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Old March 3rd, 2014, 03:41 AM
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ArcaneFlash ArcaneFlash is offline
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Default Smallcraft Drive confusion?

I have been designing a number of small craft. I'm in the process of having to redesign the small craft section.

The reason is why a 100t smallcraft would ever choose a sZ engine at 19t equal to a K engine for a rating of 6, when it could use a size C engine at 5 tons.

Any ideas on the decrepancy?
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Old March 3rd, 2014, 08:45 AM
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Quote:
Originally Posted by ArcaneFlash View Post
I have been designing a number of small craft. I'm in the process of having to redesign the small craft section.

The reason is why a 100t smallcraft would ever choose a sZ engine at 19t equal to a K engine for a rating of 6, when it could use a size C engine at 5 tons.

Any ideas on the decrepancy?
Badly thought out by FEE.

Same question arises in HG2 vs CT Bk 2 Drives. Why a HG2 17dt M Drive in a 100dt hull rather than use a "C" Drive at 5dt...
Quote:
DESIGN AND CONSTRUCTION
The ship design and construction system given in Book 2 must be considered to be a standard system for providing ships using off-the-shelf components. It is not superceded by any system given in this book; instead this book presents a system for construction of very large vessels, and includes provisions for use of the system with smaller ships. - HG2 p18

Drives:
...It is possible to include standard drives (at standard prices) from Book 2 if they will otherwise meet the ship's requirements; such drives use fuel as indicated by the formulas in Book 2. - HG2 p22
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Old March 3rd, 2014, 10:30 AM
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I was originally going to post something similar, but saw this was under Mongoose Traveller ... so this was more like a case of Mongoose not seeing a need to 'fix' the Classic Traveller discrepancy.

The whole CT Smallcraft vs LBB2 tables vs High Guard formula makes me

and I didn't want to reopen that .

... but as long as it has been reopened:

[begin rant]
Good grief, is it really so hard to check the design rules where vehicles overlap since that is where cracks in the rules tend to show up first. I mean 1977 to 2014 ... how long does it take to figure out a solution. Heck, half the members on this board could come up with a working solution. Why didn't Mongoose fix it?
[end rant]

I feel better now.

[Just don't tell me it is a feature.]

Last edited by atpollard; March 4th, 2014 at 03:47 PM..
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Old March 3rd, 2014, 10:34 AM
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Quote:
Originally Posted by ArcaneFlash View Post
Any ideas on the discrepancy?
Ignore it.
Assume that you can use either the crapy big block engine or the more efficient small block engine ... and most reasonable people have chosen to use the smaller engine.

That's my idea.
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Old March 4th, 2014, 03:28 PM
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I took this Idea. M-Drive example:

sH = A, Both are 2 tons;
sR = B, both are 3 tons;
sZ = C, both are 5 tons.

I did the same with every engine and power plant and filled in the blanks of the smallcraft engine/power chart. It came out pretty well.
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Old March 5th, 2014, 09:58 AM
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Smallcraft sK grav drive is the most efficient engine.
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Old March 7th, 2014, 09:17 AM
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Perhaps I'm missing something but for your 100ton small craft, an sK engine gives you a thrust of 2 for 5 tons...

You need sX for thrust 6. 17 tons.

Someone clarify what went over my head? Thanks
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Old March 7th, 2014, 01:08 PM
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Quote:
Originally Posted by Nerhesi View Post
Perhaps I'm missing something but for your 100ton small craft, an sK engine gives you a thrust of 2 for 5 tons...

You need sX for thrust 6. 17 tons.

Someone clarify what went over my head? Thanks
Would THREE sK drives in a 100 dTon hull allow thrust 6?

If so, then
3 x 5 tons = 15 tons (sK, thrust 6)
and 1 x 17 tons = 17 tons (sX, thrust 6).

sK is a more volume efficient drive than sX.
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