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--- scifi:spacecraft [2019/11/24 14:27] – sam
+++ scifi:spacecraft [2019/12/07 18:02] – 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 and other necessities. It is assumed water 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.