Download GURPS Spaceships (4ed) by David L. Pulver PDF

By David L. Pulver

Spaceship sourcebook for GURPS 4th Editon

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Additional resources for GURPS Spaceships (4ed)

Example text

No extra cost if this is standard feature of the setting’s stardrives, otherwise twice the combined cost of both drives. CREW Suggested crew requirements are given below. Bridge crew, gunners, and administrators may be sapient computer programs; others must be live or robots. On vessels organized on hierarchical lines, 10% of the technicians and most of the bridge crew are usually officers, often provided with better quarters. Control Room Crew One per control station. If there’s only one or two control crew, they’re usually styled as a pilot and co-pilot.

A is the spacecraft’s acceleration in G. The spacecraft will normally spend the same time decelerating. 3 hours accelerating to cruising speed near Mars. In the process, the occupants experience a gentle one-half of an Earth gravity acceleration. The ship will need to decelerate for the same time at the other end of its trip. 2. Distance Traveled during Boost An additional complication that is important during short voyages is the distance that was traveled during the acceleration and deceleration phases of the journey.

A spacecraft that is already in low orbit uses delta-V equal to about 30% of escape velocity to break orbit. This is about 2 mps to leave Earth orbit. A winged or contragravity lifter-equipped spacecraft with jet engines (or reaction engines with the ram-rocket design feature) in a very thin or denser atmosphere (p. B249) needs less delta-V to reach orbit or escape velocity. First calculate air speed (see Air Performance, p. 35) using only the jet engine or ram-rockets; then divide mph by 3,600 (giving air speed in mps); then subtract this from required delta-V.

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