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Crewman insignia
Ent crew1

Starfleet (1st, 2nd, 3rd class),
22nd century

Ent crew2

Starfleet (1st, 2nd, 3rd class),
22nd century

Ent crew3

Starfleet (1st, 2nd, 3rd class),
22nd century

Starfleet (1st, 2nd, 3rd class),
22nd century
Mov crew.png

Starfleet, Late 2270s - 2350s

Starfleet, Late 2270s - 2350s
Vgr chief.png

Starfleet (provisional), 2370s

Starfleet (provisional), 2370s
Alternate Crewman insignia
A.I. Starfleet CREW.png

Starfleet, 2370 (alternate timeline)

Starfleet, 2370 (alternate timeline)

Crewman (also known as ables'man or able crewman) was an enlisted naval rate, a type of military rank used by the service organizations of different cultures. This title was the lowest enlisted rank, subordinate to a petty officer.(citation needededit) In comparison to infantry ranking systems, this rank was approximately equivalent to the grade of private.(citation needededit) In Klingonese, this rank was referred to as bekk. (DS9: "Sons and Daughters")

In Starfleet, a "crewman" referred to either a person who held the actual rank or simply any person who was assigned to an organization or starship. The grade of crewman was divided into several classes, such as "crewman first class", "crewman second class", etc. (TOS: "The Man Trap")

Civilian merchant ships also used the rank of "able crewman." After his less-than-impressive dealings with the Nausicaans in 2151, First Officer Matthew Ryan of the freighter ECS Fortunate was demoted to able crewman in order to have to earn back Captain Keene's trust. (ENT: "Fortunate Son")

Crewman first class
Crewman second class
Crewman third class
This chart shows only general equivalencies based on the ranks used by many governments on Earth, as well as the rest of the galaxy.

Appendices Edit

Background information Edit

Although Star Trek has often been ambivalent about enlisted ranks and insignia, there have been mentions of the term "crewman" since TOS: "The Man Trap", although it is continuously impossible to tell who this rank was bestowed upon, since both crewman and ensigns (as well as chief petty officers) had no visible rank insignia.


Robert Fletcher's original costume notes

In the Star Trek movies, costume designers created insignia for chiefs and petty officers and even crewmen. In particular, Robert Fletcher's Star Trek II: The Wrath of Khan uniforms had an entire series of enlisted rank insignia. Some of these were reproduced (albeit incorrectly) in the Star Trek Encyclopedia. This is the origin of the "ables'man" term which has not been used elsewhere in Star Trek.

Fletcher's original costume notes actually referred to the rank of crewman as "able seaman", a term which has been used nowhere else in Star Trek with most sources referring to the pin designed by Fletcher simply as "crewman".

In TNG: "The Drumhead", it was established in dialogue that Simon Tarses was an enlisted crewman who had not gone to the Academy; he had a blank collar. This lack of rank insignia for crewmen and noncoms was used throughout Deep Space Nine and Voyager, although chief petty officers were assigned different insignia.

Several rank insignia were sold off on the It's A Wrap! sale and auction on eBay, including a crewman second class patch. [1]

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