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Tribble puncher January 5 2014 12:36 AM

Nebula vs. Galaxy
 
Started thinking after starting the Akira Thread, What advantages does the galaxy class have over the nebula class? From what I can tell, the nebula has the same saucer, nacelles, and engineering hull as the Galaxy, it may have slightly less volume due to the missing "neck" section. but there is no reason to believe it isn't as scientifically, diplomatically, or whateverly capable as the Galaxy Class, The Nebula may even be a better Ship then the Galaxy due to the changeable "Pod" on the back, (if it is indeed changeable, I've found nothing to indicate that isn't fan speculation as well.) I guess my question is, why the Galaxy Class? It's a Stately looking ship to be sure but it seems like a pretty unnecessary class to be sure.

Tosk January 5 2014 01:12 AM

Re: Nebula vs. Galaxy
 
Just for starters, I assume the Nebula has no saucer separation ability...

Nob Akimoto January 5 2014 02:19 AM

Re: Nebula vs. Galaxy
 
The Galaxy actually has about 30% more internal volume than the Nebula. The saucer and engineering hulls on the ships are not actually the same. The engineering hull in particular is a fair bit smaller, while the saucer lacks the large impulse engines. (In fact the Nebula seems to have extremely small impulse engines in general.)

Further, in terms of little details the Nebula is clearly a more "economy" version. The lack of the "neck" precludes the large, advanced 10-torpedoes at a time torpedo tube in the Galaxy, it has a smaller main deflector, and at least the original studio model lacked windows and the main shuttlebay on the saucer. Even on the CGI model that reuses Galaxy mesh elements, it's not entirely clear if the saucer shuttlebay is still there. It's possible the whole thing has been turned into a large cargo bay.

In which case the engineering hull is more likely to have a lot of its rear half taken up by shuttle facilities where its main shuttle bay is located. Overall the ship has less usable volume and substantially less expandability.

blssdwlf January 5 2014 03:08 AM

Re: Nebula vs. Galaxy
 
In some of the pics it would appear that the Nebula has a smaller saucer suggesting that it is a smaller ship relative to the Galaxy.

Crazy Eddie January 5 2014 03:26 AM

Re: Nebula vs. Galaxy
 
Akimoto covered most of it, but simply to add: I have always assumed the Nebula class was built slightly before the galaxies, and that Starfleet ultimately streamlined the modular "mission pod" design by incorporating most of that additional sensor capability into the Galaxy's external sensor bays and probe modules. That, of course, would imply that the Nebula's saucer is a substantially different design; lacks sensor bays in the rim, probably different primary sensor configuration too. Integrating that external pod into the main superstructure probably makes for a more efficient design, although the greater sophistication of the basic Galaxy class means the Nebulas would still be easier to mass produce.

Nob Akimoto January 5 2014 04:00 AM

Re: Nebula vs. Galaxy
 
By the time the CGI version comes around, though, you start seeing more Galaxy class features. Since those ships also have much higher registry numbers than the initial TNG batch, it might be safe to assume that at some point the design itself got updated with Galaxy style improvements for things like sensor bays and the deflector.

My guess is that Starfleet never expected to be able to produce enough Galaxy class ships to completely fill its needs, and faced with the complexity of its development, decided to take the initial design items and start fabricating them in advance of Galaxy production, leading to the slightly older looking Nebula class ships during TNG. By the time the CGI Bonchune model rolls around, Galaxy production has been restarted and the design is well established, so they started building ships with common components to increase interoperability.

Also the recent novel Peaceable Kingdoms notes a Nebula-class ship is 30 years old circa 2385, implying that the class saw production almost a decade before the first production Galaxy-class ships.

