En-route Airfields

Question 1

Airfield Classification- what is a BLUE airfield?

Answer 1

BLUE - BA Destination

Question 2

Airfield Classification- what is a GREEN airfield?

Answer 2

GREEN - Primary Alternate.

Suitable RWY, taxiways and aprons
Full RFF cover.
Full range of ground handling and some engineering cover
Primary diversion in all circumstances including medical

Question 3

Airfield Classification- what is a YELLOW airfield?

Answer 3

Yellow - Secondary Alternate 
Suitable RWYs, taxiways and aprons
Basic RFF cover
Basic Ground Handling
PAX Handling not assured.

Question 4

Airfield Classification- what is a RED airfield?

Answer 4

RED - Emergency
At least 1 Suitable RWY
Basic RFF Cover
Only use if no other suitable alternative
Ground Manoeuvring and Recovery of Aircraft NOT assured.