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Ships - sizes, densities, and nomenclature.

Author
Galen Dnari
Dnari Mining and Manufacturing
#1 - 2015-02-19 23:12:09 UTC  |  Edited by: Galen Dnari
Some things about the ships in EVE bother me a bit. I suppose it's my OCD kicking in. Cool Not the least is the "surface ocean ships transported to space" aspect which results in ridiculously short combat ranges, ridiculously low speeds, and some pretty silly "acceleration" effects. But never mind that. Here's my thoughts on some other things:

1. Nomenclature

The nomenclature of ships in EVE has grown up from the community and to some extent from the developers. Most of whom probably don't have any RW Navy experience. So some terms have arisen which frankly make me wince. Cool

Rookie Ship - Really? Nobody in the RW would ever call it that. Call it a Corvette, and make it a bit smaller than a Frigate.

"Dessy" - No. Sorry. To me, the short designation for "destroyer" is "DD". Yeah, I know, that has another meaning in Eve Online. Don't care.Cool

"EW Frigate" - Hm. Okay, I guess.

"Electronic Attack Ship" - No. Too cumbersome, for one thing. And it just doesn't sound right. Don't know what to call it.

"Cov(ert) Ops Ship" - No. "Stealth Frigate"

"Force Recon Ship" - "Force Recon Cruiser"

"Logistics" - "Fleet Support Cruiser"

"Heavy Interdiction Cruiser" - "Heavy Interdictor"

"BS" - Bull****. P A battleship is a BB, just as a destroyer is a DD.

Note on BB and DD. These arise for me from the US Navy's nomenclature for these ships. I'm aware that other navies do things differently, but this is what I'm used to.

On Ship Types and Ship Classes

The ship types are Battleship, Battlecruiser, Cruiser, and so on. The ship classes are not so simple. In the RW, two ships built on identical hulls, but with different fittings (in Eve terms) would be in different classes. In Eve it seems better to classify each distinct hull as a distinct class - e.g. Navitas, Tristan, etc. But then you have to keep in mind that the capabilities of two Tristans (for example) may be significantly different. Pilot training and skill makes a difference, too, but that's true in the RW as well.

Sizes and Densities

David Weber's "Honorverse" ships, early on, had some pretty strange discrepancies. These came to light when AdAstra Games was working on their "Saganami Island Tactical Simulator" game. One comment that was made: "Some of these ships are about as dense as smoke!" This led to "The Great Restructuring" where the volumes and masses of the various ship types were brought into better alignment. I have the impression (I could be wrong) that not much attention was paid to this question in the design of Eve ships.

In modern RW practice, ships are classified to a large extent by displacement - the weight of water the ship displaces. In space, the mass of the ship seems likely to be more relevant. Eve does a poor job of this IMO:

Impairor: 1,148 Tonnes, 28,100 m3, 0.040 Tonnes/m3
Executioner: 1,090 Tonnes, 28,100 m3, 0.039 Tonnes/m3

A corvette should not be more massive than a frigate!

Coercer: 1,650 Tonnes, 47,000 m3, 0.035 Tonnes/m3
Omen: 14,045 Tonnes, 118,000 m3, 0.119 Tonnes/m3
Harbinger: 13,800 Tonnes, 234,000 m3, 0.059 Tonnes/m3

A Cruiser should not be more massive than a BC!

Apocalypse: 97,100 Tonnes, 495,000 m3, 0.196 Tonnes/m3

See how the densities are all over the place?

For comparison, some WWII ship types:

Frigate: around 1500 long tons
Destroyer: around 3500 long tons
Light Cruiser: 6000 long tons
Heavy Cruiser: 14,500 long tons
Battlecruiser: 34,000 long tons
Battleship: 58,000 long tons

For EVE I would suggest perhaps a density of 0.25 Tonnes/m3 and the following masses:

Corvette: 1000 Tonnes
Frigate: 1500 Tonnes
Destroyer: 3500 Tonnes
Cruiser: 12000 Tonnes
Battlecruiser: 35,000 Tonnes
Battleship: 60,000 Tonnes

A shuttle might mass 500 Tonnes, instead of the in-game 1600 Tonnes (more than a frigate? Really?) and have a volume of 2000 m3, half the size of a Corvette ("rookie ship") and one third that of a frigate.

This would result in volumes, respectively, of:

Corvette: 4000 m3
Frigate: 6000 m3
Destroyer: 14000 m3
Cruiser: 48000 m3
Battlecruiser: 140,000 m3
Battleship: 240,000 m3

For most folks, this will fall into the category "who cares", but I felt like saying it, so I did.Big smile

http://eveboard.com/ub/1939472205-31.png

Cancel Align NOW
Royal Amarr Institute
Amarr Empire
#2 - 2015-02-19 23:26:28 UTC
Galen Dnari wrote:


"Force Recon Ship" - "Force Recon Cruiser"

"Logistics" - "Fleet Support Cruiser"

"Heavy Interdiction Cruiser" - "Heavy Interdictor"




Unsuccessful At Everything
The Troll Bridge
#3 - 2015-02-20 00:04:26 UTC
Quote:
Rookie Ship - Really? Nobody in the RW would ever call it that. Call it a Corvette, and make it a bit smaller than a Frigate.

