that the liner needs only half the time
to deliver the freight or low passenger to the destination.
Therefore liners easily outcompete traders on all major routes, forcing traders
to move on to the smaller trade routes where liner service is not yet available.
A normal passage on a trader means a double cabin and a rather spartan en-
vironment, while a normal passage on a liner means a single cabin and some
luxury - and a voyage that is only half as long as that on a trader. However,
the final price of the voyage is almost exactly the same.
For the Alden Colony these prices mean that the transport of 1 dton of goods
over the 63 parsec from Terra to Alden would cost about 9,500 Credits - not
exactly cheap.
A norrmal passage from Terra to Alden, whether slow and spartan on a trader
or fast and luxurious on a liner, would cost about 30,000 Credits, a low passa-
ge (the way future new colonists likely would travel) costs about 12,500 Cre-
dits on a trader or about 6,500 Credits on a liner.
However, all those prices are purely hypothetical. Currently no trader has Al-
den on its route, and there is no chance that a liner will visit Alden in the near
future - if ever.
Unmanned Starships
The Solar Alliance uses a number of unmanned starships with hyperdrives for
various purposes.
The most common one is the
message drone. It is used by the military, but
also by remote colonies and outposts that need a means to call for help in an
emergency, but cannot afford a true starship.
A message drone is hardly more than a 10 ton hull with drives, power plant,
computer and sensors. It has a hyperspace speed of 3 parsec per day and a
maximum range of about 70 parsec. When it arrives at its destination, it be-
gins to broadcast its recorded message, repeating it several times, and then
shuts down and becomes space debris - it can only be used once.
A message drone costs 6 million credits, a price that is high enough to ensure
that it really is used only when necessary.
Other unmanned drones are used to transport small amounts of vital cargoes
(e.g. pharmaceuticals, spare parts, etc.) or for exploration (the only drones
able to activate their hyperspace drive twice, and hideously expensive).