Spaceships: Engineering and (Im)pulsethrust Option
1.
If the panels are fitted to a ship without a power plant, then assume the (non–existent) power plant is sized to the ship’s basic systems and a Thrust one manoeuvre drive.
Basically, thirty percent of hull tonnage in power points.
2.
A ship equipped with solar panels consumes power plant fuel at one quarter the normal rate so long as it is only engaged in minimal manoeuvring and does not fire any weapons.
In which case, donkey engine and/or batteries.
3.
Minimal manoeuvring does not include long periods at full thrust, so solar power alone is useless for most commercial and military vessels.
Which is where pulsing comes in: the manoeuvre drive is activated on alternate six minute turns. Six minutes is enough for the crew and passengers to prepare themselves for the next thrust. Full thrust is rather ambiguous, but let's say between what's mentioned as default [
Thrust one manoeuvre drive], and not wanting to rip off the solar panelling by excessive acceleration, whatever that would be.
4.
By overloading the manoeuvre drive, the engineer can lend the ship extra speed and manoeuvrability.
Assuming two gee acceleration doesn't rip off the solar panelling.
5.
A favourite of engineers on action vids, the power plant can be overstressed on a temporary basis to provide the ship with more Power points.
It's virtual, but let's assume you can squeeze more juice out of sunlight, or more likely, the chemical or ionic interaction within the battery cells.
6. For starships, solar panelling is likely to be starved of sunlight while transitting, so you will need a donkey engine that can provide the minimum power for life support.
7. Jump drives can be kickstarted by diverting excess power generated by the solar panelling to batteries.
8. A primarily solar panelled powered spaceship is likely to remain in orbit; planetside landing is will need at least sufficient battery capacity and/or a donkey engine.
9. Low flight speed within atmosphere during daytime can be powered by the solar panelling.