"Dessy" - No. Sorry. To me, the short designation for "destroyer" is "DD". Yeah, I know, that has another meaning in Eve Online. Don't care.Cool

"EW Frigate" - Hm. Okay, I guess.

"Electronic Attack Ship" - No. Too cumbersome, for one thing. And it just doesn't sound right. Don't know what to call it.

"Cov(ert) Ops Ship" - No. "Stealth Frigate"

"Force Recon Ship" - "Force Recon Cruiser"

"Logistics" - "Fleet Support Cruiser"

"Heavy Interdiction Cruiser" - "Heavy Interdictor"

"BS" - Bull****. P A battleship is a BB, just as a destroyer is a DD.


Nobody call them that. They are reffered to as the following FYI:

Noobship
Desi
EWAR frig
Mother ******* Blackbird
Cloaky and or Bomber
Recon (or PRIMARY THE LACHESIS)
Logi
HIC
Bait.

Quote:
Impairor: 1,148 Tonnes, 28,100 m3, 0.040 Tonnes/m3
Executioner: 1,090 Tonnes, 28,100 m3, 0.039 Tonnes/m3

A corvette should not be more massive than a frigate!


Stop comparing Granny Smith Apples to Fuji Apples. The noobship is a smaller general frigate, whereas the Executioner is a tech 1 interceptor. Compare the Impairor to the Tormentor instead. The interceptors are specialized to be lighter and more agile than other frigates, which would effect their mass considerably.

Since the cessation of their usefulness is imminent, may I appropriate your belongings?

ShahFluffers
Ice Fire Warriors
#4 - 2015-02-20 00:12:32 UTC  |  Edited by: ShahFluffers
Since we are being anal retentive and all...

*ahem*

Stop calling it RW (Real World). Everyone gets confused by that. Use RL (Real Life).


Outside of that... check your preconceptions on how things should be at the log in screen. Any issues you have with EVE due to this are intentional. Twisted
No... seriously. It is a different culture here. We nickname things based on what we prefer... not the US military's.


edit: besides... most of the naval classifications for ships make absolutely no sense to me. "Classes" are size categories... ship "types" are where there are specific differences in roles / types of ships.
So a Tristan would be... Frigate-class, Tristan-type hull.
A Executioner would be... Frigate-class, Executioner-type hull.

This makes much more sense to non-military people as it is simple, clean, and intuitive.



edit2: ship volume and mass are "all over the place" because of game balance. In-game...

- mass plays a factor in acceleration and agility (especially when propulsion mods are considered)

- volume plays a role where ships can and cannot be stored... and how many (POSs, Carriers, Supercarriers, and Titans have limitations on how many assembled ships can be stored in them).
Rawketsled
Generic Corp Name
#5 - 2015-02-20 00:50:30 UTC
Are you also annoyed that 75mm railguns and 150mm railguns both use the same sized ammunition?
Amrthis
Center for Advanced Studies
Gallente Federation
#6 - 2015-02-20 01:43:28 UTC  |  Edited by: Amrthis
so you think EVE online ship such as Hyperion should weigh in at about 60K Tones?

we are talking about a ship that is 1509 meter long at 495,000 m3 its dimensions dont really work out for the volume to make it simple a box thats 1509m long would only have to be 18.11x18.11x1509 m to fill that volume that doesn't really work out when the width of the Hyperion looks to be significantly bigger than that. id say close to made 1509 x150x200 might work out better but thats a whooping 45 MILLION m3

well with the varied curvature of the hull i figure it could be maybe 25 to 35 million but thats still a staggering 60x more than it is right now

at that size lets compare the heaviest warship to be built NIMITZ class super-carrier (lol) 105,000 long tons of displacement
333m long 70meter wide (40m wide at water line so call it 55 average) and its about 21m tall (from the bottom t the deck)
that comes out to a volume of 384,615 m3 give it say 385m3 for the tower and you get 385,000m3 the nimitz class super-carrier that weighs in at 105,000 TONS making it 0.2727 tons per m3

you want this to out-mass by 40% my damned 1.5 KILOMETER WARSHIP? whats it made of paper?

i think if you want to scale these ships to realistic volumes and masses i think you are looking at scaling them way the hell up,
but then your looking at fixing carriers too seeing as they somehow fit a pair of 30million m3 ships inside. it can get quite messy, the other option i guess would be to scale these monsters down significantly and who wants that?

