USS Melqart
...I may have gone a little overboard here, sorry for that if it's an issue, including the pun. I'm never going to have any issues with not having been specific enough. And this is the edited-down version.
Name
The USS Melqart is named after the Phoenician god of travellers and rebirth. Melqart was also a god of the sea, hunting, fertility and colonisation. He was said to have found a dye that allowed Phoenicians to create purple cloth, and high profits.
To the crew of the USS Melqart, this represents their role in the fleet; being a discoverer of new things, being unafraid to go to new places to live, and being highly productive.
Most of the crew call the ship the Melqart for short, and affectionately call it the Milk Heart. The British crew members take this further by calling it the Heart of Milk as a loose reference to the works of Douglas Adams. New British recruits who use this name are often disappointed by the lack of an Infinite Improbability Drive. The Chief Engineer is working on it (or will be when I have one).
Appearance (internal and external)
The Melqart is a small ship- by Star-Ship standards. Unlike many ships, the Melqart is a fairly consistent width all across it. It's designed aerodynamically, and is fairly thin and long, much like a Terran battleship. The Melqart has no right angles, so as not to be detected by RADAR, on its exterior. The Melqart is a dark purple-blue colour, to blend in with space.
Inside, the Melqart has a large military training area, with "sectors" in closed off chambers, so that all crew members can learn how to cope in various environments if they become stranded, and so that military staff can learn to master stealth. It's become a tradition for there to be various war games, largely between military staff, but the whole crew are allowed extra training sessions, which many chose to take up, for the war games. There are informal competitions in the war games, where tournaments can go on for months.
There is a seed bank, where batches from (mostly plant-like) species encountered are kept. The science crew use some of these seeds for medical research, and some for food research (and eventually for medicine and food), but most go to long term storage.
Due to maintaining absolute stealth, the Melqart has hydroponics, and full oxygen and water recycling. It's can last several months without outside contact and minimal warning. Children often help with the hydroponics recreationally, and as a means of contributing to the ship.
The Melqart is fitted with a vast array of surveillance equipment, most embedded inside with just small bits visible from outside. During times where combat is expected, the accomodation becomes hot-bunked, so only the rooms closest to the workstations are used, to cut down extra minutes of walking between. This also happens if the ship gets over-crowded.
Because of the length, many parts of the ship have accomodation on the deck below the place where their inhabitants work, to minimise walking time. The Melqart is double-hulled; for sound-insulation, to reduce damage during pursuits, and damage during battles, so that crew members remain safe.
There are metal pipes and bars sticking out through much of the ship, mainly in accomodation areas, as she was not made for comfort. In areas more prone to fires, there are bulk-head doors, which can be identified in that there is a large, thin metal sheet along the floor, one attached to the ceiling, and one to each side of the door, so an air-tight seal is formed. Luckily this mostly only includes large mechanical systems, and there are still routes out for disabled workers during fires. Still, it's not great for people unaware of them, and therefore the need to pick feet up high to avoid stubbing toes.
Role
The Melqart is a research vessel- both of original science to help the federation and, in times of unrest, of weaponry and defenses of the opposing side, so that correctly selected ships can take over. However, the Melqart is already fairly heavily armed.
In most uneasy situations, the Melqart dims the lights, switches to silent, and moves in slowly, to go undetected. The Melqart stays in position, or very slowly travels, trying to get as much information as possible. This role means that during hostility, they have to entirely cut off non-encrypted communication- in fact, they come up with unique codes and encryptions before each surveillance period. During long surveillance periods, they'll agree to change the encryption periodically.
The Melqart frequently changes who they work with, and can often just prioritise who most benefits them. They rarely make individual, formal alliances, but neither do they normally make formal enemies. If they don't see an advantage to making an ally or enemy, they won't.
During peacetime, the Melqart tends to stick quite close to individual planets, researching on it. They often spend a lot of time investigating new civilisations.
Crew
The crew has a surprisingly large demographic of aliens compared to many others. Different cultures and religions are welcomed and celebrated aboard, and all accommodation areas have a special area for 'non-specific religious practice', which is a large part of what makes the Melqart appealing to alien and non-US crew- if surveillance is their thing.
All staff are trained in combat and survival skills, and children are taught even from a young age in survival skills. Children are raised to be perfectly happy exploring at the expense of comfort, or even to have an enormous sense of adventure.
The Melqart has very few luxuries aboard, and has pipes and metal edges sticking out at weird angles, so the crew come to be very spatially aware, which is actually an enormous bonus during space combat or combat through unfamiliar places. Many are highly agile. 'The floor is made of lava' is a very popular game among the young aboard, and due to the many pipes and metal bars, most children grow to be capable of never touching the floor within their accommodation. There are a lot fewer bars in other areas, due to this being predicted.
The lack of luxuries may explain their obsession with good food, as it's the only real luxury they have.
Captain
The captain fundamentally disagrees with the prime directive so, aboard ship, it's a poorly kept secret that they often teach native peoples about things in exchange for gathering information about their own planet and civilisation. This is generally done by discussion with them, which can take a long time across the language barrier(s), and is the main reason for the length off their pauses near individual planets.
Typically the captain offers to trade knowledge on things that might help their civilisation to flourish (with their consent), for knowledge about various things, namely; their culture, their anatomy and biochemistry, the ecology of the planet, which animals and plants have potential to be used in science, etc. - or basic supplies. However, the captain has a firm line of never exchanging knowledge of weapons that could pose any threat to the federation, or knowledge of space or air travel.
The captain has similar measures against some other directives, judging by what is actually best, rather than what the directives say is best. The crew is surprisingly good at keeping this all hidden.
The captain doesn't get into unnecessary conflict. They only get the Melqart into formal alliances or hostilities willingly when there is a very clear benefit to their ship or crew. They tend to take missions in exchange for short-term rewards from other crews.
The Captain is British, and proud of it, and actually started the tradition of calling the ship the Milk Heart, (a rather well-kept secret). They have an air of slight disinterest, which is their way of keeping the crew calm.
(I don't really care what they look like or what their gender is! Ideally someone who looks kind of prim and proper, but there's a lot of space within that)
The whole ship is loosely based off of a mixture of nuclear submarines and the HMS Bristol,
both of which I have been on (neither of which while underway). Unlike either, however, food does not consist of just baked beans, cheap sweets, and old potatoes within a few weeks.
Any unmentioned stuff is probably stuff from either nuclear submarines or the HMS Bristol, and expect some of that.