Military Alphabet · Letter P
P in the Military Alphabet: Papa
Code word, pronunciation, history, and how to use it when spelling out loud
In the military alphabet, the letter P is Papa, pronounced pah-PAH with the stress on the second syllable. The word has represented P since ICAO's 1951 alphabet and survived the 1956 revision untouched. On the radio it keeps P clearly separate from B — Papa and Bravo sound nothing alike, while spoken P and B are easily swapped.
The spelling matches everyday usage, but ICAO's prescribed pronunciation puts the stress on the second syllable: pah-PAH, not PAH-pah.
Why "Papa"?
Papa is a child's word for father in French, Spanish, Italian, German, and a long list of other languages, which made it close to self-explanatory for the multinational aircrews ICAO had in mind. ICAO's respelling fixes the stress on the second syllable, pah-PAH, so crews of every language say it the same way. Like Oscar, it entered the alphabet in 1951 and gave the testers no reason to replace it in 1956.
P Across Spelling Alphabets
| Alphabet | Word for P |
|---|---|
| NATO/ICAO | Papa |
| LAPD | Paul |
| Western Union | Peter |
| German (Classic) | Paula |
| German (DIN 5009:2022) | Potsdam |
| French | Pierre |
| Spanish | París |
| Italian | Palermo |
| Able Baker (WWII, historical) | Peter |
| RAF 1924 (historical) | Pip |
P has one of the longest continuous spelling histories of any letter: British WWI signalese used Pip — 'pip emma' meant p.m. — and the RAF's 1924 alphabet kept it. The WWII Able Baker alphabet switched to Peter, which still surfaces in older British usage as 'P for Peter,' before Papa arrived in 1951.
Papa in the Field
Sailors know the Papa flag as the Blue Peter: a blue rectangle with a white core, hoisted in harbor to signal that the ship sails soon and all hands should report aboard. The long-running BBC children's program Blue Peter took its name from that flag. NATO assigned the reporting name Papa class to the Soviet Project 661 cruise-missile submarine — a class of exactly one boat, the titanium-hulled K-222.
"P as in Papa" on the Phone
Patel — P as in Papa, A, T as in Tango, E, L as in Lima.
More on spelling out names and codes call-side in the phone spelling guide, and every letter's "as in" word is on the letters-as-words page. To convert whole words instantly, use the free military alphabet translator.
ONE TO REMEMBER
K-222, the sole Papa-class submarine, recorded roughly 44.7 knots submerged in 1970 — still the fastest speed ever attributed to a submarine.
Frequently Asked Questions
What is P in the military alphabet?
P is Papa in the NATO phonetic alphabet. Operators say Papa so that P cannot be confused with B, C, D, or any of the other rhyming letter names over a degraded voice channel.
How do you pronounce Papa?
pah-PAH, stressing the second syllable, not PAH-pah — that is ICAO's official respelling. A consistent stress means crews of every language say it identically.
What was P before Papa?
Pip, in British WWI signalese and again in the RAF's 1924 alphabet, then Peter in the WWII Able Baker alphabet. Papa took over with ICAO's 1951 alphabet and was retained in 1956.
What does the Papa flag mean at sea?
Flown in harbor, it is the Blue Peter: the vessel is about to proceed to sea and all persons should report on board. The BBC series Blue Peter is named after this flag.
Every Letter A–Z
Previous letter: O — Oscar · Next letter: Q — Quebec
Make It Automatic
Reading is recognition; games are recall. Drill all 26 letters until Papa answers itself.