[edwest2]

Hello Andy,


Based on my research, new code books were issued daily. Likely in the case that if one was captured by the enemy, its useful life would be limited. In any case, the RAF used a three letter code. Their maps carried basic information, including longitude and latitude, so the information you've presented is likely a coded latitude and longitude plus a heading for the convoy sighted.

As far as area codes, it appears that aircraft crews were given a search grid based on the assignment. I have found no specific area codes. So a mission would be: "Patrol a box defined by these latitudes and longitudes." Of course, information would be given about suspected and known flak positions at or near the target/search area.





Best,
Ed