nice!
The Orbital Laser Platform consists of a 96-MJ laser, superconducting
power storage loops for fifteen shots, a target acquisition camera, and
small maneuvering thrusters. Hitting point targets like tanks requires
careful aiming, so the Platform will fire only a few shots during each
firing pass, followed by maneuvering to get into position for the next
orbit.
The fusion rockets use 0.8 gallons of reaction mass per hour.
Subassemblies: Body +2.
Powertrain: Two 20-lb. vectored fusion rockets; 2-kW RTG; twelve
270,000-kWs rechargeable power cells.
What is the time to recharge each shot?
I get 15 hours.
if "basic" stealth were not a problem you could get 4kW from solar cells
-- twice what that reactor brings.
Fuel: 20 gallons water.
would it be easier to put it in a polar orbit so it can fire twice daily
at a given spot on the planet?
(unless you have a lot of equatorial problems...)
Weaponry
96-MJ Rainbow Laser [Bod:F] (15 shots) +0.
Weapon Weight Volume Cost Power WPS VPS CPS TL
96-MJ Rainbow Laser 2,000 40 $590,000 108,000 - - - 9
Weapon Ammo Malf. Type Damage SS Acc 1/2D Max RoF
96-MJ Rainbow Laser - ver. imp. 6d*26 25 31 248,000 744,000 1/2
soooo, its range is in yards...
looking at VE125, it seems you have a "Very long" range 96,000kJ laser.
1/2D is 140 miles (on earth).
that's 7000 miles in space (vacuum/trace) for a rainbow laser (VE126)
("Trace" is 0.01 atm (Basic4e p. 429) )
http://en.wikipedia.org/wiki/Atmospheric_pressure
0.01 is at 100,000 feet. (~19 miles)
http://en.wikipedia.org/wiki/Low_Earth_orbit
puts a low orbit at about 100 miles.
All together:
Minimum 1/2D GURPS WEAPON range for "low orbit" to surface rainbow laser:
19.2 + (81/50) = 20.82 miles (36,643 yards)
I get 2.098MJ. (for VL Range)
Looking at this, you might do well to re-engineer your laser to be
Standard Range:
96MJ SR RW LSR:
1/2D: 61968 yards (35.2 miles on earth) -> atm+ 800 miles
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