Steve Jackson Games - Site Navigation
Home General Info Follow Us Search Illuminator Store Forums What's New Other Games Ogre GURPS Munchkin Our Games: Home

Go Back   Steve Jackson Games Forums > Roleplaying > GURPS

Reply
 
Thread Tools Display Modes
Old 05-06-2013, 04:45 PM   #1
DippyTTO
 
Join Date: Aug 2011
Default 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.
DippyTTO is offline   Reply With Quote
Old 05-06-2013, 04:51 PM   #2
sir_pudding
Wielder of Smart Pants
 
sir_pudding's Avatar
 
Join Date: Aug 2004
Location: Ventura CA
Default Re: Naval gun stats

Spaceships 7 has TL5-6 naval cannon, IIRC.
sir_pudding is offline   Reply With Quote
Old 05-06-2013, 05:02 PM   #3
DippyTTO
 
Join Date: Aug 2011
Default Re: Naval gun stats

Well, thank you, Sir Pudding. I will look into that.
DippyTTO is offline   Reply With Quote
Old 05-06-2013, 05:47 PM   #4
benz72
 
benz72's Avatar
 
Join Date: Oct 2006
Location: Chagrin Falls
Default 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.
__________________
Benundefined
Life has a funny way of making sure you decide to leave the party just a few minutes too late to avoid trouble.
benz72 is offline   Reply With Quote
Old 05-06-2013, 06:00 PM   #5
Ulzgoroth
 
Join Date: Jul 2008
Default 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.
__________________
I don't know any 3e, so there is no chance that I am talking about 3e rules by accident.
Ulzgoroth is offline   Reply With Quote
Old 05-06-2013, 06:03 PM   #6
DippyTTO
 
Join Date: Aug 2011
Default 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?
DippyTTO is offline   Reply With Quote
Old 05-06-2013, 06:09 PM   #7
DouglasCole
Doctor of GURPS Ballistics
 
DouglasCole's Avatar
 
Join Date: Sep 2004
Location: Lakeville, MN
Default Re: Naval gun stats

Quote:
Originally Posted by DippyTTO View Post
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?
Try here: http://forums.sjgames.com/showpost.p...22&postcount=1
__________________
My blog:Gaming Ballistic, LLC
My Store: Gaming Ballistic on Shopify
My Patreon: Gaming Ballistic on Patreon
DouglasCole is offline   Reply With Quote
Reply

Tags
airship, artillery

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Fnords are Off
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 05:56 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.