Demolition machines (ST and damage)?

Maz · 01-15-2018, 03:44 PM

Does anyone have any idea for some rough numbers for ST and damage of a few big demolition machines?

Like how hard could these grip someone? If a PC was grabbed by one of these, what ST would they have to roll against to escape? How much damage could it deal by crushing someone in it's grip. Two examples:
https://www.kobelco-europe.com/wp-co...2017/09/01.jpg

https://commons.wikimedia.org/wiki/F...191194922).jpg
(also relevant how much DR and HP would the arm of such machines have?)

What sort of damage would this do if a PC was underneath the piledriver: https://www.liebherr.com/en/rou/prod...ls/lrh100.html

Also, how much damage would a classical wrecking ball do?
How much damage would you need to deal to the chain holding the ball for it to break (snap)?

None of these machines are fast, nimble or accurate against a moving target. But the PC might be held by other means, or be unconscious. So that's less of an issue.

Maz · 01-15-2018, 04:03 PM

Btw. how about one of these? http://www.genscoequip.com/portable-...-cutting-tools

It says it has a cut force of 35 tonnes... what do that translate to in GURPS terms? How big a powerarmour could that cut through? assuming the person wasn't resisting?

Maz · 01-16-2018, 01:21 PM

Noone?

well I guess I'll just make some some numbers up that match what I need to be a danger to a powerarmour.

mr beer · 01-16-2018, 03:23 PM

No idea about ST ratings for industrial machinery. You could maybe find out how much the entire machine weighs and then base the ST directly off that.

Portable cutting tools should do Corrosive damage type to model gradually getting through the item. I think High Tech has similar tools in it.

Anaraxes · 01-16-2018, 03:28 PM

If you look up the specs for the machines, you might work their lifting capacity backwards to a ST rating.

(Strictly not really the same, since they're not built for quick strikes, so you can argue about whether it's Lifting ST or Arm St or just ST. But it's a place to start.)

Anthony · 01-16-2018, 03:45 PM

Some quick searching around gave me estimates of 50-100 ST for typical backhoe arms, that particular pincer device I wasn't able to find easily but they're all the same basic arm type.

Maz · 01-17-2018, 02:14 PM

Oh, nice, thanks for the help!

Quote:

Originally Posted by mr beer

No idea about ST ratings for industrial machinery. You could maybe find out how much the entire machine weighs and then base the ST directly off that.

Well now I feel stupid. That's a good place to start! Lets see...
I can find the HP using the formula on p.558.
An average excavater has an operational weight of 45,660kg -> 100,664lbs which become 186 HP.

Oh! I just found another site that actually list lift to about 34,000 lbs lift. This seems to match the above. That's higher than I thought.

01-15-2018, 03:44 PM	#1
Maz Join Date: Aug 2005 Location: Denmark	Demolition machines (ST and damage)? Does anyone have any idea for some rough numbers for ST and damage of a few big demolition machines? Like how hard could these grip someone? If a PC was grabbed by one of these, what ST would they have to roll against to escape? How much damage could it deal by crushing someone in it's grip. Two examples: https://www.kobelco-europe.com/wp-co...2017/09/01.jpg https://commons.wikimedia.org/wiki/F...191194922).jpg (also relevant how much DR and HP would the arm of such machines have?) What sort of damage would this do if a PC was underneath the piledriver: https://www.liebherr.com/en/rou/prod...ls/lrh100.html Also, how much damage would a classical wrecking ball do? How much damage would you need to deal to the chain holding the ball for it to break (snap)? None of these machines are fast, nimble or accurate against a moving target. But the PC might be held by other means, or be unconscious. So that's less of an issue.

01-15-2018, 04:03 PM	#2
Maz Join Date: Aug 2005 Location: Denmark	Re: Demolition machines (ST and damage)? Btw. how about one of these? http://www.genscoequip.com/portable-...-cutting-tools It says it has a cut force of 35 tonnes... what do that translate to in GURPS terms? How big a powerarmour could that cut through? assuming the person wasn't resisting?

01-16-2018, 01:21 PM	#3
Maz Join Date: Aug 2005 Location: Denmark	Re: Demolition machines (ST and damage)? Noone? well I guess I'll just make some some numbers up that match what I need to be a danger to a powerarmour.

01-16-2018, 03:23 PM	#4
mr beer Join Date: Mar 2013	Re: Demolition machines (ST and damage)? No idea about ST ratings for industrial machinery. You could maybe find out how much the entire machine weighs and then base the ST directly off that. Portable cutting tools should do Corrosive damage type to model gradually getting through the item. I think High Tech has similar tools in it.

01-16-2018, 03:28 PM	#5
Anaraxes Join Date: Sep 2007	Re: Demolition machines (ST and damage)? If you look up the specs for the machines, you might work their lifting capacity backwards to a ST rating. (Strictly not really the same, since they're not built for quick strikes, so you can argue about whether it's Lifting ST or Arm St or just ST. But it's a place to start.)

01-16-2018, 03:45 PM	#6
Anthony Join Date: Feb 2005 Location: Berkeley, CA	Re: Demolition machines (ST and damage)? Some quick searching around gave me estimates of 50-100 ST for typical backhoe arms, that particular pincer device I wasn't able to find easily but they're all the same basic arm type. __________________ My GURPS site and Blog.