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 06-07-2016, 12:33 PM   #71
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 2
Regulus-class
Is listed as having
Hot Reactionless Engine (50G acceleration) and Move 50G/c

But Hot Reactionless engine only has 2G/c acceleration. So the engine is Super Reactionless not Hot Reactionless.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 06-14-2016, 05:41 PM   #72
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 3
Trinity-class

Has a single Fission Reactor providing one Power Point, but two high energy systems (Major Battery and Secondary Battery), so it should have a note saying it cannot operate both at same time. Alternatively upgrading the fission reactor to a Fusion reactor would solve the problem.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 10-22-2016, 03:58 PM   #73
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

The $4000/ton price of Jet fuel on spaceships p46 seems way too high.

Of course such values will depend on how plentiful such is in the setting but it is off by a factor of >10 compared to 2016 refinery prices. The monthly average refinery price of jet fuel/ton has varied from 350 to 450 usd. That corresponds to about 280 to 360 Gurps dollars. As comparison the prices for liquid hydrogen and rocket fuel seem about right for current prices.

So in a fairly plentiful oil scenario like current earth 1/10 of the price or $400 would seem fairly good approximation.

As a side note: The $400/ton would make the Molniya-class ramjet from spaceships 8 more reasonable. At $4000/ton the fuel cost would be almost $12000 each and yet the Transhuman space base book says that such transit costs $2000, so the $1200/passenger fuel cost would make it closer to that $2000 in total expected operating costs.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 10-23-2016, 01:44 PM   #74
munin
 
Join Date: Aug 2007
Location: Vermont, USA
Default Re: GURPS Starships line errata (and some observations)

Here's a weird errata. The Hull and Systems section (pSS1:5-6) starts off making sense, but then when you get to the next page it starts describing a notation system that isn't used in the books: system types are written in italics with the system number after it (so, tactical bridge [core]) with no mention of the systems being laid out in tabular fashion. Maybe they were originally written up in paragraph form and then changed to tables during layout without updating the explanation?

A paragraph layout is convenient for posting in forums, so I've adapted this errata for my own use (for example).
munin is offline   Reply With Quote
Old 10-29-2016, 11:07 AM   #75
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 8

The AKVs are noted as firing X-ray laser warheads as they do in the original TS. But they have 10cm/12cm electromagnetic guns and the X-Ray Laser Munitions rules on page 9 say "X-ray laser warheads are available for missiles and 16cm+ guns. "

So both cannot be right.

As reference:
In the original TS the AKVs and ships used 333mm coil gun bays that only used 1mw and weighted 0.16 tons empty/9.66 tons loaded.

In spaceship terms one such would equal 2 systems for the SM +6 AKVs and use about 1/2 power point while firing.

Also the 9.5 ton warheads from TS would not be usable in any small missiles(only about 96cm+) as the missile to bomb rules in SS4 say that the warhead is 1/3 the full missile size or any of the guns in Space ships as the heaviest fire apparently 4 ton warheads.

So the weapon in question has changed a lot from TS to SS8.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 10-31-2016, 02:39 PM   #76
wellspring
 
Join Date: Apr 2011
Default Re: GURPS Starships line errata (and some observations)

Quote:
Originally Posted by weby View Post
The $4000/ton price of Jet fuel on spaceships p46 seems way too high.

Of course such values will depend on how plentiful such is in the setting but it is off by a factor of >10 compared to 2016 refinery prices. The monthly average refinery price of jet fuel/ton has varied from 350 to 450 usd. That corresponds to about 280 to 360 Gurps dollars. As comparison the prices for liquid hydrogen and rocket fuel seem about right for current prices.

So in a fairly plentiful oil scenario like current earth 1/10 of the price or $400 would seem fairly good approximation.
I'd make it an even $1000 or even higher. Recall that $400 is the price at the refinery, ie prior to factoring in distribution costs. The normal rule of thumb if you don't know anything about an industry is to assume that each step in the distribution chain is x2 the price. That's true whether you have vertical integration or not, incidentally. In this case, it's the cost of transporting the fuel, a premium to cover loss and accident, and the carrying cost of safety stock to ensure that stock-outs are infrequent.

Your prices are correct at the refinery, but then I double-checked for prices in my state and the range of prices charged for general aviation are 1200 - 2300 depending on the airport. That's quite a range, and since I'm not a pilot maybe I'm mis-reading the data. (Src: https://www.airnav.com/fuel/local.html)

So at least as I read it, SS is off but not grossly so.
wellspring is offline   Reply With Quote
Old 01-05-2017, 04:26 PM   #77
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 3

Collision formula on page 32 seems to produce too high values. Collisions according to the formula do about 3.6 times the value they should do. Just use the Spaceships p.64 formula to fix.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 01-30-2017, 07:02 PM   #78
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 2
Baikonur

Baikonur Third Stage STV is listed as TL 8, but has control room computer and sensors calculated as TL7 and has no other components that are above TL 7, so should likely be TL 7.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 02-22-2017, 04:29 AM   #79
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 2
Condor Spaceplane

Has listed airspeed of 2450mph, but at 3 modules of 0.5g each it should be 3100mph
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Old 03-31-2017, 01:53 PM   #80
weby
 
weby's Avatar
 
Join Date: Oct 2008
Default Re: GURPS Starships line errata (and some observations)

Spaceships 2
Regulus-class

Has seven 500 ton Cargo Holds, 200 tons cargo in the Secondary Battery, 200 tons cargo in Habitat, a 300 ton Hangar Bay and 28 people for a total load of 4202.8 tons not the listed 3,142.8 tons.
__________________
--
weby's gaming stuff: http://weby.roto.nu
weby is offline   Reply With Quote
Reply

Tags
spaceships

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 04:18 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.