05-06-2013, 04:45 PM | #1 |
Join Date: Aug 2011
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Naval gun stats
I'm trying to create a dreadnought/battleship-style airship. Are there any GURPS resources that have stats for naval artillery? Even something as simple as a formula for damage based on the size of the shell and the size of the barrel would be nice, as it would allow me to create my own guns, customized to the individual classes of airships.
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05-06-2013, 04:51 PM | #2 |
Wielder of Smart Pants
Join Date: Aug 2004
Location: Ventura CA
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Re: Naval gun stats
Spaceships 7 has TL5-6 naval cannon, IIRC.
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05-06-2013, 05:02 PM | #3 |
Join Date: Aug 2011
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Re: Naval gun stats
Well, thank you, Sir Pudding. I will look into that.
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05-06-2013, 05:47 PM | #4 |
Join Date: Oct 2006
Location: Chagrin Falls
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Re: Naval gun stats
If this is some sort of fantasy/steampunk setting it should do whatever is genera appropriate.
For anything approaching 'realism' try using small field artillery from a compatible era with extremely limited magazine capacity and huge recoil penalties (but fantastic height of eye and a good range bonus based on altitude). I am presuming that if you are talking about flight you would be using breech loading gunnery. Muzzle loaded cannon aimed 'down' require wadding to keep the projectile from falling out.
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05-06-2013, 06:00 PM | #5 |
Join Date: Jul 2008
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Re: Naval gun stats
One thing that's reasonably feasible is assigning GURPS stats to historical guns that haven't been officially written up.
By combining Wikipedia and other web sources for ballistic information and shell filling data with Douglas Cole's formulae and the explosives rules, you should be able to get the damage figures. Weight is usually available likewise, cost often is not easily (but isn't very meaningful anyway). Max range can be figured from a little simple ballistics if you know how much elevation the gun permits. 1/2d range is trickier, I don't know how to work that out. Acc I'd go for giving numbers similar to whatever looks relatively appropriate in the High Tech weapon tables, primarily, because I don't have anything better. Most of what you'd usually call naval guns are Shots 1, rcl nobody-cares, ST too much M. The rcl stat is flat-out meaningless and I wouldn't bother with it. The ST one might be set as some function of weight if you think it's going to matter. The real trick is finding a good citation on what rate of fire was achievable to set the reload time.
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05-06-2013, 06:03 PM | #6 |
Join Date: Aug 2011
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Re: Naval gun stats
Benz, I am talking about breech-loaded gunnery, such as the 4"/50 caliber gun that was found on World War I-era destroyers.
And Ulzgoroth; where can I find these formulae that you mentioned? |
05-06-2013, 06:09 PM | #7 | |
Doctor of GURPS Ballistics
Join Date: Sep 2004
Location: Lakeville, MN
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Re: Naval gun stats
Quote:
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airship, artillery |
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