Here's something I worked on a while back. I was reminded of it by a recent post. I thought I might go back and finish it, but first I'd like to hear what you guys think of it.
HG-compatible Book 2 type ship construction rules.
Note: Only changes to original rules listed.
Ship Design and Construction
REQUIRED STARSHIP COMPONENTS
[First three paragraphs unchanged].
Hulls vary in their requirements for drive and power plant based on tonnage. Any specific drive will be less efficient as the tonnage it must drive increases. The drive potential tables lists up to 24 standard drive types, identified by the letters A through Z (omitting I and O to avoid confusion with the numerals 1 and 0). Also listed are various tonnage levels for hulls; any tonnage which exceeds a listed level should be read as the next higher level. Correlating hull size with drive letter indicates drive potential. For maneuver drives, this potential is the Gs of acceleration available. For jump drives, the potential is the jump number (Jn) or jump range in parsecs. For power plants, it is power plant rating (Pn). For instance, a 200-ton hull equipped with maneuver drive-B can produce 1-G acceleration; an 800-ton hull equipped with jump drive-K can produce jump-2.
Shipyards on high-population worlds have a number of standard designs for hulls and components available. Such standard designs can be produced faster and at lower costs than custom designs.
Jump drive, maneuver drive and power plant tables.
The following restrictions apply based on TL: At TL 9 and 10, only jump-1 drives may be built; at TL 11, only jump-1 and jump-2 drives may be built; at TL 12, only jump-1 through jump-3 may be built; at TL 13, only jump-1 through jump-4 may be built; at TL 14, only jump-1 through jump-5 may be built; at TL 15, jump-1 through jump-6 may be built.
At TL 13 and 14, power plant tonnage and cost are reduced by one third; at TL 15, they're reduced by another third (E.g. a power plant-A masses 2 tons and costs MCr6 at TL 13 and 14; it masses 1 T and costs MCr3 at TL 15).
Jump Drive potential
Note: A jump drive of high potential installed in a big hull will perform at the indicated lower level. The reverse is not true. A jump-1 drive installed in a smaller ship will still only perform jump-1.
Maneuver Drive potential
Note that some drives are bigger than needed to produce the indicated effect. If you want a drive that fits perfectly, you may need to have it custom-made.
Power Plant potential
The power plant must be able to produce an effect at least equal to the jump drive or the maneuver drive, whichever is the highest, e.g. a ship with 2G and jump-1 needs a power plant with an effect of 2 or more, and so does a ship with 1G and jump-2.
If you want to be able to use the maneuver drive and energy weapons at the same time, the power plant must have a higher effect than the maneuver drive level. (For every level the power plant exceeds the maneuver drive, you get power points equivalent to the ship's tonnage in hundreds, e.g. a 400 T ship gets 4 excess power points for every extra level).
Note that some plants are bigger than needed to produce the indicated effect. If you want a plant that fits perfectly, you may need to have it custom-made.
Any comments?
Hans
PS. If anyone wants to take over and use any or all of this for anything official, you have my complete and total permision to do so. (IMO you shouldn't need the permission of anyone working in sombody else's universe to use his stuff. Such permission should be implicit in him working in that setting in the first place. But I know you may (need permission, I mean), so it is hereby given.)
HG-compatible Book 2 type ship construction rules.
Note: Only changes to original rules listed.
Ship Design and Construction
REQUIRED STARSHIP COMPONENTS
[First three paragraphs unchanged].
Hulls vary in their requirements for drive and power plant based on tonnage. Any specific drive will be less efficient as the tonnage it must drive increases. The drive potential tables lists up to 24 standard drive types, identified by the letters A through Z (omitting I and O to avoid confusion with the numerals 1 and 0). Also listed are various tonnage levels for hulls; any tonnage which exceeds a listed level should be read as the next higher level. Correlating hull size with drive letter indicates drive potential. For maneuver drives, this potential is the Gs of acceleration available. For jump drives, the potential is the jump number (Jn) or jump range in parsecs. For power plants, it is power plant rating (Pn). For instance, a 200-ton hull equipped with maneuver drive-B can produce 1-G acceleration; an 800-ton hull equipped with jump drive-K can produce jump-2.
Shipyards on high-population worlds have a number of standard designs for hulls and components available. Such standard designs can be produced faster and at lower costs than custom designs.
Jump drive, maneuver drive and power plant tables.
Code:
Jump Maneuver Power
Drive Drive Plant
Mass MCr Mass MCr Mass MCr
A 2 8 2 1 3 9
B 3 12 4 2 6 18
C 4 16 5 2.5 9 27
D 6 24 8 4 12 36
E 8 32 10 5 18 54
F 12 48 12 6 24 72
G 16 64 16 8 30 90
H 18 72 20 10 36 108
J 20 80 30 15 48 144
K 24 96 32 16 54 162
L 30 120 40 20 60 180
M 32 128 48 24 72 216
N 40 160 50 25 90 270
P 60 240 60 30 120 360
Q 80 320 64 32 150 450
R 90 360 80 40 180 540
S 100 400 100 50 240 720
T 120 480 150 75 270 810
U 150 600 160 80 300 900
V 160 640 200 100 360 1080
W 200 800 240 120 450 1350
X - - 250 125 - -
Y - - 320 160 - -
Z - - 400 200 - -
The following restrictions apply based on TL: At TL 9 and 10, only jump-1 drives may be built; at TL 11, only jump-1 and jump-2 drives may be built; at TL 12, only jump-1 through jump-3 may be built; at TL 13, only jump-1 through jump-4 may be built; at TL 14, only jump-1 through jump-5 may be built; at TL 15, jump-1 through jump-6 may be built.
