Standard drives.
- Thread starter Sigtrygg
- Start date
Sigtrygg said:
For J drive letter there is no TL requirement. The TL requirement is for the Jump level produced.
Example. Jump drive B produces Jump 4 when used in a 100 ton hull. If the world is TL 10 it can't manufacture a "B" jump drive for a 100 ton ship. That's what I meant when I said that the Letter designation is an abstraction. That same world could build a Jump Drive "B" for an 800 ton ship...
Sigtrygg said:
No. They are an abstraction for the ship you are currently discussing. A "B" jump drive for a 600 ton ship isn't the same piece of equipment (physical object) as a "B" J-drive for a 100 ton ship.
Sigtrygg said:
First, look up the TL requirements for J-drive performance (btw, for Grav M-drive, the min TL is found on the TL overall TL progression description. Not the HG M-drive TL table as they assume you might be using a Chemical M-Drive and thus starts at TL 7 I believe) to determine the max J number that the planet can produce. Find the J drive Letter that produces that Jump level for the Hull you are using. From that tonnage/price data you can apply TL mods.
Sigtrygg said:
If I'm understanding your question correctly:
Jump 1 - TL9
Jump 2 - TL10
Jump 3 - TL11
Jump 4 - TL12
Jump 5 - TL13
Jump 6 - TL14
You can cross-reference your drives using that to get the minimum TL needed to build a specific jump engine type. I'm not aware of any PP or M-drive limitations in a similar vein though.
Sigtrygg
Emperor Mongoose
Nope, I am after the TL of the standard drives like the one that was in CT.
A-D TL9
E-H Tl10 etc.
and I wondered if there is a similar table for the small ship letter drives introduced in HG.
I can't see how to use the drive reduction due to TL table in HG if I don't know the TL - the one that gives a tonnage discount or penalty depending on building bellow or above standard TL.
Looking at those rules again I've noticed that it says the ships built using the core book are assumed to be TL12, so does that make all the stander drives TL12? Is a smallcraft sZ m-drive TL12?
A-D TL9
E-H Tl10 etc.
and I wondered if there is a similar table for the small ship letter drives introduced in HG.
I can't see how to use the drive reduction due to TL table in HG if I don't know the TL - the one that gives a tonnage discount or penalty depending on building bellow or above standard TL.
Looking at those rules again I've noticed that it says the ships built using the core book are assumed to be TL12, so does that make all the stander drives TL12? Is a smallcraft sZ m-drive TL12?
GypsyComet
Emperor Mongoose
The Letter drives are assumed to be around TL12 regardless of potential (High Guard, p52), while the custom percentage drives used in capital hulls are built at the TL they need to be for that ship.
The computer and software to run the jump drive will be more specific.
The computer and software to run the jump drive will be more specific.
GypsyComet
Emperor Mongoose
You have to have the right controllers to get those potentials, and the controllers come from the necessary TL. The drive is just a drive, at least within the context of the Third Imperium. Standard Package Drives, which the section in High Guard about primitive and advanced components says default to TL12 for their construction. As such, to answer Syg's original question, assume that the baseline Letter drives are TL12, and adjust up or down from there with the High Guard rule for primitive and advanced components. You still can't get more performance out of a jump drive than the TL of your computer and software, and the TL of the Hull can be treated as the limiter for Maneuver drives.
If you are homebrewing, the thousand year old Standard Drive Packages don't necessarily apply, and you will need to build at the TL called for by the Potential you want. In that context, or if you don't like the idea of standardized technology in a culture that has been spacefaring for 11,000 years, then F33D's approach is the correct one. Capital ships use it regardless since they do not use standard drives but custom build for every class.
If you are homebrewing, the thousand year old Standard Drive Packages don't necessarily apply, and you will need to build at the TL called for by the Potential you want. In that context, or if you don't like the idea of standardized technology in a culture that has been spacefaring for 11,000 years, then F33D's approach is the correct one. Capital ships use it regardless since they do not use standard drives but custom build for every class.
What I had posted previously used to be considered canon for the Traveller universe. We all know that MG has changed things. So I went back to the rules and pulled out the relevant information to share.
According to the Core Rulebook, there is no TL limitation for any of the components listed. But there in order to utilize a jump-6 drive, you must be at TL-14, where the computer becomes available that can calculate that. The other jump numbers don't specifically correspond to the original TL restrictions placed upon the drive unit themselves.
By the Core rulebook, Model1 computers are available at TL-7, and with no limitation on fusion power plants, you could build a Free Trader. Though the basic sensor systems start at TL-8, so you'd be flying blind....
I think what happened here was that this slipped through the, ahem, "review" process and the continuity issues were not caught.
Now High Guard, on p53, does list TL's associated with all of the drives. Here's the breakdown:
M-drive 1 or 2: TL7
M-drive 3 to 5: TL8
M-drive 6: TL9
J-drive 1: TL9
J-drive 2: TL11
J-drive 3: TL12
J-drive 4: TL13
J-drive 5: TL14
J-drive 6: TL15
Fusion power plants start at TL8. For them, TL 8-10 they mass 125% of normal, TL11-14 they mass 100% of normal, and TL15 they mass 75% of normal (And costs are changed too).
Using the rules you can get the component one TL below the list, but at a cost penalty.
And keep in mind these rules are different than previous canon. So use the TL that you like for your gaming universe.
According to the Core Rulebook, there is no TL limitation for any of the components listed. But there in order to utilize a jump-6 drive, you must be at TL-14, where the computer becomes available that can calculate that. The other jump numbers don't specifically correspond to the original TL restrictions placed upon the drive unit themselves.
By the Core rulebook, Model1 computers are available at TL-7, and with no limitation on fusion power plants, you could build a Free Trader. Though the basic sensor systems start at TL-8, so you'd be flying blind....
I think what happened here was that this slipped through the, ahem, "review" process and the continuity issues were not caught.
Now High Guard, on p53, does list TL's associated with all of the drives. Here's the breakdown:
M-drive 1 or 2: TL7
M-drive 3 to 5: TL8
M-drive 6: TL9
J-drive 1: TL9
J-drive 2: TL11
J-drive 3: TL12
J-drive 4: TL13
J-drive 5: TL14
J-drive 6: TL15
Fusion power plants start at TL8. For them, TL 8-10 they mass 125% of normal, TL11-14 they mass 100% of normal, and TL15 they mass 75% of normal (And costs are changed too).
Using the rules you can get the component one TL below the list, but at a cost penalty.
And keep in mind these rules are different than previous canon. So use the TL that you like for your gaming universe.
GypsyComet
Emperor Mongoose
Also see Core Rulebook p 113. Specifically, the TL of the jump control software.
GypsyComet
Emperor Mongoose
If you don't have the comp for the equations, developing the equations gets a lot harder...
