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--- scifi:spacecraft [2019/11/24 14:27] – sam
+++ scifi:spacecraft [2019/12/08 11:06] – sam
@@ Line 44: / Line 44: @@
 The second is fuel, which is often a liquid (sometimes solid) which completely fills the fuel tank with no space left over. Like cargo, fuel also has a density and so a full fuel tank increases the mass of the ship. Water counts as +14 per dt (14m³ of water has a mass of 14 tonnes, by definition), other fuels will count differently.
+=== Supplies ===
+Crew need supplies, which counts as cargo. 1dt of supplies has a mass of 5,000kg, and will last 1 crew member 1,000 days. This includes food, water, air and other necessities. It is assumed water and air is recycled as much as possible, but 'loss' is included in the expendables.
+=== Crew Quarters ===
+How much space crew need depends on the duration of the flight.
+  * Hours: 0.5dt
+  * Days: 2dt
+  * Weeks: 5dt
+  * Months: 15dt
+Cramped quarters are about half this. Luxurious can be from twice to five times this.