Tribble puncher January 5 2014 05:22 AM

Re: Nebula vs. Galaxy
 
Looking at some pics of the u.s.s. Pheonix, as I believe it was the first nebula class ship seen on screen. I can't see the rear of the saucer: http://en.memory-alpha.org/wiki/USS_Phoenix So I'm not sure of the shuttlebay, also, I noticed that there are no impulse engines on the saucer, The farragut: http://en.memory-alpha.org/wiki/USS_...ut_(NCC-60597)) appears to have a galaxy style main shuttlebay. but no saucer impulse engines. this would suggest that it cannot seperate. also pics of the uss bonchune http://en.memory-alpha.org/wiki/USS_Bonchune has no saucer impulse engines, but has more numerous windows, similar in arrangment to a galaxy class ship. maybe the galaxy class ship was built as a "fly the flag, rally the people" type ship?

B.J. January 5 2014 08:02 AM

Re: Nebula vs. Galaxy
 
Interesting to note that on both the Farragut and Bonchune, you can see where the impulse engines would be if they were on a Galaxy class ship. Those spots are simply filled in, but the original shape is evident in the paneling.

RunawayStarShip January 5 2014 04:12 PM

Re: Nebula vs. Galaxy
 
Quote:

Tribble puncher wrote: (Post 9085945)
maybe the galaxy class ship was built as a "fly the flag, rally the people" type ship?

I'm not sure that's a valid design goal since appearances are in the eye of the beholder.

Starfleet seems to like building lighter versions of their ships of the line (Galaxy and Nebula, Constitution and Miranda, Excelsior and Centaur-type), so there is some in-universe reason for the paired designs.

In "Tin Man", the Enterprise-D (and her Galaxy-class sister ships, presumably) is referred to as the fastest ship in the fleet. The original Enterprise held numerous speed records, according to Captain Stiles in TSFS. It's possible that the geometries of Starfleet's heavy cruisers are better suited for high warp speeds. The modular pod of a Nebula might make it more suitable for urgent, extremely mission-specific roles.

Otherwise, just about every starship built by Starfleet is multi-purpose.

Saturn0660 January 5 2014 05:32 PM

Re: Nebula vs. Galaxy
 
Quote:

RunawayStarShip wrote: (Post 9087079)

In "Tin Man", the Enterprise-D (and her Galaxy-class sister ships, presumably) is referred to as the fastest ship in the fleet. The original Enterprise held numerous speed records, according to Captain Stiles in TSFS. It's possible that the geometries of Starfleet's heavy cruisers are better suited for high warp speeds. The modular pod of a Nebula might make it more suitable for urgent, extremely mission-specific roles.

I'd give you that she's the "fastest in the fleet".. Not the quickest mind you. Just the fastest. I have zero doubt that there are "quicker" ships in the fleet. (SFB: Federation Express). However, in terms of long range nothing could touch the Galaxy Class.
I would also think that the cost of these "super starships" would have been through the roof. Much like the Supercarriers of today.
Theres a reason we only have 10 active right now. :techman:

Lord Garth, FOI January 5 2014 08:02 PM

Re: Nebula vs. Galaxy
 
Galaxy has a bigger kindergarten and the interiors are a better match for a Hampton suites

Santaman January 5 2014 09:13 PM

Re: Nebula vs. Galaxy
 
I think its better to compare them to the Russian Kirov and Slava class cruisers of the Sovjet Union, the first one put the latest tech inside the largest and most expensive nuclear powered hull, the other one put well known tech into a a smaller conventional hull to have a backup if Kirov would fail.

So the Galaxy class puts the (b)leading edge stuff in the best possible hull and the Nebula is a really large but more conventional design.

bbjeg January 6 2014 12:04 AM

Re: Nebula vs. Galaxy
 
^Maybe in the upgraded version of the Nebula. I also agree that the Nebula was made prior to the Galaxy class. Didn't O'Brien serve on one before he joined the Enterprise D crew?

DarthTom January 8 2014 08:52 PM

Re: Nebula vs. Galaxy
 
Quote:

Lord Garth, FOI wrote: (Post 9088156)
Galaxy has a bigger kindergarten and the interiors are a better match for a Hampton suites

:guffaw::guffaw: Nebula class is a better one for the W Hotel. ;)

King Daniel Into Darkness January 9 2014 08:43 AM

Re: Nebula vs. Galaxy
 
The Nebula has a much crappier-looking bridge than the Galaxy-class (is "Redemption" the only time we've seen one?)


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