Across
- 1. Fuel state needed for recovery, or, I am proceeding to specified base/carrier
- 3. Tacco
- 6. Contact is above layer depth
- 7. Reporting unit doesn't hold contact any more for a track it is responsible for
- 8. Stop snorkelling, or, I am not snorkelling
- 14. Long range MPA
- 19. Home airfield/carrier
- 20. Call sign of ACU
- 22. Height of contact in hundreds of feet
- 24. Do not open fire unless targets have been ident. as hostile
- 25. Sub contact is using battery propulsion
- 26. Flying over land
- 27. Visual sighting of a periscope
- 28. Increasing in range
- 31. Height of friendly aircraft in hundreds of feet
- 34. Tactical data system computer
- 36. Unidentified aircraft
- 37. Last known position of sub or suspected sub after contact has been lost
- 40. Area within which units may interfere with ASW torpedoes
- 43. Equipment is operating efficiently
- 44. Height of friendly aircraft in thousands of feet
- 46. An ESM emission which has been assigned to a number of the track block
- 47. A radar contact that has suddenly disappeared
- 48. Range to a target/object in hundreds of yards
Down
- 2. I am over the datum, target, or position indicated
- 3. Contact is classified as probable submarine
- 4. Surface/sub launched anti-ship missile
- 5. Hostile nuclear sub
- 9. A friendly ship/sub/aircraft with which I am operating
- 10. Flying over water
- 11. Radar or emitter equipment
- 12. Laying sonobuoys
- 13. Your last transmission disclosed friendly information
- 15. Requested action is authorised
- 16. Air launched anti-ship missile
- 17. A vectored attack
- 18. IFF
- 19. Snorkel, or, I am snorkelling
- 21. Carry out briefed action
- 23. Contact is classified as certain submarine
- 29. Contact has been classified as non submarine
- 30. Parent ship
- 32. Fishing or other small craft
- 33. Aircraft identified as an enemy
- 35. Contact is classified as possible submarine (high/low)
- 38. Contact is below layer depth
- 39. TACAN
- 41. Submerged object is detected
- 42. Equipment is operative
- 45. Submarine depth in tens of ft
- 47. Operate IFF
