| Earth Master sergeant insignia | |
|---|---|
 |
Master sergeant was a military rank, a traditional infantry or army enlisted grade held by a non-commissioned officer. In comparison to naval ranking systems, this rank was approximately equivalent to the naval chief petty officer or senior chief petty officer grades.
On an planetary duplicate of Earth, a boy named Jahn wore a master sergeant patch, among others, on his jacket. (TOS: "Miri")
The insignia seen on Jahn's jacket was styled like a US Army master sergeant – three chevrons above and three rockers below, with no center insignia – sewn onto US Marine Corps colors, pre-1959 style insignia.
According to the Star Trek Encyclopedia (4th ed., vol. 2, p. 9), major sergeant was a rank in the Military Assault Command Operations in the 2150s. The insignia for this rank was on display in a diagran of MACO rank and insignia.
| Enlisted personnel | Commissioned officers | Generals and flag officers | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fleet: | CRM | PO | CPO | MID CDT | ENS | LT JG | LT | LT CMDR | CMDR | CAPT | FCAPT | CDORE | RADM | VADM | ADM | FADM | ||||
| Military: | PVT AMN | CPL | SGT | SSGT | MSGT 1SGT | 2nd LT | 1st LT | CAPT | MAJ | LT COL | COL | BRIG | MAJ GEN | LT GEN | GEN | MARSHAL | ||||
| Positions: | Boatswain • Chief • Corpsman • Engineer's mate • Specialist • Technician • Yeoman | TAC • SO • 3rd • 2nd • 1st • CO • DD | Portmaster • Chief of Staff • CinC | |||||||||||||||||
| Services: | Andorian • Bajoran • Cardassian • Ferengi • Jem'Hadar • Klingon • Romulan • SS • United Earth MACO • United Earth/Federation Starfleet • United States • Vulcan Mirror universe: Terran Empire Starfleet • Terran Empire MACO | |||||||||||||||||||
This chart shows only general equivalencies based on the ranks used by many governments on Earth, as well as the rest of the galaxy.
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