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-   -   Mixing Low-Tech armour rules with Ultra-Tech materials? (https://forums.sjgames.com/showthread.php?t=76292)

Sam Baughn 01-12-2011 05:04 PM

Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Has anyone written up the various armour materials from Ultra-Tech (or High-Tech for that matter) in the format used in Low-Tech yet? Or worked out a formula to convert them at least?

lexington 01-12-2011 05:13 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by Perfect Organism (Post 1105402)
Has anyone written up the various armour materials from Ultra-Tech (or High-Tech for that matter) in the format used in Low-Tech yet? Or worked out a formula to convert them at least?

Ultra-Tech has a great tailoring system in it, what elements of the Low-Tech system are you looking for?

Jonas 01-12-2011 07:22 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by lexington (Post 1105406)
Ultra-Tech has a great tailoring system in it, what elements of the Low-Tech system are you looking for?

I think he means using Low Techs armor table with the materials used in Ultra Techs armors.

Tema69 01-14-2011 12:54 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
While I don't know what OP is asking about, I was wondering about the Armour Quality rules of LT, and how to adapt them to UT? Could I get my Combat Hardsuit tailored? Or my Commando Battlesuit? Because that'd be awesome :P

Kalzazz 01-14-2011 02:23 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Hmmmm, Low Tech armor weighs Torso x3.05

Ultra Tech weighs Torso x4

Any idea the difference?

Tyneras 01-14-2011 03:52 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Isn't the definition of what the "Torso" is different in LT and UT? I think some locations changed in LT, but no books with me at the moment.

Anthony 01-14-2011 04:21 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by Kalzazz (Post 1106500)
Hmmmm, Low Tech armor weighs Torso x3.05

Ultra Tech weighs Torso x4

Any idea the difference?

What low tech calls 'torso' armor ultra-tech calls 'torso + groin' armor. Using comparable weights (20 lb full suit in UT, 7 lb torso armor in LT)
Skull: UT says 1 lb, LT says 1.4 lb
Face: UT says 1 lb, LT says 0.7 lb
Head: UT says 2 lb, LT says 2.1 lb
Neck: UT says 0.5 lb, LT says 0.35 lb
Torso: UT says 7 lb, LT says 7 lb
Chest: UT says 5 lb, LT says 5.25 lb
Abdomen (Groin in UT): UT says 2 lb, LT says 1.75 lb
Arms: UT says 2.5 lb, LT says 3.5 lb
Hands: UT says 1 lb, LT says 0.7 lb
Legs: UT says 5 lb, LT says 7 lb
Feet: UT says 2 lb, LT says 0.7 lb
Total: UT says 20 lb, LT says 21.35 lb.

Much of this is just rounding, though UT weights are notably low for many armor types (a TL 9 reflex vest has an areal density of 0.4 lb/sf, which is less than half the weight of a TL 8 level IIIa vest that provides similar protection).

Michael Thayne 01-14-2011 04:42 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
While we're at it, does anyone see any problems with combining the rules in High-Tech for high-tech versions of low-tech armors with the armor rules and stats in Low-Tech?

Tyneras 01-14-2011 04:55 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
That is one thing I wondered about. In LT, armor defends itself from damage at DR-1, so a DR 5 chest plate defends itself from damage with DR 4, which is good for the DR numbers and granularity at that scale. But what about UT armor, with DR 100 or more? Does it defend itself with DR 99? or is the DR-1 a result of the small numbers, and would it be more accurate to be something like 90% of DR (at LT armor values, that would round off to DR-1)?

jacobmuller 01-14-2011 05:07 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by Kalzazz (Post 1106500)
Hmmmm, Low Tech armor weighs Torso x3.05
Ultra Tech weighs Torso x4
Any idea the difference?

UT is more like 2.86... Torso plus Groin vs 1.
And LT isn't 3.05, it's 2.85. The Hands/Legs 10% is only for separate hands/legs.
As I fell asleep I realised the Arm and Leg breakdowns make more sense as Shoulder 10/ Upper arm 10/ elbow 5/ forearm 15/ hand 10 and thigh 45/ knee 5/ shin 40/ foot 10.

But re OP: nope, I ain't done that yet. It might be nice to do it and get a (is it) Dan Howard(?)-ish UT booklet of typical suits.