but lets looks at a ship thats more like a box ROKH

1025 m long
on screen that comes out to about 10" x 1" x 3" rough size that calculates to dimensions of

1025 x 102.5 x 307.5 thats a god damned 32 million 306 thousand 718 cubic METERS! this ****** is twice the volume of capital ship

so if we scale these at the average mass per m3 of our carrier there these ships would mass .2727 tons per m3

Hyperion would mass in at 8,181,818 TONS (calculated at 30 million m3)

so lets assume that armor in eve is lighter than steel per volume but still stronger also they take up alot more volume so can have a lower average density than our ocean based warships witch which the Hyperion comes in at 0.202 tons per m3

that's still pretty respectable at 200kg per m3 you are looking at an armor plate thats 1 inch thick (assuming its steel) if it was titanium you would be looking at a plate 1.733 inches thick while depleted uranium it be only 0.4 inch thick

and at this mass per volume my 30 million m3 Hyperion masses in at 6 million m3


so lets look at thickness of armor lets go back to our hypothetical box 1509 x 200 x 150 that comes out to a surface area of
301,800x2 + 226,350x2 + 30,000*2 = 1,116,100 m of surface

at 30 million m3 average mass per m3 .2 tons we are looking at 150,000,000 armor plates
resulting in an armor or about 134.4 inches or 3.4 meters thick thats damned good armor right? but thats steel

if it were titanium thats 5.9 meters of armor

but lets assume that this being so far into the future armor is considerably lighter than that lets say we get 3 inches of armor per 200kg that would result in an armor over 10 meters thick

on the other hand if it were Depleted uranium you would only have an armor of 1.36 meters

of course thats assuming all that mass went into the said battleships armor which sure as hell it wouldn't but it gets the point across think

that sounds like a damned respectable battleship



so to recap average weight per m3 i think is good
the problem is ship volumes at the dimensions

also how the hell is 1400mm artillery ammo smaller than my 425mm railgun ammo

next we will see who proves to be a bigger nerd than i am

let the games begin



or perhaps could we agree not to bring this up ever again as it will make everyone heads spin to try to balance this out.
Serene Repose
#7 - 2015-02-20 03:47:34 UTC
But a corvette is a rookie ship....uh huh. I called 911. They'll be here shortly. Meanwhile: Meet our first candidate for the Try Not To Think Award for 2015. Congratulations sir. OCD seems to give some candidates an advantage.

We must accommodate the idiocracy.

Pok Nibin
Doomheim
#8 - 2015-02-20 04:03:12 UTC  |  Edited by: Pok Nibin
Weall...yes and no. Destroyer. Aye DD. However, escort destroyer was DE.
Cruiser? CA, CB, CC, CL, CV...aviation cruiser? Interesting. Cause, then we get....
CV, Fleet Aircraft Carrier, CVA, CVAN, CVB, CVE, CVHA, CVL, CV(N) (night operation...dark side of the moon perhaps?) CVN (nuclear - no parenths), CVS, CVT, CVU, CVG, CVV. Whew. Anything that can launch an aircraft.

Pre 1920 Battleship? That was "B". Afterward, yes, that is BB, BBG, BM (monitor, not bowel movement.)

Oh yes, but the "corvette" got bigger! DDC! Corvette! So....uh....
DDE, escort destroyer, not to be confused with DE destroyer escort.

SO...and I stop here. The list runs a couple of pages. As you can see this logical consistancy in U.S. Navy hull designations is all in the eye of the beholder. Even the early 19th Century U.S. designation for "frigate" is disputed internationally.

What you can discern from the OP is, the U.S. Navy is also known for a level of arrogance that defies imagination.
It's good to see the tradition is still alive and well.

Off we go into the wild blue yon-der....!!

The right to free speech doesn't automatically carry with it the right to be taken seriously.

Jacob Holland
Weyland-Vulcan Industries
#9 - 2015-02-20 08:51:58 UTC
Galen Dnari wrote:
Rookie Ship - Really? Nobody in the RW would ever call it that. Call it a Corvette, and make it a bit smaller than a Frigate.

Rookie Ship is colloquial - the four Rookie Ships are frigates; they're old, virtually obsolete frigates which are no longer viable in real warfare but suitably similar to more modern vessels to see use as training ships.

Galen Dnari wrote:
"Dessy" - No. Sorry. To me, the short designation for "destroyer" is "DD". Yeah, I know, that has another meaning in Eve Online. Don't care.Cool

"DD" is a designation which came into use to shorten the time required and to improve the clarity of encoded messages - They could be "D" but in adverse radio conditions the meaning of that is easily lost.
We don't have that history to reflect and we don't have to worry about Morse code, let alone unsecured communications given the fluid routers.
We shorten things to reduce the time required to write them but we need words which are pronouncable and relatively clear in spotty voice...

