SPA Ranking system for members amusement

Well so I've been thinking to meself that I could use a good title. This title would have no purpose, I just like the idea of one. Of course the title will take into place the amount of time a person has committed to the organization and how much that person has done. Plus the titles could have little bonuses to them. Such as once someone obtains the rank of Captain they receive an airship! They get to name said airship, any specifics of the ship itself will be settled later when I've put more thought into it.

I originally got the idea last night while watching "Star Trek: Nemesis". I decided to look up the rankings of Starfleet and decided that I would love to have a ranking system of our own. The Starfleet ranks went as follows: Ensign, Lieutenant, Lieutenant Commander, Commander, Captain, Rear Admiral, Admiral, Admiral of the Fleet. (The ranks vary depending on the year, but that was the general theme)

Well of course Starfleet ranks does not apply to a steampunk atmosphere. So here's what I was thinking: any new member is "Expendable Crew", followed by "Valued Crew", "Midshipmen", "Lieutenant", "First mate", "Captain", "Commodore", "Admiral".

The special stuff that comes with the ranks will come later when I have had time to think about them.