The following are rules and ideas for spaceships and space combat in Fading Suns.
New Space Ship Construction
New Space Combat Rules
Spacecraft Notes
Atmospheric Spacecraft
Common Space Practices
Ship Design.
The following are obviously huge abstractions, but that is how I feel FS considers space combat. Keep it simple
After buying Noble Armada I have altered some of the values....
Example ship build.
Vitality
5% of hull base value
0.5% of hull per each extra point
Armour
Base value 0
2% of hull per point of armour
Drive Engine
5% of base hull for base 5%SOL
Combat burn - max equal to %SOL or Vitality of the ship, whichever is less
Each 1%SOL between 6 and 15 - 0.5% of hull
Each 1%SOL between 16 and 20 - 1% of hull
Each 1%SOL between 21 and 25 - 1.5% of hull
Each 1%SOL between 26 and 30 - 2% of hull
Each extra 1%SOL - 3% of hull
20e per +1 per 100 hull.
Crew and Passengers
Crew: 1 per 200 pts of hull minimum
Passengers, passengers need a minimum of 1 space each, this is very low birth stuff. Average quarters use 2-3 pts per passenger, luxury would use 10+.
2 pts per crew
1 pt per passenger space
Cargo
Internal
External, not for landers. Atmosphere ships may not have any current external cargo if they enter an atmosphere or it burns up, as may the ship.
2 pt per space (about 1 ton)
2 pt per slot, each slot can carry 3 spaces. Maximum slots equal to Vitality/2.
Jump Engine
5% of hull value
Batteries
To get 100pts of Hull from planet to planet costs 500 e(nergy) per 1% speed of light
For a 100 hull ship to make a trip at 20% SOL would require 10,000e
The base size of the battery = 1 pt per 2000e
More can be paid for better batteries
Base Cost x base size/(new size/2)
Maximum reduction is half size (x4 cost).
Reactors
2% of hull for basic needs of ship
+1 pt per output of 100e per combat turn
+0.5% of hull per %SOL
Supplies
1 pt per 20 people per week x grade
Gruel - x0.5
Rations - x1
Food - x1.5
Good - x2
Very Good - x3
Sumptuous - x4
Weapons - Link to Ships Weapons Table
The cost of a weapon/200 in pts
Ammunition canisters - 1,2,3 pts for small, medium and large respectively, except all missiles are 2pts.
Energy use can be found on the weapons table
Autoloaders are 2,4,6 pts for small, medium and large weapons repectively, except missiles which are always 4pts.
Tractors
50 + 10 per rating.
A rating is 1%SOL that the target ship is slowed.
Energy us - 100e/100 hull per -1 VP
Maneuver
2% of hull for base system
2% of hull per + to pilots skill (or rating)
Energy use: 20e per 100 Hull per +1
Escape Pods
0.5 pts per person space
Base hull value - 500 pts
Link to Weapon Tables. Link to Ship Design Tables.
Considering the following energy use:
Medium Laser shot - 125e
Medium Blaster - 150e
Medium Sandcaster - 30e
Shields - 100e
Use of maneuver +2 - 200e
Combat Drive bonus - 100e per +1.
If the pilot fired all weapons, use full +2 maneuver, and pushed his drive +10 he would use up 1660e. This doesnt count shield use.
The 10000e reserve will obviously not last all that long in an extended combat.
The following is taken from a site I found on the web, http://www.geoza.com/fadingsuns/. I recommend you have a look.
In my alternate rules, I discussed the assumption that ship ratings listed in FL:T were derived by assuming constant acceleration toward the jumpgate, resulting in spacecraft crossing through the jumpgate at the speed listed in their profile. There are several reasons why this would not be the case, however.
The most significant reason for not "jumping" while going at the "maximum" speed listed is quite obvious if you think about it. Ask yourself the following question: How do you get from Byzantium Secundus to Stigmata as fast as possible?