Galen Dnari wrote:
"BS" - Bull****. P A battleship is a BB, just as a destroyer is a DD.

"BB" is the Blackbird; We've shortened things differently - the same reasons as above apply.

Galen Dnari wrote:
A corvette should not be more massive than a frigate!

Why not? A corvette is likely to be less dense but it could well be far larger - corvettes are civilian vessels converted to military use after all...
Gregor Parud
Imperial Academy
#10 - 2015-02-20 09:38:47 UTC
"I know military names my country uses (who gives a fck what names other countries have for it) and want to show off this knowledge because of :reasons:, this futuristic game has it all wrong".

Ok.
Abrazzar
Vardaugas Family
#11 - 2015-02-20 10:04:05 UTC
Now compare ship volumes and cargo hold volumes.

Try not to laugh.
Beacon of Deacon
School of Applied Knowledge
Caldari State
#12 - 2015-02-20 10:07:43 UTC
I agree with the general idea- EVE could use a lot of the class standardization as we know it. On the other hand, using the rl hull classification from WW II could open a lot of doors for new ship developments. Sansha or Guristas having jump freighters would be kind of lame, but them having an AP or AK would make a lot more sense. Distinguishing between regular frigates for most races and FFG for some Caldari and Minmatar ships would add some flavour and individualism to the ships we have.

However since the topic of sizes was touched upon, i think we can all agree that the current way EVE works can be best described as "magic". I remember some time ago a situation where a Leviathan was sitting at 0 on a pos. I was sitting at 0 on the Levi on the opposite side, yet the distance between me and the tower was... 0 km? Strange, considering a Levi is about 20 kms long. This isn't an accussation, afterall this part of the game hasn't been touched upon in more than a decade, still I remain hopefull that eventually CCP will launch a team to redesign this particular element of the game and maybe even make my poor shots ricochet or hit someone else in the general vicinity of my target.
Aursentris
Council of Stellar Erections
#13 - 2015-02-20 10:16:03 UTC
Jackie Fisher
Syrkos Technologies
#14 - 2015-02-20 10:25:10 UTC
Galen Dnari wrote:

"Dessy" - No. Sorry. To me, the short designation for "destroyer" is "TBD".


Fear God and Thread Nought

Vyl Vit
#15 - 2015-02-20 19:19:38 UTC
Galen Dnari wrote:

"Dessy" - No. Sorry. To me, the short designation for "destroyer" is "TBD".
YAY! We get to be slaves to what YOU LIKE? Goody goody!

Paradise is like where you are right now, only much, much better.

Serene Repose
#16 - 2015-02-20 19:22:08 UTC
I get it. I get it. This is the obligatory "I know what would make THIS game perfect" idea all post-adolescent males must come up with to fit into their peer group. Then they can tell their buds, "I told them how to perfect their game, but they wouldn't listen to me." Grunts of sympathy all around as you pump another plastic cup of foam from that keg you managed to afford!

I GET IT!

*struts away feeling a whole lot smarter now*

We must accommodate the idiocracy.

Silverdaddy
Ourapheh Holdings
#17 - 2015-02-21 00:19:22 UTC
Step 1: Spread Cheeks
Step 2: Remove Stick

The problem with slavery is that only half of the manacles are visible. The Holder, supposed master, is equally bound by the gilded chains of privilege and wealth.

Sibyyl
Garoun Investment Bank
Gallente Federation
#18 - 2015-02-21 01:22:11 UTC
Unsuccessful At Everything wrote:

Desi


Chicken Vindaloo?

Joffy Aulx-Gao for CSM. Fix links and OGB. Ban stabs from plexes. Fulfill karmic justice.

Unsuccessful At Everything
The Troll Bridge
#19 - 2015-02-21 02:50:35 UTC
Sibyyl wrote:
Unsuccessful At Everything wrote:

Desi


Chicken Vindaloo?



Homemade?

Since the cessation of their usefulness is imminent, may I appropriate your belongings?

Hipqo
Tyde8
#20 - 2015-02-21 08:40:51 UTC
Galen Dnari wrote:
Some things about the ships in EVE bother me a bit. I suppose it's my OCD kicking in. Cool


No its not your "OCD kicking in". OCD is NO joke and should not be treated like that.
If you had it, you would know...

Galen Dnari wrote:
Note on BB and DD. These arise for me from the US Navy's nomenclature for these ships. I'm aware that other navies do things differently, but this is what I'm used to.
Big smile


I read US navy, and then i stopped reading.
Stop "americanizing" everything, this is CCP in island, not NASA.
They can call it what ever they want to.

A life is best lived, to not step into your grave in a well preserved body. Instead, to slide in side ways, all battered and bruised, screamming, "Holy SH**! What a ride!"

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