High Guard...Flattened Sphere Hull?

Discuss the Traveller RPG and its many settings
Rerednaw
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High Guard...Flattened Sphere Hull?

Postby Rerednaw » Mon Oct 28, 2019 11:30 pm

I recall this config from my LBB....where are these (UFO discs) in Mongoose 2E? :mrgreen:
Reynard
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Re: High Guard...Flattened Sphere Hull?

Postby Reynard » Tue Oct 29, 2019 12:42 am

I consider that shape in the category of streamlined which isn't exclusive to the wedge.
Old School
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Re: High Guard...Flattened Sphere Hull?

Postby Old School » Tue Oct 29, 2019 12:54 am

I agree. Streamlined works fine for this.
Moppy
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Re: High Guard...Flattened Sphere Hull?

Postby Moppy » Tue Oct 29, 2019 1:29 am

Standard and sphere seem identical except one is cheaper. Am I missing errata?
AnotherDilbert
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Re: High Guard...Flattened Sphere Hull?

Postby AnotherDilbert » Tue Oct 29, 2019 2:56 am

Agreed with previous speakers; Streamlined is streamlined, regardless of shape.

Moppy wrote: Standard and sphere seem identical except one is cheaper. Am I missing errata?
No, you are not missing anything.

Standard configuration is just a default, you didn't really make a choice. It's a perfectly valid choice, but may not be optimal.

Configuration Sphere may have other disadvantages, such as difficulty making good deck plans.
Condottiere
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Re: High Guard...Flattened Sphere Hull?

Postby Condottiere » Tue Oct 29, 2019 3:08 am

Optimal armour thickness.
Moppy
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Re: High Guard...Flattened Sphere Hull?

Postby Moppy » Wed Oct 30, 2019 1:04 pm

Maybe in a different world, spinal mount length and armor values would be affected by hull configuration.
Condottiere
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Re: High Guard...Flattened Sphere Hull?

Postby Condottiere » Thu Oct 31, 2019 6:51 am

Image

Easily resolved.
Linwood
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Re: High Guard...Flattened Sphere Hull?

Postby Linwood » Thu Oct 31, 2019 10:36 am

Ummm - hair dryer?

:D
Reynard
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Re: High Guard...Flattened Sphere Hull?

Postby Reynard » Thu Oct 31, 2019 10:42 am

Oh please, deck plans!
Rerednaw
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Re: High Guard...Flattened Sphere Hull?

Postby Rerednaw » Fri Nov 01, 2019 2:24 pm

THAT’S NO MOON!

It’s a....I don’t know what that is! :). And yes, we need deck plans!

As for my eco ship I ended up with a more assault transport (e.g. flying bus) like layout.

Sadly even with 10% discount, budget components, etc. still comes to 19.7 MCr for a J2 100 ton ship. Though if used.... :mrgreen:
Rerednaw
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Re: High Guard...Flattened Sphere Hull?

Postby Rerednaw » Fri Nov 01, 2019 2:30 pm

AnotherDilbert wrote:
Tue Oct 29, 2019 2:56 am
Agreed with previous speakers; Streamlined is streamlined, regardless of shape.

Moppy wrote: Standard and sphere seem identical except one is cheaper. Am I missing errata?
No, you are not missing anything.

Standard configuration is just a default, you didn't really make a choice. It's a perfectly valid choice, but may not be optimal.

Configuration Sphere may have other disadvantages, such as difficulty making good deck plans.
From a structural standpoint a sphere may be stronger due to intrinsics of the geometry. Not sure why the shape gets a discount on cost...building a sphere normally involves more effort.
Moppy
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Re: High Guard...Flattened Sphere Hull?

Postby Moppy » Fri Nov 01, 2019 3:31 pm

Rerednaw wrote:
Fri Nov 01, 2019 2:30 pm
From a structural standpoint a sphere may be stronger due to intrinsics of the geometry. Not sure why the shape gets a discount on cost...building a sphere normally involves more effort.
minimum surface area = less hull metal

advanced construction tech that doesn't care about shape

although that doesn't explain low tech spacecraft costing
Condottiere
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Re: High Guard...Flattened Sphere Hull?

Postby Condottiere » Sun Nov 03, 2019 5:20 pm

Presumably, microgravity resolves structural construction stress.
Moppy
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Re: High Guard...Flattened Sphere Hull?

Postby Moppy » Mon Nov 04, 2019 12:42 am

Condottiere wrote:
Sun Nov 03, 2019 5:20 pm
Presumably, microgravity resolves structural construction stress.
Yes quite possible. Maybe they squirt liquid hull metal into space and it naturally forms a bubble in the "absence" of gravity.
Linwood
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Re: High Guard...Flattened Sphere Hull?

Postby Linwood » Mon Nov 04, 2019 1:12 am

Hmmm.... What about outgassing? Won’t that turn the surface of the bubble porous as metal boils away in vacuum?

Also wondering about cooling - specifically cooling too fast. Will metals cool faster in a coolant media (water, oil, etc.) or in vacuum?
AnotherDilbert
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Re: High Guard...Flattened Sphere Hull?

Postby AnotherDilbert » Mon Nov 04, 2019 8:47 am

Linwood wrote: Also wondering about cooling - specifically cooling too fast. Will metals cool faster in a coolant media (water, oil, etc.) or in vacuum?
Conductive heat transfer is potentially much faster than radiative heat transfer, so metals will cool much slower in vacuum, faster in air, and much faster in liquid.
Linwood
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Re: High Guard...Flattened Sphere Hull?

Postby Linwood » Mon Nov 04, 2019 10:34 am

This suggest the liquid metal in the “bubble” will solidify in the fully-annealed state - so likely peak ductility but lower hardness and tensile strength. That may not be an ideal condition for structural hull elements.
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Re: High Guard...Flattened Sphere Hull?

Postby Moppy » Mon Nov 04, 2019 11:27 am

Traveller metals are “smart” or atomically “massaged” somehow. Bonded Armor has some “electrical current that strengthens the atomic bonds”

I think we are supposed to believe the cost modifiers at TL 7 are a rules/mechanical simplification an uncommon situation (TL 7 in space) that realistically won’t happen, or if it does they just auto-lose to a type S anyway so the stats don’t matter.
AnotherDilbert
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Re: High Guard...Flattened Sphere Hull?

Postby AnotherDilbert » Mon Nov 04, 2019 12:20 pm

I suspect the config mod is not all that carefully considered...

As Moppy hinted before, the config mod is somewhat connected to surface area (and hence needed armour mass). As usual MT and especially TNE and T4 were more detailed.

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