| Letter | 1913 | 1927 | 1938 | World War II | 1957-Present | Signal Flag |
|---|---|---|---|---|---|---|
| A | Able | Affirmative | Afirm | Afirm (Able) | Alfa |
|
| B | Boy | Baker | Baker | Baker | Bravo |
|
| C | Cast | Cast | Cast | Charlie | Charlie |
|
| D | Dog | Dog | Dog | Dog | Delta |
|
| E | Easy | Easy | Easy | Easy | Echo |
|
| F | Fox | Fox | Fox | Fox | Foxtrot |
|
| G | George | George | George | George | Golf |
|
| H | Have | Hypo | Hypo | How | Hotel |
|
| I | Item | Interrogatory | Int | Int (Item) | India |
|
| J | Jig | Jig | Jig | Jig | Juliett |
|
| K | King | King | King | King | Kilo |
|
| L | Love | Love | Love | Love | Lima |
|
| M | Mike | Mike | Mike | Mike | Mike |
|
| N | Nan | Negative | Negat | Negat (Nan) | November |
|
| O | Oboe | Option | Option | Option (Oboe) | Oscar |
|
| P | Pup | Preparatory | Prep | Prep (Peter) | Papa |
|
| Q | Quack | Quack | Queen | Queen | Quebec |
|
| R | Rush | Roger | Roger | Roger | Romeo |
|
| S | Sail | Sail | Sail | Sugar | Sierra |
|
| T | Tare | Tare | Tare | Tare | Tango |
|
| U | Unit | Unit | Unit | Uncle | Uniform |
|
| V | Vice | Vice | Victor | Victor | Victor |
|
| W | Watch | William | William | William | Whiskey |
|
| X | X-ray | X-ray | X-ray | X-ray | X-ray |
|
| Y | Yoke | Yoke | Yoke | Yoke | Yankee |
|
| Z | Zed | Zed | Zed | Zebra | Zulu |
|
Sources:
The Bluejackets' Manual. Revised and Expanded ed. Annapolis:
Naval Institute Press, 1913.
The Bluejackets' Manual. 5th ed. Annapolis: Naval Institute
Press, 1917.
The Bluejackets' Manual. 7th ed. Annapolis: Naval Institute
Press, 1927.
The Bluejackets' Manual. 8th ed. Annapolis: Naval Institute
Press, 1938.
The Bluejackets' Manual. 11th ed. Annapolis: Naval Institute
Press, 1943.
The Bluejackets' Manual. 15th ed. Annapolis: Naval Institute
Press, 1957.
The Bluejackets' Manual. 20th ed. Annapolis: Naval Institute
Press, 1978.
Watson, Bruce W. and Susan M. Watson. United States Navy: A
Dictionary. New York: Garland Publishing, 1991.