What does PF stand for?

All of a sudden, over Coundon, we saw a parachute flare.

The crew fired parachute flares at them before locking themselves in the bridge and contacting coalition ships for assistance.

30pm guided by Craster auxiliary coastguard, and the person who contacted the team, using white parachute flares to improve visibility in the darkness.

My abiding memories of my time there are of marching round the infants' classroom singing "Bobby Shafto" during gasmask practice, using old Victorian slates on occasion due the wartime paper shortage, and trying to catch the parachutes that used to come down into the playground from time to time when Standard Fireworks up at Crosland Hill were test firing their parachute flares.

Then the parachute flares drifted down, adding their eerie radiance to the light of the moon, bathing the city in a baleful green glow.

As the rear of the convoy crossed the river, a parachute flare shot up across the moonless night sky.

Llandudno Royal National Lifeboat Institute launched parachute flares just off the shore on Monday at 7.

Relying on their eyes, sometimes aided by illumination from parachute flares to detect movers along the railroads and roads, the pilots flew as low as possible to find targets and still navigate safely through the dark valleys.