Ship Design

[Libris]

I am about to embark on a massive (to me) ship designing spree but have some rather important issues.

Turrets

How heavy is a triple beam laser turret?
Or, more to the point, how much *internal* space does it take up. From what I can see it weighs (or rather takes up) one ton of internal space, same as a single beam laser.

In CT as far as I can determine a loaded turret takes up space equal to one mounted weapon. For example, a single pulse laser turret takes up one ton, a triple missile rack takes one ton and a mixed triple turret with missile rack and two lasers still takes up one ton. Of course, there is more cost and energy required. Similarly, a fusion gun only takes up two tons if it is a single or double mount.

Crew Couches
Presumably crew couches are only required if the crew of a small craft exceeds two.

Fuel

Fuel consumption for starship powerplants is quoted in four week amounts. Presumably it can be less?

Streamlining and Airframe

These add +1 and +2 to agility respectively. I assume this only applies for atmospheric combat.

 

[Libris]

Err, more questions/comments.

AirLocks. These appear to be assumed under bridge/control space in CT.

No bridge in small craft. If I remember correctly, High Guard allowed small craft without a bridge. Can this still be done?

 

[themink]

Starting from the Top -

Turrets - Turrets require an "internal" ton for supports and can mount upto 3 tons of weapons - so yes, it's a good exchange rate. You could mix those three tons as you like.

Fusion gun turrets take up twice as much internal volumn as "normal" ones. PA Barbetters are bigger again.

You can't mount fusion guns in "small" turrets or in Barbettes.

(I believe the above are a slight change from HG)

Turrets increase the "total" volume of a ship - so a 10 ton fighter which mounts a triple normal turret will probably be 13 tons "external" volume when you try and carry it aboard.

There are no supplied rules for fixed mounts (although they are easy to make up)

Turrets do not add to volume for Jump drive calculations.

Small craft controls have two seats for free - extras must be paid for.

Small craft must have both Controls and Computer (currently)

on page 275 it seems to change this by saying "IF a bridge is installed on the craft" - however this contradicts the rest of it so I ignored it.

Airlocks et al are part of the hull - have a smany as you want/need.

I've forgotted the other questions - I'll post & reply

The Above is my interpretation. Even if you agree with my interpretation, YTU may be different.

 

[themink]

air-frame. This increases your max speed in atmospheres.

without an airframe, crafts have to slow down to slow speeds in the atmosphere. The table on p261 gives the airframe top speeds - It doesn;t give max speeds of Fully/Partial streamlined.

Pulling figures out of the air, I would give partial streamlining a Mach 1 limit (call it 700 kph - but it varies a lot depending on the world).

I would give fully streamlined ships, when pedal to the floor in empty air, the same speed as an airframe when "Nape Of the Earth".

So interface fighters will/should shred a pure space fighter if they can entice them down where the air is thicker. This makes up for the 5% cost of Airframes.

Remember - the Adjust the rules to give answers that seem sensible to you and support the Traveller Universe you are building.

 

[sea_tyger]

Okay, a couple of questions of my own, since I've spent the last several years working with Fire Fusion and Steel and not having to worry about hardpoints, per se (or, if I was supposed to, I was been ignoring them ).

1. Can I install turret weapons without placing them in a hardpoint? For example, I have a TL 15 85-ton "paradestroyer" (a small strike escort designed to deploy from a fleet carrier) and want to mount twin USP 4 pulse lasers (12 units), plus twin USP 4 missile racks (12 units). Since an 85-ton craft is only allowed 1 hardpoint, is the above configuration possible?

More to follow....

 

[DrSkull]

Originally posted by The Mink:

Turrets increase the "total" volume of a ship - so a 10 ton fighter which mounts a triple normal turret will probably be 13 tons "external" volume when you try and carry it aboard.
.

Accck, What? They do?

 

[themink]

Originally posted by DrSkull:
</font><blockquote>quote:</font><hr />Originally posted by The Mink:

Turrets increase the "total" volume of a ship - so a 10 ton fighter which mounts a triple normal turret will probably be 13 tons "external" volume when you try and carry it aboard.
.

Accck, What? They do?</font>[/QUOTE]At least IMTU - I don;t know what canon is - but the fighter in the t20 book would say that I am wrong

 

[rancke]

Originally posted by The Mink:
</font><blockquote>quote:</font><hr />Originally posted by DrSkull:
</font><blockquote>quote:</font><hr />Originally posted by The Mink:

Turrets increase the "total" volume of a ship - so a 10 ton fighter which mounts a triple normal turret will probably be 13 tons "external" volume when you try and carry it aboard.
.

Accck, What? They do?</font>[/QUOTE]At least IMTU - I don;t know what canon is - but the fighter in the t20 book would say that I am wrong</font>[/QUOTE]There's been quite a heated fight on the GURPS Traveller boards about just that question. I belong to the faction that thinks that a 10 T fighter with a hardpoint actually has 9 T of internal space and room for a 1 T turret. Note that internal space is not a CT concept at all. In CT a 100 T hull with a turret had room for another 99 T worth of components while a 100 T hull without a turret had room for 100 T worth of components (Of course, by Book 2 rules it had to leave 1 of those 100 T unused if it had a hardpoint). They were otherwise identical.

Hans

 

[sea_tyger]

Just a note on streamlined and partially streamlined hull airspeeds: Page 261 lists the airspeeds under the "Hull Streamlining" header.

Streamline hullls are limited to 2-G's in the atmosphere (4700kph max), and partially streamlined hulls are limited to 1-G in the atmosphere (3500kph max).