The answer is, you jump from Byzantium Secundus to Criticorum, then to Shaprut, and then to Stigmata. What you don’t do is jump into the Criticorum and Shaprut systems going full-speed! Why? Because you have to turn around and jump back through the gate as soon as you can. If you jump into the system going full-speed, it will take you many days to slow down, turn around, and travel back to the jumpgate. If you accelerate from Byzantium Secundus until the halfway point, then turn around and decelerate until you reach the jumpgate, you go through the gate at a slower speed (much less than even 1% lightspeed), and you will be able to quickly turn around, make the next jump into Shaprut, and then make the next jump into the Stigmata system. Then you accelerate again, but only halfway to Stigmata – you have to start decelerating again so that you won’t run into the planet going 20% of lightspeed.
Thus, a ship on such a trip never will reach the "maximum" speed listed in the book. At most, it would only reach half that speed, before it had to turn around and begin decelerating again.
By comparison, a ship traveling from Byzantium Secundus to Criticorum (only one jump) would be able to accelerate all the way out to the jumpgate, jump through at its listed "maximum" speed, and then decelerate all the way in to Criticorum.
There is one problem with that scenario. If you are the pilot of that second ship traveling to Criticorum, you are assuming that you will be able to jump through the gate exactly as you reach it going 10%, 15%, or 20% of lightspeed. Given the fact of jumpgate reset delays and fairly high amounts of traffic between those two systems, that is a very risky assumption.
A conservative captain will therefore set a course that will allow him to decelerate towards the jumpgate and if necessary stop before passing by/through the gate, allowing for delays in reset times. The rules mention slowing down before a jumpgate at the top of page 62 in FL:T.
There are only two situations that would allow a ship to more safely pursue a course of constant acceleration towards the jumpgate. One, the ship has a reset jumpkey that will allow them to ensure that they can jump when they reach the jumpgate. Or, two, the ship has a certain amount of control over and knowledge of the situation at the jumpgate. For example, the ruling Duke of a world has a naval patrol at the gate which keeps his ship informed as to the situation at the jumpgate, and can control traffic through the gate, ensuring the Duke’s ship can pass through as it gets there. Even there, a bad result on the jump-reset delay could ruin the plan.
So most ships wouldn’t reach their listed speed on a typical jumpgate trip. They would normally accelerate to half the listed speed, turn the ship around, and fire the thrusters in reverse to decelerate towards the destination. (Once again, this assumes that the maximum rate of acceleration the ship is capable of is defined
Premise: the chances of running into a ship in deep space are fairly small, and getting into position to engage them is also small. So I will assume that nearly all combat occur near a destination, which means the ship is slowing down or speeding up, but is currently at a reasonable speed that would allow an attacker a chance to engage you in combat.
It is too difficult to take into account such factors as acceleration, vectors, gravity etc. For the purposes of these rules we will abstract most of these factors into a few rolls.
The GM should decide a number of factors when beginning a space combat.
Safety.
Safety is someplace where you are able to cease combat with your enemy. It could be anything really, but probably is an area near where reinforcements are available, or where your enemy is not willing to go. A pirate is not likely to approach a planetary system where he knows fighters might intercept him. Further he might not go with a certain distance of that planet due to fuel requirements on his own part, or the threat of pursuit or detection.
This can be easily abstracted into a number of VPs of piloting skill rolls, as long as the pilot is actively seeking safety. In combat a pilot will have a number of types of actions he can pursue: safety, maneuver, close, increase.
Safety: the pilot heads for his safety zone, all VPs count toward gaining this target, any may also be allocated to Increase (counts for both if you wish).
Maneuver: one VP in three may be allocated to reaching safety, the rest are allocated to contolling the ship to avoid enemy fire or obstacles, or to increase or decrease range.
Close: all VPs may be allocated to decrease the range with your enemy. One in four may also count toward gaining Safety.
Increase: all VPs may be allocated to increase range with your enemy. One in two may also count toward gaining Safety.
Range.