At TL 13 and 14, power plant tonnage and cost are reduced by one third; at TL 15, they're reduced by another third (E.g. a power plant-A masses 2 tons and costs MCr6 at TL 13 and 14; it masses 1 T and costs MCr3 at TL 15).
Jump Drive potential
Code:
Hull A B C D E F G H J K L M N P Q R S T U V W
tons
100 1 2 3 - - - - - - - - - - - - - - - - - -
200 - - 1 2 3 - - - - - - - - - - - - - - - -
400 - - - - 1 2 3 - - - - - - - - - - - - - -
600 - - - - - 1 1 2 2 3 - - - - - - - - - - -
800 - - - - - - 1 1 1 2 2 3 - - - - - - - - -
1000 - - - - - - - - 1 1 2 2 3 - - - - - - - -
2000 - - - - - - - - - - - - 1 2 3 - - - - - -
3000 - - - - - - - - - - - - - 1 1 2 2 3 - - -
4000 - - - - - - - - - - - - - - 1 1 1 2 2 3 -
5000 - - - - - - - - - - - - - - - - 1 1 2 2 3
Note: A jump drive of high potential installed in a big hull will perform at the indicated lower level. The reverse is not true. A jump-1 drive installed in a smaller ship will still only perform jump-1.
Maneuver Drive potential
Code:
Hull A B C D E F G H J K L M N P Q R S T U V W X Y Z
tons
100 1 1 2 3 3 4 5 6 - - - - - - - - - - - - - - - -
200 - 1 1 1 2 2 3 3 4 4 5 6 - - - - - - - - - - - -
400 - - - 1 1 1 1 2 2 3 3 4 4 5 5 6 - - - - - - - -
600 - - - - - 1 1 1 2 2 2 3 3 3 3 4 5 6 - - - - - -
800 - - - - - - 1 1 1 1 2 2 2 2 3 3 4 6 - - - - - -
1000 - - - - - - - 1 1 1 1 1 2 2 2 3 3 5 5 5 6 - - -
2000 - - - - - - - - - - 1 1 1 1 1 1 2 2 3 3 4 4 5 6
3000 - - - - - - - - - - - - - 1 1 1 1 2 2 2 3 3 3 4
4000 - - - - - - - - - - - - - - - 1 1 1 1 2 2 2 3 3
5000 - - - - - - - - - - - - - - - - 1 1 1 1 1 2 2 3
Power Plant potential
Code:
Hull A B C D E F G H J K L M N P Q R S T U V W
tons
100 1 2 3 4 6 8 10 12 16 18 20 - - - - - - - - - -
200 - 1 1 2 3 4 5 6 8 9 10 12 15 20 - - - - - - -
400 - - - 1 1 2 2 3 4 4 5 6 7 10 12 15 20 - - - -
600 - - - - 1 1 1 2 2 3 3 4 5 6 8 10 13 15 16 20 -
800 - - - - - 1 1 1 2 2 2 3 3 5 6 7 10 11 12 15 18
1000 - - - - - - 1 1 1 1 2 2 3 4 5 6 8 9 10 12 15
2000 - - - - - - - - - - 1 1 1 2 2 3 4 4 5 6 7
3000 - - - - - - - - - - - - 1 1 1 2 2 3 3 4 5
4000 - - - - - - - - - - - - - 1 1 1 2 2 2 3 3
5000 - - - - - - - - - - - - - - 1 1 1 1 2 2 3
The power plant must be able to produce an effect at least equal to the jump drive or the maneuver drive, whichever is the highest, e.g. a ship with 2G and jump-1 needs a power plant with an effect of 2 or more, and so does a ship with 1G and jump-2.
If you want to be able to use the maneuver drive and energy weapons at the same time, the power plant must have a higher effect than the maneuver drive level. (For every level the power plant exceeds the maneuver drive, you get power points equivalent to the ship's tonnage in hundreds, e.g. a 400 T ship gets 4 excess power points for every extra level).
Note that some plants are bigger than needed to produce the indicated effect. If you want a plant that fits perfectly, you may need to have it custom-made.
Any comments?
Hans
PS. If anyone wants to take over and use any or all of this for anything official, you have my complete and total permision to do so. (IMO you shouldn't need the permission of anyone working in sombody else's universe to use his stuff. Such permission should be implicit in him working in that setting in the first place. But I know you may (need permission, I mean), so it is hereby given.)