Interspiro BA set

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Across
  1. 1. HUD
  2. 3. wear for 50 bars
  3. 6. new version of the whistle
  4. 7. DDU
  5. 9. apparatus computer BAC
  6. 11. vpu
  7. 14. test carried out before entering the risk area
  8. 15. the only determining factor as to wether a facemask test is done
  9. 16. used to be called the bypass
  10. 17. number of BA sets at Ely station
Down
  1. 2. etap
  2. 4. cylinder handwheel to open
  3. 5. test undertaken at start of shift
  4. 8. name of the hip belt
  5. 10. old style gauge type
  6. 12. clip found in the BA pouch
  7. 13. name of comms unit