The range between ships will be either Extreme, Long, Optimal, Short, Close, Contact. This will be simply reflected by a specific value in VPs. Each turn the two ships will modify this VP total, based on ship speed and performance.
Most ships are rated for %speed of light, this will be used to reflect the ships drive power (acceleration primarily). This value is the base score of the ship per turn. A Pilot roll will add VPs to this total, and an Engineers roll can be used to compliment this (or vice versa). The difference in the totals can be added to or deducted from the range, or added to gaining Safety.
Each GM should make an estimate of how long they want average space combat to occur, say 20 rounds. This therefor sets the level you place safety at. Using an average ships with 15%SOL they are probably going to score about 20 points a turn, so Safety could be set at around 400 points..
Based on this range values could be set as follows:
Setting Start Range
Making the assumption that an encounter is going to occur implies that one side sees the other first. From there they try to close and the target must roll to see them. Starting at Farway range and moving in make sensor rolls until successful. Determine a random distance within that range group as the starting point (based on VPs scored maybe).
Combat now begins at this range. It could possibly start sooner however if the attacker decides to open fire before they have been detected, assuming they hit. The attacker may also use whatever methods they have to disguise their approach, such as putting Sand (-1 VP) or Chaff(-2 VP) out front, or maybe launching a dummy bouy, or having stealth techniques.
The following is taken from a site I found on the web, http://www.geoza.com/fadingsuns/. I recommend you have a look.
Alternate rules for space travel in Fading Suns, and commentary on techniques and tactics which result from Fading Suns space travel rules.
This is a two-part message. In part one, I will discuss some proposed alternate rules for space travel in Fading Suns. In part two, I will comment on space travel in the Known Worlds, and some logical practices and tactics which might be common in the Known Worlds.
(My apologies ahead of time to those of you for whom this may seem pedantic, but you’d be surprised how many people don’t know some of the basic physics involved, or who "know" it, but don’t think about it ).
Why are alternate rules for space travel and spacecraft profiles needed?
Spacecraft as currently defined by Fading Suns are fine if all your characters ever do is simply "book passage" and travel between worlds. But if your players want more detail in order to play a Charioteer character, or a Barbarian Raider, or if you want to add some detail and "realism" to your descriptions of space travel, then the rules as they currently read are somewhat lacking.
First, the characteristics for spacecraft do not make sense mathematically or scientifically. Spacecraft are not just big cars that drive through space. However, Forbidden Lore: Technology (hereafter referred to as FL:T) defines their capabilities little differently than they do a landcraft or beast cart – by listing a speed and a range of travel.
The descriptions of spacecraft do add a secondary comment on speed that notes the number of days to a jumpgate. These numbers are incorrect according to any configuration of acceleration, speed and distance to jumpgates that I tried. Frankly, I suspect the game developers simply made them up and wrote down something that "sounded right." If I’m wrong, I’ll be happy to take that back.
More significantly, the listed stats for spacecraft provide little of direct use to a character or gamemaster who is trying to put detail into space travel. Spacecraft should be rated not according to speed, but rather the maximum acceleration of which they are capable.
Range shouldn’t be listed as a function of distance, but rather one of time – how long the spacecraft can maintain that acceleration. Listing a distance might seem intuitively correct to some, but it isn’t useful except as a general guide. A spacecraft, unlike a landcraft, can coast once it achieves a certain velocity. It isn’t necessary to continue to "push on the gas pedal" to keep going.
If you know the maximum acceleration of a spacecraft, and how long it can maintain that amount of acceleration before it has to refuel, you can figure anything else out that you need to.
If you have only what Holistic lists for the spacecraft in Fading Suns, you are lacking crucial details if you want to do anything creative with a spaceship, or if you are looking for a more "realistic" approach to running space travel adventures.
The following changes will provide a realistic level of detail to space travel, without altering the feel of Fading Suns or requiring a lot of heavy calculation. The changes I propose keep a degree of simplicity and "playability" while adding some detail to the rules for spacecraft.
