Blog posts: Fuel

Fueling Icarus

  Icarus is to be a fusion powered starship.  To keep the ship’s mass within reasonable bounds, the fusion drive will have to be very powerful, transforming about 100 grams of fuel into 100 tonnes of thrust every second.  Just how powerful is ...

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Starflight on the Cheap II: Beating the Fuel Costs

In Part 1 we looked at the cost of building and launching a “Daedalus” class star-probe, massing some 2,000 tonnes with empty tanks. The original “Project Daedalus” study fuelled the vehicle with a 50,000 tonne mixture of deuterium (worth $25,000/kg) and helium-3 (currently ...

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