Ok, in preparation for a potential game, I've done some research on the Navy crew breakdowns for both the Age of Exploration and World War II. Here's a summary of what I found out:

Command Staff:

Captain Rogue Trader

First Mate Seneschel

Pilot Navigator

Comms Astropath

Engineer Tech Priest

Security Arch Militant

Helms Void Space Master

WepSys Void Gunnery Master

Sensors Void Augors Master

Launch Bay Void Small Craft Master

Medical Tech Priest?

Crew Breakdown

Yeomen/Officers (Adepts?) 10%

Security (Armsman) 10%

Engineering (Tech Priests) 10%

Ecclesiarchy (Clerics) 5%

Medical (Possibly 1/2 Adepts 1/2 Tech Priests) 5%

Enlisted (Scum) 60%

Sooo.... Sound like a reasonable breakdown for a Rogue Trader ship?

This seems great, and I don't see any reason why it wouldn't be a good representation of crew statistics. But, I'm curious. Why did you work out a breakdown of crew proportions? Are you planning something based around it? Do you think it might come up for some reason?

Feonor said:

I would break the crew down more like this:

Yeoman/Officers (same archetype as the branche) 5%

Administratum (Adept) 5%

Security (Armsman) 10%

Engineering (Tech Priest but mostly scum) 15% (a lot would be more specialist Enlisted)

Ecclesiarchy (Priest/Militant) 1% (1 clergy for every 100 personal should do the trick)

Medical 1% (1 for each 100 crew is plenty)

Which leaves Enlisted (Scum) 43% (Including most of the specialists)

Pressed ganged Enlisted (anything) 20%

Sister Callidia said:

Using rough numbers, I would break it down so that each Yeoman/Officer was overseeing, on average, about ten Enlisted (AKA Trusted Enlisted, to use the Relentless terminology, if you've read it), and each Enlisted was responsible for about twenty of the Press-Ganged Enlisted (AKA Enlisted). That's 211 people. Add a pair of Medicae, a Tech Priest and three lesser 'Mechanicum Drones', a pair of Ecclesiarchs, and an Adept to file the paperwork, and you have 220 people. Add thirty Armsmen (two per Trusted Enlisted to oversee the area, three for the Officer, and five on patrol), and you have a Crew Unit of 250 people.

I would consider the pilot to be a Voidmaster (the fellow who actually steers the thing). A Navigator is a stand alone position who gives orders to the pilot to get him through the Warp.

Looks good to me, there are 2 places thou where i would changes it.

First Mate could really be anyone depending on the ship and the pc/npc history (I would think it rarely ever would be a npc that takes over when the rogue trader aint on the brigde, and a role of firstmate is one of the other pc)

Security could also very well be a seneschel, since he really got the espionage skills and a arch militant is really more of a soldier/army type that goes in when a situation is getting to hot for the normal security officers can handle

I like that you have the vast majority of your crew to be simply crew. I call these people dregs. I don't like that you have gien them a PC class even if it comes from DH. Most members of the crew perform hard labor on their daily rituals in order to keep the machine spirit of the ship happy. They know little else. They are below any PC in power even a DH character

It may seem a slightly odd choice, but for a starting-level game at least, I would recommend a Missionary for the position of Chief Medicae. They get medicae at first level (as I recall) and they may be the only ones. Their weakness is that Intelligence is the most expensive stat to put up, but if (as I did) you angle all your build choices towards intelligence/medicae, they can start with it pretty high (I got up to the late 50s) and you can also get Talented (Medicae). Then, you spend your initial 500 xp on an Intelligence increase, and you have a doc with 60+ Intelligence and +10 Medicae, which is pretty serviceable.