Kalzazz 01-14-2011 08:13 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Technomancer suggests for things like Fortify increase DR by 5% if DR is greater than 20

I think Id use 10% though, and lower by 10% for cheap

So Hardened Commando Battlesuit DR 115, Cheap 95

And modify ST bonuses etc the same

benz72 01-14-2011 11:38 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
It would be really nice to see an integrated approach to this.

LT, HT, UT all using the same rules (percentage based for scale, with notes about how low level granularity rounds out). I think it would help make the 'Universal' label more accurate.

DemiBenson 01-15-2011 12:07 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by benz72 (Post 1106885)
It would be really nice to see an integrated approach to this.

LT, HT, UT all using the same rules (percentage based for scale, with notes about how low level granularity rounds out). I think it would help make the 'Universal' label more accurate.

I'd love to see that. I'm working on one combining LT and MA locations, but it never occurred to me to mix in UT.

lexington 01-15-2011 12:17 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by benz72 (Post 1106885)
It would be really nice to see an integrated approach to this.

LT, HT, UT all using the same rules (percentage based for scale, with notes about how low level granularity rounds out). I think it would help make the 'Universal' label more accurate.

Absolutely. Seems like it would be an incredible amount of work, though.

jacobmuller 01-15-2011 01:44 PM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
armour per location: LowTech compared to Ultratech
It ain't perfect but you can see that the two charts published involved rounding of numbers: it makes them easier to use.
Code:

Location        LT        UT        UT as LT%        Houserule LT%/ UT fraction       
HEAD                30%        -        -                30%/ 0.105
Skull                [20%]        0.05        14%                        [17%/ 0.06]
Face                [10%]        0.05        14%                        [13%/ 0.045]
NECK                5%        0.025        7%                6%/ 0.02
TORSO                100%        -        -                100%/ 0.35
Chest                [75%]        0.25        71%                        [70%/ 0.245]               
Abdomen                [25%]        -        -                        [30%/ 0.105]
{groin}                {5%}        0.10        29%                        {5%/ 0.0175}
ARMS                50%        0.125        36%                50%/ 0.175
Shoulders        [10%]        -        -                        [10%/ 0.035]
Upper arm        [10%]        -        -                        [10%/ 0.035]
Elbow                [5%]        -        -                        [5%/ 0.0175]
Forearm                [25%]        -        -                        [15%/ 0.0525]
HANDS                10%        0.05        14%                        [10%/ 0.035]
LEGS                100%        0.25        71%                100%/ 0.35
Thighs                [45%]        -        -                        [45%/ 0.1575]
Knees                [5%]        -        -                        [5%/ 0.0175]
Shins                [50%]        -        -                        [35%/ 0.1225]
FEET                10%        0.10        29%                        [15%/ 0.0525]               
TOTAL                305%        1.00        285%                286%/ 1


jacobmuller 01-16-2011 03:25 AM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Sorry, out walking the dogs and realised I'd left a lot out:0
The chart above cannot be used for Low-Tech: the sum of the parts must be greater than the whole; each separate part needs an attachment point, ties and straps, and that all adds up. 305% instead of 28#%.
Ultratech clothing can be a single piece of cloth, eg a boiler suit with a zip front and an attached hood.

The numbers in the chart reflect the surface area to be covered but don't allow for attachments or crossover, eg my sweater covers my arms to the wrist and my gloves cover my wrists and my overcoat covers my wrists: sitting here waiting to go to work I have 4 layers of cloth over my abdomen, one on my legs and arms, two on my chest and shoulders. A chain hauberk that covers torso and arms can be a single piece 140% but chain arms to wear with a plate "chest" will be more than 40%; so, as LT has it, 50% is perfectly logical. UT and LT do match but LT allows for straps.

jacobmuller 01-16-2011 04:42 AM

Re: Mixing Low-Tech armour rules with Ultra-Tech materials?
 
Quote:

Originally Posted by Perfect Organism (Post 1105402)
Has anyone written up the various armour materials from Ultra-Tech (or High-Tech for that matter) in the format used in Low-Tech yet? Or worked out a formula to convert them at least?

Howzat
Code:

TL        Type                $        Wgt        Notes
9-11        Ballistic        420        2.8        p172
9-10        Ablative        420        2.8        p173
9        Reflective        140        0.9        p173
11^        Retro Reflec        1,400        0.9        p173
10        Bioplas                870        1.5        p174
12        Energy cloth        965        2.9        p175

I've left out the actual notes and DR. It's all in UT at the pages given above.
Don time should be no more than 15, as for a chain vest, and should probably be less, nothing to tie or maybe just a snap-stud/ zipper?


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