First, add one additional characteristic to all FS spacecraft: acceleration. I have based the recommended ratings on an analysis of various "facts" given in the FS rules, and I will explain how I arrived at these values later in this text, for those who are interested. Those who don’t care about the math can simply use these values without worrying about the details. These stats change very little in the spacecraft listings – you just have to add them on. The only real change is in the time it takes spacecraft to reach the average jumpgate – and those changes are necessary because the times listed in FL:T simply aren’t possible (more on that later).
I have listed below what the acceleration rating for each ship should be based on the speed listed for that ship. Acceleration is given in hours per % lightspeed - i.e. it takes the ship so many hours to increase its velocity by 1% of lightspeed (1% of lightspeed is 3,000 km/second). A ship with an acceleration of 1 hour/ % lightspeed, for example, starting from a "stationary" position in space, would be traveling at 3,000 km/second after 1 hour of acceleration. (This is really fast, by the way, and much faster than even the fastest spacecraft in the Known Worlds.)
A ship with a listed "speed" of 10% lightspeed should have an acceleration of 27.8 hours/ %lightspeed, and would take a total of 278 hours to reach 10% lightspeed (or, about 12 days). Which, incidentally, is the length of time it actually would take that ship to reach a jumpgate (not 8 days as listed in the book – see below for why that is). Other ratings follow:
15% lightspeed – 12.3 hours/ %lightspeed
20% lightspeed – 6.9 hours/ %lightspeed
25% lightspeed – 4.4 hours/ %lightspeed
30% lightspeed – 3.1 hours/ %lightspeed
For range, especially for jump-capable ships where range is listed in terms of the number of jumps that can be made, no change is absolutely necessary. If you want to add some detail, however, the range can be replaced with a characteristic that lists the length of time the ship can accelerate at maximum acceleration. This can be easily calculated by multiplying the number of days it takes a ship to reach jumpgate by the number of jumps it can make, times 2.
This number will give the number of days of full accleration. Multiplying by 24 to get the number of hours of full accleration might be even more useful. That way, a pilot character will know how many hours she can afford to use up on side-jaunts, maneuvering, and can even save some fuel by coasting at a slower speed than the "maximum" listed (if she has the time to spare, that is).
Actual travel times to jumpgate for ships with various maximum "speeds" are shown below:
5% - 23 days
10% - 12 days
15% - 8 days
20% - 6 days
25% - 5 days
30% - 4 days
These times assume constant acceleration and are mandated by physics, based upon the stated distances from planets to jumpgates (see below for a full explanation). The times stated in the books simply are not consistent with the stated distances to jumpgates and the maximum speeds listed for various ships.
Several assumptions had to be made to determine usable values for space travel. Foremost among these is the assumption that physics works the same way in the Fading Suns universe as it does in ours – not a big stretch, but little things like what the speed of light actually is rely on such an assumption. There are a couple of others that aren’t quite as obvious:
With these assumptions in mind, the maximum acceleration a ship is capable of maintaining can be calculated. The distance is known, and the final velocity is known. Since constant acceleration is assumed, the average velocity is also known (it will be half of the maximum speed for that ship – a ship with a "maximum" speed of 10% lightspeed would average 5% lightspeed over the entire journey). Because the average velocity is known, the travel time is also known, and when that is figured into the values for final speed and distance, acceleration results. So, with constant acceleration assumed, the acceleration ratings for the various ships can be easily calculated, and the resulting values added to spacecraft profiles.
The average speed derived from the listed "maximum" speed also mandates the minimum travel times to a jumpgate. If a ship can travel no faster than 10% of lightspeed, for example, it cannot start (stationary) at a planet and arrive at a location 15 billion kilometers away any sooner than 12 days later. It just isn’t possible unless the laws of inertia are somehow ignored (see assumption 3 above). The other revised times to jumpgate are based on this kind of simple calculation (take half the speed listed, multiply by 300,000 km/sec, and do the math based on minutes, hours, and the 15 billion km/100 AU distance).
