[Spaceships] Actually GMing a world with Pseudovelocity drives?

[vicky_molokh]

An idea for another solution to the question of kinetic/potential energy and similar stuff - how about a PV drive:

• Has a an effect that makes this pseudo-velocity semi-persistent - it 'bleeds off' gradually if the drive is turned off (or if it exceeds the drive/ship's max PV), and it is reduced or redirected significantly on a collision (e.g. PV loss/deflection is 50× the value of normal velocity's loss/deflection).
• Has an effect that neutralizes 'real' velocity opposing its movement direction first, and only then starts giving PV. So if objects moves downward at 10 m/s, the PV drive of 1m/s² will spend the first 10 seconds neutralizing real speed, and spend the next 10 seconds giving PV upwards.
• (Optional) A PV drive grants a speed that is pseudo in a large fraction, but not completely. E.g. a drive/ship combo rated for 50mps of PV actually attains a speed of 5 'real' mps and 45 pseudo-mps.