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T5 Only: UWP, Trade codes, Ecotopes, and Climate?

maksimsmelchak

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UWP, Trade codes, Ecotopes, and Climate?

I have a question for the greater community:

*** How exactly does world classification work in regards to environment and climate using T5? What do you use? How do you figure it out? Which system do you prefer? Suggestions? Work arounds? Alternate ideas? ***

I have read the main rule book several times as well as Agent of the Imperium and other T5 materials.

The following codes exist and/or existed:
  • Co "Cold" * This is a cold world, with a climate of low temperatures.
  • Fe "Frozen" * This is a frozen world, with a climate of extremely low temperatures.
  • Hn "Hiver Normal" * This is world habitable by Hivers, but not considered a "garden world" paradise by their standards.
  • Ho "Hot" * This is a hot world, with a climate of high temperatures.
  • Hp "Hiver Prime" * This world is ideal for Hiver life, and is considered a "garden world" paradise by their standards.
  • Lk "Locked" * This is a tidally-locked world, which does not rotate as most planets do. It has one face locked to the gravity source, usually a star, and the other locked away from the gravity source, making for extremely warm weather on one side and cold extremes on the other.
  • Sa "Satellite" * It is a main world which is a satellite of either a gas giant or another world. A non-standard world...
  • Tp "Temperate" * This is a temperate world, with a climate of average temperatures.
  • Tr "Tropic" * This is a moist tropical world, with a climate of high temperatures.
  • Tu "Tundra" * This is a moist tundra world, with a climate of cold temperatures.
  • Tz "Twilight Zone" * The world is a "twilight zone", a planet that is tidally-locked to its primary world, giving a hot pole, a cold pole and a twilight zone in-between.

Please note that the codes are a mish mosh of official, unofficial, canon, not, and others in general use. Not just T5 codes. Or T5SS.

GURPS SPACE and TRAVELLER had a different set of temperature/climate codes.

It's tough to sort them since they have several descriptor classes:
  1. Ecotope (or environment) (De, Fl, He, Oc, Tr, Tu, Va, Wa, etc.)
  2. World markers (Ga, Hn, Hp, Va, etc.)
  3. System markers (Lk, Sa, Tz, etc.)
  4. Climate (temperature) markers (Co, Fr, Ho, Tp, Tr, Va, etc.)

And that's before we get to UWP, which accounts for atmosphere and planetary size, but not necessarily gravity or planet density. And, of course, the UWP includes hydrography and other factors not limited to what I mentioned.

Shalom,
Maksim-Smelchak.
 
Last edited by a moderator:
UWP, Trade codes, Ecotopes, and Climate?

I have a question for the greater community:

*** How exactly does world classification work in regards to environment and climate using T5? What do you use? How do you figure it out? Which system do you prefer? Suggestions? Work arounds? Alternate ideas? ***

I have T5.09, and I have waded through the World Classification system, and world building system. I am presently building a sector, and obviously rolling up worlds, at least some of them. As I am using some worlds from the works of H. Beam Piper, and some from the works of Andre Norton, I already have a pretty good idea as to what some of the worlds are going to look like. I also have an idea of what a world might look like based on some of the names that I will be using for the planets of a given sub-sector. I will be using the Classic Traveller system, and not worrying about all of the possible planets in a system, nor rolling in advance to figure out system primary star, mainworld orbit, or presence of a satellite.

Quite simply, I first roll up the world characteristics of size, atmosphere, and hydrographic percentage, and see if they work for me, and if they suggest any ideas about further classification. I look at where the world is in relation to the sub-sector and possible adjoining sub-sectors. Does the location give me an idea that the world must have some specific characteristics? If it is part of a cluster, then probably at least one world should have a Class A or Class B starport so as to allow for starship building. (Note, I allow Class B starports to build ships too.) I am pulling in a few ideas from Book 6-Scouts which also appear in T5.

And that's before we get to UWP, which accounts for atmosphere and planetary size, but not necessarily gravity or planet density. And, of course, the UWP includes hydrography and other factors not limited to what I mentioned.

Shalom,
Maksim-Smelchak.

For me, the UWP comes first, then population, then I think about the Starport and its size, and do I want the world to be High Tech Level or not. I am not going to die roll everything. Now, if someone takes Piper Sector and expands on a world, that is up to them.

As for World Names giving ideas, consider the following.

Palo Duro
Aegir
New Texas
New Britain (no, it is not what you think)
Megin-giord
Kelpie
Machu Picchu
Vinland
Sequoia
Pohjola
Portobello
 
Since this is T5 only, maybe you should ask the moderators to move it to either the T5 sub-forum or maybe the Lone Star?
 
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