As a side note, 1 Astronomical Unit (AU) is equal to roughly 500 light-seconds. Put another way, it takes light about 8 ½ minutes to reach the earth from the sun. A ship traveling at 10% of lightspeed would take 83 minutes to travel the same distance. A ship which started at the sun and accelerated constantly toward the earth at a rate which would cause it to hit 20% of lightspeed just as it reached the earth would also take 83 minutes to make that trip (it’s average speed over that distance would be 10% of lightspeed).
The following is taken from a site I found on the web, http://www.geoza.com/fadingsuns/. I recommend you have a look.
As I see it, there are two advantages of an atmospheric grade spacecraft over a void grade craft.
Granted, Lander-grade craft also have these advantages, but there are plenty of reasons to design a ship so that it can’t land. The first, best reason is cost – its just cheaper to build a ship that way. Second is a function of design. Especially for larger warships, landing a ship of that size would require additional bracing design for sitting in a gravity well, enormous landing gear (and associated operating cost increases for tires or whatever), etc.
Another reason for warships to be designed so that they can’t land is weaponry. The larger the ship, the more problem it will have with "blind spots" – places where it can’t "see" or shoot. Spacing sensors and weaponry around the ship in all directions solve this problem, or at least partially solve it. Of course, this means that designing such a ship to land has added costs and design problems associated with it.
And of course, some ships are just TOO big to land, period.
Now, anti-gravity technology such as that found on flitters can help solve this, but large ships, or ships that need to dedicate more of their power to things like weapons and shields, won’t be as likely to use such features, even if the technology is available to the builder.
Which is why I think that the two frigate examples in FL:T should really be considered atmospheric grade, rather than lander grade. True, this is a preference thing, but those ships really are large enough that they should have a lot of trouble landing. Both have significant amounts of weaponry and large shields – enough to make anti-grav landing improbable, as it would drain too much power. The range of weaponry and size of the ships mean that it should really have turrets spaced around the hull to cover various sectors. And, although artwork isn’t the best argument, the illustrations of these craft indicate a non-landing ship (and maybe even a non-atmospheric one, but…).
A related problem is the rating of the Runt Shuttle and Republic Dropship speeds. Both are listed as having speeds in the "mach" category. Now, this is appropriate in one sense for a craft that is intended to operate in an atmosphere. However… the ships really should have a lightspeed rating as well, since both are listed as being able to go to a jumpgate – and mach 8 or 10 won’t cut it in that respect.
Just to give a frame of reference on this, a spacecraft travelling at only 5% lightspeed is travelling at the equivalent of an aircraft flying at Mach 45! And such a craft would still take a minimum of 23 days to reach a jumpgate. Something travelling at a mere Mach 10 probably wouldn’t have enough life support to reach a jumpgate.
Added to that, the term "mach" is an aeronautical term – it really has no place outside of an atmosphere, since it is meaningless there. So based on the relative "days to jumpgate" ratings of the Runt and Republic craft, I propose the following speed and acceleration values:
Runt Shuttle – Speed of 7% lightspeed (17 days to jumpgate), Acceleration of 56.7 hours / % lightspeed.
Republic Dropship – Speed of 8% lightspeed (14 days to jumpgate), Acceleration of 43.4 hours / % lightspeed.
This keeps the time frame essentially the same, while still making them slower than the typical freighter.
On a related note, other craft which are atmospheric or lander grade should also be given atmospheric speed ratings, to determine how fast they can operate inside an atmosphere. Mach 8 – 10 is really pretty fast, even for a really high-tech spacecraft. Mach 4-5 is much more likely, especially for Tech 5 spacecraft like the Runt.
The Republic Dropship is unlikely to be rated at Mach 10 as well, since it has numerous turrets, is heavily armored, and is described as having an "awkward, bulky frame." Mach 2 or 3 seems more like it – and that assumes that somehow Tech 7 craft can overcome some of the limitations of aerodynamics which prevent current aircraft from reaching those speeds unless they are very streamlined.