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I was just recently building a tier 3 starship with a friend, when I realized that the ship had super low HP in comparison to my level 3 party members. We were laughing at how many hits it would take to destroy the ship with melee when I thought, shouldn't there be a conversion chart for when a PC wants to shoot a starship (like the Sarcesian). Is there any conversion charts people have made?
Starship combat and personal combat aren't on the same scale, so a direct comparison of starship hit points and creature hit points isn't meant to work anyway. I do recall seeing a suggestion that a 10-1 ratio might work in some cases, but even that is only an approximation at best.
As it says in the section for shooting starships, it says treat it as a rather massive object. Objects have HP and hardness depending on its item level, as do all objects, such as armor, weapons, vehicles, etc. It's entirely up to the GM what the level would be.
Since the 10-1 ratio is mentioned, that's only a house rule, as it's not mentioned in the book at all. The x10 rule gives people that idea.
I actually recently did the maths for this based on the statistics for starship bulkheads and interiors in the core rulebook - a 10 ft by 10 ft section of wall (starship bulkhead) has 2,400 hit points, while a similar sized section of interior has 1,440 hit points.
Assuming the smallest possible starship (tiny starships bottom out at 20 ft long) and that each side is comprised of 2 10 ft sections, with a pair of 10 foot sections comprising the smaller interior compartment, that's sitting at about 12000 hit points for the smallest possible starship (with a hardness of 35, and whatever effect the gm decides to represent the ships shields and armour upgrades)
10:1 is an incredibly conservative ration. 600-1000:1 is far more consistent with the data that is available
I actually recently did the maths for this based on the statistics for starship bulkheads and interiors in the core rulebook - a 10 ft by 10 ft section of wall (starship bulkhead) has 2,400 hit points, while a similar sized section of interior has 1,440 hit points.
Assuming the smallest possible starship (tiny starships bottom out at 20 ft long) and that each side is comprised of 2 10 ft sections, with a pair of 10 foot sections comprising the smaller interior compartment, that's sitting at about 12000 hit points for the smallest possible starship (with a hardness of 35, and whatever effect the gm decides to represent the ships shields and armour upgrades)
10:1 is an incredibly conservative ration. 600-1000:1 is far more consistent with the data that is available
A particularly large starship/vehicle, when boarded, is then treated as a structure and uses stats for the interior, such as walls, doors etc. This is taken from page 272 of the core rule book.
However, it says starships are treated as an object when attacked. It explicitly says that structures are not objects, so you don't use rules for structures when attacking a starship.
I actually recently did the maths for this based on the statistics for starship bulkheads and interiors in the core rulebook - a 10 ft by 10 ft section of wall (starship bulkhead) has 2,400 hit points, while a similar sized section of interior has 1,440 hit points.
Assuming the smallest possible starship (tiny starships bottom out at 20 ft long) and that each side is comprised of 2 10 ft sections, with a pair of 10 foot sections comprising the smaller interior compartment, that's sitting at about 12000 hit points for the smallest possible starship (with a hardness of 35, and whatever effect the gm decides to represent the ships shields and armour upgrades)
10:1 is an incredibly conservative ration. 600-1000:1 is far more consistent with the data that is available
A particularly large starship/vehicle, when boarded, is then treated as a structure and uses stats for the interior, such as walls, doors etc. This is taken from page 272 of the core rule book.
However, it says starships are treated as an object when attacked. It explicitly says that structures are not objects, so you don't use rules for structures when attacking a starship.
There are no explicit rules for attacking starships - I was just using the rules for attacking starship bulkheads to extrapolate how much HP a starship could have based on the only thing in the book that assigns HP to starship components. Until there is a better point of reference that is the most realistic way to do it.
It also seems consistent with how much damage starship weapons do when targeted at ground targets (one of the lowest level starship weapons does 60d4 damage to ground targets, so 12k HP for something that can survive multiple shots from that weapon seems fairly reasonable)
I actually recently did the maths for this based on the statistics for starship bulkheads and interiors in the core rulebook - a 10 ft by 10 ft section of wall (starship bulkhead) has 2,400 hit points, while a similar sized section of interior has 1,440 hit points.
Assuming the smallest possible starship (tiny starships bottom out at 20 ft long) and that each side is comprised of 2 10 ft sections, with a pair of 10 foot sections comprising the smaller interior compartment, that's sitting at about 12000 hit points for the smallest possible starship (with a hardness of 35, and whatever effect the gm decides to represent the ships shields and armour upgrades)
10:1 is an incredibly conservative ration. 600-1000:1 is far more consistent with the data that is available
A particularly large starship/vehicle, when boarded, is then treated as a structure and uses stats for the interior, such as walls, doors etc. This is taken from page 272 of the core rule book.
However, it says starships are treated as an object when attacked. It explicitly says that structures are not objects, so you don't use rules for structures when attacking a starship.
There are no explicit rules for attacking starships - I was just using the rules for attacking starship bulkheads to extrapolate how much HP a starship could have based on the only thing in the book that assigns HP to starship components. Until there is a better point of reference that is the most realistic way to do it.
It also seems consistent with how much damage starship weapons do when targeted at ground targets (one of the lowest level starship weapons does 60d4 damage to ground targets, so 12k HP for something that can survive multiple shots from that weapon seems fairly reasonable)
Your example isn't consistent or realistic at all. By your numbers, even the smallest and weakest starship can survive five successful attacks from a Antimatter Mega Missile Launcher, which is equivalent to an average of 1,100 hull points of damage.
The explicit rule for attacking a starship is that it's treated as an object. However, the GM makes the object since no further rules are provided. Objects do not use rules for structures, unless boarded, as explained on page 272 of the CRB. It's more about putting the ship out of commission rather than destroying every wall of the ship.
In my opinion, treating a starship as an object, like a vehicle, is much more reasonable, in both gameplay and fluff. It seems logical that sizeable atmospheric vehicles with mounted weapons like rail cannons or missile launchers would be able to threaten a starship, to me.